USB ?????

Hi all, this days i m working with MEGA ADK kit. in this kit i have USB host port which connected with MAX3421e .... so i have some queries 1. I have to plug external power supply for USB communication????????? 2. how could i can see the USB data or can say USB OUTPUT. i think there must be tool for USB simulation.

  1. It's probably a good idea, unless you know what you have attached to the usb host port won't try and draw power. If you attach a phone, for example, it will try and draw current to charge. If you attach a camera, it probably won't.

  2. Haven't we been through this? I couldn't find a usb simulator, when I looked last time. I did find a usb loopback box though, which I posted last time.

thanks what i have to for this error... OSCOKIRQ failed to assert This is the error of frequency ...... so could u tell me what i have to do for this

i think this problem has reasons 1. PPL function is not what i have to for this

Try Googling. There seem to be a lot of others having the same problem.