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Re: Re: Slow EMIF transfer   [2 Articles]

Dear Dominic, C6x CPU reads from the EMIF are always significantly slower than expected. This is caused by pipeline and synchronization penalties: the data has to cross d...

Re: CCS3.1 vs CCS3.3   [2 Articles]

Hi Mike, Thanks for your clue. I disable the memory map. Now CCS 3.3 downloads the program and works fine. However, once i down load the code into Flash (after converting into h...

Remove signal glitches on EMIF?

I'm using a 6416 DSK board and had a question regarding the EMIF interface. I'm trying to send data from internal memory via QDMA out onto the EMIF pins on the 5-6K interface bo...

Problems with EDMA3

Hello, Currently we are working with the EVMDM6437 and we cannot make EDMA3 works fine on DM6437 as we did on DM642 and DM6446. The project is really complex and large so w...

Help:EDMA Interrupt Problem   [3 Articles]

Hi everyone: I am using the 6713DSK. When I am testing the code provided by TI Application Report:TMS320C6000 McBSP UART(SPRA633B), it runs successfully. Sending ,no problem,re...

Re: Secondary bootloader Using DMA   [2 Articles]

Truong- > I sent it to you b/c your opion has no benefit to the forum. You have no answer to > my question only that I should do it. So, I figure you have no clue how to do i...

EDMA3CC not setting IPR on transfer completion (DM6446 simulator)   [2 Articles]

Hi Folks, I have already stated my problem regarding QDMA transfer in my last mail. (I am trying to run the code in DM6446 simulator of CCS3.3 beta/CCS3.3 free edition) -...

memory mapped QDMA issue in DM6446 simulator   [6 Articles]

Dear All, I am trying to implement QDMA in a video codec algorithm in DM6446 simulator (CCS 3.3). I am using QDMA _BASE address as 0x1c00000. I am updating several memory ma...

Re: QDMA issue

On 4/3/08, Nilanjan Goswami wrote: > Hi Mike, > > Thank you very much for your help for DM6446 JTAG problems. > > Currently I am facing a new problem in CCS 3.3 beta s...

QDMA issue DM6446

Hi, I am running a codec on DM6446 simulator. Can you tell me whether a QDMA implemented code runs on DaVinci simulator? In my case, the CPU is waiting for QDMA_IPR/QDMA_IPRH...

C6713 simulator Error

Hi everyone, System: C6713 Device cycle accurate simulator ( CCS3.3) -> Simulates C6713 processor -> Supports L1P, L1D, L2 Cache, EDMA, QDMA, Timer(2), EMIF interfacing wit...

problem with DSKC6713 and STAR AD/DA module

Good morning, I have DSKC6713 of TI and the daughter card of DSP STAR AD/DA. In the file in the CD of the daughter card there are not the example for C6713. I attach the file C...

Re: EMAC DMA collisions on C6455

Hi Moshe, we have similar problems. I suppose it's because we use pre-release versions of the C6455 silicon (TMX instead of TMS). There are some known errors on this silicon ver...

has anybody used ACPY3?

hi, has anybody used ACPY3? I creat two QDMA channel and start them by ACPY3_start(dma_handle1) and ACPY3_start(dma_handle2); but when I use ACPY3_wait(dma_handle1) and ACPY3_...

memory transfer   [7 Articles]

hi, so this dsp(6711) drives me crazy, question: I want to copy some data from SDRAM(0x80400000) to 0x00000000 , the size of data is up to 10k, which ...

Re: changing word to short for DCT   [5 Articles]

> Juanan- > > > That's right, Jeff. The data is packed contiguosly, each byte has a > > pixel > > information. That's the problem, because I can't use any function suc...

ping pong buffers, QDMA and L1 cache??

Hi all, (...I know there's a lot of posts about cache usage but I'm too much confused...) I have a problem, I want to realize a multichannel implementation of a g729 enco...

EMAC DMA collisions on C6455

Hi, I have an application running on the C6455. I have written an EMAC module which can get and send IP packets. I also have written a QDMA module, which can initialize and in...

C6711 + PCM3003 delay issue   [2 Articles]

Hi, while developing an acoustical feedback system for a guitar, a friend and I ha ve run into trouble. Our simple "feed input to output" test program gets an unintentinal d...

