dma module working problem after programming?

metusa

Hi all,

-I have one question related debugging with CCS. I have a player application using dma module of C5505. Everything is ok except this; When I click debug icon, program counter does not come to the starting point of the program(i,e. main func.) , it stops in dma_isr position in vectors.asm file when I halt the program. I then reset and restart the application it comes the starting point. I wonder why it does not come at first trial. Did anyone else encountered the same thing? what could be the reason?

-When debugging the program it runs OK, but when I burn the program into eeprom it FAILS. I wonder that the dma_isr was not loaded successfully. Is it true? Is it related the situation I described above? What should be done?

over 14 years ago

0 Cong Van Nguyen over 14 years ago

Intellectual 970 points

Hi,

I had this problem on C5515. According to the silicon errata document, the boot loader seems to disable somethings in the registers PCGCR1, PCGCR2, and ICR. I added the following code to the beginning of my programs, and it worked:

    /* Enable clocks to all peripherals */
    CSL_SYSCTRL_REGS->PCGCR1 = 0x0;
    CSL_SYSCTRL_REGS->PCGCR2 = 0x0;

    /* Enable all parts in ICR - for C5515 only? */
    ICR = 0x000E;
    asm(" idle");

Cheers,

Cong-Van

0 Cong Van Nguyen over 14 years ago

Intellectual 970 points

One more issue you may have is that the boot loader for I2C EEPROM does not work with large/huge memory config.

0 metusa over 14 years ago in reply to Cong Van Nguyen

Intellectual 480 points

Hi,

I tried but problem still exists.

I have burned all the dma examples from chip support library but they didnt work. They run ok when I debug it. The program hang out on while(DMA_getStatus(dmaLeftTxHandle)).

I can give the code example if anyone wants.

Does anyone successfully burn any of the dma examples of CSL ?

Thanks

0 Cong Van Nguyen over 14 years ago in reply to metusa

Intellectual 970 points

Hi,

Please note that CSL code, including example apps, are just for "chip support". In order to run on a specific DSP board, you will need "board support" code as well. Those apps can run in "debug mode" on your board because the GEL file and the boot image (already flashed on the board) handle board support for you.

Have a look at "common mistakes in boot image user code" at http://processors.wiki.ti.com/index.php/C5515_Boot-Image_Programmer

Cheers,

0 prashant sharana79967 over 14 years ago

Intellectual 415 points

Hi Metusa,

I am using 5502 DSP and am also facing same problem as you facing. I used the code given in CCS software installed path. So whom we have to approach to solve this issue. If you got the solution please let me know.

Please anyone help in solving this issue for us.

Regards,

Prashant.

0 metusa over 14 years ago in reply to Cong Van Nguyen

Intellectual 480 points

Hi,

You are right. But I have achieved to program other apps(for ex, I2C,SAR,GPIO) in CSL. I failed only dma apps. I suspected whether dma interrupt is working, I put it on polling mode but nothing changed. Am I missing something specific to DMA?

Best regards,

0 prashant sharana79967 over 14 years ago in reply to metusa

Intellectual 415 points

Hi Metusa,

You used Emulator to program other apps or simply generated .out file and flashed into board. What is the method you followed please let me know.

Regards,

Prashant

0 metusa over 14 years ago in reply to prashant sharana79967

Intellectual 480 points

Hi,

I first converted .out to .bin using hex55 utility. Next, I loaded the programmer.out file using CCS, and run it. Then I give the .bin file to CCS and it was flashed successfully.

Hope this helps...

0 Cong Van Nguyen over 14 years ago in reply to metusa

Intellectual 970 points

metusa said:

Hi,

You are right. But I have achieved to program other apps(for ex, I2C,SAR,GPIO) in CSL. I failed only dma apps. I suspected whether dma interrupt is working, I put it on polling mode but nothing changed. Am I missing something specific to DMA?

Best regards,

Yep, only DMA is idled by the boot loader. The boot loader disables MPORTI, which is required for all DMA transactions (CPU, LCD, USB). You need to enable it before using DMA:

ICR = 0x000E;
asm(" idle");

If your DMA settings use a peripheral clock source, make sure the peripheral is on before starting DMA.

Cheers,

Cong-Van

0 metusa over 14 years ago in reply to Cong Van Nguyen

Intellectual 480 points

Hi Van Nguyen

Thanks. It now works. I didnt know about cpu clock domain.

Best regards....

0 prashant sharana79967 over 14 years ago in reply to metusa

Intellectual 415 points

Hi Van Nguyen and Metusa,

Prashant : I dont know where and how to enable MPORTI.

Cong-Van : If your DMA settings use a peripheral clock source, make sure the peripheral is on before starting DMA.

Prashant : How to enable the peripheral clock.

I have attached the code with this mail. Please let me know where to do it.

With Regards,

Prashant

4743.dma2.rar

0 prashant sharana79967 over 14 years ago in reply to metusa

Intellectual 415 points

Hi Van Nguyen and Metusa,

Waiting for your earlier response.

Please help me asap.

Regards,

Prashant.

0 metusa over 14 years ago in reply to prashant sharana79967

Intellectual 480 points

Hi prashant

You should put this code before CSL_init()

..............

*(ioport volatile unsigned *)0x0001 = 0x000E;

asm(" idle");

CSL_init();

.................

0 prashant sharana79967 over 14 years ago in reply to metusa

Intellectual 415 points

Hi Metusa,

Thanks for the information. I will check it and let me know.

With Regards,

Prashant.

0 prashant sharana79967 over 14 years ago in reply to metusa

Intellectual 415 points

Hi Metusa,

Thanks a lot for replying.

I have added the instructions given by you in my dma module code, but its not working. If possible please send you dma module code to my mail ID "prashant.sharana@gmail.com" let me know whether I can make out from your code.

Please get me out of this problem. Waiting for your reply.

Regards,

Prashant.

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dma module working problem after programming?