About memory dump of workflash in CYT2B98

[WonjinHan]

Dears

Now I’m using CYT2B98 to check out the memory condition in virgin like work flash.
When seeing the memory dump in the start from 0x14000000 (WorkFlash) with run time debugger like Trace 32,
It doesn’t have fixed values and shows continuous variable values in attachment (Moving file : 4.WorkFlashCondition_InVirgin.mp4.zip)
Could you tell me why it works like that ?

Of course when I use minipro4 to do memory dump in workflash (from 0x14000000 to 0x1401 7FFF), in each memory dump command execution, dump file has different data.

Please give us your explanation what happened in side of MCU.

Best regards,
Wonjin Han.

[Ashish · Accepted solution]

Hi,

It appears that you are trying to read erased WorkFlash data- this is not permissible by design. You need to program the erased sector first only then read is possible, else the debugger will give spurious/random data. Kindly refer TRM for more details.

Thanks,

Ashish

[WonjinHan]

Hello Ashish. 

Thank you for your answer and have a nice weekend.

Best regards,

Wonjin Han.