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fixed some bugs

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This commit is contained in:
Edward Emelianov
2026-06-01 09:34:53 +03:00
parent 9096866812
commit 1f79a43326
12 changed files with 61 additions and 35 deletions
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11
F3:F303/MLX90640-allsky/Readme.md
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@@ -7,7 +7,9 @@ thermal imaging sensors (32×24 pixels each), designed for **cloud monitoring**
Astrophysical Observatory of the Russian Academy of Sciences. The system automates sky quality
assessment for 0.5-meter telescopes of the "Astro-M" complex.
The device continuously captures thermal images from multiple sensors (Zenith, East, South, West, North), processes environmental data from a **BMP280** pressure/humidity/temperature sensor, and controls **PWM heaters** to prevent dew formation on optics.
The device continuously captures thermal images from multiple sensors (Zenith, East, South, West,
North), processes environmental data from a **BMP280** pressure/humidity/temperature sensor, and
controls **PWM heaters** to prevent dew formation on optics.
**Repository:** [https://github.com/eddyem/stm32samples/tree/master/F3%3AF303/MLX90640-allsky](https://github.com/eddyem/stm32samples/tree/master/F3%3AF303/MLX90640-allsky)
@@ -160,7 +162,8 @@ Measurements are triggered every `ENV_MEAS_PERIOD` (10 seconds) in forced mode.
## Command Protocol
The device presents a **virtual COM port** (CDC) over USB and a second UART interface. Both share the same command set.
The device presents a **virtual COM port** (CDC) over USB and a second UART interface. Both share
the same command set.
### Command Syntax
```
@@ -290,7 +293,9 @@ T_MEASUREMENT=12345678
### Prerequisites
- ARM GCC toolchain (`arm-none-eabi-gcc`)
- Make
- [st-flash](https://github.com/texane/stlink), [stm32flash](https://sourceforge.net/projects/stm32flash/) or [OpenOCD](https://openocd.sourceforge.io) (for flashing MCU)
- [st-flash](https://github.com/texane/stlink),
[stm32flash](https://sourceforge.net/projects/stm32flash/) or
[OpenOCD](https://openocd.sourceforge.io) (for flashing MCU)
### Build
```bash

