I use 51, can I control the speed of the stepper motor by sending signals to the CLOCK terminal of L297 at different timings? How can I use multiple speed timers? Is it enough?
[url=http://www.toutiao.com/a6369529568688390402/]Original address[/url] [align=left][color=#222222][font="][size=16px]Please think about what the process is when you draw a PCB?[/size][/font][/color]
A question about the ucos event flag group: Can I call OSFlagPend on the same event flag group variable in multiple different tasks? And then call OSFlagPost in one task to satisfy all the waiting tas