Flash Magic Forum

In-System Programming Support => LPC9xx/LPC9xxx => Topic started by: Bill on December 20, 2004, 01:59:05 PM

Title: UCFG1 program problem 932a1
Post by: Bill on December 20, 2004, 01:59:05 PM
I can not get flash magic to program the UCFG1 bits starting
at FF00. I found a reference about a previous version giving a warning when this was attemped but now it seems to be completely disabled.

In the hex file I see the code

:01FF000060A0

but it does not change the clock selection bits.


Am I  missing something?

Thanks for you help

Bill

Title: Re: UCFG1 program problem 932a1
Post by: Andy Ayre on December 20, 2004, 02:04:54 PM
The UCFG1, etc. start at FFF0H. See the Keil start900.a51 file for a breakdown of the bytes and their locations:

http://www.keil.com/download/files/start900.a51

Note that Flash Magic only programs the UCFG1 value and the security bits. All other locations are ignored, because it would be too easy to mess up your device.

Title: Re: UCFG1 program problem 932a1
Post by: Bill on December 21, 2004, 08:48:36 AM
Andy,

Great information and I was able to change my location from FF00 to FFF0 and it works straight away. I was provided a earilier version of the same file by our Philips rep but it used the FF00 address instead of FFF0? Acqura has the correct info on their site but I did not notice the address change before you pointed it out.


Thank you for your Quick response.

Merry Christmas!