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FX3U: test CAN bus communications

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This commit is contained in:
Edward Emelianov
2024-06-01 22:23:11 +03:00
parent 166ab97fe7
commit f127a3ce1a
18 changed files with 853 additions and 189 deletions
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12
F1:F103/FX3U/adc.c
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@@ -18,7 +18,7 @@
#include "adc.h"
uint16_t ADC_array[NUMBER_OF_ADC_CHANNELS*9];
uint16_t ADC_array[ADC_CHANNELS*9];
void adc_setup(){
uint32_t ctr = 0;
@@ -29,7 +29,7 @@ void adc_setup(){
// DMA configuration
DMA1_Channel1->CPAR = (uint32_t) (&(ADC1->DR));
DMA1_Channel1->CMAR = (uint32_t)(ADC_array);
DMA1_Channel1->CNDTR = NUMBER_OF_ADC_CHANNELS * 9;
DMA1_Channel1->CNDTR = ADC_CHANNELS * 9;
DMA1_Channel1->CCR = DMA_CCR_MINC | DMA_CCR_MSIZE_0 | DMA_CCR_PSIZE_0
| DMA_CCR_CIRC | DMA_CCR_PL | DMA_CCR_EN;
RCC->CFGR = (RCC->CFGR & ~(RCC_CFGR_ADCPRE)) | RCC_CFGR_ADCPRE_DIV8; // ADC clock = RCC / 8
@@ -38,7 +38,7 @@ void adc_setup(){
ADC1->SMPR1 = ADC_SMPR1_SMP16 | ADC_SMPR1_SMP17;
// sequence order: 0 -> 16 -> 17
ADC1->SQR3 = (0 << 0) | (16<<5) | (17 << 10);
ADC1->SQR1 = (NUMBER_OF_ADC_CHANNELS - 1) << 20; // amount of conversions
ADC1->SQR1 = (ADC_CHANNELS - 1) << 20; // amount of conversions
ADC1->CR1 = ADC_CR1_SCAN; // scan mode
// DMA, continuous mode; enable vref & Tsens; enable SWSTART as trigger
ADC1->CR2 = ADC_CR2_DMA | ADC_CR2_TSVREFE | ADC_CR2_CONT | ADC_CR2_EXTSEL | ADC_CR2_EXTTRIG;
@@ -68,7 +68,7 @@ uint16_t getADCval(int nch){
#define PIX_SORT(a,b) { if ((a)>(b)) PIX_SWAP((a),(b)); }
#define PIX_SWAP(a,b) { register uint16_t temp=(a);(a)=(b);(b)=temp; }
uint16_t p[9];
for(i = 0; i < 9; ++i, addr += NUMBER_OF_ADC_CHANNELS){ // first we should prepare array for optmed
for(i = 0; i < 9; ++i, addr += ADC_CHANNELS){ // first we should prepare array for optmed
p[i] = ADC_array[addr];
}
PIX_SORT(p[1], p[2]) ; PIX_SORT(p[4], p[5]) ; PIX_SORT(p[7], p[8]) ;
@@ -95,7 +95,7 @@ uint32_t getADCvoltage(int nch){
int32_t getMCUtemp(){
// Temp = (V25 - Vsense)/Avg_Slope + 25
// V_25 = 1.45V, Slope = 4.3e-3
int32_t Vsense = getVdd() * getADCval(CHTSENS);
int32_t Vsense = getVdd() * getADCval(ADC_CH_TSEN);
int32_t temperature = 593920 - Vsense; // 593920 == 145*4096
temperature /= 172; // == /(4096*10*4.3e-3), 10 - to convert from *100 to *10
temperature += 250;
@@ -105,6 +105,6 @@ int32_t getMCUtemp(){
// return Vdd * 100 (V)
uint32_t getVdd(){
uint32_t vdd = 120 * 4096; // 1.2V
vdd /= getADCval(CHVDD);
vdd /= getADCval(ADC_CH_VDD);
return vdd;
}