I. Overview
1. The display drive architecture of flisikar imx6:
2. Objectives:
Because the sabrelite Development Board itself has provided LVDS interface, the target screen is LG's LP101WX1-SLN2, its main parameters are:
Resolution: 1280*800
Color: 18 digits
Color: 262 K
Clock frequency: 69.3 M Hz
2. porting process
1. First, connect the screen interface to the LVDS interface of the sabrelite Development Board. The following LVDS interfaces are pr
How GPIO is configured for Freescale IMX6 processors
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Http://zzjlzx.blog.chinaunix.net/uid-9688646-id-5206540.html
In Linux or Android, if we want to configure a Freescale IMX6 processor's Gpio pin, such as the gpio_19 pin, then this: [CPP] view plain copy #define Mx6q_pad_ Gpio_19__gpio_4_5 \ (_mx6q_pad_gpio_19__gpio_4_5 | Mux_pad_ctrl (No_pad_ctrl))
/*************************************************************************** * imx6 ar8031 Gigabit NIC cannot be used * imx6 either run Li Nux or Android cannot ping a direct-attached PC, but DHCP is configured to surf the internet normally. * This document documents the resolution process. * * Tony Liu, 2016-4-19, Shenzhen*/One, Ping does not pass the following
In Linux or android systems, if we want to configure the gpio pin of the feisikar imx6 processor, for example, the gpio_19 pin, we should look like this:
#define MX6Q_PAD_GPIO_19__GPIO_4_5\(_MX6Q_PAD_GPIO_19__GPIO_4_5 | MUX_PAD_CTRL(NO_PAD_CTRL))
_ Mx6q_pad_gpio_1920.gpio_4_5 is defined:
#define _MX6Q_PAD_GPIO_19__GPIO_4_5\IOMUX_PAD(0x0624, 0x0254, 5, 0x0000, 0, 0)
The iomux_pad macro is a key macro defi
The first part of Mobile 4G module for QT transplantMore information: http://topeetboard.com More about: https://arm-board.taobao.com1. First configure the kernel, this step is the same as the Android system porting 3G or 4G modules. General module manufacturers will provide porting documents, according to the document configuration kernel PPP protocol, USB to string, WCDMA, etc., add PID vid can. This step is strictly in accordance with the module ke
How to compile Linux kernel, imx6 compilation method
1. Handle environment variables first, ensure correct environment variables and tool chains:
Export path= $PATH:/home/xrz/pa100_toolchain/opt/freescale/usr/local/ gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin:/home/xrz/pa100_toolchain/opt/freescale/ Ltib/usr/bin2. How to compile the kernel and configure the kernel
Make Menuconfig arch=arm cross_compile=arm-fsl-linux-gnue
IMX6 Device Tree Interrupt description
Turn from:
Http://zzjlzx.blog.chinaunix.net/uid-9688646-id-5680717.html
Kernel_imx/documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt594 egalax_ts@04 {595 compatible = "Eeti, egalax_ts"; --corresponds to the I²C device name in the driver.596 Reg = 597 interrupt-parent = 598 interrupts = 599 Wakeup-gpios = 600};601The second cell bits[3:0] is used to specify trigger type and level flags:1 = Low-
In the use of IMX6 Core Board development, the program written to a U disk, want to run the program on the board through a U disk, U disk inserted on the board after the minicom in the information display, but unable to find the Mount file,/dev and/mnt did not find the corresponding file. Baidu later found that the U disk in the arm of Linux needs to be manually mounted. Here's how:1, the USB stick will be inserted after the information displayed in t
1. Adopt slave mode2, SS_CTL configuration is 0The configuration instructions for this bit in imx6 are as follows:whichIn slave Mode-an SPI burst was completed when the number of bits received in the shift register isEqual to (BURST LENGTH + 1). Only the n least-significant bits (n = BURST length[4:0] + 1) of theFirst received word is valid. All bits subsequent through received word in Rxfifo is valid.Follow the following two sentences:If BPW is set t
In the "can_485_module_v1.x" Hardware data compression package, provide a schematic diagram of the Cadence format andSchematic diagram of PCB, AD format and PDF format.The Linux driver for the 485 module is the "drivers/char/max485_ctl.c" file in the kernel directory, the default kernelThe driver is already included in the image.The test routine provides a "Schindler itop-imx6-minilinux-rs485_v1.x" compression package.1 Hardware ConnectionThe hardware
