AVR-Chat

On Sun, Jan 17, 2010 at 2:32 AM, Kenny M. <kenny782@yahoo.com> wrote:

>
>
> If I don't connect reset to vcc ISP gives me the blinking orange light.
> The same happens if I connect it to vcc with no resistor
>
>
Not sure I quite understand that.

Initially, you should hook up the chip to the isp signals.

mosi-mosi
miso-miso
sclk-sclk
reset-reset
gnd-gnd
vcc-vtg

reset also goes to vcc via 10k resistor (not necessary for all avr device
types but won't hurt)
NO other circuitry should be connected to any of the signal lines (at least
for now).
provide proper power (vcc and ground).

in avrstudio,
set isp programming speed to lowest possible setting
set correct device
set low voltage isp mode

If at this point you can't read the signature bytes, you've got:
bad wiring
bad chip
bad power
bad isp programmer

time to break out the scope.

-- 
carl
--------------------------------------------------------
Henry Carl Ott   N2RVQ    hcarlott@gmail.com


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