Describe: keyboard scan, 4* 4 matrix keyboard, external serial port output 89s51

File list(time 2006082714~2009021103)(Click to check if it's the file you need, and recomment it at the bottom):
  key4X4.h

 To Search: 89s51 4*4 keypad external 4*4 size keyboa 

 [C51key.rar] - keyboard scanning procedure can be used to 4* 4 matrix keyboard scan. C Programming Language
 [micro-controllerboardprocedures.Rar] - handy compilation of the general procedures, and newcomers there. AT89S51 SCM experimental development board is cool computer service center specifica
 [AT89S51-serial.rar] - Very well-51 serial package, with data packets to send, receive validation. Especially with a serial port settings automatically calculate the functio

 [51-key.rar] - 51 keyboard scanning procedures, with the original scan different ways, this approach can handle multi-button pressed together.
 [uClinux_motor.rar] - uClinux under the motor control experiments, against Mr. Chong UP-TECH-3000 platform
 [XUNJI(0).Rar] - Trolley automatically tracing the source, c51 series, use 89s52 SCM two DC motor control
 [keyboardinputprocedures,forexample.Rar] - keyboard scanning process, through 8155 interface for scanning, is a rare good reference program
 [lcdNew.rar] - Single Chip LCD Driver LCD, realize multi-level menu of the source code, well, ah, ah, buddies test
 [Mod3.rar] - SCM At89s52 and computer serial communication, and by 232, could go to the PC Send
 [at89c51pro.rar] - AT89s51 serial device programming source code