Hello TI' teams.
My c64 device capture the paked data looked as is following:
A0-B0-C0-D0-E0-F0-G0-H0-A1-B1-C1-D1-E1-F1-G1-H1-A2-B2-.... -A511-B511-C511-D511-E511-F511-G511-H511
Where:
A,B,C,D,E,F,G,H - channel' number, and 0,1,..511 - sample number from corresponded channel.
Each sample has 32 bits width - one word size.
In other words: muxed data from 8 channels in size 8x512 words - 16K bytes totally.
I need to demux this packed data and reorder it into single buffer as is following:
A0-A1-A2-...-A511
B0-B1-B2-...-B511
C0-C1-C2-...-C511
D0-D1-D2-...-D511
.................
H0-H1-H2-...-H511
where data looked sequentially:
first 512 samples into target buffer - are samples from channel A, second 512 samples - are samples from channel B, etc...
I use AB-synchronized transfer. Because itsn't possible to demux this data with single trigger event used channel that can be chained to itslef.
EDMA PARAMS are as following:
VOLATILE UInt32 opt= CSL_EDMA_OPT_MAKE
(
CSL_EDMACC_OPT_ITCCHEN_ENABLE,
CSL_EDMACC_OPT_TCCHEN_DISABLE,
CSL_EDMACC_OPT_ITCINTEN_DISABLE,
CSL_EDMACC_OPT_TCINTEN_ENABLE,
chnlTcc,
CSL_EDMACC_OPT_TCCMODE_NORMAL,
CSL_EDMACC_OPT_FWID_8,
CSL_EDMACC_OPT_STATIC_NORMAL,
CSL_EDMACC_OPT_SYNCDIM_ABSYNC,
CSL_EDMACC_OPT_DAM_INCR,
CSL_EDMACC_OPT_SAM_INCR
);
param_channel[0] = opt;
/* Source buffer ptr */
param_channel[1] = (UInt32)pSrc;
/* BCNT = 8 | ACNT = 4 */
param_channel[2] = 0x00080004;
/* Destination buffer ptr */
param_channel[3] = (UInt32)pDst;
/* DSTBIDX = 2048 | SRCBIDX = 1 */
param_channel[4] = (wordsSizeX << 2) << 16 | 1;
/* BCNTRLD = 0 | LINK = 0xFFFF */
param_channel[5] = 0x0000FFFF;
/* DSTCIDX = 4 | SRCCIDX = 32 */
param_channel[6] = 0x00040020;
/* | CCNT = 512 */
param_channel[7] = 512;
I mean:
ACNT - size of single sample in bytes = 4
BCNT - number of channels = 8
CCNT - number of samples into single channel = 512
But data in target buffer isn't looks demuxed correctly.
Please help me fix the problem. I guess my problem is invalid SRCCIDX and DSTCIDX.
