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 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 d
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 Developmen
method:Input after power on: ifconfig eth0 down will eth0 off, because he will conflict with the module.Then enter the command under/ETC/PPP:PPPD Call wcdmaKeep it running in the background, if the migration succeeds, it will print some information, and the following is the last part of the interception:CHAP Authentication SucceededCHAP Authentication SucceededSent [IPCP ConfReq id=0x1 RCVD [IPCP ConfReq id=0x0]Sent [IPCP Confnak id=0x0 RCVD [IPCP confnak id=0x1 Sent [IPCP ConfReq id=0x2 RCVD [
/*************************************************************************** * 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 attempts:1first turn off the firewall on the
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
How GPIO is configured for Freescale IMX6 processors
Turn from:
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))
Where _mx6q_pad_gpio_19__gpio_4_5 is defined
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 analysis
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 defining gpio. Its prototype is:
#define IOMUX_PA
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-
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 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
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
=arm-linux-klib= root file system/lib/modules/3.0.35 klib_build= Linux kernel directory prefix= root file system/lib/modules/ 3.0.45/kernel/driver/wifiFind./-name *.ko|xargs-i CP {}/rootfs/lib/modules/3.0.45/kernel/driver/wifi//Copy all the WiFi drives in the modules directory of Ko to root file systeminstallation
Download the generated KO file to the board, modify the/etc/profile file boot load kernel moduleThe loading order is as follows:
Insmod Com
Often have DIY installed friends will ask, buy motherboard what board type motherboard good Ah, is the choice of the motherboard or small board? For such a problem, sometimes very difficult to answer, because the installed time, the choice of motherboard board type is not only related to the chassis, but also with their own needs. Today, the computer Pepsi Net sm
Introduction to user research methods--Emotion Board (Mood Board)
By Use research Group
This is a handout to the workshop of the 2009 annual Meeting of the UCD Book Club. At that time, I was invited by UCD to hold a WORKSHOP on user research topics at the annual meeting. Just that time the company has a user research project is trying to use the emotional board (
What are the board board types? Often have DIY installed friends will ask, buy motherboard what board type motherboard good Ah, is the choice of the motherboard or small board? For such a problem, sometimes very difficult to answer, because the installed time, the choice of motherboard
Regarding the choice of the digital board, I recommend to use the painting King Huion, however, here still have to tell you, parameters and everything is secondary, like playing games, many people will go to buy some cool mouse keyboard, meaning is not, the game won or lost these things can not decide too much, it is important to have a durable, Sensitive ' mouse ', digital board, the current general use of
The adk Board (a board) released by Google was designed with reference to the Arduino Board (M board). Let's see what's different.
Adk
Arduino mege2560
Power Supply
Lt3480edd # PBFLP2985-33DBVR
MC33269D-5.0LP2985-33DBVR
MCU
ATMEGA2560-16AU
ATMEGA2560-16AU
USB
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