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boards/common/blxxxpill: use UART_DEV(0) for stdio

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Using `UART_DEV(0)` (UASRT1) for stdio allows to use the same TTL
adapter that is used for programming via `stm32flash` to be used for
serial, without re-wiring after flashing.
This commit is contained in:
Marian Buschsieweke 2022-08-12 17:09:21 +02:00
parent 50e4498c84
commit a1ed6f3b78
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2 changed files with 5 additions and 4 deletions
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5
boards/common/blxxxpill/doc.txt
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@ -88,8 +88,9 @@ development version of OpenOCD.
## Connecting via Serial ## Connecting via Serial
The default UART port used is UART2, which uses pins A2 (TX) and A3 (RX). The default UART port used is UART1, which uses pins A9 (TX) and A10 (RX).
To use it, configure your UART to operate at a baudrate of 115200/8N1. To use it, configure your UART to operate at a symbol rate of 115200 baud,
1 stop bit and no parity (8N1).
## Using PWM ## Using PWM

4
boards/common/blxxxpill/include/board_common.h
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@ -50,9 +50,9 @@ extern "C" {
/** @} */ /** @} */
/** /**
* @brief Use the 2nd UART for STDIO on this board * @brief Use the fist UART for STDIO on this board
*/ */
#define STDIO_UART_DEV UART_DEV(1) #define STDIO_UART_DEV UART_DEV(0)
/** /**
* @name xtimer configuration * @name xtimer configuration