87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
|
|
#include "dds.h"
|
|
|
|
void ddsPrefix()
|
|
{
|
|
// HAL_GPIO_WritePin(dds1Sck.port, dds1Sck.pin, 1);
|
|
// HAL_GPIO_WritePin(dds2Sck.port, dds2Sck.pin, 1);
|
|
// //delay
|
|
// HAL_GPIO_WritePin(dds1Nss.port, dds1Nss.pin, 0);
|
|
// HAL_GPIO_WritePin(dds2Nss.port, dds2Nss.pin, 0);
|
|
// //Delay
|
|
}
|
|
|
|
void sendToDds(uint16_t data1, uint16_t data2)
|
|
{
|
|
// int i;
|
|
// for(i = 0; i < 16; i++)
|
|
// {
|
|
// HAL_GPIO_WritePin(dds1Mosi.port, dds1Mosi.pin, (data1 >> (15-i)) & 1);
|
|
// HAL_GPIO_WritePin(dds2Mosi.port, dds2Mosi.pin, (data2 >> (15-i)) & 1);
|
|
// //delay
|
|
// HAL_GPIO_WritePin(dds1Sck.port, dds1Sck.pin, 0);
|
|
// HAL_GPIO_WritePin(dds2Sck.port, dds2Sck.pin, 0);
|
|
// //delay
|
|
// HAL_GPIO_WritePin(dds1Sck.port, dds1Sck.pin, 1); //The 16th shift of this line is when execution occurs
|
|
// HAL_GPIO_WritePin(dds2Sck.port, dds2Sck.pin, 1); //NOT on the release of NSS!!!! GAH!
|
|
// }
|
|
}
|
|
|
|
void ddsSuffix()
|
|
{
|
|
// HAL_GPIO_WritePin(dds1Nss.port, dds1Nss.pin, 1);
|
|
// HAL_GPIO_WritePin(dds2Nss.port, dds2Nss.pin, 1);
|
|
// //HAL_GPio
|
|
}
|
|
|
|
long long freqToReg(long long frequency)
|
|
{
|
|
//frequency = 6000000;
|
|
long long freqIn = 75000000;
|
|
long long bits28 = 268435456;
|
|
long long intStep = frequency * bits28;
|
|
return intStep / freqIn;
|
|
}
|
|
|
|
|
|
//void setFreq(long frequency)
|
|
//{
|
|
// long long freg = freqToReg(frequency);
|
|
//
|
|
//
|
|
// //HAL_GPIO_WritePin(ddsReset.port, ddsReset.pin, 1);
|
|
// ddsPrefix();
|
|
// //sendToDds(0x2100, 0x2100);
|
|
// //sendToDds(0x0010001100000000 , 0x0010001100000000);
|
|
// sendToDds(0b0010001000000000 , 0b0010001000000000);
|
|
// ddsSuffix();
|
|
//
|
|
// //HAL_GPIO_WritePin(ddsReset.port, ddsReset.pin, 0);
|
|
// //HAL_GPIO_WritePin(ddsReset.port, ddsReset.pin, 1);
|
|
// //sendToDds(0x50c7);
|
|
// //sendToDds(0x4000);
|
|
// ddsPrefix();
|
|
// sendToDds(((freg & 0b0011111111111111) | 0b0100000000000000),
|
|
// ((freg & 0b0011111111111111) | 0b0100000000000000));
|
|
// ddsSuffix();
|
|
// ddsPrefix();
|
|
// sendToDds(((freg >> 14 & 0b0011111111111111) | 0b0100000000000000),
|
|
// (((freg >> 14) & 0b0011111111111111) | 0b0100000000000000));
|
|
// ddsSuffix();
|
|
// ddsPrefix();
|
|
// //sendToDds(0xc000, 0xc000);
|
|
// sendToDds(0xc000, 0xc000 | 3072);
|
|
// ddsSuffix();
|
|
// // ddsPrefix();
|
|
// // sendToDds(0b1100000000000000);
|
|
// // ddsSuffix();
|
|
//
|
|
//
|
|
//
|
|
// // ddsPrefix();
|
|
// // sendToDds(0x2000, 0x2000);
|
|
// // ddsSuffix();
|
|
//
|
|
//// HAL_GPIO_WritePin(ddsReset.port, ddsReset.pin, 0);
|
|
//}
|