mirror of
https://github.com/rtlsdrblog/rtl-sdr-blog.git
synced 2025-03-26 21:45:29 +01:00
35729e7ee4
This was causing the 'pulsing' of the DC offset spike. Signed-off-by: Steve Markgraf <steve@steve-m.de>
2070 lines
40 KiB
C
2070 lines
40 KiB
C
/*
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* Elonics E4000 tuner driver, taken from the kernel driver that can be found
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* on http://linux.terratec.de/tv_en.html
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*
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* This driver is a mess, and should be replaced by the osmo-sdr E4000 driver
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*
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*/
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#include <stdint.h>
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#include "rtlsdr_i2c.h"
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#include "tuner_e4000.h"
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#define FUNCTION_ERROR 1
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#define FUNCTION_SUCCESS 0
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#define NO_USE 0
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#define LEN_2_BYTE 2
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#define I2C_BUFFER_LEN 128
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#define YES 1
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#define NO 0
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#define CRYSTAL_FREQ 28800000
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/* glue functions to rtl-sdr code */
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int
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I2CReadByte(
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void *pTuner,
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unsigned char NoUse,
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unsigned char RegAddr,
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unsigned char *pReadingByte
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)
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{
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uint8_t data = RegAddr;
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if (rtlsdr_i2c_write((rtlsdr_dev_t *)pTuner, E4K_I2C_ADDR, &data, 1) < 0)
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return E4000_I2C_FAIL;
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if (rtlsdr_i2c_read((rtlsdr_dev_t *)pTuner, E4K_I2C_ADDR, &data, 1) < 0)
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return E4000_I2C_FAIL;
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*pReadingByte = data;
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return E4000_I2C_SUCCESS;
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}
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int
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I2CWriteByte(void *pTuner,
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unsigned char NoUse,
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unsigned char RegAddr,
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unsigned char WritingByte
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)
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{
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uint8_t data[2];
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data[0] = RegAddr;
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data[1] = WritingByte;
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if (rtlsdr_i2c_write((rtlsdr_dev_t *)pTuner, E4K_I2C_ADDR, data, 2) < 0)
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return E4000_I2C_FAIL;
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return E4000_I2C_SUCCESS;
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}
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int
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I2CWriteArray(
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void *pTuner,
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unsigned char NoUse,
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unsigned char RegStartAddr,
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unsigned char ByteNum,
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unsigned char *pWritingBytes
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)
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{
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unsigned int i;
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uint8_t WritingBuffer[I2C_BUFFER_LEN];
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WritingBuffer[0] = RegStartAddr;
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for(i = 0; i < ByteNum; i++)
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WritingBuffer[1 + i] = pWritingBytes[i];
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if (rtlsdr_i2c_write((rtlsdr_dev_t *)pTuner, E4K_I2C_ADDR, WritingBuffer, ByteNum + 1) < 0)
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return E4000_I2C_FAIL;
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return E4000_I2C_SUCCESS;
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}
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/**
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@see TUNER_FP_INITIALIZE
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*/
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int
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e4000_Initialize(void *pTuner
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)
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{
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// Initialize tuner.
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// Note: Call E4000 source code functions.
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if(tunerreset(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(Tunerclock(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(Qpeak(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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#if 0
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if(DCoffloop(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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#endif
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if(GainControlinit(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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return FUNCTION_SUCCESS;
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error_status_execute_function:
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return FUNCTION_ERROR;
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}
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/**
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@see TUNER_FP_SET_RF_FREQ_HZ
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*/
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int
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e4000_SetRfFreqHz(
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void *pTuner,
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unsigned long RfFreqHz
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)
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{
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// E4000_EXTRA_MODULE *pExtra;
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int RfFreqKhz;
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int CrystalFreqKhz;
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int CrystalFreqHz = CRYSTAL_FREQ;
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// Set tuner RF frequency in KHz.
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// Note: 1. RfFreqKhz = round(RfFreqHz / 1000)
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// CrystalFreqKhz = round(CrystalFreqHz / 1000)
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// 2. Call E4000 source code functions.
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RfFreqKhz = (int)((RfFreqHz + 500) / 1000);
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CrystalFreqKhz = (int)((CrystalFreqHz + 500) / 1000);
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if(Gainmanual(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(E4000_gain_freq(pTuner, RfFreqKhz) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(PLL(pTuner, CrystalFreqKhz, RfFreqKhz) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(LNAfilter(pTuner, RfFreqKhz) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(freqband(pTuner, RfFreqKhz) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(DCoffLUT(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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if(GainControlauto(pTuner) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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return FUNCTION_SUCCESS;
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error_status_execute_function:
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return FUNCTION_ERROR;
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}
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/**
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@brief Set E4000 tuner bandwidth.
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*/
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int
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e4000_SetBandwidthHz(
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void *pTuner,
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unsigned long BandwidthHz
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)
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{
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// E4000_EXTRA_MODULE *pExtra;
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int BandwidthKhz;
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int CrystalFreqKhz;
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int CrystalFreqHz = CRYSTAL_FREQ;
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// Get tuner extra module.
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// pExtra = &(pTuner->Extra.E4000);
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// Set tuner bandwidth Hz.
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// Note: 1. BandwidthKhz = round(BandwidthHz / 1000)
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// CrystalFreqKhz = round(CrystalFreqHz / 1000)
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// 2. Call E4000 source code functions.
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BandwidthKhz = (int)((BandwidthHz + 500) / 1000);
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CrystalFreqKhz = (int)((CrystalFreqHz + 500) / 1000);
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if(IFfilter(pTuner, BandwidthKhz, CrystalFreqKhz) != E4000_1_SUCCESS)
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goto error_status_execute_function;
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return FUNCTION_SUCCESS;
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error_status_execute_function:
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return FUNCTION_ERROR;
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}
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// The following context is source code provided by Elonics.
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// Elonics source code - E4000_API_rev2_04_realtek.cpp
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//****************************************************************************/
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//
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// Filename E4000_initialisation.c
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// Revision 2.04
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//
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// Description:
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// Initialisation script for the Elonics E4000 revC tuner
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//
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// Copyright (c) Elonics Ltd
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//
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// Any software supplied free of charge for use with elonics
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// evaluation kits is supplied without warranty and for
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// evaluation purposes only. Incorporation of any of this
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// code into products for open sale is permitted but only at
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// the user's own risk. Elonics accepts no liability for the
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// integrity of this software whatsoever.
