j3d1/fiatlux
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j3d1 2022-05-29 23:47:30 +02:00
parent cb1fd6e485
commit c31bff2b33
1 changed files with 15 additions and 1 deletions
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16
firmware/lux.cpp
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@ -20,6 +20,12 @@ extern "C" void signal_led(bool state) {
gpio_write(signal_led_pin, !state);
}
void int_to_hex(uint8_t i, char buf[2]) {
uint8_t hex_charset[] = "0123456789ABCDEF";
buf[0] = hex_charset[i >> 4];
buf[1] = hex_charset[i & 0x0F];
}
extern "C" void lux_task(void *pvParameters) {
gpio_enable(signal_led_pin, GPIO_OUTPUT);
@ -33,13 +39,21 @@ extern "C" void lux_task(void *pvParameters) {
uint8_t cnt = 0;
while(1) {
uint8_t buf[2];
spi_transfer_8(1, charset[cnt++]);
for(volatile int i = 0; i < 100; i++);
spi_transfer_8(1, 0x00);
spi_read(1, 0x00, buf, 2, 1);
char hex[5];
int_to_hex(buf[0], hex);
int_to_hex(buf[1], hex + 2);
hex[4] = '\0';
printf("lux_task output: %s\n", hex);
vTaskDelay(1000/portTICK_PERIOD_MS);
cnt %= sizeof(charset);
}
vTaskDelete(nullptr);
}