[table] [tr][td]PWM1 is low level valid PWM3 is high level valid Initialize PWM(1023,0), hope both are low level, but in fact the low level is valid, the PWM will have a high level wave, then drop to
I think this way: After setting and starting the timer, the timer starts counting, and once the specified delay ends, the function is immediately called. But if the timer is not closed when the time i
STM32F103VEcan see the USB drive letter from the computer, and the files can be read out at a fast speed.But it just can't write to it, and it prompts a timeout error.I use USBlyer to capture packets,
There are two solutions on the Internet: One is the serial port problem, namely ttySAC0; the other is the clock frequency problem. I have ruled out both of these, but it still doesn't work! The proble
The application is very simple. The 2003 input is connected to the MCU IO, and the output is connected to a heating wire (the heating wire resistance is about 100 ohms). The current phenomenon is that