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Dobrica Pavlinušić's random unstructured stuff
Blue Pill: Revision 15
{file: The-Generic-STM32F103-Pinout-Diagram.pdf}
{toc: } stm32f103 board ^ arduino boot loader * https://github.com/rogerclarkmelbourne/Arduino_STM32/wiki/Flashing-Bootloader-for-BluePill-Boards ^ triple usb serial ^^ pill_serial * https://satoshinm.github.io/blog/171223_stm32serial_triple_usb-to-serial_adapter_using_stm32_blue_pill.html * https://github.com/satoshinm/pill_serial | Function | Pin and Port | | USART3 TX | PB10 | | USART3 RX | PB11 | | USART2 TX | PA2 | | USART2 RX | PA3 | | USART1 TX | PA9 | | USART1 RX | PA10 | | USART | TX pin | RX pin | special | speed | sensor | linux | | 3 | PB10 | PB11 | | 9600 | [MH-Z19B] | /dev/ttyACM1 | | 2 | PA2 | PA3 | | 9600 | | | | 1 | PA9 | PA10 | BOOT=0 | 9600 | | | .pre dpavlin@nuc:/nuc/stm32/pill_serial$ cat flash.sh sudo ../stlink/build/Release/st-flash write src/pill_serial.bin 0x08000000 .pre lower serial speed to 9600 so we can use slow sensors on it: {file: serial-speed.diff} ^^ bluepill-serial-monster https://github.com/r2axz/bluepill-serial-monster ^ openocd with raspberry pi http://git.rot13.org/?p=openocd-rpi2-stm32;a=blob;f=openocd-rpi.txt ^ clones https://github.com/thanks4opensource/buck50/issues/2 https://github.com/keirf/Greaseweazle/wiki/STM32-Fakes .pre dpavlin@nuc:/nuc/stm32/Greaseweazle$ wget https://github.com/keirf/Greaseweazle/releases/download/v0.22/Greaseweazle-v0.22.zip dpavlin@nuc:/nuc/stm32/Greaseweazle$ unzip Greaseweazle-v0.22.zip Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex Archive: Greaseweazle-v0.22.zip inflating: Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex .pre write it to flash using openocd .pre > flash write_image erase /nuc/stm32/Greaseweazle/Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex 0 ihex auto erase enabled wrote 5120 bytes from file /nuc/stm32/Greaseweazle/Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex in 0.299529s (16.693 KiB/s) .pre serial output is on the programming interface at pins A9/TX and A10/RX: Not via the USB port! .pre pi@pihdmi:/nuc/stm32/buck50 $ microcom -p /dev/ttyUSB1 connected to /dev/ttyUSB1 Escape character: Ctrl-\ Type the escape character to get to the prompt. ** Blinky ** Blinky Test ** ** Keir Fraser <keir.xen@gmail.com> ** https://github.com/keirf/Greaseweazle Serial = ff48:0670:8967:5655:4740:6706 Flash Size = 128kB Device ID = 0x0000 Revision = 0x0000 Testing I2C1... OK Testing I2C2... OK Testing SPI1... OK Testing SPI2... OK Testing TIM1... OK Testing TIM2... OK Testing TIM3... OK Testing TIM4... OK DMA Test #1... OK DMA Test #2... OK DMA Test #3... OK DMA Test #4... OK Testing 64kB Flash... OK Enable TIM4 IRQ... .OK Testing 20kB SRAM (endless loop)................................................................ .pre After flashing this test, you will not be able to address blue pill using openocd. To work-around this problem, I switched boot0 jumper, used stm32loader (after pressing reset button) to load alternative binary. |