[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-343761 

This ppt provides a tutorial about how to add 24bit LVDS support in Android for iMX6QD.

<analytics uacct="UA-5520491-1" /> How to enable WIFI support for i.MX53 QSB Android After applying every QSB patch, enable WiFi support according to your hardware. Android R4 can be downloaded from Adeneo´s website. AR6102  Change file device/fsl/imx53_loco/BoardConfig.mk -BOARD_WLAN_CHIP_AR6102  := false +BOARD_WLAN_CHIP_AR6102  := true AR6003  Change file device/fsl/imx53_loco/BoardConfig.mk -BOARD_WLAN_CHIP_AR6003  := false +BOARD_WLAN_CHIP_AR6003  := true After complete build ar6000.ko will be created under /system/etc/modules To turn WIFI on, go to Settings > Wireless & network s > Wi-Fi Error message case  In case logcat shows the following error message: E/WifiHW  ( 2086): Cannot access "/data/misc/wifi/wpa_supplicant.conf":Permission denied Reconfigure nfs server file /etc/default/nfs-kernel-server delete this line:   RPCMOUNTDOPT=--manage-gids

SW: Linux 4.14.98_2.2.0 bsp release , gpu sdk 5.3.0 and patch in this doc HW: i.MX8QXP MEK board Inspired by the GIMP adjust color curve tool,  I write similar gui test code for i.MX8QXP gamma curve tuning. That is on display will show one linear curve first, use mouse to change any part of this curve, after that calculate value of point on changed curve , then pass related value to i.MX8QXP DPU gammcor unit , at last the display effect will be changed by DPU. When test code start up , will draw Y=X curve on display, that will from (0,0) to (500, 500) to (1023,1023). After you use mouse drag some part of the curve, will generated a new point (x_new, y_new) which is not on original Y=X curve. Then need draw a new curve that pass  through the (0,0) , (500, 500) , (x_new, y_new), (1023,1023).  That new curve , i choose to use Catmull-Rom Splines to get it. Use Catmull-Rom Splines for approximate a curve that pass through n point, then need n+2 control point. Extra 2 point could be selected as you want ,and they will affect the shape of the curve. Catmull-Rom Splines could pass through all control point, it is C1 continuity, no convex hull property. For example, there is four control point p0, p1 , p2 , p3,  to draw the curve pass through all of them, it could divide to segment p0 to p1 , segment p1 to p2 , segment p2 to p3. For segment p1 to p2 , select four control point as p0,p1, p2, p3, use Catmull-Rom Splines as below: For segment p0 to p1 , need use four control point as p0, p0, p1, p2: For segment p2 to p3, need use four control point as p1, p2, p3, p3: In this test code,  i will use gpu vertex shader to calculate each segment of curve, then use transform feedback to read back point value of each segment to cpu side, cpu side will pass related value to DPU gammcor unit for gamma tuning.   Test steps: Apply 8qxp_dpu_gammacor_4.14.98_2.2.0.diff on linux-imx for i.MX8QXP DPU device driver. Apply dpu_gamma_curve_gpusdk5.3.0.diff on imx-gpu-sdk for build this gui test code. Update the new kernel image, and copy test code to rootfs. Run any other application first to draw some thing on screen, for example  /usr/share/cinematicexperience-1.0/Qt5_CinematicExperience. Then run gui test code in this code, S01_SimpleTriangle_Wayland. Then there will show one linear curve on display , use mouse to change the curve as you like by put mouse cursor close to the curve, press the mouse button , drag it and release the mouse button, you will see the new curve on display , and also the display effect also be changed. Reference: 1>https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-8-processors/i-mx-8x-family-arm-cortex-a35-3d-graphics-4k-video-dsp-error-correcting-code-on-ddr:i.MX8X  2>https://www.nxp.com/design/software/embedded-software/linux-software-and-development-tools/embedded-linux-for-i-mx-applications-processors:IMXLINUX?tab=Design_Tools_Tab  3>https://github.com/NXPmicro/gtec-demo-framework  4>https://en.wikipedia.org/wiki/Cubic_Hermite_spline  5>http://www.mvps.org/directx/articles/catmull

i.MX6X Core Board HW User Guide.pdf

For more information verify the U-Boot User Manual[1].   First all configure your board IP, your host IP and the gateway IP:   => setenv ipaddr 10.29.244.91   => setenv serverip 10.29.244.27   => setenv gatewayip 10.29.244.27 You don't need to set the gatewayip when using cross'cable! Save this configuration to flash: => saveenv   Download the file to board RAM: => tftp 0x80000000 zImage   Where:   400000 is the memory position where the file will be placed;   zImage is the file that will be downloaded from TFTP server.  

