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change proto to text strings; add simplest NTC measurement

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This commit is contained in:
Edward Emelianov
2026-05-06 23:30:36 +03:00
parent 0b7ecba54b
commit 4614183f38
16 changed files with 878 additions and 621 deletions
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20
F3:F303/MLX90640-allsky/hardware.c
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@@ -51,16 +51,19 @@ TRUE_INLINE void iwdg_setup(){
TRUE_INLINE void gpio_setup(){
RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN; // for USART and LEDs
for(int i = 0; i < 10000; ++i) nop();
// USB - alternate function 14 @ pins PA11/PA12; SWD - AF0 @PA13/14; USB pullup - PA15
// PA6 - PWM for external heater (TIM3_CH1 or TIM16_CH1); PA7 - PWM propto (humidity - 50%)
// USB - alternate function 14 @ pins PA11/PA12; SWD - AF0 @PA13/14
// PA6,PA7 - PWM for external heaters (TIM3_CH1, TIM3_CH2)
// PA0..PA4 - NTC in, PA5 - DAC_OUT1 (board heater), PA6 - ADC in for DAC out
// USART pins will be setup in usart.c
GPIOA->AFR[0] = AFRf(2, 6) | AFRf(2, 7);
GPIOA->AFR[1] = AFRf(14, 11) | AFRf(14, 12);
GPIOA->MODER = MODER_AI(0) | MODER_AI(1) | MODER_AI(4) | MODER_AI(5) | MODER_AF(6) |
MODER_AF(7) | MODER_AF(11) | MODER_AF(12) | MODER_AF(13) | MODER_AF(14) | MODER_O(15);
// PB0 - PWM propto Text (<=20 - 0%, >=30 - 100%), PB1 - PWM propto (Text-Tsky) (<=-5 - 0%, >=+35 - 100%) PB2 - SPI_CS
// force USB DP to low level for a while
GPIOA->MODER = MODER_AI(0) | MODER_AI(1) | MODER_AI(2) | MODER_AI(3) | MODER_AI(4) | MODER_AI(5) | MODER_AF(6) |
MODER_AF(7) | MODER_AF(11) | MODER_O(12) | MODER_AF(13) | MODER_AF(14) | MODER_O(15);
// PB0 - PWM propto Text (<=20 - 0%, >=30 - 100%), PB1 - PWM propto (Text-Tsky) (<=-5 - 0%, >=+35 - 100%) PB9 - SPI_CS
// SPI and I2C will be setup in spi.c and i2c.c
GPIOB->AFR[0] = AFRf(2, 0) | AFRf(2, 1);
GPIOB->MODER = MODER_AF(0) | MODER_AF(1) | MODER_O(2);
pin_set(GPIOB, 1<<1);
GPIOB->MODER = MODER_AF(0) | MODER_AF(1) | MODER_O(9);
SPI_CS_1();
}
@@ -85,7 +88,7 @@ TRUE_INLINE void pwm_setup(){
// change PWM value in percents; return 0 if `val` is bad or `ch` not 0..3
int setPWM(uint8_t ch, uint8_t val){
if(ch > 3 || val > PWM_CCR_MAX) return 0;
if(ch >= PWM_CH_MAX || val > PWM_CCR_MAX) return 0;
volatile uint32_t *CCRs = &(TIM3->CCR1);
CCRs[ch] = val;
return 1;
@@ -139,7 +142,6 @@ void bme_process(){
// set PWM duty propto humidity
float h = (Humidity - 50.f) * 2.f;
if(h < 0.f) h = 0.f; else if(h > 100.f) h = 100.f;
setPWM(PWM_CH_HUMIDITY, (uint8_t)h);
environment.Tmeas = Tms;
// set PWM duty propto external T
float t = (Temperature + 20.f) * 2.f;