topic Re: LPC1114 - how to write to EEPROM in LPC Microcontrollers

LPC1114 - how to write to EEPROM

athmesh_n — Thu, 31 Jan 2019 07:44:07 GMT

CHIP : LPC1114/302

IDE : MCUXpresso IDE

Task is to store ID of device to EEPROM or any other non-volatile memory. But EEPROM is not found in LPC1114.

Is flash writing okay for this purpose?
Is there any other non-volatile memory (not found on UM) to write to?

Re: LPC1114 - how to write to EEPROM

soledad — Tue, 05 Feb 2019 18:16:45 GMT

Hi,

Like you mention there is no EEPROM in the LPC1114, however, I suggest to check the AN11008, this application note describes the implementation and use of a library that allows on-chip flash memory to be used for non-volatile storage, in a similar manner to EEPROM.

https://archive.eetindia.co.in/www.eetindia.co.in/STATIC/PDF/201103/EEIOL_2011MAR07_STOR_AN_01.pdf%3FSOURCES=DOWNLOAD

Have a great day,
Sol

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Re: LPC1114 - how to write to EEPROM

thiagorodrigues — Wed, 09 Oct 2019 05:04:25 GMT

I had the same problem... the solution was to add an external EEPROM (24AA00 or larger). The other option is to use the LPC11A14 which has an internal EEPROM. The pinout is different though, it requires a new board.

Regards,