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DMA McBSP setup for SPI on C5416

Joshua Williams
Prodigy 10 points
Other Parts Discussed in Thread: ADS7951

http://e2e.ti.com/support/dsp/tms320c5000_power-efficient_dsps/f/109/p/11088/43146.aspx#43146 is a similar post to my question.  I am currently using CCS v3.3.

As I start a new development I find it kind of disappointing that you would change the DSP/BIOS interface to not contain the graphical interface.  The worst part is all your documentation on how to setup the DMA and McBSP still only references the CSL GUI.  I have read the API from cover to cover and it doesn't seem to supply all the needed information concerning the setup of these devices.

I currently developing the interface for a C5416 DSP to a ADC and DAC.  The most helpful documentation provided on your site was found in SLAA160.  The major problem with that is it uses the GUI for the CSL. Is there any documentation other than the API SPRU420D to help out with this issue?  In the CSL documentation on pg 6-40 many examples are described, 3 and 4, but not placed in the document.  The document only contains example 1A in detail.  After I installed the CSL with my version of CCS these examples do not exist.  Are they available somewhere else?

I have many other questions, but these are only a few to start.  Thanks

  • 0
    Genius 4630 points

    What are the part numbers for the ADC and DAC that you are using?

    It's not impossibly difficult to figure out.  I have been able to successfully interface the C5506 to a couple of ADS7951 (12-bit, 8-channel, 1 MHz ADC) and an THS5671 (14-bit  125 MHz DAC) using the CSL.  I did have to scan through a lot of header files to fill in some missing information, but I used the Help files in CCS3 as well as the PDF documentation for the CSL.

    You should start with the hardware specifications document for the C5416 and pay particular attention to any additional hardware specifications documents such as may be dedicated to the McBSP details.  For my chip, the C5506, the McBSP is documented in a separate PDF which covers several C55x chips.  You might learn more about the McBSP on your C54x DSP by searching the TI documents web site.