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Flash File system on Nand Flash memory LPC1788

Question asked by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by madD7 on Tue Jun 11 21:41:22 MST 2013

I want to implement Flash File system (or any other file system) on Nand Flash memory.

Controller: LPC1788

Tool Chain: Keil

NAND Flash: Samsung K9F1G08U0C - 1Gb

I tried to search the Keil\ARM\RL\FlashFS\Drivers for Nand Flash drivers (I had used the SPI Flash drivers for LPC1768 form this folder).

But, Nand Flash drivers of LPC1788 are not available. So i thought of building my own drivers using the LPC247x drivers as reference.

I also have external (256Mb) SDRAMs interfaced with the board, and is working fine.

The questions are:

1. can i interface both the memories together?

2. What is Address Mirror? (User Manual doesnt elaborate the topic. Could not find anything relevant on google also)

3. Will i have to reinitialise (or change the settings) of EMC registers, everytime i switch the access between SDRAM or Nand Flash? (Thus, i write the drivers accordingly)