DevKit8500D/A User Manual - DMCS Pages for Students

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3.5.4 Video capture Video capture application Use r V4L2 LAYER CAMERA DRIVER Kernel CCDC DRIVER DECODER DRIVER HARDWARE Hardware Figure 3.5.4 Modular structure <strong>for</strong> video capture V4L2 Subsystem: The Linux V4L2 subsystem is used as an infrastructure to support the operation of the Camera Driver. Camera applications mainly use the V4L2 API to access the Camera Driver functionality. A Linux 2.6 V4L2 implementation is used in order to support the standard features that are defined in the V4L2 specification. Video Buffer Library: This library comes with V4L2. It provides helper functions to cleanly manage the video buffers through a video buffer queue object. Camera Driver: The Camera Driver allows capturing video through an external decoder. The camera driver is registered to the V4L2 layer as a master device driver. Any slave decoder driver added to the V4L2 layer will be attached to this driver through the new V4L2 master-slave interface layer. The current implementation supports only one slave device. 42
Decoder Driver: A decoder driver must implement the new V4L2 master-slave interface. It should register to the V4L2 layer as a slave device. Changing a decoder requires implementation of a new decoder driver; it does not require changing the Camera Driver. Each decoder driver exports a set of IOCTLs to the master device through function pointers. CCDC library: CCDC is a HW block in which acts as a data input port. It receives data from the sensor/decoder through parallel interface. The CCDC library exports API to configure CCDC module. It is configured by the master driver based on the sensor/decoder attached and desired output from the camera driver. Kernel Driver reference path: linux-2.6.32-devkit8500/drivers/media/video/ linux-2.6.32-devkit8500/drivers/media/video/omap34xxcam.c linux-2.6.32-devkit8500/drivers/media/video/tvp514x-int.c 43
Page 1 and 2: DevKit8500D/A Integrated with LCD,
Page 3 and 4: Version update records: Rev Date De
Page 5 and 6: Contents CHAPTER 1 OVERVIEW .......
Page 7 and 8: 4.1 INTRODUCTION...................
Page 9 and 10: Chapter 1 Overview 1.1 Product intr
Page 11 and 12: • 512MB 32bit DDR SDRAM • 512MB
Page 13 and 14: Chapter 2 Hardware System 2.1 CPU 2
Page 15 and 16: include feature phone, PDA, and han
Page 17 and 18: 2.2.5 TFP410 The TFP410 is a Texas
Page 19 and 20: 2.3.2 Power Output Interface J4 Pin
Page 21 and 22: 8 DSS_D7 LCD Pixel data bit 7 9 GND
Page 23 and 24: 7 D5 Digital image data bit 5 8 D6
Page 25 and 26: 6 NC NC 7 RTS Request To Send 8 CTS
Page 27 and 28: 9 RTCK Receive test clock 10 GND GN
Page 29 and 30: LED 6 USB1 USB indicator 1 LED 7 US
Page 31 and 32: 1) X-loader is a first level bootst
Page 33 and 34: cp /media/cdrom/linux/tools/mkimage
Page 35 and 36: make distclean make devkit8500_conf
Page 37 and 38: sudo /home/embest/tools/ubinize -o
Page 39 and 40: drivers/usb/gadget. 3.5 Introductio
Page 41: 3.5.3 Display interface Control App
Page 45 and 46: 3.6 Driver Development 3.6.1 Driver
Page 47 and 48: #endif } }; static int __init gpio_
Page 49 and 50: goto fail2; } error = gpio_directio
Page 51 and 52: 3.6.2 Driver for the gpio_leds 1) D
Page 53 and 54: * PTU - Pull type Up * DIS - Pull t
Page 55 and 56: GFP_KERNEL); … for (i = 0; i < pd
Page 57 and 58: HP USB Disk Storage Format Tool wil
Page 59 and 60: 2011 ……… ……… Remounting
Page 61 and 62: *** Warning - bad CRC or NAND, usin
Page 63 and 64: oot@DevKit8500:# echo 1 > /sys/clas
Page 65 and 66: The DevKit8500D/A Development board
Page 67 and 68: 5) Use ping command in the HyperTer
Page 69 and 70: format subformat : S16_LE : STD cha
Page 71 and 72: Display: Stream on... Capture: Stre
Page 73 and 74: eading x-load.bin.ift_for_NAND 1089
Page 75 and 76: Texas Instruments X-Loader 1.47 (Se
Page 77 and 78: File /sdk/build/DVSDK_4_00/4_00_00_
Page 79 and 80: eturn -1; } if((f_led2 = open(LED2,
Page 81 and 82: 4.3 Features Resources of BSP: Cata
Page 83 and 84: 11) Windows Mobile 6 Professional S
Page 85 and 86: GPIO bsp\DevKit8500\SRC\DRIVERS\GPI
Page 87 and 88: MicroSoft Visual Studio Document->
Page 89 and 90: card) Download file type: 1 (You ma
Page 91 and 92: 4) Copy C:\wince600\platform\DevKit
Page 93 and 94:
DeviceIoControl(hFile, IOCTL_GPIO_S
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Appendix Appendix I Hardware Dimens
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Figure Appedix 2.2.2 You can call t
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Figure Appedix 2.2.6 Theoretically,
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3. Installing Ubuntu Figure Appedix
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Figure Appedix 2.3.5 Click OK Figur
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Figure Appedix 2.3.9 Click Forward.
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Figure Appedix 2.3.13 Figure Appedi
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Figure Appedix 2.3.16 Afterwards, i
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4. Please wait until the installati
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Note the "Mounted on" field in the
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9. Create the FAT32 partition for b
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can substitute your own volume labe
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} server_args = -s /tftpboot -c per
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Technical support & Warranty Servic
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Note: Those products are returned w
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