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  • Forum Post: 5505 DMA I2S

    Russell Barr17013
    First thanks for the example 5505 USM_Stick_AudioFilter. It shows a good example of how to implement the I2S with ping pong buffers. If I understand correctly how the DMA auto reload works I thing there is a small issue with the implementation. When a DMA length complete interrupt occurs the DMA...
    on Dec 15, 2009

  • Forum Post: C5505 I2S driving capability

    a shen
    Hi, We are thinking to interface ADC and DAC using C5505 I2S. Since we have multiple ADC/DACs on board, One ADC and DAC might need to be connected to the same I2S port. Does anyone know if the C5505 I2S port (in master mode) have enough driving capability for 2 slave devices? In our project, the ADC...
    on Jan 12, 2010

  • Forum Post: aic3204 test routine problem in I2S interupt register

    Russell Barr17013
    In the sample code aic3204 that comes with usbstk5505 there is a serious flaw in the routine aic3204_tone_headphone. This routine outputs a 1kz tone through the I2S port to the aic3204 codec. When you listen to the tone you can hear artifacts in the output that sound like missing data points. If ...
    on Dec 21, 2009

  • Forum Post: CSL I2S examples. Buffers doesnt match in I2S loopback test.

    Stefan Gram
    Hi. I'm trying to run the I2S examples from CSL on the 5505 USB Stick (The examples from ..\TMS320VC55XCSL-LOWPWR\c55xx_csl\ccs_v4.0_examples\i2s directory you get when you install TMS320VC55XCSL-LOWPWR-2.0.0.0). But I get I2S Read & Write Buffers doesn't Match!!! CSL I2S DMA MODE...
    on Apr 7, 2010

  • Forum Post: Re: 5502 McBSP & I2S CODEC

    TommyG
    Andy, Best place to find information on the peripherals is from the C5502 Product Folder: http://focus.ti.com/docs/prod/folders/print/tms320vc5502.html . Have found this resource. From here you want to look at 2 documents. First the silicon errata document: http://www-s.ti.com/sc/techlit/sprz020...
    on Jul 15, 2010

  • Forum Post: Re: DMA not working when booting from SPI EEPROM, works when running from debugger

    D E Ungar
    I'm glad Richard got his application running. I have been 3/4 successful – part of my application runs automatically upon power-up (via boot-loading from NOR Flash on the C5515 ezDSP); part requires a restart via the emulator, but then does run OK. Here's my situation: Source...
    on Oct 27, 2010

  • Forum Post: Re: Interrupt doubt

    Andrea Cruz
    Hi everybody, My problems still, after study and tries follow are more observations/details. I watch the registers IER0 = 0x0080 confirm the i2s rx interrupt but the register IFR0 = 0x00A0 seems not ok because show i2s rx and tx interrupts but the last is not configured. I read the document...
    on Nov 8, 2010

  • Forum Post: TMS320VC5401 HP1(GPIO),Uart Registers addressing Details

    Ashwin Panchal
    Hi, After working on TMS320VC5505 now i am working on TMS320VC5401. But during this development i am facing some problems, Generally in 5505 to access the peripheral registers (like GPIO, I2S, UART and Timers etc etc) we need to declare it's address with their name like below register decleration...
    on Nov 25, 2010

  • Forum Post: Re: Interrupt doubt

    Andrea Cruz
    Dear Pratap, thank you for attention. I would like to give more informations about the issue: First, the kit C5515 eZDSP uses I2S0 and MMC/SD1, so, the interrupts are independent. Second, despite the routine MMC_write() calls MMC_intEnable(0xF9), none interrupt function is write/associated of...
    on Nov 28, 2010

  • Forum Post: Re: Interrupt doubt

    Andrea Cruz
    Hi Hyun, Please, do you could take a look at this issue? Regards, Andrea
    on Nov 28, 2010

  • Forum Post: Errors in I2S Timing Section of TMS320C5515 Datasheet (TI lit#SPRS645B)

    rperezti
    There appear to be errors in the I2S timing section of the TMS320C5515 datasheet (TI lit#SPRS645B). Here is a summary of the errors we see: The table entry for tsu(RXV-CLKH/L) has #7 in column 1, but this parameter corresponds to reference #6 of Figure 6-29. The table entry for th(CLKH/L-RXV...
    on Dec 2, 2010

  • Forum Post: Re: Questions about the operation of DMA and I2S

    Andrea Cruz
    Dear Sr. Tsang, Have you got any news about these questions? Regards,
    on Jan 16, 2011

  • Forum Post: Re: Questions about the operation of DMA and I2S

    Andrea Cruz
    Dear Mr. Tsang, After your last e-mail I still trying fix the problem without success. According your e-mail the problem is because I am mixing two codes (Texas and Spectrum Digital). Do you know why it happens? Have any explanation? Dear colleagues of forum, After that I passed to implement...
    on Feb 21, 2011

