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Memory storage , RxD/TxD

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jorgemstavares

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I need more memory (for data storage) in my application with a microcontroller ATMEL AT89C51ED2. I try to use a memory stick. The microcontroller have ports RxD/TxD to communicate but I don’t find interfaces that do the connection between RxD/TxD commands and memory stick. Can you help me?
 

You can use a secure digital card in SPI mode. Sample code (C code) can be found on Silabs site, but you can find similar projects to other microcontroler vendors or use google....
 

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