S32K142 Flash Write Error

[Ada_Lovelace]

Hi,All

I meet a problem about Flash Writing:

When I set the App address:0x0010000, when I erase and write the value  firstly, it worked.

But when I erase and write Flash secondly, it  causes errors. 

FTFC_FSTAT_CCIF and FTFC_FSTAT_MGSTAT0 set  1. Then I debug the memory view, the address shows "?".

The S32k142 address:

What should I do to solve the problem?

[danielmartynek]

Hello @Ada_Lovelace,

Which FTFC command fails with MGSTAT0 = 1?

Do you launch the command from SRAM / DFlash?

BR, Daniel

[Ada_Lovelace]

When  I write again， it  causes  MGSTAT0.I think it is something wrong with erase?

I do not launch the command from SRAM / DFlash, I use the code Flash address，could you tell me the right way to do the Flash about S32k142?

[danielmartynek]

Do you use SDK/RTD or your own code?

Can you share the project?

Anyway, the code that launches the FTFC Erase Sector or Program Phrase commands, cannot be in PFlash if the commands erase or program PFlash, because there is only one PFlash partition.

BR, Daniel

[Ada_Lovelace · Accepted solution]

Hi,Daniel

I debug the project,  Flash Erasing do not work,so when I program the Flash firstly,it may write value into the address.But it causes error when I write the different value into the same address.

So I check the Flash Driver Project and Bootloader,I find the different about clock.

So I check the clock about Flash, clock reference is 26.67Mhz, I  set the wrong value,so I change it.

Now it works.