[i=s]This post was last edited by HonestQiao on 2022-10-2 10:59[/i]This article is long and involves many knowledge points. You need to read it patiently. The following is the directory of specific co
I used evc to write a gpio output program, but when I opened the driver with wince system, it showed that the gpio driver failed to be opened. I don't know why. I used the s3c2440 experimental board o
As the title says, when I make the node not sleep, that is, when I do not add the POWER_SAVING compilation option, the node can collect temperature and humidity information normally. However, when I a
At first, I was engaged in low-power mobile phone chargers, and later I made a 30W switching power supply at most. I never had the opportunity to go to a switching power supply factory to really pract