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//
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//
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//****************************************************************************/
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//#include <stdio.h>
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//#include <stdlib.h>
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//
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// User defined variable definitions
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//
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/*
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int Ref_clk = 26000; // Reference clock frequency(kHz).
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int Freq = 590000; // RF Frequency (kHz)
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int bandwidth = 8000; //RF channel bandwith (kHz)
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*/
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//
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// API defined variable definitions
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//int VCO_freq;
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//unsigned char writearray[5];
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//unsigned char read1[1];
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//int status;
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//
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//
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// function definitions
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//
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/*
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int tunerreset ();
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int Tunerclock();
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int filtercal();
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int Qpeak();
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int PLL(int Ref_clk, int Freq);
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int LNAfilter(int Freq);
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int IFfilter(int bandwidth, int Ref_clk);
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int freqband(int Freq);
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int DCoffLUT();
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int DCoffloop();
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int commonmode();
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int GainControlinit();
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*/
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//
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//****************************************************************************
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// --- Public functions ------------------------------------------------------
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/****************************************************************************\
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* Function: tunerreset
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*
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* Detailed Description:
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* The function resets the E4000 tuner. (Register 0x00).
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*
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\****************************************************************************/
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int tunerreset(void *pTuner)
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{
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unsigned char writearray[5];
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int status;
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writearray[0] = 64;
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// For dummy I2C command, don't check executing status.
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status=I2CWriteByte (pTuner, 200,2,writearray[0]);
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status=I2CWriteByte (pTuner, 200,2,writearray[0]);
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//printf("\nRegister 0=%d", writearray[0]);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 0;
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status=I2CWriteByte (pTuner, 200,9,writearray[0]);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 0;
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status=I2CWriteByte (pTuner, 200,5,writearray[0]);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 7;
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status=I2CWriteByte (pTuner, 200,0,writearray[0]);
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//printf("\nRegister 0=%d", writearray[0]);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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return E4000_1_SUCCESS;
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}
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/****************************************************************************\
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* Function: Tunerclock
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*
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* Detailed Description:
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* The function configures the E4000 clock. (Register 0x06, 0x7a).
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* Function disables the clock - values can be modified to enable if required.
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\****************************************************************************/
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int Tunerclock(void *pTuner)
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{
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unsigned char writearray[5];
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int status;
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writearray[0] = 0;
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status=I2CWriteByte(pTuner, 200,6,writearray[0]);
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//printf("\nRegister 6=%d", writearray[0]);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 150;
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status=I2CWriteByte(pTuner, 200,122,writearray[0]);
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//printf("\nRegister 7a=%d", writearray[0]);
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//**Modify commands above with value required if output clock is required,
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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return E4000_1_SUCCESS;
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}
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/****************************************************************************\
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* Function: filtercal
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*
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* Detailed Description:
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* Instructs RC filter calibration. (Register 0x7b).
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*
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\****************************************************************************/
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/*
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int filtercal(void *pTuner)
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{
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//writearray[0] = 1;
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//I2CWriteByte (pTuner, 200,123,writearray[0]);
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//printf("\nRegister 7b=%d", writearray[0]);
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//return;
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return E4000_1_SUCCESS;
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}
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*/
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/****************************************************************************\
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* Function: Qpeak()
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*
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* Detailed Description:
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* The function configures the E4000 gains.
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* Also sigma delta controller. (Register 0x82).
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*
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\****************************************************************************/
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int Qpeak(void *pTuner)
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{
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unsigned char writearray[5];
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int status;
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writearray[0] = 1;
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writearray[1] = 254;
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status=I2CWriteArray(pTuner, 200,126,2,writearray);
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//printf("\nRegister 7e=%d", writearray[0]);
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//printf("\nRegister 7f=%d", writearray[1]);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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status=I2CWriteByte (pTuner, 200,130,0);
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//printf("\nRegister 82=0");
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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status=I2CWriteByte (pTuner, 200,36,5);
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//printf("\nRegister 24=5");
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 32;
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writearray[1] = 1;
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status=I2CWriteArray(pTuner, 200,135,2,writearray);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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//printf("\nRegister 87=%d", writearray[0]);
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//printf("\nRegister 88=%d", writearray[1]);
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return E4000_1_SUCCESS;
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}
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/****************************************************************************\
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* Function: E4000_gain_freq()
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*
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* Detailed Description:
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* The function configures the E4000 gains vs. freq
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* 0xa3 to 0xa7. Also 0x24.
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*
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\****************************************************************************/
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int E4000_gain_freq(void *pTuner, int Freq)
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{
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unsigned char writearray[5];
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int status;
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if (Freq<=350000)
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{
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writearray[0] = 0x10;
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writearray[1] = 0x42;
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writearray[2] = 0x09;
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writearray[3] = 0x21;
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writearray[4] = 0x94;
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}
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else if(Freq>=1000000)
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{
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writearray[0] = 0x10;
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writearray[1] = 0x42;
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writearray[2] = 0x09;
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writearray[3] = 0x21;
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writearray[4] = 0x94;
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}
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else
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{
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writearray[0] = 0x10;
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writearray[1] = 0x42;
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writearray[2] = 0x09;
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writearray[3] = 0x21;
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writearray[4] = 0x94;
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}
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status=I2CWriteArray(pTuner, 200,163,5,writearray);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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if (Freq<=350000)
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{
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writearray[0] = 94;
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writearray[1] = 6;
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status=I2CWriteArray(pTuner, 200,159,2,writearray);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 0;
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status=I2CWriteArray(pTuner, 200,136,1,writearray);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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}
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else
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{
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writearray[0] = 127;
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writearray[1] = 7;
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status=I2CWriteArray(pTuner, 200,159,2,writearray);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 1;
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status=I2CWriteArray(pTuner, 200,136,1,writearray);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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}
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//printf("\nRegister 9f=%d", writearray[0]);
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//printf("\nRegister a0=%d", writearray[1]);
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return E4000_1_SUCCESS;
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}
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/****************************************************************************\
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* Function: DCoffloop
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*
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* Detailed Description:
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* Populates DC offset LUT. (Registers 0x2d, 0x70, 0x71).
