Solved
STM32F09xx USART LIN break interrupt management using HAL drivers
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