Keyboard interface using MCU

[avinash_h_dil@yahoo.com]

Dear Friends, m supposed to design keyboard using MCU. Data fetched from keyboard has to be sent through SPI. now my question is, is there any need to use UART to TX/RX data through SPI??

Kindly answer....
Thanks in Advance...
Avinash

 

[avinash_h_dil@yahoo.com]

Well my advice is that any one wuld work fine. Since u aare interfacing a keyboard with the microcontroller then u can just make of the SPI pins instead of the rx/tx.

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Well my advice is that any one wuld work fine. Since u aare interfacing a keyboard with the microcontroller then u can just make use of the SPI pins instead of the rx/tx.

U mean interfacing SPI directly to MCU??

Thank you..

 

[bigdogguru]

m supposed to design keyboard using MCU. Data fetched from keyboard has to be sent through SPI. now my question is, is there any need to use UART to TX/RX data through SPI??

Typically an SPI hardware interface is provided by a dedicated hardware peripheral module which provides Synchronous Serial communications.

The UART is an Asynchronous Serial communications peripheral module.

What specific microcontroller are you using in your design?

BigDog

 

[avinash_h_dil@yahoo.com]

C8051F120 of Silicon Laboratories make...


Thank you,
Avinash

 

[pjmelect]

You should do this by controlling the port pins and NOT by using a UART.

 

[avinash_h_dil@yahoo.com]

You should do this by controlling the port pins and NOT by using a UART.

Ok Thank you.