Tool/software:
Hello, i m using the dac80501 with this code to output some voltage, my issue whatever the command i send and value i give, i m getting 0v at Vout, i need help regarding this.
main.c
uint8_t cmd_1 = 0x05;
uint16_t data_1 = 0x000A;
uint8_t cmd_2 = 0x04;
uint16_t data_2 = 0x0101; //0x0001;
uint8_t cmd_3 = 0x08;
uint16_t data_3 = 0xFFFF; //0xFFFF;
write_dac80501(cmd_1, data_1);
HAL_Delay(10);
write_dac80501(cmd_2, data_2);
write_dac80501(cmd_3, data_3);
spi function
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_2EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 0x0;
hspi5.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
hspi5.Init.NSSPolarity = SPI_NSS_POLARITY_LOW;
hspi5.Init.FifoThreshold = SPI_FIFO_THRESHOLD_01DATA;
hspi5.Init.TxCRCInitializationPattern = SPI_CRC_INITIALIZATION_ALL_ZERO_PATTERN;
hspi5.Init.RxCRCInitializationPattern = SPI_CRC_INITIALIZATION_ALL_ZERO_PATTERN;
hspi5.Init.MasterSSIdleness = SPI_MASTER_SS_IDLENESS_00CYCLE;
hspi5.Init.MasterInterDataIdleness = SPI_MASTER_INTERDATA_IDLENESS_00CYCLE;
hspi5.Init.MasterReceiverAutoSusp = SPI_MASTER_RX_AUTOSUSP_DISABLE;
hspi5.Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_DISABLE;
hspi5.Init.IOSwap = SPI_IO_SWAP_DISABLE;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
dac function
void write_dac80501(uint8_t command, uint16_t value)
{
uint8_t send_data[3] = {0x00};
send_data[0] = command;
send_data[1] = (value >> 8) & 0xFF;
send_data[2] = value & 0xFF;
HAL_GPIO_WritePin(SPI5_CS_PIN_GPIO_Port, SPI5_CS_PIN_Pin, GPIO_PIN_SET);
HAL_Delay(1);
HAL_GPIO_WritePin(SPI5_CS_PIN_GPIO_Port, SPI5_CS_PIN_Pin, GPIO_PIN_RESET);
if(HAL_SPI_Transmit(&hspi5, send_data, 3, HAL_MAX_DELAY) != HAL_OK)
{
Error_Handler();
}
HAL_GPIO_WritePin(SPI5_CS_PIN_GPIO_Port, GPIO_PIN_6, GPIO_PIN_SET);
}
Pin connection
please help.
