8051 a/d 2500 ,lcd 128x64 demo program-8051 a / d 2500, lcd 128x64 demo program

此程序测试PCA负边沿触发的捕捉方式，测试前将P0.0同P1.6脚用跳线短接，当P1.6 送出6000个负边沿，在PCA就触发6000次负边沿捕捉-this negative PCA testing procedures triggered the 2500 catch, test before P0.0 P1.6 feet with a short jumper with Next, when 6,000 P1.6 send negative periphery, PCA in 6000 on