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blackmagic-debug / blackmagic

In application debugger for ARM Cortex microcontrollers.
GNU General Public License v3.0
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SWIM_AS_UART=1 pinout not documented in the ST-Link v2 platform #1535

Open aguaviva opened 1 year ago

aguaviva commented 1 year ago

1) What baudrate do I have to use? 2) What is the RX pin in the swim connector, the "swim"or the "reset" pin?

Cheers

dragonmux commented 1 year ago

Hi aguaviva, regarding the baud rate - this is set when you open the serial port on the host side and can be any value up to the max supported by UART1 on the STM32F1.

The pinout not being noted in the platform README is a bit remiss, but the remapping puts the UART on pins PB6 (TX) and PB7 (RX) as seen by the processor. Googling "stlink SWIM schematic" gives us results showing that the SWIM line should be going to PB7 and reset to PB6, making SWIM the receive pin.

aguaviva commented 1 year ago

Thank you, you are awesome.