How can i store some data into flexNVM or flash memory ?

josol — Sat, 31 Oct 2015 06:02:14 GMT

Hi.

settitng :

I am using MK64FN1M0VLL12 MCU , KDS 3.0.0, MQX V 1.1.1

Question :

I want to store some data into NVM or flash before Power down.

and right after Power on again , I want to read the data.and i added component successfully

and i found a useful post -> Re: Erasing Flash sectors in KL25 on the Freedom Board.

and i successfully write and read a data at first time. but it didn't work at second time

while debugging, i found that in UnhandledInterrupt, the process stoped.

can i get a answer about this problem? it's my code, and debugging window. i post the problem in MQX community because it may be problem in MQX interrupt

thank you very much

(someone told me that this was happening because the sector that i was trying to write to was not erased. the PE generated code does not erase the sector for me prior to writing to it, and i have to erase it myself but i don't know how can i erase the sector , should i edit MQX??)

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uint8 FromPtr[6] = {0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F};

uint8 ToPtr[6];

int OpStatus;

LDD_TError OpStatus;

LDD_TDeviceData* FLASH1Pointer;

FLASH1Pointer = FLASH1_Init(NULL);

FLASH1_Erase(FLASH1Pointer, 0xFFFFA, 0x6); //erase

do {

FLASH1_Main(FLASH1Pointer);

OpStatus = FLASH1_GetOperationStatus(FLASH1Pointer);

} while (!((OpStatus == LDD_FLASH_IDLE) | (OpStatus == LDD_FLASH_FAILED)));

FLASH1_Write(FLASH1Pointer, FromPtr, 0xFFFFA, 0x6); //write

do {

FLASH1_Main(FLASH1Pointer);

OpStatus = FLASH1_GetOperationStatus(FLASH1Pointer);

} while (!((OpStatus == LDD_FLASH_IDLE) | (OpStatus == LDD_FLASH_FAILED)));

FLASH1_Read(FLASH1Pointer,0xFFFFA, ToPtr, 0x6); //read

do {

FLASH1_Main(FLASH1Pointer);

OpStatus = FLASH1_GetOperationStatus(FLASH1Pointer);

} while (!((OpStatus == LDD_FLASH_IDLE) | (OpStatus == LDD_FLASH_FAILED)));

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Re: How can i store some data into flexNVM or flash memory ?

danielchen — Mon, 02 Nov 2015 06:23:59 GMT

Hi Jo Sol

Please check the following document for writing FlexNVM in MQX

MQX FlashX driver – how to write FlexNVM?

Regards

Daniel

Re: How can i store some data into flexNVM or flash memory ?

josol — Mon, 02 Nov 2015 22:54:26 GMT

Thank you very much

MQX Software SolutionsのトピックRe: How can i store some data into flexNVM or flash memory ?

How can i store some data into flexNVM or flash memory ?

Re: How can i store some data into flexNVM or flash memory ?

Re: How can i store some data into flexNVM or flash memory ?