The current key tone is what was used when the kernel was generated. I want to change it to a different sound. How can I change it? Where is this sound file hidden? Has anyone changed this key tone fi...
I used Wanli's demo board EK-STM3210E, and the compiler was MDK.It's best not to use the board's emulator ST LINK II. A lot of inexplicable crashes were annoying.Many of them died in HardFault_Handler...
I recently got a prototype for measuring PM2.5 and I just couldn't figure out the principle of signal collection. Since the front-end chip model of the machine has been erased, I can't get the circuit...
I met a European friend not long ago. I happened to know that he always carried a portable notebook with him. Due to the wireless network problem, it is useless in China. I heard from my friend that i...