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once NVL question
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once NVL question

Schurtz posted on 12 May 2011 1:01 AM PST
Top Contributor
23 Forum Posts

Hi:

I configured dubug port disabled, flash full protected, but in HEX file generated, once NVL bytes are still all 0.

How to  make sure once NVL bytes to be correct keys?

Thanks.

B.R

 




Re: once NVL question

vvsk posted on 12 May 2011 04:26 AM PST
Cypress Employee
25 Forum Posts

Hello,

The support to make the device one time programmable by writing the correct key to WO Nvl is not yet there in PSoC Creator. That is the reason the hex file generated will always have these WO Nvl bytes set as zero.

I have tested this feature once by writing the correct key to WO Nvl. The part cannot be programmed thereafter. Do you want this super-security feature immediately? If really urgent, we can support your cause through a technical support case.

- Vivek



Re: once NVL question

Schurtz posted on 12 May 2011 06:42 PM PST
Top Contributor
23 Forum Posts

Ok Thanks. It's not urgent,  just make clear for it,  I just thought maybe had missed something on configuration.

Thanks very much.

B.R






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