In message <199801231940.UAA28868@xs2.xs4all.nl>, wouter van ooijen
<wf@XS4ALL.NL> writes
>Like everyone else, I'm building a 16c84 programmer.
>I have a problem with the erase: the uChip documentation says that the
>erase sequence will erase all code, data and configuration.
>When the device is protected, this seems to be the case.
>When the device is not protected however, the code and configuration is
>erased, but the data is not.
>Is this normal behaviour, or am I doing something wrong?

I don't know about 'normal', but it's seems to be what usually happens.
To overcome the problem I eventually managed to implement the 'bulk
erase' feature - although the details in the app note don't work. If the
required code (in Pascal/Delphi) is of any help, let me know privately.
--

Nigel.

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