19
F3:F303/MLX90640-allsky/adc.c
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@@ -46,19 +46,20 @@ TRUE_INLINE void calADC(ADC_TypeDef *chnl){
chnl->CR = ADC_CR_ADVREGEN_0;
// wait for 10us
uint16_t ctr = 0;
while(++ctr < 1000){nop();}
while(++ctr < 1000){IWDG->KR = IWDG_REFRESH;}
// ADCALDIF=0 (single channels)
if((chnl->CR & ADC_CR_ADEN)){
chnl->CR |= ADC_CR_ADSTP;
chnl->CR |= ADC_CR_ADDIS;
}
chnl->CR |= ADC_CR_ADCAL;
while((chnl->CR & ADC_CR_ADCAL) != 0 && ++ctr < 0xfff0){};
while((chnl->CR & ADC_CR_ADCAL) != 0 && ++ctr < 0xfff0){IWDG->KR = IWDG_REFRESH;};
chnl->CR = ADC_CR_ADVREGEN_0;
// enable ADC
ctr = 0;
do{
chnl->CR |= ADC_CR_ADEN;
IWDG->KR = IWDG_REFRESH;
}while((chnl->ISR & ADC_ISR_ADRDY) == 0 && ++ctr < 0xfff0);
}
@@ -80,14 +81,16 @@ void adc_setup(){
ADC12_COMMON->CCR = ADC_CCR_TSEN | ADC_CCR_VREFEN | ADC_CCR_CKMODE; // enable Tsens and Vref, HCLK/4
calADC(ADC1);
calADC(ADC2);
// ADC1: channels 1,2,3,4,16,18
ADC1->SMPR1 = ADC_SMPR1_SMP0 | ADC_SMPR1_SMP1 | ADC_SMPR1_SMP2 | ADC_SMPR1_SMP3;
ADC1->SMPR2 = ADC_SMPR2_SMP15 | ADC_SMPR2_SMP17;
// ADC1: channels 1,2,3,4,16,18; 601.5 clock cycles
//ADC1->SMPR1 = ADC_SMPR1_SMP0 | ADC_SMPR1_SMP1 | ADC_SMPR1_SMP2 | ADC_SMPR1_SMP3;
ADC1->SMPR1 = ADC_SMPR1_SMP1 | ADC_SMPR1_SMP2 | ADC_SMPR1_SMP3 | ADC_SMPR1_SMP4;
//ADC1->SMPR2 = ADC_SMPR2_SMP15 | ADC_SMPR2_SMP17;
ADC1->SMPR2 = ADC_SMPR2_SMP16 | ADC_SMPR2_SMP18;
// 6 conversions in group: 1->2->3->4->16->18
ADC1->SQR1 = (1<<6) | (2<<12) | (3<<18) | (4<<24) | (NUMBER_OF_ADC1_CHANNELS-1);
ADC1->SQR2 = (16<<0) | (18<<6);
// ADC2: channel 2
ADC2->SMPR1 = ADC_SMPR1_SMP1;
ADC2->SMPR1 = ADC_SMPR1_SMP2;
ADC2->SQR1 = (2<<6) | (NUMBER_OF_ADC2_CHANNELS-1);
// configure DMA for ADC
RCC->AHBENR |= RCC_AHBENR_DMA1EN | RCC_AHBENR_DMA2EN;
@@ -122,12 +125,12 @@ void adc_setup(){
*/
uint16_t getADCval(uint8_t nch){
if(nch >= NUMBER_OF_ADC_CHANNELS) return 0;
register uint16_t temp;
uint16_t temp;
#define PIX_SORT(a,b) { if ((a)>(b)) PIX_SWAP((a),(b)); }
#define PIX_SWAP(a,b) { temp=(a);(a)=(b);(b)=temp; }
uint16_t p[9];
int adval = (nch >= NUMBER_OF_ADC1_CHANNELS) ? NUMBER_OF_ADC2_CHANNELS : NUMBER_OF_ADC1_CHANNELS;
int addr = (nch >= NUMBER_OF_ADC1_CHANNELS) ? nch - NUMBER_OF_ADC2_CHANNELS + ADC2START: nch;
int addr = (nch >= NUMBER_OF_ADC1_CHANNELS) ? nch - NUMBER_OF_ADC1_CHANNELS + ADC2START: nch;
for(int i = 0; i < 9; ++i, addr += adval) // 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]) ;

BIN
F3:F303/MLX90640-allsky/allsky.bin
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Binary file not shown.

14
F3:F303/MLX90640-allsky/commproto.cpp
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@@ -595,9 +595,8 @@ static constexpr uint32_t hash(const char* str, uint32_t h = 0) {
return *str ? hash(str + 1, h + ((h << 7) ^ *str)) : h;
}
const char *parse_cmd(int (*sendfun)(const char*), char *buf) {
if(!buf || !*buf || !sendfun) return NULL;
// set temporary sender
void set_sender(sendfun_t sendfun){
SEND = sendfun;
if(sendfun == usb_sender){
putb = usb_putb;
@@ -606,6 +605,15 @@ const char *parse_cmd(int (*sendfun)(const char*), char *buf) {
putb = usart_putb;
sendbin = usart_sendbin;
}
}
sendfun_t get_sender(){
return SEND;
}
const char *parse_cmd(sendfun_t sendfun, char *buf) {
if(!buf || !*buf || !sendfun) return NULL;
set_sender(sendfun);
char command[CMD_MAXLEN+1];
int i = 0;
while(*buf > '@' && i < CMD_MAXLEN) command[i++] = *buf++;

