Author Topic: UCFG1 program problem 932a1  (Read 5599 times)

Bill

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UCFG1 program problem 932a1
« 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


Andy Ayre

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Re: UCFG1 program problem 932a1
« Reply #1 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.

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Bill

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Re: UCFG1 program problem 932a1
« Reply #2 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!