1. If the MCU has a serial port peripheral, adding a level conversion chip, such as MAX232 or SP3485, will make it an RS232 or RS485 interface.
2. RS485 uses differential signal negative logic, +2~+6V
[i=s]This post was last edited by ddllxxrr on 2019-4-28 08:06[/i] The transplantation has been very annoying these days. I read the transplantation method in the book. I think it is very troublesome.
This article comes from WeChat public account: LinkedInWilliam Bengen, a scholar at the Massachusetts Institute of Technology, once proposed the famous 4% rule:
As long as the principal you withdraw f
Domestic chips are getting more and more attention now, and more and more products are starting to replace them with domestic chips. We must strongly support this. Recently, we are looking for a suita
After a quick look at the Polaris data sheet, I have some questions about the PLL clock and system clock.Simply speaking, the maximum output clock of PLL should be 96MHZThe maximum system clock is 120