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Interfacing a XINF to a PC

Nezar Abou Qamar
Intellectual 380 points
Other Parts Discussed in Thread: TMS320F28335

Hi,

I would like to know if there is a way to inferface a PC to XINTF. I am using CCS5 and Delfino F28335.

Thak You Very Much,

Nezar

  • 0
    TI__Guru 64600 points

    I think it would be helpful to understand what you are trying to accomplish.

    If I strictly address your question, my response would be no, there isn't a way to interface a PC (Personal Computer) to XINTF of the TMS320F28335.  The XINTF of the TMS320F28335 is expected to drive the signals as a master to devices like memories, other slave logic, etc.

    If you want to connect a PC to the TMS320F28335, perhaps a standard COM Port with a RS-232 transceiver and SCI port of the TMS320F28335 would provide what you need.

  • 0 in reply to BrandonAzbell
    Intellectual 380 points

    Thank you for Replying. What I am trying to accomplish is to send data to the PC as close to real time as possible. I will need to transfer data at rate of 2 Megabit per second. I tried to send the data through my XDS100 V1 and plot it, but it was slow. I understand that there are limitations on the com port speed. It would be great if you can suggest a solution.

    Regards,

    Nezar

  • 0 in reply to Nezar Abou Qamar
    TI__Guru 64600 points

    I don't know of a clean way to accomplish this as interfacing to a PC is limited to the interfaces available to it.  Certainly the desired data rate of 2Mbps could be sustained through a serial port like SPI or McBSP on the TMS320F28335, however, these interfaces are not available on a PC.  Therefore, additional circuitry would be required with software support running on the TMS320F28335 to support it.  Options might be an external SPI-to-Ethernet circuit, etc.  I'm not aware of anything directly off the shelf.

  • 0 in reply to BrandonAzbell
    TI__Guru 60865 points

    You may want to take a look at the various ICs provided by FTDI.  They translate from a variety of interfaces like SPI, UART, and parallel (all available on the F28335) to USB (available on the PC).  It looks like many of the devices have up to 1Mbyte/second transfer rates.