Hi,guys,
I write a program to transmit data from memory to McBSP's DXR by DMA,
and now I want to transmit data repeatedly, but after the McBSP started the dma just transmit memory data once,
are there somebody know how to setup DMA to make it work repeatedly.
What device are you targeting?
Brandon
TMS320VC5402, thanks you first.
I want to know which register control data buffer pointer, I think after once transmitting,
maybe the pointer is not reset to the first position of my buffer.
I would suggest you take a look at an existing application note that illustrates how to use the McBSP and DMA by interfacing to an AIC24 codec.
This TMS320C54xx McBSP to TLV320AIC24 Interface application note (SPRA957) has example code that you can utilize.
ALL CONTENT AND MATERIALS ON THIS SITE ARE PROVIDED "AS IS". TI AND ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY OF THESE MATERIALS FOR ANY PURPOSE AND DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THESE MATERIALS, INCLUDING BUT NOT LIMITED TO, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHT. NO LICENSE, EITHER EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, IS GRANTED BY TI. USE OF THE INFORMATION ON THIS SITE MAY REQUIRE A LICENSE FROM A THIRD PARTY, OR A LICENSE FROM TI.
Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI and its suppliers reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.