AVRUSBBoot and Mac Os X

mbanzi · Post by **mbanzi** » Tue Jul 01, 2008 2:46 pm

Hello

I'm trying to test AVRUSBBoot on an ATmega168 board. The device is recognised when I use USB prober and name plus ids are correct.

when I use avrdude 5.5 to try to connect to it I get "could not find USB device "USBasp" with vid=0x16c0 pid=0x5dc"

I've looked around and realised that some people had that on windows but nobody mentions Mac Os X (and linux)

anybody can shed some light on this?

massimo

Post by **christian** » Mon Jul 07, 2008 5:28 pm

When you use the original firmware, did you realize that you must prepare the device with a hardware reset in order to activate the boot loader? And the boot loader exits after each connection by avrdude.

Other than that: Did you check with USB Prober that the USB IDs are those expected by avrdude?

mbanzi · Post by **mbanzi** » Tue Jul 08, 2008 11:00 am

Hello

Thanks for the reply,

The test was done after a powerup with a specific pin activated (bootLoaderCondition)

after that I could see through USB prober that the VID and PID where the ones expected by avrdude.

I'll do more tests

thanks

massimo