AnsweredAssumed Answered

STM32CubeMX support for EEPROM emulation

Question asked by Mike Jackson on Jun 13, 2018
Latest reply on Jun 14, 2018 by Mike Jackson

stm32cubemx.eeprom emulation

I'm adding emulated EEPROM support to a project that is being built with the STM32F429ZITx processor.   I am able to include the sample code, and I am able to get it to work, but the only way I am able to preserve the data  after loading a newly built version (i.e. flashing a new image through the debugger) is to manually modify the flash.ld file to carve out a sector for EEPROM:

 

MEMORY
{
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 192K
CCMRAM (rw) : ORIGIN = 0x10000000, LENGTH = 64K
VECTOR (rx) : ORIGIN = 0x8000000, LENGTH = 16K
EEPROM (rx) : ORIGIN = 0x8004000, LENGTH = 48K
FLASH (rx) : ORIGIN = 0x8010000, LENGTH = 1984K
}

 

The issue I have is that every time I run the STM32CubeMX software to re-generate the code, it overwrites my changes.  Is there any configuration option in the cube software (Version 4.25.0) that will allow me to specify that I have an EEPROM section, and where I want to put it so that it doesn't overwrite it each time?

Outcomes