[GitHub] [mynewt-core] stuffmatic opened a new pull request #2509: bsp/stm32f4discovery: Add UART_1 support to enable logging using the ST-LINK virtual COM port

[GitBox]

stuffmatic opened a new pull request #2509:
URL: https://github.com/apache/mynewt-core/pull/2509


   This PR adds `UART_1` support by adding `os_bsp_uart1_cfg`, which uses 
`USART2`. This makes it possible to use the ST-LINK virtual COM port for 
logging if
   
   1. Flying wires have been connected according to figure 6 (ST-LINK VCP 
connection to USART2) in the STM32F4DISCOVERY user manual
   2. `UART_1` and `CONSOLE_UART_DEV` are set to `1` and `uart1` respectively
   
   Below is the relevant page from the manual.
   
   <img width="684" alt="Screenshot 2021-02-28 at 19 59 17" 
src="https://user-images.githubusercontent.com/2444852/109430038-71ee5c00-79ff-11eb-9858-d7da9b187b32.png";>
   


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