https://github.com/satoshinm/pill_serial

Triple USB-to-serial adapter firmware for flashing onto an STM32F103C8T6 "blue pill" minimum development board ⛺
https://github.com/satoshinm/pill_serial

Last synced: 2 months ago
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Triple USB-to-serial adapter firmware for flashing onto an STM32F103C8T6 "blue pill" minimum development board ⛺

• Host: GitHub
• URL: https://github.com/satoshinm/pill_serial
• Owner: satoshinm
• License: gpl-3.0
• Created: 2017-12-24T07:48:28.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2020-04-05T17:14:48.000Z (almost 5 years ago)
• Last Synced: 2024-11-09T15:42:26.820Z (2 months ago)
• Language: C
• Size: 376 KB
• Stars: 138
• Watchers: 9
• Forks: 30
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • License: COPYING

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README

        
pill\_serial: USB-to-serial x 3

===============================

[![CircleCI](https://circleci.com/gh/satoshinm/pill_serial.svg?style=svg)](https://circleci.com/gh/satoshinm/pill_serial)

Triple USB-to-serial adapter firmware for flashing onto an STM32F103C8T6 "blue pill" minimum development board

Run `make` to build, then flash the `src/pill_serial.bin` file to a blue pill over the PA9/PA10 serial port with BOOT0=1.

Then plug in the blue pill into your PC using USB, and three virtual (ACM CDC, "/dev/usbmodem") serial ports should appear.

These correspond to the three USART ports available on the board, in order:

| TX pin | RX pin |

| ------ | ------ |

| PB10   | PB11   |

| PA2    | PA3    |

| PA9    | PA10   |

This code is heavily based on the [Black Magic Debug Probe firmware](https://github.com/blacksphere/blackmagic).

Note if you only need one serial port, you may be better off using the Black Magic Probe, since it also provides a JTAG/SWD probe,

whereas pill\_serial only provides serial ports.

See also associated blog post: *[Triple USB-to-serial adapter using STM32 blue pill](https://satoshinm.github.io/blog/171223_stm32serial_triple_usb-to-serial_adapter_using_stm32_blue_pill.html)*

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