The i.MX27 multimedia applications processors balance high performance with low power consumption through an intelligent combination of dedicated hardware video accelerators and a fast ARM926EJ-S™ core. Both the i.MX27 and the i.MX27L processors provide an array of connectivity options and robust security. The rich feature set of the i.MX 27 processors make them an excellent choice for video- and voiceover- IP (V2IP) cordless and mobile phones, intelligent remote controls, point-of-sale terminals, control devices, low to mid end PNDs and many other wireless applications. i.MX Family Comparison Product Information on Freescale.com i.MX27 Multimedia Applications Processor i.MX27L Multimedia Applications Processor Evaluation/Development Boards and Systems IMX27PDK:  i.MX27 Development Kit Bootloader Compiling U-Boot for iMX27ADS Installing U-Boot on iMX27ADS Embedded Software and Tools Android OS for i.MX Applications Processors Partners / 3rd-Party Development Tools STK5:  Starter-Kit V for TX Modules with Freescale i.MX Processors (Karo Electronics) Additional Resources i.MX27 ADS Adding USB Host2 i.MX27 D1 Capture Kernel 2.6.22 Compiling U-Boot for i.MX27ADS IMX27-ADS i.MX27 ADS Board Flashing I.MX27 ADS Board Video i.MX27 ADS Board TV Out i.MX 27 ADS Adding USB Host2 i.MX 27 ADS Board Video GST Encode i.MX 27 ADS Board Video GST Play i.MX 27 ADS Compiling Linux Kernel Mainline i.MX 27 mDDR Issue i.MX 27 PDK I.MX27 PDK Board Flashing IMX27-Lite-Kit i.MX 27 Video GST Caps Installing U-Boot on i.MX27ADS

The following document contains a list of document, questions and discussions that are relevant in the community based on amount of views. If you are having a problem, doubt or getting started in i.MX processors, you should check the following links to see if your doubt is in there. Yocto Project Freescale Yocto Project main page‌ Yocto Training - HOME‌ i.MX Yocto Project: Frequently Asked Questions‌ Useful bitbake commands‌ Yocto Project Package Management - smart  How to add a new layer and a new recipe in Yocto  Setting up the Eclipse IDE for Yocto Application Development Guide to the .sdcard format  Yocto NFS &amp; TFTP boot  YOCTO project clean  Yocto with a package manager (ex: apt-get)  Yocto Setting the Default Ethernet address and disable DHCP on boot.  i.MX x Building QT for i.MX6  i.MX6/7 DDR Stress Test Tool V3.00  i.MX6DQSDL DDR3 Script Aid  Installing Ubuntu Rootfs on NXP i.MX6 boards  iMX6DQ MAX9286 MIPI CSI2 720P camera surround view solution for Linux BSP i.MX Design&amp;Tool Lists  Simple GPIO Example - quandry  i.MX6 GStreamer-imx Plugins - Tutorial &amp; Example Pipelines  Streaming USB Webcam over Network  Step-by-step: How to setup TI Wilink (WL18xx) with iMX6 Linux 3.10.53  Linux / Kernel Copying Files Between Windows and Linux using PuTTY  Building Linux Kernel  Patch to support uboot logo keep from uboot to kernel for NXP Linux and Android BSP (HDMI, LCD and LVDS)  load kernel from SD card in U-boot  Changing the Kernel configuration for i.MX6 SABRE  Android  The Android Booting process  What is inside the init.rc and what is it used for.  Others How to use qtmultimedia(QML) with Gstreamer 1.0

Chinese version of the paper had been published in July of China Integrated Circuit magazine. Please find Chinese version through following link. 飞思卡尔i.MX6平台DRAM接口高阶应用指导-DDR3篇

When the customer want to use the PCIE module on the i.MX6SX SDB board, they can use the oscillator to do the pretset, there are the test report.

Overview i.MX6Dual/Quad and i.MX6DualLite supports 32-bit and 64-bit DDR3. Freescale i.MX6 SabreSD board deploys 64bit DDR3 and 64bit DDR3 script is delivered into Linux/Android Software release. This document introduces how to create i.MX6 32bit DDR script based on 64bit DDR script when deploying 32bit DDR on customized board. Changes Set the DSE field in the following iomux registers to 0 - disable unused IO pad to save power: IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS4 IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS5 IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS6 IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS7 IOMUXC_SW_PAD_CTL_GRP_B4DS IOMUXC_SW_PAD_CTL_GRP_B5DS IOMUXC_SW_PAD_CTL_GRP_B6DS IOMUXC_SW_PAD_CTL_GRP_B7DS IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM4 IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM5 IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM6 IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM7 Update MMDC registers to reflect 32bit DDR changes: MMDC0_MDASP: Update CS0_END if CS size is changed. MMDC0_MDCTL: set DSIZ to 32 bit MMDC1_MPODTCTRL: Set it as 0 and disable the odt of higher byte Follow "i.MX 6 Series DDR Calibration" Application note to calibrate DDR parameters. Reference One example about 32bit DDR script is located under uboot-imx git ( File: board/freescale/mx6q_sabresd/flash_header.S). Open it and you can see the following script: #if defined CONFIG_MX6DL_DDR3 #if defined CONFIG_DDR_32BIT ... #endif You can refer to it and create your 32bit DDR script.

