Hi everyone
using the UART1 by modifying the tx and rx pins according to my personal application, I am unable to connect with the 7F synchronization byte using stm32cubeprogrammer. Below is the code I modified:
/* ------------------------- Definitions for USART -------------------------- */
#define USARTx USART1 //USART2
#define USARTx_TX_PIN GPIO_PIN_4 //GPIO_PIN_5 USART2 VISIA //GPIO_PIN_9
#define USARTx_TX_GPIO_PORT GPIOC //GPIOD USART2 VISIA //GPIOA
#define USARTx_RX_PIN GPIO_PIN_7 //GPIO_PIN_6 USART2 VISIA //GPIO_PIN_10
#define USARTx_RX_GPIO_PORT GPIOB //GPIOD USART2 VISIA //GPIOA
#define USARTx_ALTERNATE GPIO_AF7_USART1 //GPIO_AF7_USART
void OPENBL_USART_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Enable all resources clocks --------------------------------------------*/
/* Enable used GPIOx clocks */
//__HAL_RCC_GPIOA_CLK_ENABLE();
//__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/* Enable USART clock */
__HAL_RCC_USART1_CLK_ENABLE();
//__HAL_RCC_USART2_CLK_ENABLE();
/* USART1 pins configuration -----------------------------------------------*/
/*
+-------------+
| USART1 |
+-----+-------------+
| TX | PA9 |
+-----+-------------+
| RX | PA10 |
+-----+-------------+
+-------------+
|USART2 VISIA |
+-----+-------------+
| TX | PD5 |
+-----+-------------+
| RX | PA15 | PD6 sk beta
+-----+-------------+
+-------------+
|USART1 VISIA |
+-----+-------------+
| TX | PC4 |
+-----+-------------+
| RX | PB7 |
+-----+-------------+*/
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;//GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;//GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = USARTx_ALTERNATE;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = USARTx_RX_PIN;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
OPENBL_USART_Init();
}
/**
* @brief This function is used to detect if there is any activity on USART protocol.
* @retval None.
*/
uint8_t OPENBL_USART_ProtocolDetection(void)
{
uint8_t detected;
/* Aknowledge the host */
// OPENBL_USART_SendByte(ACK_BYTE);
//
// detected = 1U;
//
// return detected;
/* Check if the USART1 is addressed */
if (((USART1->ISR & LL_USART_ISR_ABRF) != 0) && ((USART1->ISR & LL_USART_ISR_ABRE) == 0)) {
/* Check if the USART2 is addressed */
//if (((USART2->ISR & LL_USART_ISR_ABRF) != 0) && ((USART2->ISR & LL_USART_ISR_ABRE) == 0)) {
/* Read byte in order to flush the 0x7F syncronization byte */
OPENBL_USART_ReadByte();
/* Aknowledge the host */
OPENBL_USART_SendByte(ACK_BYTE);
detected = 1U;
}
else
{
detected = 0U;
}
return detected;
}
If I always use the UART2 of my application it works instead.
I would like to thank anyone who can help me now.
