Problem with receiving SetAddress from ISP1581 USB

[al78]

ISP1581 problem

Hello all,
I have a problem with the Philips' ISP1581 USB.
When the host initiates the recognition of the USB, I'm receiving the Setup interrupt in which I'm sending the device descriptor. Immediately after that I'm receiving reset interrupt.
According to the specification, after this sequence, I have to receive SetAddress, but the host rerties two more times the above described and the result is that the device is not recognized.
Has anyone got this problem before?
I will be very glad if someone give me a clue about the situation.

Best regards to all

 

[Ward23]

Re: ISP1581 problem

Hello Al78,

I've been experiencing exactly the same problem with the Philips ISP1581, and was wondering whether you had resolved the issue?
Any help would be greatly appreciated.

 

[madhun]

Re: ISP1581 problem

Hi All

I am also using isp1581 with 8051. I have to interface these i hope you are working on it . I need support. I have to initilaise the chip using that so how to write a code in C for that and what is the initializing sequence for that. If you can assist me.
Thanks
Madhu