...use AT89c51 to control the PC-keyboard? I know the...

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Question by Kieu Huu Thu
Submitted on 4/13/2004
Related FAQ: 8051 microcontroller FAQ
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How to use AT89c51 to control the PC-keyboard? I know the 8048 in keyboard send 11bit/package for serial communication.But the 8051(at89c51) only has 8(9)bit/package for serial communication. Please help me!

Answer by majd
Submitted on 4/22/2004
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8048 use only serial format and doesnt use rs232 protocol "means there isnt any baud rate" do u understand me or not? you have to use Int0 or int1 for counting clock of 8048

Answer by alipouran_alireza
Submitted on 6/3/2004
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How to use AT89c51 to read the ad7730(serial eeprom)? please send me help softwer for read 24 bit a2d with high speed . Please help me!

Answer by rehan
Submitted on 8/2/2004
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how i can use the interrupts of 89c52 micro-controllers and send me the link where i could get a handy knowledge of these interrupts

Answer by swk
Submitted on 9/5/2004
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PC-Keyboard does not uses UART,instead it uses like serial shifting. so you should count the no. of clock pulses to do this you can either use interrupt or continuous polling method. normally clock pulse width will be from 45uS-60uS. The data sequence will be like one Start-Bit, 8 data bits, 1 parity, one stop bit. you can even refer this pdf doc "http://www.atmel.com/dyn/resources/prod_documents/doc1235.pdf" shows the implementation using 'C' for AVR micro controllers.

Answer by aan
Submitted on 12/24/2004
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i want to know connection at89c51 with ppi 8255

Answer by Anil Kumar Srivatsav
Submitted on 3/21/2005
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i have a question - in weather forecasting, in the simulator of doppler weather radar, we use a microcontroller (AT89C51) for feeding Direct Digital Synthesizer. why is more preference given to 89C51, if other microprocessors can provide the same functionality.

Answer by hosein
Submitted on 5/29/2005
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i need to example code for read ad7730 A/D converter with 8051 micro controller

Answer by sajad
Submitted on 7/16/2005
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please help me!I want connect 80c51 to PC_keyboard

Answer by egtdre
Submitted on 10/24/2005
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Answer by parag
Submitted on 11/2/2006
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ahmednagar

Answer by jeya
Submitted on 1/4/2007
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HOW TO INTERFACE EXTERNAL NAND FLASH MEMORY WITH AT89C51 PROCESSOR PLEASE SEND OUR RELATED REQUIRMENT SOURCE CODE

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