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Xintf initialisation on a F28335 with an ezdsp

joachim stadlbauer
Prodigy 20 points
Other Parts Discussed in Thread: AMC1210, CONTROLSUITE

Hello,

maybe some of you can help us (two students from Germany). Is there any tutorial or example for  the Xintf (external interface) initialisation on a F28335? 

A step by step documentation or some sort of tutorial would be awesome and helpful.

Greetings from Regensburg (Germany)

Michael and Joachim

  • 0
    TI__Guru 61235 points

    Look at the code that accompanies appnote SPRA958.

    http://www.ti.com/mcu/docs/litabsmultiplefilelist.tsp?sectionId=96&tabId=1502&literatureNumber=spra958l&docCategoryId=1&familyId=1414

    There is a file xintf.c that has an example.

    Regards,

    David

  • 0 in reply to David M. Alter
    Prodigy 20 points

    Hi David,

    thank you very much for that link. This file helped a little bit. The main goal ist to connect the ezdsp and the ti AMC1210 EMV via XINTF

    in order to evaluate 4 sensors prallel. We (newbies) think that this is quite difficult and we have no idea how to solve the problem or where we

    should start.

    Mabye we can find a good hint here.

    Regards,

    Joachim & Michael

  • 0 in reply to joachim stadlbauer
    TI__Guru* 91145 points

    Joachim & Michael,

    Within controlSUITE (www.ti.com/controlSUITE) there are XINTF examples for the 2833x

    C:\ti\controlSUITE\device_support\f2833x\v133\DSP2833x_examples_ccsv4

    The dma_xintf_to_ram configures the XINTF and then transfers data to it using the DMA.  You can ignore the dma stuff and focus on the XINTF configuration.

    joachim stadlbauer said:
    The main goal ist to connect the ezdsp and the ti AMC1210 EMV via XINTF

    For this you might want to look at the 2834x examples.  Since this device doesn't have an on-board ADC so on the controlCARD we placed an external ADC.  This example shows how to configure the XINTF to access that ADC.

    C:\ti\controlSUITE\device_support\c2834x\v112\DSP2834x_examples_ccsv4

    adc_on_xintf

    2834x controlCARD schematics:

    C:\ti\controlSUITE\development_kits\~controlCARDs\CC2834xHWdevPkg

    -Lori