2020-07-07 2:53 AM
Hi everyone,
I tried to manage the USAR LIN break detection interrupt using only HAL driver functions but I did not find a way to do that. I had to modify the file stm32f0xx_hal_uasrt.c adding some code to manage the LIN break interrupt.
Is there a way to detect the LIN break in my application without modifying the driver code?
This is the code I added to the aforementioned HAL driver file:
// At the beginning of the file, where other prototypes are placed
#if defined (USART_CR2_LINEN)
extern void HAL_UART_LINBreakCallback(UART_HandleTypeDef *);
#endif
//...
// Inside function HAL_UART_IRQHandler
#if defined (USART_CR2_LINEN)
/* UART LIN break has been detected ----------------------------------------*/
if(isrflags & USART_ISR_LBDF)
{
__HAL_UART_CLEAR_IT(huart, UART_CLEAR_LBDF);
/* Call the callback function to signal LIN break detection */
HAL_UART_LINBreakCallback(huart);
}
#endif /* USART_CR2_LINEN */
If the function is currently unavailable, is there a way to tell STM to add it to the official driver so I can use the CUbeMX without needing to patch it every time?
Thank you so much,
Diego
Solved! Go to Solution.
2025-04-18 4:43 AM
Hello,
The answer from our Dev team. There will be no plan to implement that in the near future. But we will take that into account in the newer implementations.
Thank you.
2023-06-27 12:06 AM
Ping...
2024-06-06 7:36 AM
Another ping.
It is very surprising the LIN break detection callback has not been added to the driver.
2024-06-06 8:13 AM
It seems no one else uses LIN break...
ping ST
Request timed out.
2024-06-06 8:19 AM
...and Auto Baud Rate Flag/Error.
2024-06-06 9:04 AM
Hello @CptHuk ,
Internal ticket 183583 (not accessible by community member) has been created for follow-up.
2024-06-07 2:30 AM
Very good news!
2025-04-18 4:43 AM
Hello,
The answer from our Dev team. There will be no plan to implement that in the near future. But we will take that into account in the newer implementations.
Thank you.