S32K344 flash

[Neo1096]

hello, I have several questions about S32K344 flash:

1.pflash erases only 1000 times? Isn't the erasure of flash used to store code around 10,000 times in general?

2.Is the minimum programming unit of flash 1bit or 8bit or 32bit or 64bit? I can't find it in the datasheet. What exactly is the alignment of the other bytes? For example, if I write an 8bit and then write a 16bit, can I also write a 32bit in this 64bit storage area? Is the alignment of dflash and pflash the same?

3.Is it possible to provide a demo about RTD-based dflash simulate eeprom? If not, can you provide a FEE code idea or documentation?

4.I want to achieve power down save function, save 1KB of data to dflash, MCU power supply is 5V, circuit board input power is 48V, how much power down hold capacitor do I use?

thank you.

[lukaszadrapa · Accepted solution]

Hi @Neo1096 

1. You can find the specification in the datasheet:
https://www.nxp.com/docs/en/data-sheet/S32K3xx.pdf

2. This can be found in the reference manual:

3. You can find the demo in RTD in FEE folder:
c:\NXP\S32DS.3.5\S32DS\software\PlatformSDK_S32K3\RTD\Fee_TS_T40D34M40I0R0\examples\S32DS\S32K3XX\Fee_Example_S32K344\

4. This is application dependent, we do not have recommendation for this.

Regards,
Lukas