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PRUSS HELP

Other Parts Discussed in Thread: OMAPL138, OMAP-L138

I want to run the PRUSS CORE under the CODE Composer studio.Are there any examples avaible or test code from were I can start.I have OMAPL138 from Logic which has the on board hardware emulator for DSP only.Can i run PRUSS code from DSP??

  • The PRU Software Development Package (http://focus.ti.com/docs/toolsw/folders/print/sprc940.html) contains a number of PRU example codes that interact with the DSP.   The DSP is also used to load the example code onto the PRU.  CCS projects are included for each example. 

    Note, both the Windows and Linux versions at this link make use of the DSP in the example code.

  • I have downloaded the examples and loaded the GPIO toggle example.But there is no documentation on the DOC disrectory nor at the link that is mentioned in readme under docs folder do you know which pruss core it is using and which GPIO is being toggled.Also the nultiply example does not work.

     

    Thanks

  • I now understand how to write code for the PRU Core.I have few questions its mentioned in the PRUSS letirature that the input and the output function is selected by the PINMUX register but in the datasheet I cannot find the description of the pinmux register.

     

    Does anyone knows where I can fine the description of the PINMUX registers for OMAPL138

  • An overview of the pinmux options for OMAPL138 can be found in the section 2.7 of the datasheet (http://focus.ti.com/lit/ds/symlink/omap-l138.pdf). 

    The system reference guide (http://focus.ti.com/lit/ug/sprugm7d/sprugm7d.pdf) contains additional details about the pinmux registers in section 11.5.10.

    Also refer to the Pin Multiplexing Utility tool to quickly determine how to configure the pinmux registers for your nees (http://focus.ti.com/dsp/docs/litabsmultiplefilelist.tsp?sectionId=3&tabId=409&literatureNumber=sprab63b&docCategoryId=1&familyId=1621).