Sign in

username:

password:



Not a member?

Search c6x



Search tips

Subscribe to c6x



c6x by Keywords

AD535 | BIOS | Booting | Bootloader | C621 | C6211 | C6415 | C671 | C6711 | C6711DSK | C6713 | CCS | Chassaing | COFF | DAT | DM64 | DM642 | DMA | DSK671 | DSK6711 | EDM | EDMA | EMIF | Emulator | EVM | EVM620 | FFT | FIR | GPIO | Halting | HPI | HWI | IDK | JTAG | LDB | LDH | LDW | Linker | LMS | LOG_printf | Matlab | McBSP | MEM_alloc | MIPS | PCI | PCM3003 | Pipeline | Profiling | QDM | Reset | ROM | RTDX | Sampling | SDRAM | Stack | TEB | THS1206 | TMS320C621 | TMS320C6416 | TMS320C6711 | TMS320C6713 | UART | Vector Table | XBUS | XDS560

Sponsor

NEW! TMS320C6474: 3x the performance. 1/3 the cost. Three 1 GHz cores on 1 chip.

Discussion Groups

Discussion Groups | TMS320C6x | C6713: QDMA and EDMA chaining

Technical discussions about the TI C6000 DSPs (including the c62x, c64x and c67x DSPs).

  

Post a new Thread

C6713: QDMA and EDMA chaining - Bernhard Gustl Bauer - Jul 20 8:37:00 2004



Hello,

is it possible to chain QDMA and EDMA? I want EDMA to reload SRC and DST
of QDMA.

What I want to do is transfer 134 blocks of 8 words to different
locations in memory. There is no patern in this blocks so can not use a
2D EDMA.

So I configured QDMA to transfere 8 words and chained it to a EDMA. EDMA
reloads SRC and DST and should trigger a new QDMA cycle. The 1st QDMA is
triggered manualy and is performed. The 2nd one should be triggerd by
EDMA, but isn't. EDMA is run one time and write a value to QSRC and
QSDST. A write to QSDST should trigger a QDMA cycle. Manually it works
but not by EDMA.

Any help would be appriciated.

regards

Gustl




(You need to be a member of c6x -- send a blank email to c6x-subscribe@yahoogroups.com )