AVR-Chat

At 02:36 AM 26/01/2009, you wrote:
>i will try to disconnect the Vcc of the max202 and see

DONT!!!! You are only making things worse as the whole
chip will try to power up from the TX pin and the programmer.

You have most likely BLOWN up all of the programmers used
as they will be fighting with the output of the MAX 202.

If nothing has blown up then:

Either use a jumper to isolate the RX pin from the MAX202 during
program or use a 1K resistor (minimum) between the pin RX of the
M128  and the output of the MAX202.

Throw away ANYTHING that is between the programmer and the programming
pins of the chip.

Regards

John Samperi

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