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PK51 snding a 0xA5 instead of 0x55 for autobaud

I am trying to use PK51 to program/flash P89LV51RC2 using ISP (In-System Programming). However, PK51 sends character 0xA5 instead of 0x55 ("U") during autobaud phase, which causes P89LV51RC2 to not enter into ISP.

Flash Magic works correctly and I can use it to flash P89LV51RC2 without problem.

Help is greatly appreciated.

0 ²erik malund over 14 years ago

Flash Magic works correctly and I can use it to flash P89LV51RC2 without problem.

then what is your problem

Erik
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0 X.J. Bao over 14 years ago in reply to ²erik malund

I need to use PK51 for development and debugging via ISP. Flash Magic can only flash the 8051 devices.
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0 Andy Neil over 14 years ago in reply to X.J. Bao

You can use FlashMagic from uVision.
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0 X.J. Bao over 14 years ago in reply to Andy Neil

I need to be able to debug and step through my program, not just flash the 8051 device. That is why I want to make PK51 work in ISP mode directly with P89LV51 devices.

Is there a way to configure PK51 to send a different byte during autobaud phase?

Thanks,
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