S32KのトピックRe: S32K148 write and read P_FLASH

S32K148 write and read P_FLASH

347996379 — Wed, 17 Apr 2019 02:24:49 GMT

I've programed P_FLASH,but reading P-FLASH failed,

I'm not sure which funtion reads P_FLASH?

• status_t FLASH_DRV_ReadOnce (const flash_ssd_config_t ∗pSSDConfig, uint8_t recordIndex, uint8_t ∗p -
DataArray)
Flash read once.
• status_t FLASH_DRV_ProgramOnce (const flash_ssd_config_t ∗pSSDConfig, uint8_t recordIndex, const
uint8_t ∗pDataArray)
Flash program once.
• status_t FLASH_DRV_Program (const flash_ssd_config_t ∗pSSDConfig, uint32_t dest, uint32_t size, const
uint8_t ∗pData)
Flash program.
• status_t FLASH_DRV_ProgramCheck (const flash_ssd_config_t ∗pSSDConfig, uint32_t dest, uint32_t size,
const uint8_t ∗pExpectedData, uint32_t ∗pFailAddr, uint8_t marginLevel)

Flash program check

or more?

Re: S32K148 write and read P_FLASH

lukaszadrapa — Wed, 17 Apr 2019 10:46:51 GMT

Hi,

if you want to just simply read the content of flash, use pointers. There's no such general function.

Mentioned functions FLASH_DRV_ReadOnce and FLASH_DRV_ProgramCheck are used for something different:

FLASH_DRV_ReadOnce - it is used for reading of Program Once field in IFR section of PFlash. It can't be used for normal PFlash.

FLASH_DRV_ProgramCheck - this command tests a previously programmed program flash or data flash longword to see if it reads correctly at the specified margin level.

Regards,

Lukas

Re: S32K148 write and read P_FLASH

347996379 — Thu, 18 Apr 2019 01:19:55 GMT

thanks ,I've worked it out.

S32K144 write and read P_FLASH

gopichauhan — Fri, 03 Nov 2023 05:51:29 GMT

hello can you pllease guide how to read data from flash (NVRAM) base address using pointer in s32k144evb-q100.