Go Down

Topic: Arduino ISP (Read 1 time) previous topic - next topic


Aug 08, 2011, 09:10 am Last Edit: Aug 08, 2011, 09:22 am by cbhargava Reason: 1

I have been experimenting with Arduino as ISP. I have an Arduino setup as programmer (following: http://arduino.cc/en/Tutorial/ArduinoISP).

On my target I have a blank Mega8 with following connections (total 6 connections):

ATMEGA8 Pin (Target) - Arduino Pin (programmer)
19 - 13 ----[1k]-----|led>----gnd
18 - 12
17 - 11
1 - RST
7 - +5v
8 - gnd

I have a 3.58MHz resonator connected to the target Mega8 on pin 9 & 10. I have a LED connected on the target micro-controller pin 19 with a 1k resistor to ground.

As a test, when the source arduino is programmed with blink example, the target pin13 LED blinks but if I move the microcontroller from arduino to the target socket, the LED doesn't blink.

Do I need to provide a pull-up for reset on the target? I don't have the pull-up there at the moment.


Chetan Bhargava


Reset must be high on the reset pin. Putting an external pull-up won't kill it. You may want to see if the Reset pin in high or low on the chip you want to program.
This... is a hobby.


I found the problem to be my resonator on the target board. It all works fine after the replacement.



Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131