No response to ISP !

[Sharma]

Hello,

I am working with P89V51RD2 with FlashMagic.
I am able to ISP the micro. No issues.

I need clarifications on the following:

Accidentally I enabled SoftICE feature from
which point I am unable to download my appl.
to the micro.

How to disable this?

I tried to program the micro in the Universal programmer
(ESA-IUP for your info) but it gives an error
"Manufacturers Code unmatched"

Whatz the work-around?

Please throw some light.

Thanx in Anticipation,

[Jan Waclawek]

http://www.efton.sk/t0t1/unsoftice.htm

You should also complain at the manufacturer of you parallel programmer, this is a result of a flawed programming algorithm of the programmer.

Jan Waclawek

[erikm]

this is a result of a flawed programming algorithm of the programmer.

or most likely a missing software update.

Whe3n purchasing a programmer make sure it comes with free software updates, the chip you want to program maight not have existed when you bought the programmer.

Erik

[Jan Waclawek]

I wrote this because the same happened with me.

The programmer (LabProg48 by www.elnec.sk) SUPPORTED the P89V51RD2 and programmed/erased etc. it very well - until the SoftIce mode in bootloader version 4 was engaged. First I suspected problems in the chip, but after asking them, they discovered the problem (I don't know the details but they said a particular signal sequencing has to be implemented) - and offered me an immediate interim upgrade, as they have planned software upgrades monthly.

Of course the software upgrade was free, but I believe it is the standard today for parallel programmers.

Jan Waclawek