Lpc2000

>--- In lpc2000@yahoogroups.com, Rob Chapman <rob@n...> wrote:
>>    Now a word to the wary.  Some early chips contain a bug in the erase
>>    algorithm in the bootloader which causes the IAP call to not return
>>    sometimes requiring a restart of the micro.  This can be reproduced
>>    by alternately writing and erasing a sector of flash. At some point
>>    it hangs.  I sent off an email with the details of my tests to
>>    Philips and got a positive response where they acknowledged the
>>    problem and replaced all the chips we had.
>>
>>    Here are the parts that we are currently having problem with:
>>
>>     Part # : LPC2106B-CC0057-TP323B
>>     Bootloader Version 1.3
>>
>>     Part#: LPC2129FBD64-CC4761.00102-TP0404AY
>>     Bootloader Version 1.6
>>
>>  Philip's response:
>>     We have been experiencing difficulties with the flash array
>>     that are similar to the problem you have described. This problem is
>>     fixed (by modifying the bootloader) in later versions of the device.
>>     At what stage of development are you? If you would require new
>>     samples I can send them to you. Also, please give me the complete
>>     part markings and the bootloader version.
>
>Thanks for the info! I'm trying to figure out why when I erase then 
>write to flash, the MCU
>just dies. We exactly have the same 2106 part you mentioned. 
>Anyways, do you have the
>BootLoader version that is supposed to have the fix? Thanks.

  The guy that builds the boards for me is getting the replacement
  chips but I haven't got any new boards yet to verify.  As far as
  I know, we'll have to peal, toss and replace the micros on the
  boards we've already made (we've had one board in production since
  March).  I don't know if the bootloader can be replaced.

  Rob