In the process of using imx6q spi5 (spi5 I added), I encountered a problem: 1) The upper app sends 3 bytes of data to Spi5 via Write () , uses the oscilloscope to capture its chip selection signal, as shown in: 2) The same driver, the upper app sends 3 bytes of data to the SPI2 via write () and uses an oscilloscope to capture its chip-selection signal, and then the slice is pulled higher after each packet of data (3 bytes) is sent. 3) on the Freescale's official website https://community.fre
1. Description of the phenomenon1) using the IMX6 Development Board, load 9 feet of 8G SanDisk SD card, the SD card read and write files are normal2) after inserting the 9-foot SD card into the newly welded SD card holder, the read-only cannot be written.2, read-only reasonsThe w/p pin on the SD card holder is soldered (equivalent to being suspended). Problem solving after re-soldering w/p.3. Cause analysisNormally, if the lock on the SD card is not l
Imx6q for C20 write Gpio driver, in the upper layer call open () function always error, return-1.After parsing the Gpio_request function, and looking for IMX_GPIO_NR (1, 17) in BOARD-MX6Q_SABRESD.CDefinition, found two definitions, (1, 17) and was used in Mx6_sabresd_board_init ()." Ft5x06-rst ")Since the PIN is a dedicated pin in the printed PCB board, the statement is commented out in the kernel, and the kernel is re-burned, then the test is OK.The experiment proves that the gpio_request can o
imx6 Device Tree Pinctrl parsing
Transferred from: http://zzjlzx.blog.chinaunix.net/uid-9688646-id-5680705.html
Recently in the porting of Linux, with the kernel version of 3.14.28, in the high version of the kernel source used in the device tree (device-tree), the device tree with the Pinctrl configuration, recorded.
1. General Settings
When configuring the serial port, the configuration information for the Pinctrl is as follows:
[CPP] view plain co
Because the kernel 3.0 does not support 9300 Series network card, need to modify the kernel, more trouble. Therefore, the direct use of Compat Open source driver code, because the latest 4.1, 4.2 version of the bug compiled run after the problem,
Figure Description: Moving, backup after the launch of Android virtual machine appears
Solution to the problem of panic:could not open D:\java2\android\android-sdk-windows\.android\avd\test.ini
A few days ago, I am sorting some files, the previously installed on the Android
your hard disk, so you need to view the Disk Manager (my computer -- Right-click -- manage -- disk management ). You can also use DiskGenius to view your c disk partition. As shown in, you need to change the second parameter to 1 .. If you enter the installation system entry when you restart the host, an error will be prompted. You can modify the last parameter by pressing E until it is modified to the correct parameter.
After completing the above work, we need to select a disk partition for f
/* ********************************************************************************* * I.MX6 Android Device Node Permissions * Description: * Android is using UEVENTD to create device node, will resolve ueventd.rc and ueventd.xxx.rc two * files in the device node permissions set to set permissions. * 2017-4-30 Shenzhen Longhua gen Zengjianfen
This is my collection of the classic books on Android development, high-definition PDF electronic version, can be downloaded in my Baidu network free of charge, I hope that the need for friends to help. Directory:Android 4 Advanced Programming (full source code included)"Crazy Android Handout""Android App Development (Guo Hongzhi)""
Android Android-use Eclipse to develop the first android Application, android-android
Open Eclipse and select File-New-Android Application Project
Application Name is our Application Name, which is also the Name we see in the mob
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