Hello all, I have written an ISR to receive data from another Arduino. I am aware of the fact the atmega328 can perform this with hardware, but I am exploring the possibility to save the hardware pins to be used in master mode. Up till here the code works (on the receiving end) with SPI_CLOCK_DIV32…

Optimize "Software-SPI-Slave-Mode" ISR

CaptainJack May 12, 2014, 6:39am 11

@David: right, that makes sense! Thanks !

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