AVR-Chat

On Feb 13, 2005, at 6:53 AM, Valerij Avrealij wrote:

>>  You need a different model of regulator, else insert a diode between
>>  the existing regulator and the ISP connector.
>
> Which model of regulator you recommend? Where I must insert diodes?
> There are VCC, GND, MISO, MOSI, CLK,~RESET.

One diode in series between regulator output and the AVR Vcc. The AVR 
Vcc should connect directly to the ISP header's Vcc.

>>  Or you could power your circuit by normal means when using the ISP.
>>  This will keep your 7805 happy.
>
> Do you mean power through battery?

I don't know your circuit. If your device is normally powered with a 
battery thru the 7805, then, "yes." If this works then my diagnosis is 
probably correct and it would be worth your while to insert the diode 
above. Then you could program using the ISP power only.

--
David Kelly N4HHE, dkelly@HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.