S32KのトピックEEEPROM S32K144

EEEPROM S32K144

Alex19 — Wed, 24 Nov 2021 15:11:07 GMT

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.

Re: EEEPROM S32K144

Senlent — Thu, 25 Nov 2021 07:16:01 GMT

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,

Re: EEEPROM S32K144

Alex19 — Thu, 25 Nov 2021 21:05:53 GMT

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?

Re: EEEPROM S32K144

Senlent — Fri, 26 Nov 2021 09:54:36 GMT

Hi@Alxe19

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

Senlent_0-1637920248550.pngSenlent_1-1637920327565.png

BR!

Jim,

Re: EEEPROM S32K144

Alex19 — Fri, 26 Nov 2021 13:47:57 GMT

I have this results

Alex19_0-1637934469165.png

Re: EEEPROM S32K144

Senlent — Mon, 29 Nov 2021 07:04:52 GMT

Hi@Alex19

Hi Alex,

Please set some breakpoints,

I tried again and the result was the same.

Senlent_0-1638168835043.png

I‘m using:

IDE: S32 Design Studio for ARM 2018 or Keil

SDK:S32K1xx RTM SDK 3.0.0

Hardware:S32K142EVB.

BR!

Jim,

Re: EEEPROM S32K144

Alex19 — Mon, 29 Nov 2021 08:46:23 GMT

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

Alex19_0-1638175481416.png

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

Alex19_1-1638175557335.png

Re: EEEPROM S32K144

Senlent — Mon, 29 Nov 2021 09:26:54 GMT

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,

Re: EEEPROM S32K144

Alex19 — Mon, 29 Nov 2021 11:10:18 GMT

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?

Re: EEEPROM S32K144

Senlent — Tue, 30 Nov 2021 09:35:55 GMT

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.