usb relay board

During the project development, we need a USB-to-relay device to control the wireless transmitter device when the switch is enabled. When purchasing the device, the sourcing department buys a batch of devices without knowing the operating environment of the relay device, later, we found that the device manufacturer only provides the Windows library, and we want t

There is an old computer to deal with, throwing it away will pollute the environment, and the pollution of electronic products is very bad; sold, no one buys it. Donation or recycling are alternative solutions, but what should I do with my personal information on my computer? Manual deletion may not be cleaned up. After the computer is released, it will not be able to keep your private diary or photos flowing to the Internet one day. No one wants to see this situation. Now we have something cal

A few days ago, hid device, through the USB HID device and Windows communication. Now let's get this mass storge. First description of the environment: Linux version: 3.15 Using the Development Board: SAMA5D3 compilation Environment: Ubuntu 12.04 1, first configure the kernel, see the following figure Enter Device Drivers---> Select Enter [*] USB Support---> Then

, Amy electronics guessed that Altera cut down the low-end fpga I/O diode clamp protection circuit to reduce costs. Recommended plugging Sequence Cabling Sequence 1. Power off the FPGA Development Board; 2. Connect the JTAG cable of the JTAG simulator to the JTAG interface of the FPGA Development Board; 3. Insert a USB cable to the

Let the Linux kernel 2.6.24 support usb mouse on the Development Board-general Linux technology-Linux programming and kernel information. The following is a detailed description. This afternoon, we modified menuconfig for the previously ported Linux kernel 2.6.24 which could not detect the USB mouse. the USB mouse of t

Linux-2.6.32 port on mini2440 Development Board configure USB peripherals 1 configure and test USB keyboard, scanner and mouse input in kernel source code directory terminal: make menuconfig, select the following sub menu items in turn: device Drivers ---> [*] HID Devices ---> press the Space key to select "USB Human I

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

Xixi teach you how to use USB to sync wince with PC (reprinted please note the Source: http://www.cnblogs.com/c51port/archive/2011/03/11/1980354.html) How to use USB to synchronize wince with PC Previously, WinCE can be used to synchronize the network cable with the PC, but the PC won't be able to access the Internet. It is inconvenient to query the information online during debugging. It is very difficult

USB experimental boardoverview This project aims to provide a easy to use USB experimental board for students of the first year. instead of only using the standard log for their (yet simple) programs, they are able to integrate hardware into their applications, which makes programming more interesting. the project provides a Java API to access the hardware such

():buf= bytearray(8)#reportis8byteslongbuf[2]=0hid.send(buf)#keyreleasedpyb.delay(10)defpress_key_once(key):buf=bytearray(8)#reportis8byteslongbuf[2]= keyhid.send(buf)#keyreleasedpyb.delay(10)defpress_2key(key1,key2):buf=bytearray(8)#reportis8byteslongbuf[2]=key1buf[3]=key2hid.send(buf)#keyreleasedpyb.delay(10)defrelease_2key():buf=bytearray(8)#reportis8byteslongbuf[2]=0buf[3]=0hid.send(buf)#keyreleasedpyb.delay(10)pyb.delay(1000)press_key_once(0x04)release_key_once()pyb.delay(1000)press_key_onc

In the learning of embedded, in the use of Ubuntu to connect the development Board when the software setup problem is plagued by death, multi-find, is not the configuration after 2013, in this, chat with you about the setup of the Development Board, I new study, may write too shallow, readers do not spray.This article only said that the serial port to the USB con

Use HL340 (CH431) usb to connect to the 44B0 Development Board through minicom in LUbuntu13.10 and use lsmod | grepusbserial to view the usb to serial port device. Lsusb allows you to view information about HL340, such as iVender and iProduct. You can use the dmesg command to view the USB-to-serial access status, for e

] blength=7[9.100000] bdescriptortype=5[9.11000 0] bendpointaddress=3[9.110000] wmaxpacketsize=40[9.110000] binterval=0[9.110000] Rt_usb_endpoint_is_bulk_out = 3[9.120000] [9.120000] Usb_endpoint_descriptor (3): [9.120000] blength=7[9.130000] bdescriptortype=5[9 .130000] Bendpointaddress=84[9.130000] wmaxpacketsize=40[9.130000] binterval=1[9.135000] rt_usb_endpoint_is_int_in = 4, Interval = 1[ 9.140000] nr_endpoint=4, in_num=2, out_num=2[9.140000] [9.145000] NON usb_speed_high[9.150000] CHIP typ

Insert the USB flash drive into the Development Board. A prompt is displayed, but it is not displayed. The folder udsik is available in the manual but cannot be found. Solution: 1. CD/Dev, we can see sd1. This is the prompt SD: sda1 when inserting a USB flash drive. 2. Create node mknod sda1 B 8 1 in the dev directory 3. CD/mnt/ 4. mkdir udisk 5. mount Moun

Tags: nbsp rmi mina sys var image wro bin chmodFdisk-c 0Fatformat MMC 0:1Ext3format MMC 0:2Ext3format MMC 0:3Ext3format MMC 0:4FastBootFastboot.exe Flash Kernel ZimageFastboot.exe Flash RAMDisk ramdisk-uboot.imgFastboot.exe Flash System system.imgFastboot-wFastBoot rebootMount the USB stick and operate it in the root directoryMount/dev/sda1/mnt/udisk[Email protected]]# lsBin etc linuxrc proc Sys usrDev Lib mnt sbin tmp var[Email protected]]# chmod 777

};//version is double-byte, here is the high-byte, low -byteRET = gtp_i2c_read (client, buf,sizeof(BUF)); = U8 buf[8] = {Gtp_reg_version >>8, Gtp_reg_version 0xFF}; //The first 2 bytes have been stored in gtp_reg_version, starting from buf[2], where the data structure remains consistent for subsequent code BUF[8]RET =i2c_read0 (0x5c, Gtp_reg_version, buf[2],6) i2c_read0 (0x5c, gtp_reg_version)//U16 with Double byte.3, overwrite interrupt function processing,look at the driver code, delete all th