1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
| #define cs 25
int main()
{
unsigned char spi_config[] = {0x80, 0xA2}; //reg config
unsigned char spi_msb = 0x01, spi_lsb = 0x02;
wiringPiSetup();
wiringPiSPISetup(1, 500000); // Initialisation du bus SPI(0) à 500KHz
pinMode(cs, OUTPUT);
digitalWrite(cs, HIGH);
usleep(10000);
digitalWrite(cs, LOW); //selection du module
//
wiringPiSPIDataRW(1, spi_config, 2);
digitalWrite(cs, HIGH);
//lecture du résultat de la conversion
digitalWrite(cs, LOW); //selection du module
wiringPiSPIDataRW(1, &spi_msb, 1);
wiringPiSPIDataRW(1, &spi_lsb, 1);
digitalWrite(cs, HIGH);
printf("Ox%x Ox%x\n", spi_msb, spi_lsb);
exit(EXIT_SUCCESS);
} |
Partager