[sdiy] SPI comms - how fast is reasonable?

[Antti Huovilainen]

On Fri, 5 Mar 2010, Tom Wiltshire wrote:

> What do I need to watch out for trying to send >1MHz (up to 10MHz in theory) 
> SPI clocks and data around? Is it realistic to expect this to work on a 
> breadboard?
> How long can flying wires between transmitter and receiver be?

This depends on how good the grounding is and how long the current loop 
is. Have you tried scoping the signal at the receiver end?

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova