DaVinci™ Video Processors

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  • Forum Post: Audio alsa capture: IIS is currently being supported by McAsp?

    Jun_Zhang
    Greetings, In our usecase, audio data will be from an externel HDMI Rx together with video data. I am using ezsdk5.04 and working on a custom dm8148 board. My goal is developing our own alsa capture driver, so later we can use Gstreamer to process audio data. I checked the TI81XX_Audio_Driver_User_Guide...
    on May 16, 2012

  • Forum Post: DM8127IPNC RDK 2.8.0

    JumpStart
    I received the latest RDI 2.8.0 early this week and started flashing the IPNC with the included binaries (u-boot.min.nand & u-boot.bin). Resetting the IPNC and stopping in u-boot seemed to work properly. Next I rebuilt the whole RDK using the 'make sysall' command. When I flashed the IPNC...
    on May 4, 2012

  • Forum Post: Videostream manipulation

    Johannes N
    Hello, i am quite new to DSP/ARM development. I have a Mistral EVM with DM8148 and display. We need to modify every pixel of a realtime 720p60 videostream (directly from sensor) with a logarhythmic function involving neightbour pixels. I cannot find a suitable starting point for integrating a modification...
    on May 14, 2012

  • Forum Post: can't read back pin mux settings

    Chris Harvey
    I've got a TMS320DM8148 chip and I'm running the u-boot that came with the dm814x evm. I'm trying to set a pin mux value for a very specific pin, GPIO1[13]. The mux control register for this pin is called PINCNTL107 with reset value 0x00040000 at address 0x481409A8. I put the following line...
    on May 18, 2012

  • Forum Post: Seeking high level architectural diagrams, especially related to communications between A8 and M3 processors

    Charles Luciano
    Perhaps I have overlooked the diagrams in the documentation, so, feel free to reference them. If not ... I am seeking high (architectural) level diagrams of the OMX components. In particular, I am interested in the control paths through the 8148 used to create and configure OMX components that run...
    on May 23, 2012

  • Forum Post: Composite / S-Video display on DM814x EVM

    Mitul Chokshi
    Hi, I'm want to use composite video or s-video for display on DM814x EVM. I've modified load-hdvpss-firmware.sh script under /etc/init.d as: modprobe vpss sbufaddr=0xBFB00000 mode=sd:ntsc debug=1 i2c_mode=1 And I'm trying to display color bar on /dev/fb0 using saFbdevDisplay application...
    on Nov 4, 2011

  • Forum Post: CPPI DMA is not working even after all settings!

    Shahzad Muzaffar
    hi, I am trying to transmit a packet using CPPI DMA in the response of a HOST. I have done the following initialization and settings in the same sequence, but nothing appears on USB bus, is there any thing i am missing or doing wrong way? ======================== Queue manager control setup ...
    on Oct 12, 2012

  • Forum Post: RE: CPPI DMA is not working even after all settings!

    Shahzad Muzaffar
    Hi, TX is working. there was a hidden bit that was marked as Reserved (31st bit of Original Buffer length word of descriptor) and setting this interrupts started appearing and TX is working fine now. BUT! RX is not working. It remains queued in the queue but not going for processing. Instead rx_sop_starvation...
    on Nov 8, 2012

  • Forum Post: New EZSDK5.04 has ipv6 issues?

    Jun_Zhang
    Greetings, I am starting to use ezsdk5.04 since yesterday, and after disabling PCI and generated new uImage I got following error messages during the board is booting? Any reason why? I was using psp04.04 and ezsdk5.03 with same setting there was no such issue. ipv6: disagrees about version of symbol...
    on May 2, 2012

  • Forum Post: dm814x EVM: u-boot DRAM config vs DMM LISA MAPPING

    Daniel70334
    Hi, I'd like a clarification. When the EZSDK 5.05's u-boot starts up, it announces that it has 2 GB of DRAM: TI8148-GP rev 2.1 ARM clk: 600MHz DDR clk: 400MHz I2C: ready DRAM: 2 GiB NAND: HW ECC BCH8 Selected 256 MiB MMC: OMAP SD/MMC: 0 I believe that this comes from the contants defined...
    on Nov 27, 2012

  • Forum Post: Pinmux pullup on HPDET in dm814x

    Daniel70334
    Hi, I have a custom board which requires me to put a pull-up on HDMI_HPDET. I have the pinmux utility output specified to do this: MUX_VAL(PINCNTL116, (IEN | IPU | FCN8 )) /* GP1[22] */\ And, at the end of ti8148_evm_init() (in board-ti8148evm.c), my value is still there. I.e., *fa1409bc = 0x060010...
    on Nov 30, 2012

  • Forum Post: DM814x I2C3 pinmux setup

    Daniel70334
    We have a custom board, with peripherals connected to I2C3. I noticed these lines in board-support/linux-2.6.37-psp04.04.00.01/arch/arm/mach-omap2/i2c.c: void __init omap2_i2c_mux_pins(int bus_id) { char mux_name[100]; /* First I2C bus is not muxable */ if (bus_id == 1) return; if (cpu_is_ti814x...
    on Nov 27, 2012

  • Forum Post: memory leak when reading EDID in DM814x EZSDK 5.05?

