Boot from non-quad SPI flash

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by pierre on Wed Sep 17 02:22:21 MST 2014
Hello !

I need some extra I2S pins on LPC4330, so I'd like to use the SPIFI flash in simple SPI mode (not quad mode).

I made a simple test : unsoldering the flash SIO2 and SIO3 pins on my LPC4330 Xplorer board, and using pullups to the flash's VCC.

It did not boot. So, I resoldered them and it works again.

Is this supported ? I don't care if flash access is a little slower as all my code runs from RAM.