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src/ad9915.c
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libad9915 : add i...
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/*
SPI : initialisation du dds et communication SPI
*/
#include"ad9915.h"
#include "spi.h"
#include "ddsFreq.h"
#define debug
//fonction reset
void Send_Reset(int f_dds)
{
char reset='2';
write(f_dds,&reset,sizeof(reset)); //reset
sleep(0.1);
}
//fonction ioupdate
void Send_IO_Update(int f_dds)
{
char update='1';
write(f_dds,&update,sizeof(update)); //reset
sleep(0.1);
}
//fonction write register
void write_register (int fd, unsigned char addr, unsigned char d3, unsigned char d2, unsigned char d1, unsigned char d0)
{
unsigned char tx[5]={0};
tx[0]=addr;
tx[1]=d3;
tx[2]=d2;
tx[3]=d1;
tx[4]=d0;
//spi_put_multiple envoie le vecteur dans cet ordre
//[tx0]-[tx1]-[tx2] -> adresse->bit poids Fort->bit poids faible
spi_put_multiple(fd,tx,5,NULL,0);
}
//initialisation du dds
void Initialize_DDS (int fd, int f_dds)
{
Send_Reset(f_dds);
write_register(fd,CFRAddress[0],CFR1Start[0], CFR1Start[1], CFR1Start[2], CFR1Start[3]);
Send_IO_Update (f_dds); //Send the update to set the control registers
write_register(fd,CFRAddress[1], CFR2Start[0], CFR2Start[1], CFR2Start[2], CFR2Start[3]);
Send_IO_Update (f_dds);
write_register(fd,CFRAddress[2], CFR3Start[0], CFR3Start[1], CFR3Start[2], CFR3Start[3]);
Send_IO_Update (f_dds);
write_register(fd,CFRAddress[3], CFR4Start[0], CFR4Start[1], CFR4Start[2], CFR4Start[3]);
Send_IO_Update (f_dds);
write_register(fd,USR0Address, 0xA2, 0x00, 0x08, 0x00);
Send_IO_Update (f_dds);
}
//calibration du dac
void Calibrate_DAC (int fd, int f_dds)
{
write_register(fd,CFRAddress[3], DACCalEnable[0], DACCalEnable[1], DACCalEnable[2], DACCalEnable[3]);
Send_IO_Update (f_dds);
write_register(fd,CFRAddress[3], CFR4Start[0], CFR4Start[1], CFR4Start[2], CFR4Start[3]);
Send_IO_Update (f_dds);
}
void modulus_setup(int fd, int f_dds)
{
write_register(fd,0x00,0x00, 0x01, 0x01, 0x08); //OSK enable
Send_IO_Update (f_dds);
write_register(fd,0x01,0x00, 0x89, 0x09, 0x00); //enable program modulus and digital ramp
Send_IO_Update (f_dds);
}
void basic_setup(int fd, int f_dds,uint16_t ampWord, uint16_t phaseWord)
{
write_register(fd,0x00,0x00, 0x01, 0x01, 0x08); //OSK enable
Send_IO_Update (f_dds);
write_register(fd,0x01,0x00, 0x89, 0x09, 0x00); //enable program modulus and digital ramp
Send_IO_Update (f_dds);
write_register(fd,0x04,0x19, 0x99, 0x99, 0x99); //ftw
Send_IO_Update (f_dds);
write_register(fd,0x05,0xC0, 0x00, 0x00, 0x00); //A
Send_IO_Update (f_dds);
write_register(fd,0x06,0x00, 0x00, 0x00, 0x05); //B
Send_IO_Update (f_dds);
//write_register(fd,0x0c, 0x0F, 0xFF, 0x00, 0x00); // amp (12b) ph(16)
write_register(fd,0x0c, (uint8_t)((ampWord>>8) & 0x0F), (uint8_t)(ampWord & 0xFF), (uint8_t)((phaseWord>>8) & 0xFF), (uint8_t)(phaseWord & 0xFF)); // amp (12b) ph(16)
