topic Re: 4-bit ECC on LPC3250 in LPC Microcontrollers

4-bit ECC on LPC3250

speterson — Thu, 20 Sep 2018 18:28:45 GMT

Is there a 4-bit ECC implementation for LPC3250?

I am working with a new NAND flash with the NXP LPC3250. Previously a 1-bit ECC NAND was used and we moved to a 4-bit ECC NAND. It does not look like my U-Boot source supports 4-bit ECC. Does NXP have an implementation or example of U-Boot with 4-bit ECC support?

Re: 4-bit ECC on LPC3250

jamesbone — Wed, 24 Oct 2018 16:14:46 GMT

Hello Serah,

Unfortunately No, we do not have such solution for the LPC3250 since the device it is Legacy so the implementation for NAND flash with 4 bit ECC it is not available.

I apologize for this inconvenience.

Re: 4-bit ECC on LPC3250

juan_castellano — Fri, 10 May 2019 20:08:12 GMT

Hello speterson jorge_plascencia jamesbone:

I have the same question, and am wondering what alternate approach was taken in Serah's case.

We have a need to implement 4-bit hardware ECC on a large block SLC NAND Flash because we are having issue with our software ECC. If 4-bit ECC is not available, why does the UM10326 LPC32x0 manual indicate that the MLC controller can support 4-bit ECC? We are trying to switch from the SLC to MLC controller for normal operations for this 4-bit ECC feature. Are there any resources/code examples you can point me towards?