EEEPROM S32K144

[Alex19]

Hello, 

Could you help me please with my project. I need to use the memory of the board S32K144. It means i need to receive the data by uart, write into the memory and after read. I saw the Example_S32K144_EEEPROM_usage, I take the function EEE_Write_ByteArray(), I can read the data, but i lose them after disconnect the board from power 12V. And actually I would like to use the function of FLASH, for example, FLASH_DRV_EEEWrite().

I attached my project. 

[Senlent]

Hi@Alex19

There is a sample code "flash_partitioning_s32k144" in SDK.

The examples does the following operations:
- Partitions the flash
- Configures FlexNVM region as EEPROM
- Erases flash
- Programs flash
- Write data to EEPROM.

So,please refer to this example.

BR!

     Jim,

[Alex19]

Hi, 

Thank you for your support, but unfortunately it doesn't work. Can you guide me to the right direction, please. so my steps are next:

1. Initialization of flash 

2. Configure FlexRAM as EEPROM 

3 . Write data to EEPROM

4. Read data 

So my code 

- FLASH_DRV_Init(&Flash_InitConfig0, &flashSSDConfig);

- FLASH_DRV_DEFlashPartition(&flashSSDConfig, 0x02u, 0x08u, 0x0u, false, true);
- FLASH_DRV_SetFlexRamFunction(&flashSSDConfig, EEE_ENABLE, 0x00u, NULL);

- FLASH_DRV_EEEWrite(&flashSSDConfig, flashSSDConfig.EERAMBase, sizeof(Array), Array);

- memcpy(SendArray,&flashSSDConfig.EERAMBase,sizeof(SendArray));

What i'm doing wrong? 

BR

[Senlent]

Hi@Alxe19

It works fine on my side,so please check again.

BR!

    Jim,

[Alex19]

I have this results

[Senlent]

Hi@Alex19

Hi  Alex,

    Please set some breakpoints, 

    I tried again and the result was the same.

I‘m using:

IDE: S32 Design Studio for ARM 2018 or Keil

SDK:S32K1xx RTM SDK 3.0.0

Hardware:S32K142EVB.

BR!

      Jim,

[Alex19]

Hello,

Thank you for your reply. Can you tell me please, is it normal, when i debug the project i have the expected result like this 

but when I click the button Resume F8, i have this 

BR

[Senlent]

Hi@Alex19

Hi Alex,

   you can try single-step debugging to find the reason，I can't judge the root casue based on the picture you provided.I have tried several times and there is no such problem.

BR!

     Jim,

[Alex19]

hi Jim,

I tried with single-step debugging and it works fine, it means I go step by step until the end of the code

(Debug ->Debug Configuration -> flash_partitioning_s32k144_debug_flash_premicro -> Step over->I push "step over" until the end of the code).

But if I run full-speed running mode it doesn't work (Debug ->Debug Configuration -> flash_partitioning_s32k144_debug_flash_premicro -> Resume)

Maybe there is some configuration? 

[Senlent]

Hi@Alex19

      The debugger may not be able to read the contents of the memory when running at full speed,so breakpoints and single-step debugging are necessary.