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Discussion Groups | TMS320C55x | DMA toggling mechanism
Technical discussions about the TI C55x DSPs (including the c5501, c5502, c5503, c5507, c5509, c5510 and OMAP5910).
DMA toggling mechanism - Saurabh Gupta - Aug 1 1:57:00 2003
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Hi I am using DMA with ABIS mode of McBSP of C55x to update the masking patterns in R/XCERA/B. But the thing is that inspite of the fact that i have tied the sync event of DMA to ABIS sync events and enabled the element level syncronisation even then DMA is unable to load the masking patterns in R/XCERB!! so due to that even if McBSP is toggling from R/XCERA--> R/XCERB and DMA being unable to load the pattern there is a loss of bit received during 16 McBSP cycles during the pase of R/XCERB. Even a slight pointer that addresses this problem or if somebody can lead me to some workaround would highly be appreciated.. rgds Saurabh |
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