Send_IO_Update (f_dds);
}
void setFreqMM(int fd, int f_dds, unsigned int ftw, unsigned int A, unsigned int B)
{
//uint16_t phaseWord = 0x7400;
//uint16_t ampWord = (uint16_t)strtol(argv[4],NULL,0) & 0x0FFF ; //masque en 2
//uint16_t ampWord = 0x00000FFF;
//uint32_t phaseAmpWord = phaseWord | ampWord<<16;
//write_register(fd,0x00,0x00, 0x01, 0x01, 0x08); //OSK enable
//Send_IO_Update(f_dds);
//write_register(fd,0x01,0x00, 0x89, 0x09, 0x00); //enable program modulus and digital ramp
//Send_IO_Update(f_dds);
write_register(fd,0x04,ftw>>24&0xFF, ftw>>16&0xFF, ftw>>8&0xFF, ftw&0xFF); //ftw
Send_IO_Update(f_dds);
write_register(fd,0x05,A>>24&0xFF,A>>16&0xFF, A>>8&0xFF, A&0xFF); //A
Send_IO_Update(f_dds);
write_register(fd,0x06,B>>24&0xFF,B>>16&0xFF, B>>8&0xFF, B&0xFF); //B
Send_IO_Update(f_dds);
// write_register(fd,0x0c, phaseAmpWord>>24&0xFF, phaseAmpWord>>16&0xFF,phaseAmpWord>>8&0xFF,phaseAmpWord&0xFF); // amp (12b) ph(16)
//Send_IO_Update(f_dds);
}
void setAmpPhaseWord(int fd, int f_dds,unsigned int phaseAmpWord)
{
write_register(fd,0x0c, phaseAmpWord>>24&0xFF, phaseAmpWord>>16&0xFF,phaseAmpWord>>8&0xFF,phaseAmpWord&0xFF); // amp (12b) ph(16)
Send_IO_Update(f_dds);
}
int openAndSetDdsFreq( char * device, char * gpio_update, double f_clk, double f_out, uint16_t ampWord, uint16_t phaseWord)
{
#ifdef debug
printf("device=%s\tgpio_update=%s\tf_clk=%e\tf_out=%e\tampWord=%d\tphaseWord=%d
",device,gpio_update,f_clk,f_out,ampWord,phaseWord);
#else
printf("device=%s\tgpio_update=%s\tf_clk=%e\tf_out=%e\tampWord=%d\tphaseWord=%d
",device,gpio_update,f_clk,f_out,ampWord,phaseWord);
int fd=configureSpi(device); //ex #define FILENAME2 "/dev/spidev0.0"
printf("fd(funct)=%d
",fd);
setMode(fd,SPI_MODE_0);
if (fd <= 0){
printf("ERREUR : ouverture périphérique SPI %s
",device);
return EXIT_FAILURE;
}
int f_dds=open(gpio_update,O_RDWR); //ex #define UPDATE2 "/sys/dds/gpio24/updateOn"
printf("f_dds(funct)=%d
",f_dds);
if (f_dds <= 0){
printf("ERREUR : ouverture ");printf(gpio_update);printf("
");
printf("Chargez le module ddsIOupdateX
");
return EXIT_FAILURE;
}
setddsFreq(fd,f_dds,f_out,f_clk);
//debug
phaseWord = 0x0000;
ampWord=0x0FFF;
uint32_t phaseAmpWord = phaseWord | ampWord<<16;
setAmpPhaseWord(fd, f_dds, phaseAmpWord);
#endif
return EXIT_SUCCESS;
}
int setDdsFreqFull ( int fd, int f_dds, double f_clk, double f_out, uint16_t ampWord, uint16_t phaseWord)
{
setddsFreq(fd,f_dds,f_out,f_clk);
#ifdef debug
phaseWord = 0x0000;
ampWord=0x0FFF;
#endif
uint32_t phaseAmpWord = phaseWord | ampWord<<16;
setAmpPhaseWord(fd, f_dds, phaseAmpWord);
return EXIT_SUCCESS;
}
int receiveParameterFromPythonServer(char * device, double f_clk, double f_out){
printf("receiveParameterFromPythonServer::device=%s\tf_clk=%e\tf_out=%e
",device,f_clk,f_out);
return 0;
}
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