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* Turns on DC offset LUT and time varying DC offset.
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\****************************************************************************/
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int DCoffloop(void *pTuner)
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{
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unsigned char writearray[5];
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int status;
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//writearray[0]=0;
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//I2CWriteByte(pTuner, 200,115,writearray[0]);
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//printf("\nRegister 73=%d", writearray[0]);
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writearray[0] = 31;
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status=I2CWriteByte(pTuner, 200,45,writearray[0]);
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//printf("\nRegister 2d=%d", writearray[0]);
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if(status != E4000_I2C_SUCCESS)
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{
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return E4000_1_FAIL;
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}
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writearray[0] = 1;
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writearray[1] = 1;
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status=I2CWriteArray(pTuner, 200,112,2,writearray);
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//printf("\nRegister 70=%d", writearray[0]);
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//printf("\nRegister 71=%d", writearray[0]);
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if(status != E4000_I2C_SUCCESS)
|
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{
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return E4000_1_FAIL;
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}
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|
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return E4000_1_SUCCESS;
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}
|
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/****************************************************************************\
|
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* Function: commonmode
|
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*
|
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* Detailed Description:
|
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* Configures common mode voltage. (Registers 0x2f).
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*
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\****************************************************************************/
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/*
|
|
int commonmode(void *pTuner)
|
|
{
|
|
//writearray[0] = 0;
|
|
//I2CWriteByte(Device_address,47,writearray[0]);
|
|
//printf("\nRegister 0x2fh = %d", writearray[0]);
|
|
// Sets 550mV. Modify if alternative is desired.
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
*/
|
|
/****************************************************************************\
|
|
* Function: GainControlinit
|
|
*
|
|
* Detailed Description:
|
|
* Configures gain control mode. (Registers 0x1d, 0x1e, 0x1f, 0x20, 0x21,
|
|
* 0x1a, 0x74h, 0x75h).
|
|
* User may wish to modify values depending on usage scenario.
|
|
* Routine configures LNA: autonomous gain control
|
|
* IF PWM gain control.
|
|
* PWM thresholds = default
|
|
* Mixer: switches when LNA gain =7.5dB
|
|
* Sensitivity / Linearity mode: manual switch
|
|
*
|
|
\****************************************************************************/
|
|
int GainControlinit(void *pTuner)
|
|
{
|
|
unsigned char writearray[5];
|
|
unsigned char read1[1];
|
|
int status;
|
|
|
|
unsigned char sum=255;
|
|
|
|
writearray[0] = 23;
|
|
status=I2CWriteByte(pTuner, 200,26,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
//printf("\nRegister 1a=%d", writearray[0]);
|
|
|
|
status=I2CReadByte(pTuner, 201,27,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = 16;
|
|
writearray[1] = 4;
|
|
writearray[2] = 26;
|
|
writearray[3] = 15;
|
|
writearray[4] = 167;
|
|
status=I2CWriteArray(pTuner, 200,29,5,writearray);
|
|
//printf("\nRegister 1d=%d", writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = 81;
|
|
status=I2CWriteByte(pTuner, 200,134,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
//printf("\nRegister 86=%d", writearray[0]);
|
|
|
|
//For Realtek - gain control logic
|
|
status=I2CReadByte(pTuner, 201,27,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
if(read1[0]<=sum)
|
|
{
|
|
sum=read1[0];
|
|
}
|
|
|
|
status=I2CWriteByte(pTuner, 200,31,writearray[2]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
status=I2CReadByte(pTuner, 201,27,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
if(read1[0] <= sum)
|
|
{
|
|
sum=read1[0];
|
|
}
|
|
|
|
status=I2CWriteByte(pTuner, 200,31,writearray[2]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
status=I2CReadByte(pTuner, 201,27,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
if(read1[0] <= sum)
|
|
{
|
|
sum=read1[0];
|
|
}
|
|
|
|
status=I2CWriteByte(pTuner, 200,31,writearray[2]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
status=I2CReadByte(pTuner, 201,27,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
if(read1[0] <= sum)
|
|
{
|
|
sum=read1[0];
|
|
}
|
|
|
|
status=I2CWriteByte(pTuner, 200,31,writearray[2]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
status=I2CReadByte(pTuner, 201,27,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
if (read1[0]<=sum)
|
|
{
|
|
sum=read1[0];
|
|
}
|
|
|
|
writearray[0]=sum;
|
|
status=I2CWriteByte(pTuner, 200,27,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
//printf("\nRegister 1b=%d", writearray[0]);
|
|
//printf("\nRegister 1e=%d", writearray[1]);
|
|
//printf("\nRegister 1f=%d", writearray[2]);
|
|
//printf("\nRegister 20=%d", writearray[3]);
|
|
//printf("\nRegister 21=%d", writearray[4]);
|
|
//writearray[0] = 3;
|
|
//writearray[1] = 252;
|
|
//writearray[2] = 3;
|
|
//writearray[3] = 252;
|
|
//I2CWriteArray(pTuner, 200,116,4,writearray);
|
|
//printf("\nRegister 74=%d", writearray[0]);
|
|
//printf("\nRegister 75=%d", writearray[1]);
|
|
//printf("\nRegister 76=%d", writearray[2]);
|
|
//printf("\nRegister 77=%d", writearray[3]);
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
|
|
/****************************************************************************\
|
|
* Main program
|
|
*
|
|
*
|
|
*
|
|
\****************************************************************************/
|
|
/*
|
|
int main()
|
|
{
|
|
tunerreset ();
|
|
Tunerclock();
|
|
//filtercal();
|
|
Qpeak();
|
|
//PLL(Ref_clk, Freq);
|
|
//LNAfilter(Freq);
|
|
//IFfilter(bandwidth, Ref_clk);
|
|
//freqband(Freq);
|
|
//DCoffLUT();
|
|
DCoffloop();
|
|
//commonmode();
|
|
GainControlinit();
|
|
// system("PAUSE");
|
|
return(0);
|
|
}
|
|
*/
|
|
|
|
|
|
// Elonics source code - frequency_change_rev2.04_realtek.c
|
|
|
|
|
|
//****************************************************************************/
|
|
//
|
|
// Filename E4000_freqchangerev2.04.c
|
|
// Revision 2.04
|
|
//
|
|
// Description:
|
|
// Frequency change script for the Elonics E4000 revB tuner
|
|
//
|
|
// Copyright (c) Elonics Ltd
|
|
//
|
|
// Any software supplied free of charge for use with elonics
|
|
// evaluation kits is supplied without warranty and for
|
|
// evaluation purposes only. Incorporation of any of this
|
|
// code into products for open sale is permitted but only at
|
|
// the user's own risk. Elonics accepts no liability for the
|
|
// integrity of this software whatsoever.
