I dont know anything about Atmega32's but when you see that error its something in the USB side of the electronics. Most commonly the diodes. For example 1/4 watt diodes do not work in atmega158's and require 1/2 watt diodes. Also if the source code uses timers, these timer location may change from chip to chip. Check the data sheet for register location that may have moved. "Migrating from ATmega32 to ATmega32A" is going to tell you just that, so where is the disconnect? What is not clear? Without the source it may not be possible to switch chips.
Also remember Unknown Device, is not an error, its a general issue. So you have to hunt down the problem and fix it, no one can guess it for you.
Also remember Unknown Device, is not an error, its a general issue. So you have to hunt down the problem and fix it, no one can guess it for you.