There developed the controller uses i.MX53 + Linux. Has developed a solution for building distributed information and control systems. Prototmpy been in operation for over a year. Examples: - Control Electromagnetic stirring (mixer) http://ontecom.com/en/catalog/ems / Rusal, Krasnoyarsk. - Moniroring and management of pumping stations. - Monitoring and control of climate control systems. You can create a smart home systems and iot. There is experience with PLC (Power Line Communication) Qualcomm/Atheros. In my spare time I develop a budget solution for PLC (Power Line Communication) control / monitoring components smart home. Based on the standard IEC 61131-3 developed software - distributed information management system. The solution is cross-platform. In a single system may be computers of different architectures and various operating systems. Such signals are synchronized controller ARM / Linux, and x86 server (Win, Linux, VMS, ...) Uses wxWidgets. Articles on this subject is, but in Russian.

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-344896 

Sometimes we need to use proxy to access network with Ethernet. Here are the steps for how to set proxy in Gingerbread and ICS. Gingerbread 1. Enable http proxy >  sqlite3 /data/data/com.android.providers.settings/databases/settings.db "INSERT INTO secure VALUES (99, 'http_proxy', 'wwwgate0.freescale.net:1080');" With this setting, you can access network for web browsing. If you want to play some http streaming content, you need to set a property for the player, > setprop rw.HTTP_PROXY http://wwwgate0-az.freescale.net:1080 2. Disable http proxy >  sqlite3 /data/data/com.android.providers.settings/databases/settings.db "delete from secure where name='http_proxy'" >  setprop rw.HTTP_PROXY "" ICS 1. Enable http proxy >  setprop net.proxy wwwgate0-az.freescale.net:1080 With this setting, you can access network for web browsing. If you want to play some http streaming content, you need to set a proxy property for the player, >  setprop rw.HTTP_PROXY http://wwwgate0-az.freescale.net:1080 2. Disable http proxy >  setprop net.proxy "" >  setprop rw.HTTP_PROXY ""

iWave's i.MX6 UltraLite (i.MX6UL) based SODIMM CPU module integrates power efficient high performance ARM Cortex A7 CPU core operating up to 528MHz speed. iMX6 UL SOM is ultra-compact in size and integrated with on-board PMIC, Flash, DDR3 and dual Ethernet PHY. The SOM is ideally suitable for the cost & power optimized general embedded and industrial applications.                                                                                                                                                                                                                                                                                                    i.MX6UL SODIMM Development Kit    i.MX6UL SODIMM SOM                                                                                                                                                                                                                                                                                                 Benefits: Ultra-compact form factor module with size of 67.6mm x 29mm Long term support: 7+ years Technical & Quick customization support Compatible with ARM Cortex A9 i.MX6 Q/D/S SODIMM SOM Highlights: Power efficient ARM Cortex-A7 @ 528MHz Advanced hardware enabled security PMIC with DVFS support Industrial temperature support available  Features: CPU: Freescale’s i.MX6UL1/2/3 @ 528MHz ARM Cortex A7 PMIC: Freescale PF3000 Memory: 256MB DDR3 RAM(Expandable) 256MB NAND Flash (Expandable) MicroSD Slot (Optional) 1 eMMC Flash (Optional) 1 QSPI Flash (Optional) 1 Communication: 10/100 Ethernet PHY – 2 Ports SODIMM Edge Interfaces: Debug UART Data UART – 2 Ports CAN – 2 Ports SD(4-Bit) – 1 Port 10/100 Ethernet – Up to 2 Ports 2 USB OTG – 2 Ports 24bpp RGB display port 8-Bit Parallel Camera Port I2S Audio or JTAG I2C x 1 Port PWM GPIOs OS Support: Linux 3.14.28 Power Supply: 3.3V @ 1A through SODIMM edge Note 1: At a time either NAND Flash or eMMC & QSPI flash or uSD & QSPI flash can be used in the SOM. By default NAND Flash is supported. Note 2: If 2 nd Ethernet (ENET2) not used, it can be used as additional 3 UARTs or Key pad 4x4 or RMII interface. Target Applications: Industrial HMI & Access Control Energy management & IOT gateway Industrial control & automation White goods & Smart appliances Medical & Healthcare equipments Mobile POS & Secure e-commerces To send us an enquiry on this product, please click here Enquiry Form To get more details on this product, please write us on mktg@iwavesystems.com