  • Forum Post: eZdsp C5505 UBS stick development

    Kieran Yu
    hi ,i have aproblem with the AIC3204 of this USB stick. i want to use this develop board for ultrasonic sampling and processing : first, i want to use the AIC sample my ultrasonic signal (40KHz) constantly, then put it into C5505 for band-pass filter(FIR) through I2S, and then output the filtered signal...
    on Feb 25, 2011

  • Forum Post: Simultaneous DMA and CPU access to different SARAM blocks

    a shen
    Hi, In our VC5505 board, we are using DMA to transfer data to I2S from one SARAM block and while accessing the other block of SARAM from CPU. We noticed if CPU tries to access SARAM in each cycle the samples sent out by I2S will be corrupted once in a while, even though DMA and CPU are accessing different...
    on Mar 3, 2011

  • Forum Post: C5515 DMA to I2S0 Stops when USB Data Transfer Begins

    Bill Finger
    I am streaming audio samples to and from the I2S0 bus using DMA. I have two audio channels in each direction, 32 bit samples, at 96 kHz. This is a total data flow of 12.28 Mb/sec. Each audio channel has it's own DMA channel. I'm using ping-pong mode, with auto-reload. I am also set up to...
    on Oct 14, 2010

  • Forum Post: Re: C5515 DMA to I2S0 Stops when USB Data Transfer Begins

    Andrea Cruz
    Dear Bill, I am trying develop a application that record audio signal from codec to sd card. I sent two question (below) to this forum but the answers did not help me so much. http://e2e.ti.com/support/dsp/tms320c5000_power-efficient_dsps/f/109/p/72435/275315.aspx#275315 http://e2e.ti.com/support...
    on Mar 7, 2011

  • Forum Post: Re: Questions about the operation of DMA and I2S

    Andrea Cruz
    Thank you Mr. Tsang, Sorry for delay, unfortunately I can not focus exclusively on this project, please, do not interpret as indifference. After your e-mail (Jan 17) I insist to use DMA and test the example CSL_I2S_DMAExampale without success, and I posted a question on forum. After your e-mail...
    on Mar 11, 2011

  • Forum Post: Interrupt doubt

    Andrea Cruz
    (Please visit the site to view this file) Hi everybody, I am having difficult in interruption use when I mix two examples of CSL (CSL_I2S_INTCExample_Out and CSL_MMCSD_SdCardFSExample_Out). My final application will acquire sound by codec and record its values on a SD card. To improve...
    on Nov 6, 2010

  • Forum Post: Re: Interrupt doubt

    Andrea Cruz
    Hi Hyun, sorry for the delayed answer. Actually I am trying use DMA to receive data from Codec, but I am having some troubles, below link: http://e2e.ti.com/support/dsp/tms320c5000_power-efficient_dsps/f/109/p/84703/292251.aspx#292251 If you can help me , I'll be very grateful. Thanks...
    on Mar 12, 2011

  • Forum Post: Re: Questions about the operation of DMA and I2S

    Andrea Cruz
    Dear Mr. Steve Tsang, to reproduce my actual code I suggest you star with CSL_MMCSD_SdCardFSExtExample. All the files used are attached. You will need include the atafs_bios_drv_lib.lib and I included on my project the usbstk5515bsl.lib because I am using switches and leds examples supplied by Spectrum...
    on Mar 12, 2011

  • Forum Post: Re: Questions about the operation of DMA and I2S

    Andrea Cruz
    Hi Steve, I attached my project folder .zip because .tar presents the message "File Type Not Valid This type of file is not allowed." I revised the steps.txt file. I am using C5515 eZDSP and CSL 2.10. Thank you so much!!! Andrea (Please visit the site to view this file) (Please...
    on Mar 16, 2011

  • Forum Post: Questions about the operation of DMA and I2S

    Andrea Cruz
    Hi everybody, Since I do not have answer to my last question posted in this forum at: http://e2e.ti.com/support/dsp/tms320c5000_power-efficient_dsps/f/109/p/72435/264688.aspx#264688 I am trying use DMA to transfer audio signals from Codec via I2S to internal memory. I suppose that it will prevent...
    on Dec 16, 2010

  • Forum Post: Reconfiguring AIC3204 on 5515EVM

    Axel Plinge
    Hi all! I want to use the 5515EVM to test some algorithms using both the AIC3204 and the C5515. I modified the loopback routine that came with the board, but with little success. When I try to change the Sampling Rate from 48kHz to 20kHz by changing the PLL register values, it stops working. I found...
    on Mar 4, 2011

  • Forum Post: Re: Reconfiguring AIC3204 on 5515EVM

    Axel Plinge
    Hello! As far as I have deciphered the Code Example performing various Loopbacks with the 3204, it strictly uses the I2S Clock from the C55 as Master, /* I2S settings */ I2S2_SRGR = 0x0015; I2S2_ICMR = 0x0028; // Enable interrupts I2S2_CR = 0x8012; // 16-bit word, Master, enable I2C and then...
    on Mar 21, 2011
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