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I found the problem I posted today. I am driving the chip select on two SPI devices with IO lines and not using the SS PB4 line. I was able to write one byte to the SPI but the second write operation would never complete. I had to set the unused SS PB4 to out. Now it works. Funny how it worked...
Hello
I am having a problem with SPI communication between an Atmega32 and a ad7705(SPI). It works on one atmega32 chip that was produced in 2006 but it does not work on a handful of other atmega32 and atmega32a chips all produced in 2010.
I have tried various init parameters including...
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