|
|
//
|
|
//
|
|
//****************************************************************************/
|
|
//#include <stdio.h>
|
|
//#include <stdlib.h>
|
|
//
|
|
// User defined variable definitions
|
|
//
|
|
/*
|
|
int Ref_clk = 20000; // Reference clock frequency(kHz).
|
|
int Freq = 590000; // RF Frequency (kHz)
|
|
int bandwidth = 8; //RF channel bandwith (MHz)
|
|
*/
|
|
//
|
|
// API defined variable definitions
|
|
//int VCO_freq;
|
|
//unsigned char writearray[5];
|
|
//unsigned char read1[1];
|
|
//int E4000_1_SUCCESS;
|
|
//int E4000_1_FAIL;
|
|
//int E4000_I2C_SUCCESS;
|
|
//int status;
|
|
//
|
|
//
|
|
// function definitions
|
|
//
|
|
/*
|
|
int Gainmanual();
|
|
int PLL(int Ref_clk, int Freq);
|
|
int LNAfilter(int Freq);
|
|
int IFfilter(int bandwidth, int Ref_clk);
|
|
int freqband(int Freq);
|
|
int DCoffLUT();
|
|
int GainControlauto();
|
|
*/
|
|
//
|
|
//****************************************************************************
|
|
// --- Public functions ------------------------------------------------------
|
|
/****************************************************************************\
|
|
//****************************************************************************\
|
|
* Function: Gainmanual
|
|
*
|
|
* Detailed Description:
|
|
* Sets Gain control to serial interface control.
|
|
*
|
|
\****************************************************************************/
|
|
int Gainmanual(void *pTuner)
|
|
{
|
|
unsigned char writearray[5];
|
|
int status;
|
|
|
|
writearray[0]=0;
|
|
status=I2CWriteByte(pTuner, 200,26,writearray[0]);
|
|
//printf("\nRegister 1a=%d", writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = 0;
|
|
status=I2CWriteByte (pTuner, 200,9,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = 0;
|
|
status=I2CWriteByte (pTuner, 200,5,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
|
|
/****************************************************************************\
|
|
* Function: PLL
|
|
*
|
|
* Detailed Description:
|
|
* Configures E4000 PLL divider & sigma delta. 0x0d,0x09, 0x0a, 0x0b).
|
|
*
|
|
\****************************************************************************/
|
|
int PLL(void *pTuner, int Ref_clk, int Freq)
|
|
{
|
|
int VCO_freq;
|
|
unsigned char writearray[5];
|
|
int status;
|
|
|
|
unsigned char divider;
|
|
int intVCOfreq;
|
|
int SigDel;
|
|
int SigDel2;
|
|
int SigDel3;
|
|
// int harmonic_freq;
|
|
// int offset;
|
|
|
|
if (Freq<=72400)
|
|
{
|
|
writearray[4] = 15;
|
|
VCO_freq=Freq*48;
|
|
}
|
|
else if (Freq<=81200)
|
|
{
|
|
writearray[4] = 14;
|
|
VCO_freq=Freq*40;
|
|
}
|
|
else if (Freq<=108300)
|
|
{
|
|
writearray[4]=13;
|
|
VCO_freq=Freq*32;
|
|
}
|
|
else if (Freq<=162500)
|
|
{
|
|
writearray[4]=12;
|
|
VCO_freq=Freq*24;
|
|
}
|
|
else if (Freq<=216600)
|
|
{
|
|
writearray[4]=11;
|
|
VCO_freq=Freq*16;
|
|
}
|
|
else if (Freq<=325000)
|
|
{
|
|
writearray[4]=10;
|
|
VCO_freq=Freq*12;
|
|
}
|
|
else if (Freq<=350000)
|
|
{
|
|
writearray[4]=9;
|
|
VCO_freq=Freq*8;
|
|
}
|
|
else if (Freq<=432000)
|
|
{
|
|
writearray[4]=3;
|
|
VCO_freq=Freq*8;
|
|
}
|
|
else if (Freq<=667000)
|
|
{
|
|
writearray[4]=2;
|
|
VCO_freq=Freq*6;
|
|
}
|
|
else if (Freq<=1200000)
|
|
{
|
|
writearray[4]=1;
|
|
VCO_freq=Freq*4;
|
|
}
|
|
else
|
|
{
|
|
writearray[4]=0;
|
|
VCO_freq=Freq*2;
|
|
}
|
|
|
|
//printf("\nVCOfreq=%d", VCO_freq);
|
|
// divider = VCO_freq * 1000 / Ref_clk;
|
|
divider = VCO_freq / Ref_clk;
|
|
//printf("\ndivider=%d", divider);
|
|
writearray[0]= divider;
|
|
// intVCOfreq = divider * Ref_clk /1000;
|
|
intVCOfreq = divider * Ref_clk;
|
|
//printf("\ninteger VCO freq=%d", intVCOfreq);
|
|
// SigDel=65536 * 1000 * (VCO_freq - intVCOfreq) / Ref_clk;
|
|
SigDel=65536 * (VCO_freq - intVCOfreq) / Ref_clk;
|
|
//printf("\nSigma delta=%d", SigDel);
|
|
if (SigDel<=1024)
|
|
{
|
|
SigDel = 1024;
|
|
}
|
|
else if (SigDel>=64512)
|
|
{
|
|
SigDel=64512;
|
|
}
|
|
SigDel2 = SigDel / 256;
|
|
//printf("\nSigdel2=%d", SigDel2);
|
|
writearray[2] = (unsigned char)SigDel2;
|
|
SigDel3 = SigDel - (256 * SigDel2);
|
|
//printf("\nSig del3=%d", SigDel3);
|
|
writearray[1]= (unsigned char)SigDel3;
|
|
writearray[3]=(unsigned char)0;
|
|
status=I2CWriteArray(pTuner, 200,9,5,writearray);
|
|
//printf("\nRegister 9=%d", writearray[0]);
|
|
//printf("\nRegister a=%d", writearray[1]);
|
|
//printf("\nRegister b=%d", writearray[2]);
|
|
//printf("\nRegister d=%d", writearray[4]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
if (Freq<=82900)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=1;
|
|
}
|
|
else if (Freq<=89900)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=9;
|
|
}
|
|
else if (Freq<=111700)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=1;
|
|
}
|
|
else if (Freq<=118700)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=1;
|
|
}
|
|
else if (Freq<=140500)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=3;
|
|
}
|
|
else if (Freq<=147500)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=11;
|
|
}
|
|
else if (Freq<=169300)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=3;
|
|
}
|
|
else if (Freq<=176300)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=11;
|
|
}
|
|
else if (Freq<=198100)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=3;
|
|
}
|
|
