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STM32F2 HAL UART (IRQ?) issues upgrading from 1.1.2 to current

Question asked by Allen Huffman on Feb 2, 2018
Latest reply on Mar 14, 2018 by Allen Huffman

We had a legacy F2-based project that was built using the HAL 1.1.2 version:


  * @file    stm32f2xx_hal_uart.h
  * @author  MCD Application Team
  * @version V1.1.2
  * @date    11-December-2015


We updated the HAL to the current version inside the zip (1.2.1 or later - they seem to have removed the version number from the headers with a recent release).


We have been experiencing issues that have been traced back to the UART code. In fact, if we just revere the uart.c and uart.h files to the older 1.1.2, things go back to working.


Release notes indicate some UART changes took place with 1.1.3, and we are trying to figure out what we might be needed to update to work with the current UART HAL.


Any thoughts on where to look?