Incorrect code generation for UART5 of F767

[dungeonlords789]

I generate code for stm32f767. I use software package 1.16.0 I want to use UART5 in auto baud mode via 0x55 symbol. And USART3 the same. Why code is different?

static void MX_UART5_Init(void){
 /* USER CODE BEGIN UART5_Init 0 */
 /* USER CODE END UART5_Init 0 */
 /* USER CODE BEGIN UART5_Init 1 */
 /* USER CODE END UART5_Init 1 */
 huart5.Instance = UART5;
 huart5.Init.BaudRate = 115200;
 huart5.Init.WordLength = UART_WORDLENGTH_9B;
 huart5.Init.StopBits = UART_STOPBITS_1;
 huart5.Init.Parity = UART_PARITY_EVEN;
 huart5.Init.Mode = UART_MODE_TX_RX;
 huart5.Init.HwFlowCtl = UART_HWCONTROL_NONE;
 huart5.Init.OverSampling = UART_OVERSAMPLING_16;
 huart5.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
 huart5.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;//wtf? ABRMOD0 and ABRMOD1 and ABREN will be 0
 huart5.AdvancedInit.AutoBaudRateMode = UART_ADVFEATURE_AUTOBAUDRATE_ON0X55FRAME;
 
 if (HAL_UART_Init(&huart5) != HAL_OK){
   Error_Handler();
 }
 
 /* USER CODE BEGIN UART5_Init 2 */
 /* USER CODE END UART5_Init 2 */
}

This is ok code for USART3:

static void MX_USART3_UART_Init(void){
 /* USER CODE BEGIN USART3_Init 0 */
 /* USER CODE END USART3_Init 0 */
 /* USER CODE BEGIN USART3_Init 1 */
 /* USER CODE END USART3_Init 1 */
 
 huart3.Instance = USART3;
 
 huart3.Init.BaudRate = 115200;
 
 huart3.Init.WordLength = UART_WORDLENGTH_9B;
 
 huart3.Init.StopBits = UART_STOPBITS_1;
 
 huart3.Init.Parity = UART_PARITY_EVEN;
 
 huart3.Init.Mode = UART_MODE_TX_RX;
 
 huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
 
 huart3.Init.OverSampling = UART_OVERSAMPLING_16;
 
 huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
 
 huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_AUTOBAUDRATE_INIT;//looks ok
 
 huart3.AdvancedInit.AutoBaudRateEnable = UART_ADVFEATURE_AUTOBAUDRATE_ENABLE;
 
 huart3.AdvancedInit.AutoBaudRateMode = UART_ADVFEATURE_AUTOBAUDRATE_ON0X55FRAME;
 
 if (HAL_UART_Init(&huart3) != HAL_OK)
 
 {
 
   Error_Handler();
 
 }

[Khouloud OTHMAN]

Hello dungeonlords789,

Thank you for your post . Issue confirmed and raised internally for correction. We will give you an update as soon as possible.

Regards,

Khouloud.

[dungeonlords789]

@Khouloud OTHMAN​ any questions/solutions?

[Khouloud OTHMAN]

Hello dungeonlords789,

Sorry for the inconvenience. The problem has been corrected and the fix will be available in the next release.

Thanks for your patience.

Regards,

Khouloud.

[dungeonlords789]

Any news? @Khouloud OTHMAN​ 

[Khouloud OTHMAN]

Hi @dungeonlords789​ ,

Actually this issue has been fixed in the STM32CubeMX version 6.1.0. Did you try with the latest STM32CubeMX version ?

Khouloud.

[dungeonlords789]

Now I use pack 1.16.1

and I try to use UART5 on my stm32f767

I select autobauderate:

Than I connect stm32f767 to my uart device with 9600 baud. I transmit 'U'. But I am going to Error_Handler.

if (__HAL_UART_GET_FLAG(&huart5, UART_FLAG_ABRE)!= RESET){

       Error_Handler();

 }

I try to understand what happend and I find MX_UART5_Init with

huart5.Init.BaudRate = 115200;

Yes, I did not set baud! Why CubeIDE generate 115200? And why it is important? When I set 9600 on my prog no Error_Handler()!

[dungeonlords789]

my UART5 example

I also try to make the same proj with USART3 and it's working with out error!

@Khouloud OTHMAN​ 

[dungeonlords789]

I also find very interesting code in stm32f767xx.h. Does UART5 support auto baud? How check it? I can't see list of supported UART in stm32f76xx datasheet and AN4908 Rev 2 is very old (no stm32f767)...

/****************** UART Instances : Auto Baud Rate detection ****************/

#define IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(__INSTANCE__) (((__INSTANCE__) == USART1) || \

                                   ((__INSTANCE__) == USART2) || \

                                   ((__INSTANCE__) == USART3) || \

                                   ((__INSTANCE__) == USART6))

@Imen DAHMEN​ 

[dungeonlords789]

@Khouloud OTHMAN​