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stm32duino-raspberrypi
Discontinued An arduino toolchain that runs on raspberry pi and targets stm32 arm processors ("blue pill").
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STM32duino-bootloader
Bootloader for STM32F103 boards, for use with the Arduino_STM32 repo and the Arduino IDE
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
For openocd you should indeed connect the pins that you mentioned. For stm32flash it's A9 and A10. This guide has instructions on how to set things up for STM32 programming on RPi Arduino IDE, both for stm32flash and openocd and others. Make sure to read from beginning since there're a few things to configure. It says how to configure Arduino IDE and which pins to use depending on what communication you want.
You might also need to set the /dev/ttyAMA0 as serial port0 you can follow this guide . The git repo they mention changed (https://github.com/rogerclarkmelbourne/STM32duino-bootloader) Idk if this is necessary so skip it by default.