STM32L0 EEPROM programming with keil

[Ivanova Anastasiia]

Posted on July 04, 2017 at 07:57

Hello, everybody.

Hello everybody. I use Keil and ST-Link for programming STM322L073 Flash and EEPROM. I try to program them simultaneously but only Flash is written.

Is there any way of writing Flash and Internal EEPROM simultaneously?

BR, Anastasiia

[Imen.D]

Posted on July 04, 2017 at 15:13

Hi

Anastasia.Ivanova

,

You can have a look to the

FLASH

example available under

/external-link.jspa?url=http%3A%2F%2Fwww.st.com%2Fcontent%2Fst_com%2Fen%2Fproducts%2Fembedded-software%2Fmcus-embedded-software%2Fstm32-embedded-software%2Fstm32cube-embedded-software%2Fstm32cubel0.html

, g

et inspired from the example and modify it

to achieve your goal

:

STM32Cube_FW_L0_V1.9.0\Projects\STM32L073Z_EVAL\Examples\FLASH

Also, y

ou can found a full set of

EEPROM

examples within STM32CubeL4,which can help you as an implementation example to build your application on L0.

I recommend you to have a look to the “Flash program memory and data EEPROM (FLASH)�? section in your related STM32L0 product reference manual

/external-link.jspa?url=http%3A%2F%2Fwww.st.com%2Fcontent%2Fccc%2Fresource%2Ftechnical%2Fdocument%2Freference_manual%2F21%2Fbd%2F0f%2Fbd%2F1c%2F88%2F40%2Ff0%2FDM00108pdf%2Ffiles%2FDM00108pdf%2Fjcr%3Acontent%2Ftranslations%2Fen.DM00108pdf

.

Hope this helps you.

Regards

Imen

[Zt Liu]

Posted on July 05, 2017 at 13:36

hi, 

?????????.

In my STM32L053 device, I also got 2K eeprom @0808 0000 - 0808 07FF.

If I create a const array with absolute address, such as:

const uint8_t eepromArray[16] __attribute__((at(0x08080000)))

= {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F};

If I use Keil to flash, it will skip this area, for there is no programming algorithm at this section.

(for the moment, i don't know how to add or modify programming algorithm for keil).

But if I use the output hex file and ST-Link to program,

the eeprom is indeed programed. 

Even though the ST-Link Utility only shows the the read out data in flash region, but it's indeed programmed.

In ST-Link, you may manually modify the memory display range like this

you can also confirmed this by using software code or by STMFlashLoader Demo.

I prefer use software codes to erase/write/read the eeprom data,

it seems that the above way for initializing the eeprom area does no harm too.

Hope this helps you.

Zt.

[Ivanova Anastasiia]

Posted on July 05, 2017 at 13:43

Hello, dear Zhital Liu!

Thank's a lot for your advise. I also hope it helps me!

Best regards, Anastasiia

[Jhon Edwin Cordoba Papamija]

Posted on July 06, 2017 at 13:32

Also too programming the EEPROM from Keil IDE, in the options for targer->Debug->Settings->Flash Download

Add and select the EEPROM option.

[Zt Liu]

Posted on July 06, 2017 at 14:09

Great! That's what I missed! Thx,

Cordoba_Papamija.Jho

!