Flash Magic Forum

In-System Programming Support => P89V51Rx2/P89LV51Rx2 => Topic started by: Barry Grieves on January 23, 2005, 10:15:11 PM

Title: Programming P89V51RD2
Post by: Barry Grieves on January 23, 2005, 10:15:11 PM
We are trying to use P89V51RD2 in place of P89C51RD2H. With Flash Magic, the 'V' device verifies after programming, but the device does not operate correctly in our product. Can anyone suggest anything I need to check? I am selecting 6 clocks per cycle.
Title: Re: Programming P89V51RD2
Post by: Jan Waclawek on January 24, 2005, 01:48:57 AM
If your device has connected the Rx pin and receives a stream on it (it may be unintended- e.g. when using it as a general purpose input) and if it sees an 'U' within this stream, it may (spuriously) enter the ISP mode.

Jan Waclawek