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integrating imx to vicp

charan teja reddy
Prodigy 65 points

hi everyone,

              1. Actually I had developed my own API on stand alone application of IMX.Now i need to integrate that API to the IPNC.In the IPNC also it has to run on IMX only.So is the integration possible only with the VICP,If yes How?

2.And one more thing, I had used  memcpy function in my API. Due to this , the performance of the system decreases.I need to transfer the data from DDR to imagebuffers in the IMX.How the transfer can be done with out memcpy.

Can any one help me out on this.

Thanks in advance

 

 

 

  • 0
    TI__Expert 6335 points

    Hi Charan,

    I will handle your issues offline.

     

    Victor

  • 0 in reply to Victor Cheng
    Prodigy 120 points

    Hi,

    I am developing an application on DM6446 EVM board with ARM9, DSP, VICP and some peripherals
    I got a problem and don't find any solution for that,
    Before please note my design details:

        1 - The ARM is master and control other parts of system
        2 - The boot process is executed from NAND (BTSEL == 00), So after power on, the RBL (ROM Boat Loader) copies
            second level boot loader from NAND to ARM IRAM and then my application is loaded to DDR
        3 - Based on "spraai4.pdf" and "sprue14c.pdf" documents, I used the ubl to load my own application to DDR
            (it is noted that my application does not use any linux so I dont use uboot, I developed specific application)
        4 - Binary file of my ARM application from .out was generated with tms470.exe in CCS v3.3
        5 - Settings for NAND is J4=NAND, S3[1..4] = 0000 (NAND boot, 8-bit AEMIF, ARM boots DSP)
        6 - In my application, first some peripherals of systems (PINMUX, UART, I2C, VPSS) are configured, then DSP and
            VICP codes are copied to DDR, then DSPBOOTADDR is programed and finally the ARM releases C64x+ DSP from reset,
        7 - The DSP&VICP codes are included in ARM binary file as a header
        8 - To program NAND flash I use flash_burn_utility based on following web site
            (http://wiki.davincidsp.com/index.php?title=Serial_Boot_and_Flash_Loading_Utility)
        9 - The value of PSC_MDSTAT_IMCOP register (0x01C418A0)is 0x1E03 and the value of PSC_MDCTL_IMCOP register (0x01C41AA0) is 0x0003
            (I tested them with 0x1F03 and 0x0103 respectively but there is no difference)

    All parts of my design works correctly except VICP (actually IMX does not generate interrupt for completion of procedure). for example, I checked above procedure with simple DSP example ("blinding a LED") and the DSP boots and works correctly

    Also I checked program with JTAG Emulator when DSP_BT == 1 (J4=NAND, S3[1..4] = 0001), and VICP works correctly in this condition,
    Under this circumstances, I flashed NAND but ARM does not boot when DSP_BT == 1(J4=NAND, S3[1..4] = 0001),

    I dont really know why VICP does not work when DSP_BT == 0, is it need to initialze EDMA, INTC, MCBSP, ...?
    Does EDMA3LLD configuration after system power on conflicts with VICP?
    (I dont initialze and configure EDMA3 in ARM application because I think the DSP program initializes it automatically before using VICP in CPIS_Init method)