Trouble running Target CPU

After making new project, I incremental built it and I've no errors and warning. But when I push RUN I've that error: "Trouble running Target CPU: Qdma can't submit TRP on 0 pr...

Re: Re:Answer for "About DM642 EDMA"

Hi Lemax, At 08:57 20.12.2006 +0800, =?gb2312?B?wt654r78?= wrote: > I wonder, when emifa is used as interface for SDRAM, the edma channel 3 > cannot be used for other ed...

Re: Bottleneck at the image data flow

Victor- > The document that I refered to was > "TMS320C6000 Chip Support Library API Reference Guide(spru401J)." > Chapter 5 is about DAT module. > > I also refered to...

C64X+ DAT module

Hi, I saw that the DAT module interface has changed in the new CSL for the C6455. In the DAT_open function the input is a structure of params. It's not possible to open it wit...

Re: MY GEL FILE(Modified) + ERRORS + MY SOURCE FILE to Jeff

Arunav- > Thanks for replying. > Now I am able to see my all the system in Big Endian Configuration, we are using > it, as finally my system is used in Apple Machine, so to s...

Re: MY GEL FILE(Modified) + ERRORS + MY SOURCE FILE to Jeff

Arunav- > I am sending the GEL File(Modified according to you), + Errors that are comming + > My Program with BIG ENDIAN Why are you using big endian? If your board is se...

Re: SDRAM access too slow   [4 Articles]

Does the 6727 have QDMA ? You should try using the DAT_copy() routine in the chip support library. It is my understanding that CPU access of SDRAM is not well pipelined com...

Re: DM642   [2 Articles]

Hello Harsha, EDMA: in C64x DSP is a basically enhanced version of the DMA which was used in the C620x/C670x devices.The EDMA includes several enhancements to the DMA. For more de...

QDMA Cycles counted different to theoretical   [2 Articles]

Hi all, I have to count cycles(in term of CPU cycles) taken by a QDMA data transfer.I used Timer_getCount instruction for that (transfer call and the wait), but I find huge valu...

QDMA doesn't transfer all the bytes!!   [4 Articles]

Hi all, I have to performe a QDMA data transfer.But some bytes are not copied and the destination still have the old values. I have verified the alignement of source and destina...

Re: HPI HRDY problems w/ EDMA   [5 Articles]

I can reproduce problem in DSPBios Task (w/ sleep delay). Either way, most of the time the CF can write and/or read ok; it is only when I push either the frequency (if I use task ...

Re: HPI and EDMA contention

Nir- > The destination address is 0xbf1e8. I tried "more aligned" addresses, > like 0x70000, but I had the same problem. I even tried address in > external memory. same...

QDMA and Cache C6713   [2 Articles]

Hi, I'm using the QDMA on the C6713 - It seems that I have to do a Cache_clean() of the SDRAM before each copy with the QDMA. (The copy is done from the IRAM to the...

Problem re-connecting to target thru XDS510PP+ when my code is flashed and running in DSK, please help   [13 Articles]

Dear all, I have a tested code flashed into the DSK Flash, I power cycled the DSK and it executed as I expected. I can connect with it and download symbols for debugg...

The relation between Dat_copy and QDMA

Hi, guys After some study i try to organize some conclusion of DAT_copy and QDMA, but there are still some doubt, if you have answer, give me a favor please. For d...

What's the difference between QDMA and EDMA?   [2 Articles]

Hello, After a study of TI's doc, "Applications Using the TMS320C600 Enhanced DMA", i realize that QDMA is used to transfer data once and EDMA is suitable for periodic...

Need help on 6713 DSK program

Hello all, I am trying to run "example 1.1 Sine Generation with eight points" written for TMS320C6711 DSK from Rulph Chassing's book DSP Applications Using C an...

EDMA in DM642   [3 Articles]

Hello All Is it possible to do the EDMA or QDMA between, SDRAM to SDRAM, i.e. with SRC and DST address in SDRAM???? "specifically in DM642". Rgds Harsh...

TI C6416 Functional simulator problem   [2 Articles]

Hi, I have just installed C64x (CCS version 2.20) Functional simulator and tried to run "Hello World" program.The Program is compiling fine and out file is gen...

C6713: QDMA and EDMA chaining

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 ...

Time Delay between 2 EDMA transfer

Hi all, I want to implement a self-linked EDMA transfer to service McBSP transmit port. I want to introduce delay (of around 100ms - 500ms) between two blocks ...