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EDMA
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  • Forum Post: Continous SPI Communication via EDMA controlled by Spix_ENA line

    Jeremiah Ferguson
    I am using a C6748 processor an I am interfacing an ADC to an SPI bus with the DSP being the master. I would like to set up a continuous ping-pong edma transfer that is gated by the SPIx_ENA line. Is it possible to set this up with the existing psp drivers, or will I have to manualy set up the EDMA...
    on Sep 10, 2010

  • Forum Post: error creating SIO stream

    Royke
    I'am using the McBSP, EDMA and SIO data stream. This works. Now I want to create a new stream but get a error message SYS_error called: error id = 0x3 I'am using the LogicPD evm board with a OMAP L138 DSP/Bios. For testing I have build a test project with only the SIO stream in there for error...
    on Dec 10, 2010

  • Forum Post: BIOS 5.40 and CSL

    Marc48067
    Hello, I just ported my application for the DM642 from CCS3.1 (BIOS 4.90) to CCS4.2.1 (BIOS 5.40). I created the tcf file manually without using cdb to tcf utility. The application code makes use of CSL, so I had to integrate the cslDM642.lib. Her are the steps I executed: 1. Add include path of...
    on Feb 9, 2011

  • Forum Post: SPI DMA timing

    Admar Schoonen
    Hi I'm using the Logic EVM with C6748 SOM and I'm investigating spi transfer. So far, I have spi working in dma mode. However, like a few others on this forum, I've noticed that there is quite a big delay between chip select and start of spi clock if CSHOLD is set. This delay is not present...
    on Mar 8, 2011

  • Forum Post: ACPY3 and CCNT (3D Transfers)

    babs76
    My understanding is that ACPY3 does not implement 3D DMA transfers utilizing CCNT on the DM6467, correct? So I have a few questions regarding this 1. Why does it not implement CCNT if the EDMA Controller User's Guide (sprueq5b) says this is available on the DM6467? 2. Is there an existing library...
    on Apr 22, 2011

  • Forum Post: edma transfer complete interrupt can not call my callback1

    Howard I
    I am running applications on both the ARM and DSP cores of an OMAP-L138. The ARM call DSP program through DSPLINK On the DSP side, I use the EDMA to transfer data through GPIO BANK 0 event . I am using the EDMA3 LLD driver (v01.11.00.02) to setup the EDMA. usage: EDMA3_DRV_requestChannel (hEdma, &chId...
    on May 17, 2011

  • Forum Post: EDMA to McASP and UART causes McASP to fail to start, bizarrely affected by memory map

    Stephen English47794
    Using DSP/BIOS 5.41.00.06 and PSP Drivers 1.30.01 on a C6745. I am having a serious issue trying to enable EDMA for both the Uart and McASP peripherals. I have built the Uart driver with EDMA enabled and I'm using it on a seperate EDMA TC to the McASP driver. The McASP driver is set for slave...
    on Apr 20, 2010

  • Forum Post: Using EDMA in DM6437

    Ayhan
    Hi! i want to use EDMA in DM6437. but first i have to learn EDMA usage. is there a any document or example code that i can learn? Thanks
    on Feb 14, 2011

  • Forum Post: SPI control with psp and edma

    Iain Scott
    I am trying to drive an SPI serial DAC from SPI1 of a C6748 DSP on a Zoom EVM. I am using DSP BIOS 5, psp 1.30.00.05 with edma lld 1.10.00.01. I have managed to provide clock, data & chip select signals using the SPI psp in interrupt mode but, because the device requires 24 bits of data, there...
    on Jun 8, 2011

  • Forum Post: Re: DMAN3 Address Translation for TI8168 DSP for ACPY3

    RV
    Thanks for looking into this. My use case is ARM+DSP and I am using : codec-engine_3_21_00_13_eng framework-components_3_21_00_17_eng included in this EzSDK release. Just to clarify, DMA transfers involving [both src,dst are in DDR3 ] addresses in DDR3 works without hitch. Any...
    on Jul 15, 2011

  • Forum Post: DMA Address Translation for TI8168 DSP for L1/L2 RAM

    RV
    I am using DMAN3 for DMA operations. Per this post from EDMA driver team, address translation should be done by application (DMAN3) if host processor memory map differs from EDMA controller map, which is the case in Netra. See here for more details. How should I do this address translation, so that...
    on Jul 14, 2011

  • Forum Post: c6747 EDMA from External memory to L2 Memory processing times.

