Multilink Connection Problem S12UF32

[srgrace09]

I have the BDM setup correctly (according to P&E) and the Multilink can't get the frequency of the device. Is anyone else having a problem, or do I need to contact P&E directly?

Thanks for any help. 

[srgrace09]

I am using Rev.A of the P&E Multilink. I had it working earlier (with an IO_DELAY_CNT of 16). After trying to install a program onto it, I believe the secure bits (bytes) were written, and from what P&E said, this is the only chip that can't be unsecured? I'm in a real bind, and need an answer quickly. Is there a way I can unsecure it?

[kef · Accepted solution]

Did you look at UF32 erratas? If not, then read maskset number from your chip case, like 1L47S, and go here

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?ProdMetaId=PID%2FDC%2FS12UF&isAdvanceSearc...&

MUCts01498 errata has YES in workaround column, but in fact you can't unsecure secured chip over BDM.

[srgrace09]

Thanks for the input! I'll look at it and see what I can do with it. Luckily I have a backup chip for a case like this, so now I know how to get around this silly issue.