else if (Freq<=205100)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=19;
|
|
}
|
|
else if (Freq<=226900)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=3;
|
|
}
|
|
else if (Freq<=233900)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=3;
|
|
}
|
|
else if (Freq<=350000)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=3;
|
|
}
|
|
else if (Freq<=485600)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=493600)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=514400)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=522400)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=543200)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=551200)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=13;
|
|
}
|
|
else if (Freq<=572000)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=580000)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=13;
|
|
}
|
|
else if (Freq<=600800)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=608800)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=13;
|
|
}
|
|
else if (Freq<=629600)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=637600)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=13;
|
|
}
|
|
else if (Freq<=658400)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=666400)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=13;
|
|
}
|
|
else if (Freq<=687200)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=695200)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=13;
|
|
}
|
|
else if (Freq<=716000)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=724000)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=13;
|
|
}
|
|
else if (Freq<=744800)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=752800)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=21;
|
|
}
|
|
else if (Freq<=773600)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=781600)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=21;
|
|
}
|
|
else if (Freq<=802400)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=810400)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=21;
|
|
}
|
|
else if (Freq<=831200)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=839200)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=21;
|
|
}
|
|
else if (Freq<=860000)
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=5;
|
|
}
|
|
else if (Freq<=868000)
|
|
{
|
|
writearray[0]=3;
|
|
writearray[2]=21;
|
|
}
|
|
else
|
|
{
|
|
writearray[0]=0;
|
|
writearray[2]=7;
|
|
}
|
|
|
|
status=I2CWriteByte (pTuner, 200,7,writearray[2]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
status=I2CWriteByte (pTuner, 200,5,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
|
|
/****************************************************************************\
|
|
* Function: LNAfilter
|
|
*
|
|
* Detailed Description:
|
|
* The function configures the E4000 LNA filter. (Register 0x10).
|
|
*
|
|
\****************************************************************************/
|
|
|
|
int LNAfilter(void *pTuner, int Freq)
|
|
{
|
|
unsigned char writearray[5];
|
|
int status;
|
|
|
|
if(Freq<=370000)
|
|
{
|
|
writearray[0]=0;
|
|
}
|
|
else if(Freq<=392500)
|
|
{
|
|
writearray[0]=1;
|
|
}
|
|
else if(Freq<=415000)
|
|
{
|
|
writearray[0] =2;
|
|
}
|
|
else if(Freq<=437500)
|
|
{
|
|
writearray[0]=3;
|
|
}
|
|
else if(Freq<=462500)
|
|
{
|
|
writearray[0]=4;
|
|
}
|
|
else if(Freq<=490000)
|
|
{
|
|
writearray[0]=5;
|
|
}
|
|
else if(Freq<=522500)
|
|
{
|
|
writearray[0]=6;
|
|
}
|
|
else if(Freq<=557500)
|
|
{
|
|
writearray[0]=7;
|
|
}
|
|
else if(Freq<=595000)
|
|
{
|
|
writearray[0]=8;
|
|
}
|
|
else if(Freq<=642500)
|
|
{
|
|
writearray[0]=9;
|
|
}
|
|
else if(Freq<=695000)
|
|
{
|
|
writearray[0]=10;
|
|
}
|
|
else if(Freq<=740000)
|
|
{
|
|
writearray[0]=11;
|
|
}
|
|
else if(Freq<=800000)
|
|
{
|
|
writearray[0]=12;
|
|
}
|
|
else if(Freq<=865000)
|
|
{
|
|
writearray[0] =13;
|
|
}
|
|
else if(Freq<=930000)
|
|
{
|
|
writearray[0]=14;
|
|
}
|
|
else if(Freq<=1000000)
|
|
{
|
|
writearray[0]=15;
|
|
}
|
|
else if(Freq<=1310000)
|
|
{
|
|
writearray[0]=0;
|
|
}
|
|
else if(Freq<=1340000)
|
|
{
|
|
writearray[0]=1;
|
|
}
|
|
else if(Freq<=1385000)
|
|
{
|
|
writearray[0]=2;
|
|
}
|
|
else if(Freq<=1427500)
|
|
{
|
|
writearray[0]=3;
|
|
}
|
|
else if(Freq<=1452500)
|
|
{
|
|
writearray[0]=4;
|
|
}
|
|
else if(Freq<=1475000)
|
|
{
|
|
writearray[0]=5;
|
|
}
|
|
else if(Freq<=1510000)
|
|
{
|
|
writearray[0]=6;
|
|
}
|
|
else if(Freq<=1545000)
|
|
{
|
|
writearray[0]=7;
|
|
}
|
|
else if(Freq<=1575000)
|
|
{
|
|
writearray[0] =8;
|
|
}
|
|
else if(Freq<=1615000)
|
|
{
|
|
writearray[0]=9;
|
|
}
|
|
else if(Freq<=1650000)
|
|
{
|
|
writearray[0] =10;
|
|
}
|
|
else if(Freq<=1670000)
|
|
{
|
|
writearray[0]=11;
|
|
}
|
|
else if(Freq<=1690000)
|
|
{
|
|
writearray[0]=12;
|
|
}
|
|
else if(Freq<=1710000)
|
|
{
|
|
writearray[0]=13;
|
|
}
|
|
else if(Freq<=1735000)
|
|
{
|
|
writearray[0]=14;
|
|
}
|
|
else
|
|
{
|
|
writearray[0]=15;
|
|
}
|
|
status=I2CWriteByte (pTuner, 200,16,writearray[0]);
|
|
//printf("\nRegister 10=%d", writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
/****************************************************************************\
|
|
* Function: IFfilter
|
|
*
|
|
* Detailed Description:
|
|
* The function configures the E4000 IF filter. (Register 0x11,0x12).
