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1d95950ca1
This board is sold by several vendors on AliExpress, Amazon and ebay. It does not have name, but since it comes in the same form-factor and color as the Bluepill line of boards, I think it makes sense to use that name. Flashing is a bit cumbersome as I always had to press the reset button in time when OpenOCD tries to connect to the CPU. There is no dedicated reset pin exposed on the board.
66 lines
2.5 KiB
Plaintext
66 lines
2.5 KiB
Plaintext
/**
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@defgroup boards_bluepill-stm32f030c8 STM32F030C8 based Bluepill
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@ingroup boards
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@brief Support for the STM32F030C8 based Bluepill
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## Overview
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The STM32F030C8 based Bluepill is a very cheap breakout board for the STM32F030C8 MCU.
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## Hardware
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### MCU
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| MCU | STM32F030C8T6 |
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|:---------- |:--------------------- |
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| Family | ARM Cortex-M0 |
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| Vendor | ST Microelectronics |
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| RAM | 8 KiB |
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| Flash | 64 KiB |
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| Frequency | up to 48MHz |
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| FPU | no |
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| Timers | 8 (2x watchdog, 1 SysTick, 5x 16-bit) |
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| ADCs | 1x 12-bit |
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| UARTs | 2 |
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| SPIs | 2 |
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| I2Cs | 2 |
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| RTC | 1 |
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| Vcc | 2.0V - 3.6V |
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| Datasheet | [Datasheet](https://www.st.com/en/microcontrollers-microprocessors/stm32f030f4.html) |
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| Reference Manual | [Reference Manual](https://www.st.com/resource/en/datasheet/stm32f030f4.pdf) |
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| Programming Manual | [Programming Manual](http://www.st.com/resource/en/programming_manual/dm00051352.pdf) |
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## Flashing the device
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The STM32F030C8 based Bluepill board does not include a programmer.
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You have to connect a separate ST-Link programmer to the (SW)DIO, (SW)CLK and GND
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pins on the board.
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If you want a serial terminal, you have to connect a separate USB-Serial adapter to
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the PA09 (TX) and PA10 (RX) pins on the board.
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The easiest way to program the board is to use OpenOCD. Once you have installed
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OpenOCD (look [here](https://github.com/RIOT-OS/RIOT/wiki/OpenOCD) for
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installation instructions), you can flash the board simply by typing
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```
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make BOARD=bluepill-stm32f030c8 flash
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```
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and debug via GDB by simply typing
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```
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make BOARD=bluepill-stm32f030c8 debug
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```
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## Known Issues
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### Flashing fails
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The board does not expose a pin for the reset signal but wires it only to the
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reset button.
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You can work around this by pressing the reset button when OpenOCD wants to connect
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to the Blue Pill, or keep it pressed until OpenOCD tries to connect.
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Hit the reset button again after flashing in order to boot the newly flashed image.
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*/
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