Tag:device

  • Support 32-bit DDR4 SDRAM in Xilinx FPGA

    Time:2021-6-8

    Although modern FPGAs contain internal memories, the number of available memories is always several orders of magnitude lower than that of dedicated memory chips. So it’s not surprising that many FPGA designers attach some kind of memory to their FPGAs. Due to its high speed and low cost, SDRAM is a very popular memory. They […]

  • Usage of Python to (device)

    Time:2021-6-3

    As follows: device = torch.device(“cuda:0” if torch.cuda.is_available() else “cpu”) model.to(device) These two lines of code are placed before the data is read. mytensor = my_tensor.to(device) The meaning of this line of code is to copy all the tensor variables at the beginning of reading data to the GPU specified by device, and the subsequent operations […]

  • The difference between NAND flash and NOR Flash

    Time:2021-3-11

    1.1 interface differencesNOR flash withSRAMInterface, with enough address pins to address, can be directly connected with the CPU, the CPU can directly access nor flash through the address bus, and can easily access every byte inside it. NAND flash device uses complex I / O port to access data serially. It can only send command and […]

  • STT turbo MRAM

    Time:2020-12-16

    risingMRAMOne of the major players in the market has developed proprietary technology that says it will enhance the performance of any MRAM array by increasing retention and simultaneously reducing current. The precession spin current (PSC) structure of spin transfer technology (STT) has the potential to improve the density and zero leakage capability of MRAM. The architecture […]

  • FPGA configuration using high speed SPI NOR Flash

    Time:2020-10-30

    NOR flash memory is widely used as FPGA configuration device. The application of FPGA in industrial, communication and automotive ADAS applications depends on the low latency and high data throughput characteristics of NOR flash. A good example of fast start-up time requirements is the camera system in the automotive environment. The speed shown on the […]

  • Brief introduction of GPS satellite synchronous clock (NTP clock server)

    Time:2020-10-15

    Brief introduction of GPS satellite synchronous clock (NTP clock server) Brief introduction of GPS satellite synchronous clock (NTP clock server) Beijing Zhun electronic technology official micro enterprise — ahjzsz 1、 Features of GPS satellite synchronous clock products: GPS satellite synchronous clock is a high-tech equipment developed for computer, automation device, etc. it can obtain standard […]

  • Linux no space left on device causes 500 problem due to inode full

    Time:2020-10-15

    What is inode? Understanding inode starts with file storage. Files are stored on the hard disk. The minimum storage unit of the hard disk is called “sector”. Each sector stores 512 bytes (equivalent to 0.5 KB). When the operating system reads the hard disk, it does not read one sector at a time, which is […]

  • Network timing equipment, satellite timing server – Jingzhun Electronic Technology

    Time:2020-8-7

    Network timing equipment, satellite timing server – Jingzhun Electronic Technology Network timing equipment, satellite timing server – Jingzhun Electronic Technology Jingzhun electronic technology website ahjzsz.com Official micro ahjzsz Network timing equipment, satellite timing server – Jingzhun Electronic Technology Discussion on clock synchronization technology in power system Power system is a time-dependent system. No matter the […]

  • GPS network timing server operation system description, Jingzhun Electronic Technology

    Time:2020-8-2

    GPS network timing server operation system description, Jingzhun Electronic Technology GPS network time calibration server system is applied in the whole time and frequency system. If you want to build a complete system, it must be satisfied with the system’s production, inspection, existence and supervision. Based on the time interface protocol output by GPS network […]

  • The importance of satellite clock synchronization in power automation system

    Time:2020-7-3

    The importance of satellite clock synchronization in power automation system The importance of satellite clock synchronization in power automation system Anhui Jingzhun electronic technology micro X — ahjzsz In 2016, the State Grid Corporation of China issued the opinions on comprehensively promoting the construction of intelligent metering system, in which, in terms of improving collection […]

  • After QQ2440 starts Linux, USB 1-1 appears after inserting USB disk: device descriptor read / 64, error – 110, USB 1

    Time:2019-12-6

    Upper computer: Ubuntu 14.04 64bit Lower computer: QQ2440 Cross compiler: arm linux GCC 3.4.1 Linux kernel version used by the lower computer: kernel 2.6.13 1. The error information when inserting U disk is as follows: [[email protected] /home]# usb 1-1: new full speed USB device using s3c2410-ohci and address 6usb 1-1: device descriptor read/64, error -110usb […]

  • Processing Method of Deviceis Busy in Linux

    Time:2019-5-31

    When Linux manages umount devices, it often encounters “device is busy” if a file system in umount encounters this situation and you are not in the directory you need to uninstall. It is very likely that a user or process will be using that directory. # umount /mnt umount: /mnt: device is busy umount: /mnt: […]