File list (Check if you may need any files):
1602显示键值\c语言\LCD1602P1Key
............\.....\LCD1602P1Key.c
............\.....\LCD1602P1Key.hex
............\.....\LCD1602P1Key.lnp
............\.....\LCD1602P1Key.LST
............\.....\LCD1602P1Key.M51
............\.....\LCD1602P1Key.OBJ
............\.....\LCD1602P1Key.Opt
............\.....\LCD1602P1Key.plg
............\.....\LCD1602P1Key.Uv2
............\.....\LCD1602P1Key_Opt.Bak
............\.....\LCD1602P1Key_Uv2.Bak
............\.....\STARTUP.A51
............\.....\STARTUP.LST
............\.....\STARTUP.OBJ
............\排线连接方法.txt
............\接线图.jpg
............\汇编\lcd+button
............\....\lcd+button.hex
............\....\lcd+button.lnp
............\....\lcd+button.M51
............\....\lcd+button.Opt
............\....\lcd+button.plg
............\....\lcd+button.Uv2
............\....\lcd+button_Opt.Bak
............\....\lcd+button_Uv2.Bak
............\....\lcd1602jz.asm
............\....\lcd1602jz.LST
............\....\lcd1602jz.OBJ
............\矩阵键盘电路图.bmp
............\c语言
............\汇编
1602显示键值