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Add "serial" upload information #100

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Add "serial" upload information #100

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9e864a0
Add "serial" upload information
gmcn42 Nov 28, 2019
e54920a
Update boards/ststm32/bluepill_f103c8.rst
gmcn42 Sep 29, 2020
a9133de
Merge branch 'develop' into patch-1
gmcn42 Sep 29, 2020
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8 changes: 7 additions & 1 deletion boards/ststm32/bluepill_f103c8.rst
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Expand Up @@ -72,6 +72,7 @@ BluePill F103C8 supports the next uploading protocols:
* ``dfu``
* ``jlink``
* ``mbed``
* ``serial``
* ``stlink``

Default protocol is ``stlink``
Expand All @@ -85,6 +86,10 @@ You can change upload protocol using :ref:`projectconf_upload_protocol` option:
board = bluepill_f103c8

upload_protocol = stlink

**A Note on the** ``serial`` **upload protocol:**

The STM32 chips have a builtin bootloader which can be activated by setting the BOOT0 jumper to 1 (BOOT1 should be kept at 0) and pushing the reset button. The MCU will then wait for programming over the main UART. The pins are PA9 (TX) and PA10 (RX) on the blue pill boards. Programming will work using a USB/TTL-UART adapter, for example CH340 or similar. Keep in mind that RX from the MCU needs to be connected to TX of the USB adapter and vice versa.

Debugging
---------
Expand Down Expand Up @@ -141,4 +146,5 @@ Frameworks
- The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with safety and security in mind

* - :ref:`framework_libopencm3`
- The libOpenCM3 framework aims to create a free and open-source firmware library for various ARM Cortex-M0(+)/M3/M4 microcontrollers, including ST STM32, Ti Tiva and Stellaris, NXP LPC, Atmel SAM3, Energy Micro EFM32 and others
- The libOpenCM3 framework aims to create a free and open-source firmware library for various ARM Cortex-M0(+)/M3/M4 microcontrollers, including ST STM32, Ti Tiva and Stellaris, NXP LPC, Atmel SAM3, Energy Micro EFM32 and others