Jun 21, 2015

ST-Link V2 to STM32F103C8T6

ST-Link V2 and the STM32 C8 on the picture are purchased from ebay seller in China. It is much easier to program the chip using this interface rather than serial interface because I don't need to touch the board to erase/download/run the program. There are only 4 wires needed ie. 3.3VCC, GND, SWDIO and SWCLK. The utility program and the USB driver seem not available anymore from ST official website, you can dig it from other place in internet. New ideas will emerge after using the ST-Link V2, I would build STM32 based PLC and I wish I have time to make it happen.

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MAX7219 8-digits 7-segment (STM32F103C8T6)

I made MAX7219 for C51 but now I need it for STM32F103 too. The wiring is simple: MAX7219_CLK   hooked up to PORTA0, MAX7219_...