    Daniel70334
    In board-support/linux-2.6.37-psp04.04.00.01/drivers/video/ti81xx/ti81xxhdmi/hdmi.c , in hdmi_get_edid() : if HDMI_CORE_DDC_READEDID() fails, then the buffers allocated by kzalloc() are all lost, right? It seems like HDMI_CORE_DDC_READEDID() should be done first ...
    on Dec 8, 2012

  • Forum Post: PINCNTL RSV bit: DM814x pin mux utility vs DM814x data sheet

    Daniel70334
    Hi, I'd like a clarification: the DM814x datasheet describes bit 19 "RSV" of PINCNTLx as: "Reserved. This bit must always be written with the reset (default) value." However the DM814x pin mux utility generates H files with a "MUX_EVM()" that does not set bit 19...
    on Dec 3, 2012

  • Forum Post: Can't boot custom DM814x board from MT29F8G16 NAND

    Daniel70334
    Hi all, I'm having problems booting from NAND ... We have a custom board with an MT29F8G16 (Micron 8 Gbit, 16-bit wide). Datasheet is attached. It has 256kB erasesize, 4kB pagesize, with 224 spare bytes. (U-boot calculates "oobsize" as 128 bytes.) I have modified the GPMC_NAND_HW_BCH8_ECC_LAYOUT...
    on Dec 12, 2012

  • Forum Post: Max div value check for DM814x MDIO Control Register bug?

    Daniel70334
    Hi, The DM814x TRM, sec. 9.4.2.2 says that the CLKDIV parameter in the "MDIO Control (CONTROL) Register" is bits 15 downto 0. But the check in drivers/net/davinci_mdio.c is against 0xFF: #define CONTROL_MAX_DIV (0xff) .... static void __davinci_mdio_reset(struct davinci_mdio_data *data...
    on Jan 10, 2013

  • Forum Post: how to strip .xem3 and .xe674?

    Daniel70334
    Hi, I'm trying to strip down some stuff for my NAND images. I noticed that the M3 and DSP files are quite large: -rw-rw-r-- 1 bob bob 19M Feb 21 16:51 ./board-support/prebuilt-images/dm814x-firmware_05_02_00_48/dm814x_c6xdsp.xe674 -rw-rw-r-- 1 bob bob 17M Feb 21 16:51 ./board-support/prebuilt...
    on Feb 25, 2013

  • Forum Post: How to implement PAUSE feature with OMX decoder application?

    Daniel70334
    Hi, We have written an OMX media player application using the ti-ezsdk_dm814x-evm_5_05_02_00. We are able to play and stop H.264 and AAC content. However, the TI OMX components do not seem to implement the OMX pause state. All media players have a "pause" button, so we have tried to implement...
    on Mar 7, 2013

  • Forum Post: ioctl TIOCSSERIAL fails with dm814x EZSDK

    Daniel70334
    Hi, All of our products have serial port interfaces for user configuration, which can themselves be changed (e.g. baud rate). On our previous AM33xx-based projects, we were able to change serial port parameters on-the-fly using ioctl(TIOCSSERIAL) - port type, port num, baud rate, base divisor, and...
    on Mar 2, 2013

  • Forum Post: DM814x EZSDK edid checksum calc seems wrong

    Daniel70334
    TI, EDID data is accessed with: ioctl (TI81XXHDMI_READ_EDID) calls hdmi_get_edid() hdmi_get_edid() calls HDMI_CORE_DDC_READEDID() HDMI_CORE_DDC_READEDID() calls read_edid() read_edid() calls hdmi_core_ddc_edid() for each 128-byte segment The hdmi_core_ddc_edid() in arch/arm/plat-omap...
    on Mar 13, 2013

  • Forum Post: TI 8148 openssl seg fault with HTTPS connection

    babs76er
    Hello, I am trying to log into a given website securely using libcurl and/or QT using HTTPS in an 8148 environment but keep getting a seg fault. The same code works on an ubuntu linux host. I've tried to simplify even more by just doing an HTTPS connection with openssl. I still get the seg fault...
    on Feb 8, 2013

  • Forum Post: DM814x PSP 04.04.00.02 and toolchain?

    Daniel70334
    I was looking at: http://processors.wiki.ti.com/index.php/TI81XX_PSP_04.04.00.02_Release_Notes It seems to say that the old CodeSourcery 2009q1 toolchain (with the non-functional gdb) is being replaced with " Arago Cross Compiler Toolchain v2011.09 with GCC 4.5.3 ". However, the URL to...
    on Apr 26, 2013

  • Forum Post: DM184x: Okay to increase video decoder output port buffers to 16?

    Daniel70334
    Hi, We have a custom DM814x board that is configured just like the DM814x-EVM. We are running ti-ezsdk_dm814x-evm_5_05_02_00. We noticed that the default number of OMX h264 decoder ("OMX.TI.DUCATI.VIDDEC") output port buffers is 16. We also noticed that gst-omx by default will allocate...
    on Apr 17, 2013

  • Forum Post: DM814x USB MUSB CPPI DMA issue?

    Daniel70334
    Hi, I've been looking at the USB serial gadget on DM814x. I had to insert a schedule_timeout() in the txdma_completion_work() loop in board-support/linux-2.6.37-psp04.04.00.01/drivers/usb/musb/cppi41_dma.c , as suggested in http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p...
    on Feb 12, 2013

  • Forum Post: dm814x low power modes?

    Daniel70334
    Hello, I'm trying to implement a low power mode for when our product goes idle. I still need the CPU, serial port, USB, and ethernet connection to be active, but I am trying to shut off everything else (M3, DSP, video pipeline). I started by killing my app, and doing: /etc/init.d/pvr-init stop...
    on Apr 5, 2013
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