2. Figure out the register ,gpio The relationship between... Etc ,to thi tha

such as :

https://www.ggdoc.com/bGludXggZ3Bpb_aTjeS9nA2/NmIzNDIyZGZmMTExZjE4NTgyZDA1YTcw0/

How to introduce it here ???

1. In the kernel  dump_stack Print by whom , Important --- to thi tha

Artifact ,to thi tha User mode ??

./csp/cspkernel4.1/HAL/boardcfg_mod.c

boardcfg_ioctl   Function acceptance gpio Of ioctl ha-ha

gpio led Learn more about articles

  1. Raspberry pie study notes ——GPIO Functional learning

    0. Preface     Raspberry pie is getting more and more popular now , There's more and more information about raspberry pie on the Internet . The study of raspberry pie can be divided into linux Systematic learning and linux Drive learning , Make it out of raspberry pie LED Water lamp should be regarded as driving learning . Raspberry pie comes from abroad , Foreign countries are developing ...

  2. PHP To learn 5——RESTFul frame Remote control LED

    0. Preface     last year (2013 year )2 For the first time in May yeelink platform , At that time, the platform had been running for some time and attracted a lot of geeks . Imagine that you're going to join in IoT( The Internet of things ) industry , I spent some time studying it . It has been used and studied continuously for one year ...

  3. The embedded Linux Learning notes ( 3、 ... and ) Character device driver --LED Drive development for

    After successfully building a system that can run on the development board platform , The next step is to start the application development ( The premise here is that there is a certain C Language foundation , Yes ARM The soft of the system / Hardware , If you have questions about this part, you may want to refer to other tutorials ), Break down tasks carefully according to requirements , You can find the ...

  4. Zynq 7020 Note it GPIO MIO and EMIO Learning from

    1 Reference resources Xilinx ZYNQ 7000+Vivado2015.2 series ( Four ) And GPIO In three ways :MIO.EMIO.AXI_GPIO 2 Theoretical indication stay PS Side , Yes PS Their own IO pin, be called MIO, common ...

  5. 【 Reprint 】stm32 Stop learning

    There is no doubt that interrupt plays an important role in the development of embedded system , stay C51 The era of single chip microcomputer , Only total 5 A break , among 2 External interrupts ,2 It's a time / Counter interrupt and a serial port interrupt , But in STM32 in , The number of interrupts has greatly increased , And the interrupt settings are more ...

  6. [ Record ] Learn raspberry pie 3B Pick up DHT11 and LCD1602 And changing the time zone for raspberry pie

    Premise The raspberry pie system is set up apache web The server , If not installed , Can be performed in raspberry pie sudo apt-get install apache2 Installation apache It can also be obtained by command GPIO Information : gpi ...

  7. be based on Systick Time delay of system clock LED Flashing light

    1. Review our 51 Single chip programming , When we need to do system delay , One of the most common ways is to use for The empty statement of the loop waits to be implemented . Of course , stay STM32 It can be done in this way . But in STM32 Of Cortex In the kernel ...

  8. cJSON Learning notes Sequel

    0. Preface     This paper attempts to explain how to use CJSON Construct all kinds of JSON Data packets . I have written an article some time ago cJSON The article , So this article becomes " Sequel ".     [ Related blogs ]     [ Front end learning ...

  9. am335x gpio analysis

    /************************************************************************ * am335x_gpio * Main records of this paper am33 ...

Random recommendation

  1. C# Object oriented summary 1

    1. Process oriented -----> object-oriented Process oriented : It's about the process of doing it , The emphasis is on the act of doing it . object-oriented : Find someone to do something for you . It's meant to write a generic code , Shielding differences . We describe an object in code , One ...

  2. go Linguistic print

    Code : package main import ( "fmt" ) type point struct { x, y int } func main() { //Go General Go ...

  3. Centos On DNS The simple construction of the server

    1: Install package yum -y install bind bind-chroot bind-utils bind-libs 2: Modify the configuration file 1): vim  /etc/named.conf 2): In the main ...

  4. Using absolute positioning  And margin Center the implementation elements

    example : Let one width:100px ; height: 100px; Of div, relative body In the middle . div{ width:100px; height:100px; border: 1px solid ...

  5. pacejs The progress bar monitors whether the server data loading is completed

    I remember when I first joined the new company , The company is doing app Inside h5 page . It's not the same process as before . Before all is after writing the static page through ajax Load interface data , This company saves trouble , After writing the static page, throw it to the server , They come to fill in the data , It really saves the front end ...

  6. loading ubuntu + win10 appear grub rescue And deal with it

    Boot up appears grub rescue reason : loading ubuntu + win10 It's possible to destroy the boot file when using dual system . grub rescue Affiliated to the ubuntu management . grub rescue There are very few commands available in , The main ...

  7. [Python]CentOS - ImportError: No module named '_curses'

    I searched a lot of answers on the Internet , Basically Windows In the environment curses The problem of package inapplicability . As a result of this problem linux user , I feel helpless . The reason is that CentOS Upper Department uwsgi, Want to use uwsgitop To monitor . ...

  8. C# The issue of termination of proceedings CLR20R3 resolvent

    Last year, we deployed a C# Automatic update tool software , Recently, some colleagues have reflected that Win7 The system computer can't be installed , The program doesn't install automatically , The installation free version doesn't work . Can't , First, solve the problem of automatic installation , Finally, it can be solved by closing the firewall ...

  9. Security testing  WEB Safety Test Manual

    WEB Safety Test Manual By: Give the guest QQ:1033553122 Welcome to the software performance testing exchange QQ Group :7156436 summary Ø          Purpose Ø          Applicable readers Ø          apply ...

  10. 【HackerRank】Service Lane

     Calvin is driving his favorite vehicle on the 101 freeway. He notices that the check engine light o ...