Is cyusb3.sys supporting 1 mSec or more of isochronous transfer?
I want to data tarnsfer over 1msec in 1 time Isochronous transfer.
However I transferred data just 1msec.
I didn't use EP3.
Yes. You need to use EP3 or 7 if you are going for ISO, multi packet transfers.
Hi sai,I have next problem.
I tried to transfer the data of the following capacity inputted from GPIF-FIFO on isochronous.
1024(paket) x 10(burst) x 2(frame burst) x 8(1msec) x 10(10msec) = 1,638,400byte
However, windows will hang-up and it will be a blue screen.
Please let me know why.
attach blue screen
This might be due to your host controller not allowing you to allocate more bandwidth.
We can check the maximum bandwidth allocated by the Host to our device for these conditions:
1. Burst length: 15, single ISO packet
2. Burst length: 7, two ISO packets
3. Burst length: 5, three ISO packets.
You can also try for the above mentioned configurations.
Thank you sai,
>1.Burst length:15, single ISO packet
>2.Burst length:7, two ISO packets
>3.Burst length:5, three ISO packets.
More than the above-mentioned bandwidth is expectable on the present host controller?
If we ask for any bandwidth more than around 130MBps for ISO, host controller fails to do that.