|
|
*
|
|
\****************************************************************************/
|
|
int IFfilter(void *pTuner, int bandwidth, int Ref_clk)
|
|
{
|
|
unsigned char writearray[5];
|
|
int status;
|
|
|
|
int IF_BW;
|
|
|
|
IF_BW = bandwidth / 2;
|
|
if(IF_BW<=2150)
|
|
{
|
|
writearray[0]=253;
|
|
writearray[1]=31;
|
|
}
|
|
else if(IF_BW<=2200)
|
|
{
|
|
writearray[0]=253;
|
|
writearray[1]=30;
|
|
}
|
|
else if(IF_BW<=2240)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=29;
|
|
}
|
|
else if(IF_BW<=2280)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=28;
|
|
}
|
|
else if(IF_BW<=2300)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=27;
|
|
}
|
|
else if(IF_BW<=2400)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=26;
|
|
}
|
|
else if(IF_BW<=2450)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=25;
|
|
}
|
|
else if(IF_BW<=2500)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=24;
|
|
}
|
|
else if(IF_BW<=2550)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=23;
|
|
}
|
|
else if(IF_BW<=2600)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=22;
|
|
}
|
|
else if(IF_BW<=2700)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=21;
|
|
}
|
|
else if(IF_BW<=2750)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=20;
|
|
}
|
|
else if(IF_BW<=2800)
|
|
{
|
|
writearray[0]=252;
|
|
writearray[1]=19;
|
|
}
|
|
else if(IF_BW<=2900)
|
|
{
|
|
writearray[0]=251;
|
|
writearray[1]=18;
|
|
}
|
|
else if(IF_BW<=2950)
|
|
{
|
|
writearray[0]=251;
|
|
writearray[1]=17;
|
|
}
|
|
else if(IF_BW<=3000)
|
|
{
|
|
writearray[0]=251;
|
|
writearray[1]=16;
|
|
}
|
|
else if(IF_BW<=3100)
|
|
{
|
|
writearray[0]=251;
|
|
writearray[1]=15;
|
|
}
|
|
else if(IF_BW<=3200)
|
|
{
|
|
writearray[0]=250;
|
|
writearray[1]=14;
|
|
}
|
|
else if(IF_BW<=3300)
|
|
{
|
|
writearray[0]=250;
|
|
writearray[1]=13;
|
|
}
|
|
else if(IF_BW<=3400)
|
|
{
|
|
writearray[0]=249;
|
|
writearray[1]=12;
|
|
}
|
|
else if(IF_BW<=3600)
|
|
{
|
|
writearray[0]=249;
|
|
writearray[1]=11;
|
|
}
|
|
else if(IF_BW<=3700)
|
|
{
|
|
writearray[0]=249;
|
|
writearray[1]=10;
|
|
}
|
|
else if(IF_BW<=3800)
|
|
{
|
|
writearray[0]=248;
|
|
writearray[1]=9;
|
|
}
|
|
else if(IF_BW<=3900)
|
|
{
|
|
writearray[0]=248;
|
|
writearray[1]=8;
|
|
}
|
|
else if(IF_BW<=4100)
|
|
{
|
|
writearray[0]=248;
|
|
writearray[1]=7;
|
|
}
|
|
else if(IF_BW<=4300)
|
|
{
|
|
writearray[0]=247;
|
|
writearray[1]=6;
|
|
}
|
|
else if(IF_BW<=4400)
|
|
{
|
|
writearray[0]=247;
|
|
writearray[1]=5;
|
|
}
|
|
else if(IF_BW<=4600)
|
|
{
|
|
writearray[0]=247;
|
|
writearray[1]=4;
|
|
}
|
|
else if(IF_BW<=4800)
|
|
{
|
|
writearray[0]=246;
|
|
writearray[1]=3;
|
|
}
|
|
else if(IF_BW<=5000)
|
|
{
|
|
writearray[0]=246;
|
|
writearray[1]=2;
|
|
}
|
|
else if(IF_BW<=5300)
|
|
{
|
|
writearray[0]=245;
|
|
writearray[1]=1;
|
|
}
|
|
else if(IF_BW<=5500)
|
|
{
|
|
writearray[0]=245;
|
|
writearray[1]=0;
|
|
}
|
|
else
|
|
{
|
|
writearray[0]=0;
|
|
writearray[1]=32;
|
|
}
|
|
status=I2CWriteArray(pTuner, 200,17,2,writearray);
|
|
//printf("\nRegister 11=%d", writearray[0]);
|
|
//printf("\nRegister 12=%d", writearray[1]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
/****************************************************************************\
|
|
* Function: freqband
|
|
*
|
|
* Detailed Description:
|
|
* Configures the E4000 frequency band. (Registers 0x07, 0x78).