6
F3:F303/MLX90640-allsky/commproto.h
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@@ -49,10 +49,14 @@ typedef enum{
// maximal available parameter number (for 16-bit registers is 0xffff
#define MAXPARNO 0xffff
typedef int (*sendfun_t)(const char*);
extern const char *EQ;
const char *parse_cmd(int (*sendfun)(const char*), char *buf);
const char *parse_cmd(sendfun_t sendfun, char *buf);
void set_senders(int (*usbs)(const char*), int (*usbb)(uint8_t), int (*usbbin)(const uint8_t*, int),
int (*usarts)(const char*), int (*usartb)(uint8_t), int (*usartbin)(const uint8_t*, int));
void set_sender(sendfun_t sendfun);
sendfun_t get_sender();
extern const char *const Timage;

4
F3:F303/MLX90640-allsky/i2c.c
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@@ -116,6 +116,8 @@ void i2c_setup(i2c_speed_t speed){
RCC->AHBENR |= RCC_AHBENR_DMA1EN;
NVIC_EnableIRQ(DMA1_Channel6_IRQn);
NVIC_EnableIRQ(DMA1_Channel7_IRQn);
NVIC_SetPriority(DMA1_Channel6_IRQn, 3);
NVIC_SetPriority(DMA1_Channel7_IRQn, 3);
I2Cbusy = 0;
i2c_curspeed = speed;
}
@@ -153,7 +155,7 @@ static uint8_t waitISRbit(uint32_t bit, uint8_t isset){
}
return 1;
goterr:
I2C1->ICR = 0xff;
I2C1->ICR = 0x3f38; // clear all errors
return 0;
}

2
F3:F303/MLX90640-allsky/ir-allsky.creator.user
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@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE QtCreatorProject>
<!-- Written by QtCreator 19.0.2, 2026-05-29T11:48:44. -->
<!-- Written by QtCreator 19.0.2, 2026-06-01T09:34:42. -->
<qtcreator>
<data>
<variable>EnvironmentId</variable>

7
F3:F303/MLX90640-allsky/main.c
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@@ -83,16 +83,19 @@ int main(void){
usart_sendstr(foundid); usart_sendstr(straddr); usart_putbyte('\n');
}
}
IWDG->KR = IWDG_REFRESH;
mlx_process();
if(cartoon) for(int i = 0; i < N_SENSORS; ++i){ // USB-only
if(cartoon && CDCready) for(int i = 0; i < N_SENSORS; ++i){ // USB-only
uint32_t Tnow = mlx_lastimT(i);
if(Tnow != Tlastima[i]){
fp_t *im = mlx_getimage(i);
if(im){
//U(Sensno); UN(i2str(i));
sendfun_t cursender = get_sender();
set_sender(USB_sendstr);
U(Timage); USB_putbyte('0'+i); USB_putbyte('='); UN(u2str(Tnow));
drawIma(im);
Tlastima[i] = Tnow;
set_sender(cursender);
}
}
}

4
F3:F303/MLX90640-allsky/mlx90640.c
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@@ -43,7 +43,7 @@ static void occacc(int8_t *arr, int l, const uint16_t *regstart){
int n = l >> 2; // divide by 4
int8_t *p = arr;
for(int i = 0; i < n; ++i){
register uint16_t val = *regstart++;
uint16_t val = *regstart++;
*p++ = (val & 0x000F) >> 0;
*p++ = (val & 0x00F0) >> 4;
*p++ = (val & 0x0F00) >> 8;
@@ -123,7 +123,7 @@ MLX90640_params *get_parameters(const uint16_t dataarray[MLX_DMA_MAXLEN]){
int idx = (row&1)<<1;
for(int col = 0; col < MLX_W; ++col){
// offset
register uint16_t rv = *pu16++;
uint16_t rv = *pu16++;
i16 = (rv & 0xFC00) >> 10;
if(i16 > 0x1F) i16 -= 0x40;
*offset++ = (fp_t)offavg + (fp_t)occRow[row]*occRowScale + (fp_t)occColumn[col]*occColumnScale + (fp_t)i16*occRemScale;

