AVR-USB on an STK500?
Posted: Mon Apr 13, 2009 6:14 pm
Hi guys -
I'm trying to get AVR-USB running on an ATMega16 at 20MHz while on an STK500. Does anyone know if AVR-USB has ever been successfully run while on an STK500? I noticed the C64 keyboard uses the STK500 as an external programmer, but the project isn't running on the board - it's running off the power supplied by the USB cable. Tonight I'm planning on building the circuit on an external board to ensure it works, but it would be massively convenient for me to be able to debug and test the software from the STK500.
Maybe my problem is just a simple wiring issue - since I'm not using the VCC line of the USB cable, what should I do with it? I've tied the GND line of the USB cable to the GND on the STK500 - the VCC line from the USB cable is currently unconnected and unused.
Thanks!
I'm trying to get AVR-USB running on an ATMega16 at 20MHz while on an STK500. Does anyone know if AVR-USB has ever been successfully run while on an STK500? I noticed the C64 keyboard uses the STK500 as an external programmer, but the project isn't running on the board - it's running off the power supplied by the USB cable. Tonight I'm planning on building the circuit on an external board to ensure it works, but it would be massively convenient for me to be able to debug and test the software from the STK500.
Maybe my problem is just a simple wiring issue - since I'm not using the VCC line of the USB cable, what should I do with it? I've tied the GND line of the USB cable to the GND on the STK500 - the VCC line from the USB cable is currently unconnected and unused.
Thanks!