    Harikrishna Vuppaladhadiam
    Hi, I am using the lib (edma3_lld_01_10_00_01). I have a task to optimize copy from External to Internal memory. Say 16K Bytes array. What is your suggestion? IF this array is contiguous array (1-Dimensional) what should be ACNT, BCNT, CCNT? What is the basis to define these values for a single...
    on Aug 31, 2011

  • Forum Post: SPI EDMA performance

    Admar Schoonen
    Hi I have some troubles getting a good SPI performance with the C6748 SOM on the Logic EVM. I've configured the DSP as SPI master, 7 Mbit/s (which turns out to be 7.35) using DMA. When my application calles GIO_write(), all data bytes are clocked out at 7.35 Mbit/s and there is no gap between...
    on Mar 15, 2011

  • Forum Post: UART BIOS not working, C6748 platform

    George Paravas
    Hi, I am trying to get the UART to work (UART bios) but I had no luck so far. I have read the C6748_BIOSPSP_User_Guide, and I have selected the UART example (interrupt or edma behaves the same). The project builds, and it gets downloaded to the evm board (with a C6748 on board), my gel file...
    on Dec 23, 2011

  • Forum Post: EDMA3_DRV_create() updating EDMACC0DSP

    barry mohan
    Hi All Am I missing something simple here ? We have integrated the PSP EDMA3 driver on our OMAPL138 using CCS4. Our main routine first calls edmaInit() (which is taken from • bios_edma3_drv_sample_init_multi_edma.c ). This initialises the globalConfig{} structure as follows globalConfig...
    on Dec 7, 2011

  • Forum Post: calling GIO_submit using UART with EDMA

    Royke
    I have a question, when I am calling GIO_submit(gioChan, cmd, bufp, *pSize, *appCallback), do I have to take care that the data where bufp points to, is avalaible till the data is completely send. Or does GIO_submit copies the data before it comes back?
    on Jan 27, 2012

  • Forum Post: Re: compile EDMA but get error

    shuanghe Zhu
    Hi, Thank you very much for your work and solution, it's very useful and i have recorrected the paths mentioned in the env.mk, and now the error "cannot found the ptah (找不到指定路径)" have been solved, and i have compile the rm folder, but got a new error: (command line:) C:\Program...
    on Feb 17, 2012

  • Forum Post: Re: compile EDMA but get error

    shuanghe Zhu
    Hi, I have found the reason of the problem which i asked for help just now, it's my own false, i have modifed a src file, and it have some error, now i have compile the edma lib, thank you very much for your help! Regards, Prasad
    on Feb 17, 2012

  • Forum Post: OMAPL138 16-bit SPI/EDMA transfers via PSP - alterations from 8-bit transfer

    barry mohan
    Hi Again Still have no replies to this post http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/168604.aspx#615313 Has anyone tried or had issues getting 16-bit SPI transfers to work with DSP as master interfacing to a FPGA. Our 8-bit transfers work without issue though can't...
    on Mar 8, 2012

  • Forum Post: EDMA data transfer incorrect

    benlu yu
    hi,all I'm using C674x core DSP, and initiailize EDMA driver with EDMA3 LLD library, all things look likes done, but can't transfer the data correctly. I requested two dma channels resource for McASP servicing, two link channels for every dma channel, Setting corresponding PaRAM, and linked...
    on Apr 9, 2012

  • Forum Post: DSPBIOS timer + edma + spi configuration

    serdar
    Hi all, I've been working on ADC reading part of a project. My ADC is ADS8332 and DSP is L138. My environment is DSP/BIOS version 5.41.11.38, BIOS PSP v 1.30.00.05 and CCSv5.1. L138 SPI0 pins and CS pin are directly connected to ADC. Convst and EOC pins are connected to L138's GPIO pins. The...
    on May 8, 2012

  • Forum Post: EDMA on beagleboard

    ali saleh
    Hi, I want to ask two questions: 1- How to run the EDMA_lld example using code composer studio v5. 2- How to use EDMA_lld v2 (implemented using SYS/BIOS) for omap3530 on beagle board . Regards,,
    on Oct 4, 2012

  • Forum Post: Continuous SPI Communication using EDMA

    Aquiles Lacruz
    Hello, I'm trying to read data from an ADC using SPI communication and transfering and ordering the data received using EDMA on an OMAPL137 EVM card. The ADC transmits data of N different channels and then I have to process this data. I'm using Ping-Pong Buffers and continuous communication...
    on Oct 26, 2012

  • Forum Post: Setting up EDMA trigered HWI using the DSP/BIOS Configuration Tool

    David Melinn
    Hi, I am having trouble getting a EDMA hardware interrupt working. I'm trying to emulate the project discussed here:- http://my.fit.edu/~vKepuska/ece3552/TI%20DSP-BIOS/BIOS/Integration%20Workshop/student%20guide/iw6m09%20bios.pdf but I am using CCS V5 so I have to migrate the project. I have tried...
    on Apr 24, 2013

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