Getting the wrong status value from HAL Libabry

[MDeva.1]

Hello,

I configure the DAC using SPI configuration. I am reading the DAC registers value , when register is read back i got wrong status value from HAL Library why these happened?

for(i=0,j=0,k=0;i<=46;i++,j++,k++)

{

Read( SAW_ADD[i],SAW_Val[j],SAW_RDD[k]);

}

void Read( uint16_t add, uint16_t data,uint16_t Read_add)

{

HAL_GPIO_WritePin(CS_GPIO_Port, CS_Pin, GPIO_PIN_RESET);

status2=HAL_SPI_Transmit(&hspi4, (uint8_t*)&Read_add, sizeof(add),100);

status3=HAL_SPI_Receive(&hspi4, (uint8_t*)&Read_value, sizeof(add),100);

HAL_GPIO_WritePin(CS_GPIO_Port, CS_Pin, GPIO_PIN_SET);

printf("s=%ds=%dAdd=%xValue=%x\n\n\r",status2,status3,Read_add,Read_value);

HAL_Delay(100);

}

[gbm]

To kkep it short: use TransmitReceive / send and receive data at the same time. That's how the SPI works.

[Tesla DeLorean]

Perhaps use local variables rather than globals

Use the sizeof() the variable you're referring too rather than another.