I accidentally bricked my STM32 when uploading compiled binaries to it. I used a Raspberry Pi Pico 2 and the official CMSIS-DAP firmware with OpenOCD. After some messing around, I found the way to un-brick it and how to prevent bricking.
I was working on controlling some stepper motors on a robot. I wanted to control them with an STM32. The STM32 is controlled by a Raspberry Pi 5 with SPI. To generate the periodic signal for the stepper driver, I used the timer peripheral on the STM32. I this blog, I will go through the basics of the timer peripheral and how I set it up for this usage.
I was working with the ST7735 screen in a project at NTHUEE 822 Maker Space. We were controlling the screen with an STM32F103C8T6 Blue Pill and Adafruit's ST7735 & ST7789 library. And we ran into a very interesting bug, which was caused by the value of "pins" in the STM32 Arduino core. In this article, I will explain the cause of the bug and the workaround for current version of the libraries.
