https://www.st.com/resource/en/programming_manual/pm0214-stm32-cortexm4-mcus-and-mpus-programming-manual-stmicroelectronics.pdf https://www.st.com/resource/en/p

https://www.st.com/resource/en/programming_manual/pm0214-stm32-cortexm4-mcus-and-mpus-programming-manual-stmicroelectronics.pdf https://www.st.com/resource/en/programming_manual/pm0214-stm... I'm only half kidding, the programming manuals are pretty good these days. Honestly there's more in common with the arduino and a modern uC than there is different. If you want to use the knowledge in anger you need to learn linker scripts, makefiles, gcc, gdb and jtag so you can deploy and debug code on boards that don't have self-flashing bootloaders and FTDI baked in. There's also some tribal knowledge about how ISRs work like keeping ISRs as short as possible (no print statements) but I don't know what books cover that.