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OMAP-L138 USB 2.0 Full Speed & SATA Port Maximum Baud Rate Check

RogerZ
Intellectual 295 points
Other Parts Discussed in Thread: OMAP-L138

 Dear All:

I have a storage device want to use OMAP-L138, But I have not find the maximum baud rate for USB2.0 full speed and SATA port. Are there any one knows??

  • 0
    TI__Genius 14545 points

    Zeng-wg, 

       I'm not sure about SATA, but the USB2.0 Specification defines the maximum (theoretical) for a full speed device as 12Mbps. The Electrical Specifications listed in the OMAP-L138 state that USB complies with the 12 Mbps for a full speed device.

  • 0 in reply to dabuan
    Intellectual 500 points

    The USB2.0 spec. has two different classes of USB full speed and high speed, full speed has a maximum of 12Mbps, high speed is 480Mbps, of which 320Mbps is a maximum for actual data transfer as far as I know.

    I have successfully written a driver for the USB that operates as a USB port and can acheive a throughput of 31MiBytes per second down to the TI chips and an aggregate throughput of ~36MiBytes per second, but these were for a serial port driver (CDC-ACM mode) not the MSC device type that you require.

    Peter

     

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