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pre-alpha MLX

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This commit is contained in:
Edward Emelianov
2022-05-10 19:09:06 +03:00
parent 1489b029ff
commit 247d1b2ed5
8 changed files with 145 additions and 11 deletions
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32
F1:F103/MLX90640/mlx90640.c
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@@ -20,6 +20,9 @@
#include "mlx90640.h"
#include "strfunct.h"
static uint8_t dataarray[1536];
static int portionlen = 0;
// read register value
int read_reg(uint16_t reg, uint16_t *val){
uint8_t _2bytes[2];
@@ -63,3 +66,32 @@ int write_reg(uint16_t reg, uint16_t val){
if(I2C_OK != i2c_7bit_send(_4bytes, 4, 1)) return 0;
return 1;
}
int read_data_dma(uint16_t reg, int N){
if(N < 1) return 0;
uint8_t _2bytes[2];
_2bytes[0] = reg >> 8; // big endian!
_2bytes[1] = reg & 0xff;
portionlen = N;
if(I2C_OK != i2c_7bit_send(_2bytes, 2, 0)){
DBG("DMA: can't send address");
return 0;
}
if(I2C_OK != i2c_7bit_receive_DMA(dataarray, N*2)) return 0;
return 1;
}
void mlx90640_process(){
if(i2cDMAr == I2C_DMA_READY){
i2cDMAr = I2C_DMA_RELAX;
uint8_t *ptr = dataarray;
for(uint16_t i = 0; i < portionlen; ++i, ptr += 2){
printu(i);
addtobuf(" ");
uint16_t d = (ptr[0] << 8) | ptr[1];
printuhex(d);
newline();
}
sendbuf();
}
}