Using SPIFI peripheral with a SPI RAM chip

[lpcware]

Content originally posted in LPCWare by jhall0819 on Tue Dec 08 09:05:34 MST 2015
Hi,

Is it possible to use the SPIFI peripheral with a SPI serial SRAM chip (Microchip 23LC1024) instead of a Flash chip. I have a board and firmware working with a SPI flash and now have a new application requiring more RAM than is available on the LPC4357.

Any ideas will be greatly appreciated.

Thanks - Jim

[lpcware]

Content originally posted in LPCWare by mc on Sun Dec 13 11:59:06 MST 2015
Hi Jim,
I briefly looked into datasheet and think that SRAM can be mapped into memory mode and LPC4300 can read it. However in memory mode you won't be able to write in this memory map area. You will have to use command mode.