Thank you but it still doesn't work
static void MX_USART2_UART_Init(void)
{
/* USER CODE BEGIN USART2_Init 0 */
RCC->AHB2ENR |= RCC_AHB2ENR_GPIODEN; // ENABLE GPIO PORT D CLOCK (BIT 0)
RCC->APB1LENR |= RCC_APB1LENR_USART2EN; // ENABLE UART2 CLOCK (BIT 14)
///*
GPIOD->MODER &= ~((3u << 10) // CLEAR PD5
|(3u << 12)); // CLEAR PD6
// SET PIN MODES
GPIOD->MODER |= ((2u << 10) // SET PD5 TO AF
|(2u << 12)); // SET PD6 TO AF
GPIOD->AFR[0] &= ~((15u << 20) // CLEAR PD5 AF
|(15u << 24)); // CLEAR PD6 AF
// SET ALTERNATE FUNCTION
GPIOD->AFR[0] |= ((7u << 20) // SET PD5 AF
|(7u << 24)); // SET PD6 AF
USART2->CR1 &= ~(USART_CR1_M1 // CLEAR M1 FOR 1 START BIT AND 8 DATA BITS (28)
|(0x03 << 26) // INHIBIT INTERRUPTS AT BITS 26 AND 27 (27/26)
|USART_CR1_OVER8 // OVERSAMPLING BY 16 (15)
|USART_CR1_CMIE // INHIBIT CHARACTER MATCH INTERRUPT (14)
|USART_CR1_MME // DON'T ENABLE MUTE MODE (13)
|USART_CR1_M0 // CLEAR M0 FOR 1 START BIT AND 8 DATA BITS (12)
|USART_CR1_PCE // NOT IMPLEMENTING PARITY CONTROL (10)
|(0x1F << 3) // INHIBIT INTERRUPTS AT BITS 4 TO 8 (4-8)
|USART_CR1_TE // DON'T ENABLE TRANSMITTER JUST YET (3)
|USART_CR1_RE // DON'T ENABLE RECEIVER JUST YET (2)
|USART_CR1_UE); // DON'T ENABLE UART2 JUST YET (0)
// SET BAUD RATE IN BRR REGISTER
USART2->BRR = 2170;
// VALUE THAT SETS BAUD RATE TO 115,200 AT INPUT FREQUENCY OF 250MHZ
// ENABLE UART
USART2->CR1 |= (USART_CR1_TE // ENABLE TRANSMITTER (3)
|USART_CR1_RE // ENABLE RECEIVER (2)
|USART_CR1_UE); // ENABLE UART2 (0)
/* USER CODE END USART2_Init 0 */
/* USER CODE BEGIN USART2_Init 1 */
/* USER CODE END USART2_Init 1 */
*/
if (HAL_UART_Init(&huart2) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart2, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart2, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART2_Init 2 */
/* USER CODE END USART2_Init 2 */
}View more
also I see the clock config for the UART2 and it's 250MHz from the PCLK1, should I change that?
