Blue Pill

Hidden flash ram?

ST-LINK programátor

ST-LINK v2 programátor pro STM32.

AliExpress: https://www.aliexpress.com/item/Hot-Sale-1PCS-ST-LINK-Stlink-ST-Link-V2-Mini-STM8-STM32-Simulator-Download-Programmer-Programming/32343514985.html

Utility: http://www.st.com/content/st_com/en/products/embedded-software/development-tool-software/stsw-link004.html
Firmware upgrade:http://www.st.com/en/embedded-software/stsw-link007.html
Driver: http://www.st.com/content/st_com/en/products/embedded-software/development-tool-software/stsw-link009.html

STM32duino bootloader

Flash bootloader přes ST-LINK na Windows.

stáhnout bootloader https://github.com/rogerclarkmelbourne/STM32duino-bootloader/blob/master/STM32F1/binaries/generic_boot20_pc13.bin
přesunout a přejmenovat do C:\Users\user\Documents\Arduino\hardware\Arduino_STM32\tools\win\bootl.bin
v příkazovém řádku spustit stlink\ST-LINK_CLI.exe -c SWD -P bootl.bin 0x8000000 -Rst -Run

C:\...s\Arduino\hardware\Arduino_STM32\tools\win>stlink\ST-LINK_CLI.exe -c SWD -P bootl.bin 0x800000
STM32 ST-LINK CLI v2.1.0
STM32 ST-LINK Command Line Interface

ST-LINK SN : 57FF6E065077545159291587
ST-LINK Firmware version : V2J28S7
Connected via SWD.
SWD Frequency = 1800K.
Connection mode : Normal.
Device ID:0x410
Device flash Size : 64 Kbytes
Device family :STM32F10xx Medium-density

Loading file...
Flash Programming:
  File : bootl.bin
  Address : 0x08000000
Flash memory programming...
██████████████████████████████████████████████████ 100%
Flash memory programmed in 0s and 904ms.
Programming Complete.

MCU Reset.

Application started.

Arduino IDE

Instalace a příprava Arduino IDE pro STM32

Nastavení ST-LINK v Arduino IDE

Spustit Arduino IDE a nastavit následující.

Menu: Nástroje → Vývojová deska:
- vybrat Generic STM32F103C series

Menu: Nástroje → Variant:
- vybrat STM32F103CB (20k RAM, 128k Flash)

Menu: Nástroje → Upload method:
- vybrat STLink