Repository navigation
Add a build flag to disable specific USART IRQ handlers defined in the core #2899
Description
Activity
Hi @Santynolo
I see why but don't like the fact to mix Arduino and pure HAL.
Anyway feel free to provide a PR.I would like to but i'm wondering if my suggested implementation can cause issues. If not i'll do it
What is your goal exactly?
I have a custom USART2 and USART3 implementation that uses a clock signal. I need access to the IRQHandlers because the way they're implemented in the core it only services UART, and not USART.
Here you can see that the core is using
HAL_UART_IRQHandlerinstead ofHAL_USART_IRQHandler. This causes a hang on my MCU (STM32G431RBT6). The only way i found to fix this hang is to undefine this snippet and use my own implementation here:
(Ignore the fact it's USART3 for now it's the quickest example i had)
This fixes the hang and my MCU is no longer reset by the watchdog.
I also need to keep the HardwareSerial class working because i use USART1 as my debugging serial port, and i use another library that needs the class for debugging. (SimpleFOC)Another possible fix would be a build flag that leaves the
USART2_IRQHandlerdefinition, but allows it to switch fromHAL_UART_IRQHandlertoHAL_USART_IRQHandler
Is your feature request/improvement related to a problem? Please describe.
Without a way to undefine specific USARTx_IRQHandlers defined in the core, custom implementations of USART while keeping Serial functionality in others is not possible.
Describe the solution you'd like
I would like an additional build flag like "HAL_DISABLE_USART2IRQHANDLER" to disable specific USARTx_IRQHandler functions that are defined in the core, so they can be defined in the user's code instead, while keeping other USARTx_IRQHandler definitions to be able to use HardwareSerial on them.
Additional context
Here's a photo of the USART2_IRQHandler. For example, i would like to disable this specific handler, so i can use my own definition in my code, to write a custom use case, and be able to leave USART1 as is, so i can use HardwareSerial to print messages to the monitor.
Here is my suggested implementation: (I do not know if this will cause issues)
Thanks. This could also be implemented in other IRQHandlers, for example to disable specific ADC IRQHandlers, without disabling the entire ADC arduino implementation.