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Topic: Determining which AVRS support external RAM (Read 1 time) previous topic - next topic

fungus


I can't see me activating another SPI chips' SS pin using the port expander


Why not?
No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

jtw11

I'm already using an SPI port expander, so I'll then be accessing two SPI devices at once?

fungus


I'm already using an SPI port expander, so I'll then be accessing two SPI devices at once?


Oh, the "port expander" is an SPI device. That would make it awkward, yes.

Still, there has to be a way to juggle it around and make it work. Can you add an extra 74HC595 or something...?




No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

jtw11

Yep, could be a pain :-D

I'll take a look re your suggestion - but I may just stick with my current solution and look at a 32 bit chip in a later version that'll inherently have more RAM, plus CAN capability etc.

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