Hi all,
This is the first time I've ever played with any microcontroller, and I'm stuck. The goal is to take my processor (I have an ADuC7026 eval board) and expand it with two external chips. I want to interface both, a better set of DACs to it as well as a DDS chip. For these expansions, I made sure to choose chips that are SPI compatible. For now, the question is where do I go from here? Snooping around, at first, I thought I would have to daisy-chain these devices, but it seems like that would be harder to deal with in code. However, it seems like I would be able to use a GPIO pin as a second chip select allowing for two independent slave selects. Is this true? And how would I go about assigning this functionality to a GPIO pin? I'd really appreciate any advice. Thanks in advance.
-Larry