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Can anyone please help me how can I make a keyboard for my computer using 89C51. I must tell you the I want to make a device that can generate some keycodes itself on PS/2 and that will connect to the PC to perform some specific task for a little time only. i.e. there will be no KEY connected to the 89C51, it will work automatically and will type a few letters and then quit typing. I've seaarched the AT keyboard interfacing, and used the Mode 2 (9-bit UART mode) of 89C51 to implement the protocol, but I am unable to transmit any code to the PC. Please help.
I've two thousand PCs all same. And I want to change their Bios settings. The change will also be same for all PCs. Anyhow, I've made a keyboard, my problem finished.
"my problem finished."
I hope so!