Because the feel of the Xiaomi Bluetooth mouse is too bad, especially the scroll wheel button, which makes my fingers easily tired, I recently replaced it with the Rapoo Multi-mode Bluetooth Mouse M60
When loading the program, a fatal error is reported, and the message "failed to write memory at 0xe012" appears. Is it a hardware problem or a software problem? I made the board myself, so is the micr
My board is STM32F103VE. I want to use the timer to count external pulses. Unfortunately, all the default ETRs of the IO are occupied by the peripherals of the board (sweating). I tried two methods:1
[code]void DelayUsx2(unsigned int t) { while(--t); }[/code]This is the code I wrote, but after setting the frequency of KEIL to 12Mhz, every time t decreases by 1, the time consumed is 8us. Its assemb