12
F3:F303/MLX90640-allsky/strfunc.c
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@@ -23,7 +23,7 @@
// hex line number for hexdumps
void u16s(uint16_t n, char *buf){
for(int j = 3; j > -1; --j){
register uint8_t q = n & 0xf;
uint8_t q = n & 0xf;
n >>= 4;
if(q < 10) buf[j] = q + '0';
else buf[j] = q - 10 + 'a';
@@ -40,7 +40,7 @@ void hexdump(int (*sendfun)(const char *s), uint8_t *arr, uint16_t len){
char buf[64] = "0000 ", *bptr = &buf[6];
for(uint16_t l = 0; l < len; ++l, ++arr){
for(int16_t j = 1; j > -1; --j){
register uint8_t half = (*arr >> (4*j)) & 0x0f;
uint8_t half = (*arr >> (4*j)) & 0x0f;
if(half < 10) *bptr++ = half + '0';
else *bptr++ = half - 10 + 'a';
}
@@ -66,7 +66,7 @@ void hexdump16(int (*sendfun)(const char *s), uint16_t *arr, uint16_t len){
//uint16_t val = *arr;
u16s(*arr, bptr);
/*for(int16_t j = 3; j > -1; --j){
register uint8_t q = val & 0xf;
uint8_t q = val & 0xf;
val >>= 4;
if(q < 10) bptr[j] = q + '0';
else bptr[j] = q - 10 + 'a';
@@ -341,7 +341,7 @@ char *float2str(float x, uint8_t prec){
uint8_t m = 0;
if(pow < 0){pow = -pow; m = 1;}
while(pow){
register int p10 = pow/10;
int p10 = pow/10;
*s-- = '0' + (pow - 10*p10);
pow = p10;
}
@@ -355,7 +355,7 @@ char *float2str(float x, uint8_t prec){
uint32_t decimals = (uint32_t)((x-units+rounds[prec])*pwr10[prec]);
// print decimals
while(prec){
register int d10 = decimals / 10;
int d10 = decimals / 10;
*s-- = '0' + (decimals - 10*d10);
decimals = d10;
--prec;
@@ -368,7 +368,7 @@ char *float2str(float x, uint8_t prec){
// print main units
if(units == 0) *s-- = '0';
else while(units){
register uint32_t u10 = units / 10;
uint32_t u10 = units / 10;
*s-- = '0' + (units - 10*u10);
units = u10;
}

7
F3:F303/MLX90640-allsky/usart.c
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@@ -149,8 +149,9 @@ int usart_setup(uint32_t speed){
NVIC_EnableIRQ(USART1_IRQn);
NVIC_EnableIRQ(DMA1_Channel4_IRQn);
NVIC_EnableIRQ(DMA1_Channel5_IRQn);
NVIC_SetPriority(DMA1_Channel5_IRQn, 0);
NVIC_SetPriority(USART1_IRQn, 4); // set character match priority lower
NVIC_SetPriority(DMA1_Channel4_IRQn, 4);
NVIC_SetPriority(DMA1_Channel5_IRQn, 4);
NVIC_SetPriority(USART1_IRQn, 5); // set character match priority lower
return TRUE;
}
@@ -162,7 +163,7 @@ void usart_stop(){
void usart1_exti25_isr(){
DMA1_Channel5->CCR &= ~DMA_CCR_EN; // temporaly disable DMA
USART1->ICR = USART_ICR_CMCF; // clear character match flag
register int l = UARTBUFSZI - DMA1_Channel5->CNDTR - 1; // substitute '\n' with '\0', omit empty strings!
int l = UARTBUFSZI - DMA1_Channel5->CNDTR - 1; // substitute '\n' with '\0', omit empty strings!
if(l > 0){
if(recvdatalen){ // user didn't read old data - mark as buffer overflow
bufovr = 1;

4
F3:F303/MLX90640-allsky/version.inc
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@@ -1,2 +1,2 @@
#define BUILD_NUMBER "67"
#define BUILD_DATE "2026-05-29"
#define BUILD_NUMBER "68"
#define BUILD_DATE "2026-06-01"