Which baudrate for SPI ?

[espruino-discuss2]

Posted at 2014-03-12 by JumJum

During development for ILI9341 display, I got timeout on SPI RX once a minute. Used baudrate 1000000 for first steps.
Right now the baudrate is set to 320000 and its working fine now (at least it works for some minutes now.
Is there any guideline or testing environment to select best baudrate ?
BTW, as far as I can see, speed of the application is the same with both baudrates.

[gfwilliams]

Posted at 2014-03-12 by @gfwilliams

Are you using the dev version that had the SPI fix (for cc3000) or just normal 1v56? 1v56 has a bit of a regression because one of the IRQs takes a bit longer than expected to finish, and that messes up SPI.

I think 1M is a good number. That'll work fine with the dev version, or 1v57 when released.