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USB development - transfer a minimum of 5.5Mbps using 1.1

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brmadhukar

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Hi,
Can anyone provide me help on USB1.1 or 2.0 development. I need to transfer a minimum of 5.5Mbps using 1.1. I have used Scanlogic SL811 usb controller and JUngo drivers. I am unable to do that rate.

Any schematic and code with working bitrate will be og great help. If consultation is provided for fee do let me know the fees.

TIA
brmadhukar
 

usbman

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Re: USB development Help.

brmadhukar said:
Hi,
Can anyone provide me help on USB1.1 or 2.0 development. I need to transfer a minimum of 5.5Mbps using 1.1. I have used Scanlogic SL811 usb controller and JUngo drivers. I am unable to do that rate.
TIA
brmadhukar
Which Controler are you using ?
Is it fast enough to handle 5 MBits ?
A data rate of 700kBytes/s means that your controller needs to move
around 700 Bytes /ms with 240 bytes buffer somewhat hard to do.
Your controller must be able to handle a 64 Byte packet araound each
100 µS

usbman
 

brmadhukar

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Hi
I am using Cypress device. Scanlogic SL811ST controllers. They are supposed to support USB1.1.
How do I know whether they can handle the dat rate. All the timings are in nanoseconds and the transfer should happen at around 100us so timing is met.
Do let me know what other information you require.

brmadhukar
 

usbman

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wich micro is connectet to the usb device.

What I realy mean: Is the mcu fast enough to provide that data rate.

usbman
 

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