Can´t read/write to/from flash

Oliveira — Mon, 22 Mar 2021 13:17:54 GMT

Hi,

I am testing two MCUs on the same board, MK64FN1M0VLL12 and MK64FX512VLL12

KSDK1.3 and KDS and PE here (older project, can´t help to update) SW has this simple routine (from KSDK examples folder) to write and check some bytes in flash for sensor update: Can´t read/write to/from flash with MK64FX512 only works with MK64FN1M0:

void memoriaFlashLer(void) {
result = FlashInit(&flashSSDConfig);
g_FlashLaunchCommand = (pFLASHCOMMANDSEQUENCE)RelocateFunction((uint32_t)ramFunc , LAUNCH_CMD_SIZE ,(uint32_t)FlashCommandSequence);
destAdrss = flashSSDConfig.PFlashBase + (flashSSDConfig.PFlashSize - 6*FTFx_PSECTOR_SIZE);
//result = FlashEraseSector(&flashSSDConfig, destAdrss, FTFx_PSECTOR_SIZE, g_FlashLaunchCommand);
number = FTFx_PSECTOR_SIZE/FSL_FEATURE_FLASH_PFLASH_SECTION_CMD_ADDRESS_ALIGMENT;
for(marginReadLevel = 0; marginReadLevel <=0x2; marginReadLevel++)
{
result = FlashVerifySection(&flashSSDConfig, destAdrss, number, marginReadLevel, g_FlashLaunchCommand);
}
destAdrss = flashSSDConfig.PFlashBase + (flashSSDConfig.PFlashSize - 6*FTFx_PSECTOR_SIZE);
bufferFreqInv2[0] = *((uint8_t *)destAdrss);
}
//
void memoriaFlashEscrever(uint8_t valor) {
result = FlashInit(&flashSSDConfig);
g_FlashLaunchCommand = (pFLASHCOMMANDSEQUENCE)RelocateFunction((uint32_t)ramFunc , LAUNCH_CMD_SIZE ,(uint32_t)FlashCommandSequence);
destAdrss = flashSSDConfig.PFlashBase + (flashSSDConfig.PFlashSize - 6*FTFx_PSECTOR_SIZE);
result = FlashEraseSector(&flashSSDConfig, destAdrss, FTFx_PSECTOR_SIZE, g_FlashLaunchCommand);
number = FTFx_PSECTOR_SIZE/FSL_FEATURE_FLASH_PFLASH_SECTION_CMD_ADDRESS_ALIGMENT;
for(marginReadLevel = 0; marginReadLevel <=0x2; marginReadLevel++)
{
result = FlashVerifySection(&flashSSDConfig, destAdrss, number, marginReadLevel, g_FlashLaunchCommand);
}
bufferFreqInv2[0] = valor;
destAdrss = flashSSDConfig.PFlashBase + (flashSSDConfig.PFlashSize - 6*FTFx_PSECTOR_SIZE);
result = FlashProgram(&flashSSDConfig, destAdrss, BUFFER_SIZE_FREQ_INV2, bufferFreqInv2, g_FlashLaunchCommand);
}

I have created for both MCUs independent projects with PE so headers must be correct, right?

Is there any difference between MK64FN1M0 and MK64FX512 other than flash size? I mean, I read somewhere else that MK64FX512 does not have EEPROM and MK64FN1M0 has (or otherwise, I could misunderstood it)... Does that have anything to do with this read/write problem or there is something left to tweek into KDS/PE/code?

Marco

Re: Can´t read/write to/from flash

kerryzhou — Tue, 23 Mar 2021 04:51:15 GMT

Hi Oliveira,

Your mentioned SDK1.3.0 and the KDS is really very old now, if you are using the K64 SDK, I highly suggest you use our newest SDK which can be downloaded from this link:

https://mcuxpresso.nxp.com/

About the IDE, KDS is not updated now, and we are using MCUXpresso IDE to replace it, and the SDK is mainly based on the MCUXpresso IDE, IAR, MDK, etc.

You can download the MCUXpressso IDE from this link:

https://www.nxp.com/design/software/development-software/mcuxpresso-software-and-tools-/mcuxpresso-integrated-development-environment-ide:MCUXpresso-IDE

So, please use the newest SDK, and the K64 SDK already have the flash project, you can test it directly, please don't use the old SDK 1.3.0 and the KDS.

About the PE, you also can use the MCUXPresso CFG tool to replace it, PE is also not updated anymore.

Now answer your other questions:

Answer: K64FX has the flexNVM, flexRAM, which can be used as EEPROM, but K64FN, don't have flexNVM, can't use the EEPROM. Please use the newest SDK code:

SDK_2.9.0_FRDM-K64F\boards\frdmk64f\driver_examples\flash\pflash

If you use MK64FX512, you also can download that SDK, then you can find the related driver in this SDK folder:SDK_2.9.0_FRDM-K64F\devices

Wish it helps you!

If you still have questions about it, please kindly let me know.

Best Regards,

Kerry

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Can´t read/write to/from flash

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