|
|
*
|
|
\****************************************************************************/
|
|
int freqband(void *pTuner, int Freq)
|
|
{
|
|
unsigned char writearray[5];
|
|
int status;
|
|
|
|
if (Freq<=140000)
|
|
{
|
|
writearray[0] = 3;
|
|
status=I2CWriteByte(pTuner, 200,120,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
}
|
|
else if (Freq<=350000)
|
|
{
|
|
writearray[0] = 3;
|
|
status=I2CWriteByte(pTuner, 200,120,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
}
|
|
else if (Freq<=1000000)
|
|
{
|
|
writearray[0] = 3;
|
|
status=I2CWriteByte(pTuner, 200,120,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
writearray[0] = 7;
|
|
status=I2CWriteByte(pTuner, 200,7,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = 0;
|
|
status=I2CWriteByte(pTuner, 200,120,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
/****************************************************************************\
|
|
* Function: DCoffLUT
|
|
*
|
|
* Detailed Description:
|
|
* Populates DC offset LUT. (Registers 0x50 - 0x53, 0x60 - 0x63).
|
|
*
|
|
\****************************************************************************/
|
|
int DCoffLUT(void *pTuner)
|
|
{
|
|
unsigned char writearray[5];
|
|
int status;
|
|
|
|
unsigned char read1[1];
|
|
unsigned char IOFF;
|
|
unsigned char QOFF;
|
|
unsigned char RANGE1;
|
|
// unsigned char RANGE2;
|
|
unsigned char QRANGE;
|
|
unsigned char IRANGE;
|
|
writearray[0] = 0;
|
|
writearray[1] = 126;
|
|
writearray[2] = 36;
|
|
status=I2CWriteArray(pTuner, 200,21,3,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Sets mixer & IF stage 1 gain = 00 and IF stg 2+ to max gain.
|
|
writearray[0] = 1;
|
|
status=I2CWriteByte(pTuner, 200,41,writearray[0]);
|
|
// Instructs a DC offset calibration.
|
|
status=I2CReadByte(pTuner, 201,42,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
IOFF=read1[0];
|
|
status=I2CReadByte(pTuner, 201,43,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
QOFF=read1[0];
|
|
status=I2CReadByte(pTuner, 201,44,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
RANGE1=read1[0];
|
|
//reads DC offset values back
|
|
if(RANGE1>=32)
|
|
{
|
|
RANGE1 = RANGE1 -32;
|
|
}
|
|
if(RANGE1>=16)
|
|
{
|
|
RANGE1 = RANGE1 - 16;
|
|
}
|
|
IRANGE=RANGE1;
|
|
QRANGE = (read1[0] - RANGE1) / 16;
|
|
|
|
writearray[0] = (IRANGE * 64) + IOFF;
|
|
status=I2CWriteByte(pTuner, 200,96,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = (QRANGE * 64) + QOFF;
|
|
status=I2CWriteByte(pTuner, 200,80,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Populate DC offset LUT
|
|
writearray[0] = 0;
|
|
writearray[1] = 127;
|
|
status=I2CWriteArray(pTuner, 200,21,2,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Sets mixer & IF stage 1 gain = 01 leaving IF stg 2+ at max gain.
|
|
writearray[0]= 1;
|
|
status=I2CWriteByte(pTuner, 200,41,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Instructs a DC offset calibration.
|
|
status=I2CReadByte(pTuner, 201,42,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
IOFF=read1[0];
|
|
status=I2CReadByte(pTuner, 201,43,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
QOFF=read1[0];
|
|
status=I2CReadByte(pTuner, 201,44,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
RANGE1=read1[0];
|
|
// Read DC offset values
|
|
if(RANGE1>=32)
|
|
{
|
|
RANGE1 = RANGE1 -32;
|
|
}
|
|
if(RANGE1>=16)
|
|
{
|
|
RANGE1 = RANGE1 - 16;
|
|
}
|
|
IRANGE = RANGE1;
|
|
QRANGE = (read1[0] - RANGE1) / 16;
|
|
|
|
writearray[0] = (IRANGE * 64) + IOFF;
|
|
status=I2CWriteByte(pTuner, 200,97,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = (QRANGE * 64) + QOFF;
|
|
status=I2CWriteByte(pTuner, 200,81,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Populate DC offset LUT
|
|
writearray[0] = 1;
|
|
status=I2CWriteByte(pTuner, 200,21,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Sets mixer & IF stage 1 gain = 11 leaving IF stg 2+ at max gain.
|
|
writearray[0] = 1;
|
|
status=I2CWriteByte(pTuner, 200,41,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Instructs a DC offset calibration.
|
|
status=I2CReadByte(pTuner, 201,42,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
IOFF=read1[0];
|
|
status=I2CReadByte(pTuner, 201,43,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
QOFF=read1[0];
|
|
status=I2CReadByte(pTuner, 201,44,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
RANGE1 = read1[0];
|
|
// Read DC offset values
|
|
if(RANGE1>=32)
|
|
{
|
|
RANGE1 = RANGE1 -32;
|
|
}
|
|
if(RANGE1>=16)
|
|
{
|
|
RANGE1 = RANGE1 - 16;
|
|
}
|
|
IRANGE = RANGE1;
|
|
QRANGE = (read1[0] - RANGE1) / 16;
|
|
writearray[0] = (IRANGE * 64) + IOFF;
|
|
status=I2CWriteByte(pTuner, 200,99,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = (QRANGE * 64) + QOFF;
|
|
status=I2CWriteByte(pTuner, 200,83,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Populate DC offset LUT
|
|
writearray[0] = 126;
|
|
status=I2CWriteByte(pTuner, 200,22,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Sets mixer & IF stage 1 gain = 11 leaving IF stg 2+ at max gain.
|
|
writearray[0] = 1;
|
|
status=I2CWriteByte(pTuner, 200,41,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
// Instructs a DC offset calibration.
