S32K3 Read/Write Flash with C40-Driver

[JoDo]

Hi,

I want to read and write some data to the internal flash of the S32K344. I use the C40 Dreiver for this and the example from the S32DS. If I do delete -> write -> read once, it works fine and I can see the change immediately in the memory browser. But the second time it seems to have no effect in flash memory. If I restart the code with the debugger, I can see the changed data in flash from the second write. 

What else needs to be taken care of so that each erase->write operation immediately writes the data to flash memory?

Regards,

JoDo

[Skannan]

what is c40? Is it standard or what?

[Guofred]

thanks for sharing this information. it looks the flash had been written successful in the second time after restarting the code with the debugger, i also think due to the software version or debugger setting cause this issue.  

[danielmartynek]

Hi @Guofred,

Since I can't reproduce it, I'm not sure I full understand the issue.

You read the flash with core and the debugger.

Do they both show the same issue, or is it just the debugger (memory view)?

Thanks,

BR, Daniel

[danielmartynek · Accepted solution]

Hi @JoDo,

I had to copy your code to C40_Ip_Example_S32K344 from RTD 1.0.0 2010_10 version as I don't have the older version that you use.

Anyway, without any modification, I can see the data in the memory after the second write.

What debugger do you use?

Can you update to the new RTD?

Regards,

Daniel

[JoDo]

Hi @danielmartynek and @Guofred ,

Thank you very much for the answer. 

I checked the code with the new RTD version and the flash could be read and written several times. It seems that the problem was indeed in the old RTD version.

The strange thing was that I could write several times and could also read the data in memory, but it stopped working once I ran the read function.

However, with the new RTD version everything works fine.
Tank you for the advice!

Regards,

JoDo

[danielmartynek]

Hi @JoDo,

Thanks for the update,

I'm glad it works now,

BR, Daniel