[backcolor=rgb(239, 245, 249)][size=14px] [/size][/backcolor] [backcolor=rgb(239, 245, 249)][size=14px]A long time ago, I saw a senior on the Internet using a constant temperature heating table to sol
In the circuit of single-chip parallel control display, 8255A is used as parallel expansion chip to make a 2*8 keyboard digital display circuit that directly drives P0 and P1 as bit lines. Which exper
Due to work reasons, I have come into contact with many foreign high-power switching power supplies. I would like to share them with you to see what we can do with foreign designs.[[i]This post was la
Hardware Features: No. Name Description 1 CPU SamsungS3C2440A, 400MHz main frequency2 ROM 1MB Nor Flash64MB Nand Flash 3 RAM 64MB SDRAM 4 LAN one 10/100M Ethernet , RJ-45 interface5 SERIAL two DB9 sta