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OK; next stage: a pair of NTC, BME280, sensors' power management

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This commit is contained in:
Edward Emelianov
2025-09-29 22:12:31 +03:00
parent b082f4ea46
commit 83b9fd552b
15 changed files with 198 additions and 159 deletions
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19
F3:F303/MLX90640-allsky/i2c.c
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@@ -20,8 +20,6 @@
#include <string.h>
#include "i2c.h"
#include "strfunc.h" // hexdump
#include "usb_dev.h"
i2c_speed_t i2c_curspeed = I2C_SPEED_AMOUNT;
extern volatile uint32_t Tms;
@@ -45,7 +43,8 @@ static uint8_t dmaaddr = 0; // address to continuous read by DMA
static inline int isI2Cbusy(){
cntr = Tms;
do{
if(Tms - cntr > I2C_TIMEOUT){ USND("Timeout, DMA transfer in progress?"); return 1;}
IWDG->KR = IWDG_REFRESH;
if(Tms - cntr > I2C_TIMEOUT) return 1;
}while(I2Cbusy);
return 0;
}
@@ -90,7 +89,6 @@ void i2c_setup(i2c_speed_t speed){
SCLL = 0x2;
break;
default:
USND("Wrong I2C speed!");
return; // wrong speed
}
RCC->AHBENR |= RCC_AHBENR_GPIOBEN;
@@ -318,21 +316,8 @@ int i2c_scan_next_addr(uint8_t *addr){
return 1;
}
// dump I2Cbuf
void i2c_bufdudump(){
if(goterr){
USND("DMARDERR");
goterr = 0;
}
if(i2cbuflen < 1) return;
USND("DMARD=");
hexdump16(USB_sendstr, (uint16_t*)I2Cbuf, i2cbuflen);
}
// get DMA buffer with conversion to little-endian (if transfer was for 16-bit)
uint16_t *i2c_dma_getbuf(uint16_t *len){
//if(i2c_got_DMA) USND("DMA GOT!");
//U("T="); U(u2str(Tms)); U("; cndtr: "); USND(u2str(DMA1_Channel7->CNDTR));
if(!i2c_got_DMA || i2cbuflen < 1) return NULL;
i2c_got_DMA = 0;
i2cbuflen >>= 1; // for hexdump16 - now buffer have uint16_t!