  The VAR-SOM-SOLO small form factor System-on-Module carries an advanced feature-set and broad connectivity options, making it an ideal solution for customers and products in the embedded market.   Staying on-trend with the market’s shift towards a cost-effective highly integrated off-the-shelf solution, the VAR-SOM-SOLO from Variscite levels the playing ground for a broad spectrum of embedded products. Bringing all the benefits of the widely successful VAR-SOM-MX6, the VAR-SOM-SOLO from Variscite carries much smaller dimensions and a slim lined price-point.  Features include Freescale’s i.MX6 1GHz Cortex-A9, SLC NAND, eMMC, dual band Wi-Fi/BT with MIMO, USB, Gigabit Ethernet, A/V interfaces and industrial operating temperatures. The VAR-SOM-SOLO utilizes a standard SO-DIMM 200pins interface to the carrier board, fully pin-to-pin compatible with the VAR-SOM-MX6.   Ohad Yaniv, Variscite’s CEO, explains the strategy behind the new System-on-Module: “In today’s market, we believe the compact VAR-SOM-SOLO presents a true synergy between an impressive feature set and an affordable price-point. We feel the newly introduced SoM reflects a constantly evolving embedded application concept that requires advanced multimedia features, in a compact and cost efficient solution.”   Key features include:   - Freescale i.MX6 1000MHz single Cortex-A9   - Up to 1GB DDR3, 512MB SLC NAND and 64GB eMMC   - Certified Wi-Fi 802.11 a/b/g/n 2.4/5GHz with optional 2x2 MIMO   - Bluetooth 4.0/BLE   - Full 1080p video encode/decode capability   - Vivante GPU 2D/3D graphics accelerator   - Display: 2x LVDS, HDMI1.4, MIPI DSI   - 10/100/1000 Mbps Ethernet   - USB 2.0: Host, OTG   - PCIe   - Audio In/Out   - Camera inputs: MIPI CSI, parallel   - Dual CAN, UART, I2C, SPI   - Industrial temperature -40 to 85°C   - Dimensions: 33mm x 68mm x 4mm   - OS: Linux Yocto & Ubuntu, Android, WEC 7 & 2013   Availability and Pricing: The VAR-SOM-SOLO is available now. Pricing starts at 42USD. Contact sales@variscite.com or +972 9 9562910 for more information.   About Variscite: Variscite is a leading System on Modules (SoM) and Single-Board-Computer (SBC) design and manufacture company. A trusted provider of development and production services for a variety of embedded platforms, Variscite transforms clients’ visions into successful products.   Learn more about Variscite, visit www.variscite.com    

[中文翻译版] 见附件   原文链接： Add a new shared memory region on Android Auto P9.0.0_GA2.1.0 BSP 

Measuring only 20mm x 50mm, the DART-MX6 from Variscite is the smallest System-on-Module (SoM) supporting Freescale’s i.MX6 quad and dual core ARM Cortex-A9™ processor. The DART-MX6 offers impressive performance and scalability. Together with optimized power consumption this miniature sized SoM is ideal for portable and battery operated embedded systems. The DART-MX6 highly integrated connectivity includes dual band Wi-Fi/BT with optional MIMO, dual USB, Gigabit Ethernet, PCIe and A/V interfaces. Furthermore, the system supports industrial operating temperatures. Performing as the DART-MX6 carrier board, the VAR-DT6CustomBoard completes an attractive full reference kit, which can be used for customers’ evaluation, development and end-product mass production. Key features of the DART-MX6 include: - Miniature size: 20mm x 50mm x 4mm - Freescale i.MX6 800MHz Quad/Dual ARM Cortex-A9 - Up to 1GB LP-DDR2 and 32GB eMMC - Certified Wi-Fi 802.11 a/b/g/n 2.4/5GHz with optional 2x2 MIMO - Bluetooth 4.0/BLE - Full 1080p video encode/decode capability - Vivante GPU 2D/3D graphics accelerator - Display: 2x LVDS, HDMI1.4, MIPI DSI - 10/100/1000 Mbps Ethernet - USB 2.0: Host, OTG - PCIe - Audio In/Out - Camera inputs: MIPI CSI, parallel - Dual CAN, UART, I2C, SPI - Industrial temperature - OS: Linux Yocto, Android Availability and Pricing: The DART-MX6 SoM and development kits are available now. Email sales@variscite.com or call +972 9 9562910 for more information About Variscite: Variscite is a leading System on Modules (SoM) and Single-Board-Computer (SBC) design and manufacture company. A trusted provider of development and production services for a variety of embedded platforms, Variscite transforms clients’ visions into successful products. Learn more about Variscite, visit www.variscite.com

