S32K中的主题 Re: Programming data flash s32k3

Programming data flash s32k3

vusal — Tue, 28 Nov 2023 18:27:25 GMT

This is from AN13388.

{
register tFLASH_STATUS status = FLASH_PEG_ST;
register uint8_t *pDst = (uint8_t*)dst, *pSrc = (uint8_t*)src, *pTmp;
register uint32_t *pData;
uint32_t tmp;
while ((nbytes > 0L) && (status & FLASH_PEG_ST))
{
pData = (uint32_t*)((uint32_t)&FLASH->DATA[0] + ((uint32_t)pDst & FLASH_DATAX_MASK));
FLASH_InitSeq (pDst);
do {
tmp = 0xffffffffUL;
pTmp = (uint8_t*)((uint32_t)&tmp + ((uint32_t)pDst & FLASH_BYTES_MASK));
do {
*pTmp++ = *pSrc++; pDst++;
} while ((nbytes-- > 0L) && ((uint32_t)pTmp & FLASH_BYTES_MASK));
*pData++ = tmp;
} while ((nbytes > 0L) && ((uint32_t)pData & FLASH_DATAX_MASK));
status = FLASH_ExecSeq (FLASH_MCR_PGM_MASK);
}
return

I couldn't find reference to FLASH_BYTES_MASK and FLASH_DATAX_MASK. Any thoughts?

Thanks!

Re: Programming data flash s32k3

Robin_Shen — Wed, 29 Nov 2023 01:59:55 GMT

Sorry for the inconvenience we bring you!
It seems to be the code in the flash_test project of S32K3xxDRV_r1.4.

Best Regards,
Robin
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Re: Programming data flash s32k3

vusal — Wed, 29 Nov 2023 13:44:17 GMT

Hi @Robin_Shen,

Thank you very much for this. This answers my question.

One more thing, I couldn't find S32K3xxDRV_r1.4 example project in my IDE. Any thoughts?

Thanks!

Re: Programming data flash s32k3

Robin_Shen — Thu, 30 Nov 2023 00:25:46 GMT

This is internal bare metal drivers, which was done before RTD was decided. In case you want official ones, the RTD are only available.

Re: Programming data flash s32k3

vusal — Thu, 30 Nov 2023 14:01:40 GMT

Thank you!

Re: Programming data flash s32k3

vusal — Thu, 30 Nov 2023 16:57:33 GMT

@Robin_Shen ,

Any chance flash_test project available online?

Thanks!