Keyboard interface using MCU

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avinash_h_dil@yahoo.com

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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
 


U mean interfacing SPI directly to MCU??

Thank you..
 

avinash_h_dil@yahoo.com said:
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??
Click to expand...

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
 

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

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