Reading bad data from LIS2MDL using 3-wire SPI Sensor: LI2MDLMCU: STML072I am trying to read the who_am_I register (register 0xAF) with the 3-wire SPI setup, but it is returning the wrong data.Below is a screenshot of the transmission and the return from the LIS2MDL. The transmission's first bit is SET to indicate that it is a READ operation. The return data should be 0x40, however, the first byte is 0x00, and then comes a second byte of data. Here's the code to read the data:nBytesToRead == 1 uint8_t Sensor_IO_Read( void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead )
{
//NSS = 0;
HW_GPIO_Write( MAGNETOMETER_NSS_PORT, MAGNETOMETER_NSS_PIN, 0 );
uint8_t txData = (ReadAddr | 0x80); // Need to set first bit high for reading
HAL_StatusTypeDef status = HAL_SPI_Transmit( &hspi2, &txData, 1, HAL_MAX_DELAY);
if (status != HAL_OK)
{
PRINTF("SPI read transmit failed status: %d\n", status);
return 1;
}
status = HAL_SPI_Receive( &hspi2, pBuffer, nBytesToRead, HAL_MAX_DELAY);
if (s