How to load the camera driver modprobe ov3640_camera modprobe mxc_v4l2_capture How to encode audio gst-launch alsasrc ! mfw_mp3encoder ! filesink location= audio.mp3 Encoding an AVI audio only gst-launch alsasrc ! mfw_mp3encoder ! avimux ! filesink location=audio.avi You can use audiotestsrc instead of alsasrc Encoding Audio and Video (testsrc only) Raw video and Raw audio gst-launch videotestsrc num-buffers=250 ! 'video/x-raw-yuv,format=fourcc)I420,width=320,height=240,framerate=(fraction)25/1' ! queue ! mux. audiotestsrc num-buffers=440 ! audioconvert ! 'audio/x-raw-int,rate=44100,channels=2' ! queue ! mux. avimux name=mux ! filesink location=test.avi H.263 video and Raw audio gst-launch videotestsrc num-buffers=250 ! mfw_vpuencoder codec-type=1 ! queue ! mux. audiotestsrc num-buffers=440 ! audioconvert ! 'audio/x-raw-int,rate=44100,channels=2' ! queue ! mux. avimux name=mux ! filesink location=test.avi H.263 video and MP3 audio gst-launch videotestsrc num-buffers=250 ! mfw_vpuencoder codec-type=1 ! queue ! mux. audiotestsrc num-buffers=440 ! audioconvert ! mfw_mp3encoder ! queue ! mux. avimux name=mux ! filesink location=test.avi Real Source gst-launch-0.10 mfw_v4lsrc capture-mode=5 num-buffers=300 capture-width=320 capture-height=240 fps-n=15 blocksize=115200 ! queue2 max-size-buffers=1000 max-size-bytes=0 max-size-time=0 ! mfw_vpuencoder framerate=15 codec-type=2 name=venc  alsasrc num-buffers=300 ! audio/x-raw-int,rate=32000,channels=1,depth=16 ! audioconvert ! queue2 max-size-buffers=1000 max-size-bytes=0 max-size-time=0 ! mfw_mp3encoder name=aenc avimux name=mux ! filesink location=all_in_one.avi aenc. ! mux. venc. ! mux. The movie isn't that good, but you can improve that increasing num-buffers, width and heigh, and even framerate! STAMP If you face synchronization issues, you can try to use a non-standard plugin called stamp. Use the spec file gst-entrans.spec and this command line: gst-launch-0.10 mfw_v4lsrc capture-mode=5 num-buffers=160 capture-width=320 capture-height=240 fps-n=15 blocksize=115200 !  stamp sync-margin=1 sync-interval=1 ! queue2 max-size-buffers=1000 max-size-bytes=0 max-size-time=0  !  mfw_vpuencoder framerate=15 codec-type=2 name=venc  alsasrc num-buffers=160  !  audio/x-raw-int,rate=32000,channels=1,depth=16     !  audioconvert ! queue2 max-size-buffers=1000 max-size-bytes=0 max-size-time=0      !  mfw_mp3encoder name=aenc avimux name=mux ! filesink location=test_ALL.avi aenc. ! mux. venc. ! mux. Donwload the package from here: http://gentrans.sourceforge.net/ (source for stamp topic: http://blog.buberel.org/2008/03/using-a-usb-web.html)

The i.MX 6 D/Q/DL/S/SL  Android JB4.3_1.1.1 Patch release is now available on www.freescale.com ·         Target HW boards o   i.MX6DL  SABRE SD board o   i.MX6Q  SABRE SD board o   i.MX6DQ SABRE AI board o   i.MX6DL SABRE AI board o   i.MX6SL EVK board This patch release is based on the i.MX 6 Android JB 4.3_1.1.0-GA BSP release. ·         Release Description o   To upgrade the GPU kernel and libraries to improve GPU stability o   To handle the Android SDK build failure o   To improve FSL OMX The table below describes the contents of this release.      Release Description Patches Contains the patches included in this release. The patches   are described in “Patch Description”. Documentation Contains the following document: • i.MX 6 Android JB 4.3_1.1.1 Patch Release Notes: This   document. ·         Patch Description Please consult the release notes.