Objective Development Forums

Interesting. Anyway, I bought and tried a 12MHz crystal without success. Then I changed the circuit to work on 3.6V (from the port with two serial 1N4148 diodes). This time it worked! I haven't tried to find out whether it was the zeners or the cable or something else entirely that was the culprit. ...

Correct I was referring to the zeners. I read that as a 168, I'm not sure about the 16. Sorry for the mix up. May want to check if the zeners are 1 watts, if so try 1/2 watts. Yes an external hub. I read about the capacitance problem with the zeners. My zeners are the tiny 1N4148-lookalikes, so I i...

I'm not sure if you said you DO have a external crystal or Dont? But... I'm told you will need a external crystal as USB has some pretty picky timing. Also make sure to use 1/2 watt diodes with the mega168. The surface mount diodes very commonly dont work. I had this issue going on for a long time ...

Hello, I'm new to AVRs and am trying to use V-USB for a joystick project: Current hardware: ATmega16 16PU 16Mhz crystal Fuse, low: 0x9F, high: 0xC9 Bus powered 5V circuit with 3.6 zeners Self-made vero-board-based development board 6 foot usb cable with shield grounded to board ground USBasp program...