|
|
status=I2CReadByte(pTuner, 201,42,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
IOFF=read1[0];
|
|
|
|
status=I2CReadByte(pTuner, 201,43,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
QOFF=read1[0];
|
|
|
|
status=I2CReadByte(pTuner, 201,44,read1);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
RANGE1=read1[0];
|
|
|
|
// Read DC offset values
|
|
if(RANGE1>=32)
|
|
{
|
|
RANGE1 = RANGE1 -32;
|
|
}
|
|
if(RANGE1>=16)
|
|
{
|
|
RANGE1 = RANGE1 - 16;
|
|
}
|
|
IRANGE = RANGE1;
|
|
QRANGE = (read1[0] - RANGE1) / 16;
|
|
|
|
writearray[0]=(IRANGE * 64) + IOFF;
|
|
status=I2CWriteByte(pTuner, 200,98,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
writearray[0] = (QRANGE * 64) + QOFF;
|
|
status=I2CWriteByte(pTuner, 200,82,writearray[0]);
|
|
// Populate DC offset LUT
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
/****************************************************************************\
|
|
* Function: GainControlinit
|
|
*
|
|
* Detailed Description:
|
|
* Configures gain control mode. (Registers 0x1a)
|
|
*
|
|
\****************************************************************************/
|
|
int GainControlauto(void *pTuner)
|
|
{
|
|
unsigned char writearray[5];
|
|
int status;
|
|
|
|
writearray[0] = 23;
|
|
status=I2CWriteByte(pTuner, 200,26,writearray[0]);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
/****************************************************************************\
|
|
* Main program
|
|
*
|
|
*
|
|
*
|
|
\****************************************************************************/
|
|
/*
|
|
int main()
|
|
{
|
|
Gainmanual();
|
|
PLL(Ref_clk, Freq);
|
|
LNAfilter(Freq);
|
|
IFfilter(bandwidth, Ref_clk);
|
|
freqband(Freq);
|
|
DCoffLUT();
|
|
GainControlauto();
|
|
return(0);
|
|
}
|
|
*/
|
|
|
|
// Elonics source code - RT2832_SW_optimisation_rev2.c
|
|
|
|
|
|
|
|
/****************************************************************************\
|
|
* Function: E4000_sensitivity
|
|
*
|
|
* Detailed Description:
|
|
* The function configures the E4000 for sensitivity mode.
|
|
*
|
|
\****************************************************************************/
|
|
|
|
int E4000_sensitivity(void *pTuner, int Freq, int bandwidth)
|
|
{
|
|
unsigned char writearray[2];
|
|
int status;
|
|
int IF_BW;
|
|
|
|
writearray[1]=0x00;
|
|
|
|
if(Freq<=700000)
|
|
{
|
|
writearray[0] = 0x07;
|
|
}
|
|
else
|
|
{
|
|
writearray[0] = 0x05;
|
|
}
|
|
status = I2CWriteArray(pTuner,200,36,1,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
IF_BW = bandwidth / 2;
|
|
if(IF_BW<=2500)
|
|
{
|
|
writearray[0]=0xfc;
|
|
writearray[1]=0x17;
|
|
}
|
|
else if(IF_BW<=3000)
|
|
{
|
|
writearray[0]=0xfb;
|
|
writearray[1]=0x0f;
|
|
}
|
|
else if(IF_BW<=3500)
|
|
{
|
|
writearray[0]=0xf9;
|
|
writearray[1]=0x0b;
|
|
}
|
|
else if(IF_BW<=4000)
|
|
{
|
|
writearray[0]=0xf8;
|
|
writearray[1]=0x07;
|
|
}
|
|
status = I2CWriteArray(pTuner,200,17,2,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
/****************************************************************************\
|
|
* Function: E4000_linearity
|
|
*
|
|
* Detailed Description:
|
|
* The function configures the E4000 for linearity mode.
|
|
*
|
|
\****************************************************************************/
|
|
int E4000_linearity(void *pTuner, int Freq, int bandwidth)
|
|
{
|
|
|
|
unsigned char writearray[2];
|
|
int status;
|
|
int IF_BW;
|
|
|
|
writearray[1]=0x00;
|
|
|
|
if(Freq<=700000)
|
|
{
|
|
writearray[0] = 0x03;
|
|
}
|
|
else
|
|
{
|
|
writearray[0] = 0x01;
|
|
}
|
|
status = I2CWriteArray(pTuner,200,36,1,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
IF_BW = bandwidth / 2;
|
|
if(IF_BW<=2500)
|
|
{
|
|
writearray[0]=0xfe;
|
|
writearray[1]=0x19;
|
|
}
|
|
else if(IF_BW<=3000)
|
|
{
|
|
writearray[0]=0xfd;
|
|
writearray[1]=0x11;
|
|
}
|
|
else if(IF_BW<=3500)
|
|
{
|
|
writearray[0]=0xfb;
|
|
writearray[1]=0x0d;
|
|
}
|
|
else if(IF_BW<=4000)
|
|
{
|
|
writearray[0]=0xfa;
|
|
writearray[1]=0x0a;
|
|
}
|
|
status = I2CWriteArray(pTuner,200,17,2,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
/****************************************************************************\
|
|
* Function: E4000_nominal
|
|
*
|
|
* Detailed Description:
|
|
* The function configures the E4000 for nominal
|
|
*
|
|
\****************************************************************************/
|
|
int E4000_nominal(void *pTuner, int Freq, int bandwidth)
|
|
{
|
|
unsigned char writearray[2];
|
|
int status;
|
|
int IF_BW;
|
|
|
|
writearray[1]=0x00;
|
|
|
|
if(Freq<=700000)
|
|
{
|
|
writearray[0] = 0x03;
|
|
}
|
|
else
|
|
{
|
|
writearray[0] = 0x01;
|
|
}
|
|
status = I2CWriteArray(pTuner,200,36,1,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
IF_BW = bandwidth / 2;
|
|
if(IF_BW<=2500)
|
|
{
|
|
writearray[0]=0xfc;
|
|
writearray[1]=0x17;
|
|
}
|
|
else if(IF_BW<=3000)
|
|
{
|
|
writearray[0]=0xfb;
|
|
writearray[1]=0x0f;
|
|
}
|
|
else if(IF_BW<=3500)
|
|
{
|
|
writearray[0]=0xf9;
|
|
writearray[1]=0x0b;
|
|
}
|
|
else if(IF_BW<=4000)
|
|
{
|
|
writearray[0]=0xf8;
|
|
writearray[1]=0x07;
|
|
}
|
|
status = I2CWriteArray(pTuner,200,17,2,writearray);
|
|
if(status != E4000_I2C_SUCCESS)
|
|
{
|
|
return E4000_1_FAIL;
|
|
}
|
|
|
|
return E4000_1_SUCCESS;
|
|
}
|
|
|