Can't erase Security bits

[jmlopes]

Hi Andy, Thanks for reply,

  The LPC915 don't use ISP. Use only ICP mode.

In menu: Options -> Advanced Options -> Security Tab
Uncheck "Protect ISP" is not possible. This option is disable when I select LPC915.

I choose another mcu and do your recommendations. Protect ISP was Uncheck. Then I go back and select LPC915. The Protect ISP is unchecked.
I try global erase, but the problem is the same.

  I think that my bridge have some bug. I contacted local office, and They contacted Bauke, that wrote the bridge code. He commented a similar problem, but I don't  have more news about it.
 
  Jorge
 

[jmlopes]

Hi friends,

  I don't have idea about to resolve this problem. So, I will remove the mcu.

   Jorge

[Andy Ayre]

Bauke didn't get back to you?

Andy

[jmlopes]

Hi Andy,

 No, who contact Bauke was local office. I don't know Bauke e-mail.

  Jorge

[Je Gold]

I am not sure if Bauke is till there?

Joe

[Andy Ayre]

I can confirm that Bauke left in October, so your local FAE probably sent him an email, but there won't be a reply.

Can you tell us what the following means exactly? Can you find out more details about this problem?

He commented a similar problem, but I don't  have more news about it

Andy

[jmlopes]

Hi Andy,

  When I was developing my LPC900 programmer (one year ago), I had exactly this problem: I couldn't to erase the LPC915 memory flash using Global Erase. FM showed this message:Operation Failed. (erase device).

  I reported this problem to local office from Philips and they contacted Bauke. They told me that Bauke commented a similar problem with the LPC, but I have no more details about it.
  I think that similar problem with FM means trying the command global erase in a LPC900 and this command failure.

   I didn't take care about it a one year ago. But, this problem happen again in this project.


    Jorge

[Andy Ayre]

What version of the NXP bridge code are you using? Is it modified?

Andy

[jmlopes]

Hi Andy,

The bridge code version is 1.7(I think). I modified this code to use in LPC921 as bridge.

  Jorge

[Andy Ayre]

Can you get an LPC935 and try an unmodified version of the bridge code?

Andy

[jmlopes]

I have a LPC936. I will to program with the unmodified version of the bridge code.

   Jorge