am335x

Links: http://blog.csdn.net/hudaweikevin/article/details/10376585 David_huBoot order (for TI OMA3 EVM)The general boot order for Linux is: BOOT ROM X-loader U-boot Linux When power is on, the boot of the OMAP device starts from the boot ROM inside the CPU, and this part of the code is cured at the time of the factory and cannot be changed. The boot ROM looks for the first external bootloader by reading the configuration of the external boot pin. The devices you can look for are

Example#include #include #include #include #define GPIO_TO_PIN (Bank, GPIO) (+ * (Bank) + (GPIO))int main (int argc, char * argv){int i, n, FD;Char num;int ret;FD = open ("/dev/kio", O_RDWR); Turn on the deviceif (FD {printf ("Can ' t open/dev/kio!\n");Exit (1);}Sleep (1);IOCTL (FD, 1, Gpio_to_pin (1,22)); Set Gpio1-22 to Output (USER:LED3)IOCTL (FD, 0, Gpio_to_pin (2, 1)); Set gpio2-1 as input (p8-18)while (1){num = 1;ret = write (FD, "1", Gpio_to_pin (1,22));if (Ret {Perror ("write");return-1;

[Email protected]: ~Aplay-l* *** List of playback hardware devices ****Card 0: audio [pcm051 audio], device 0: wm8976 wm8976-hifi-0 []Subdevices: 1/1Subdevice #0: subdevice #0[Email protected]: ~Arecord-l** ** List of capture hardware devices ****Card 0: audio [pcm051 audio], device 0: wm8976 wm8976-hifi-0 []Subdevices: 1/1Subdevice #0: subdevice #0Card 1: Camera [USB 2.0 Pc camera], device 0: USB audio [USB audio]Subdevices: 1/1Subdevice #0: subdevice #0 Aplay-f CD-D plughw: 0, 0/home/1.wav//

/* Compile command: Arm-linux-gcc-o show2642 264showyuv2.c-i/usr/local/ffmpeg_arm/include/-l/usr/local/ffmpeg_arm/lib/- lswresample-lavformat-lavutil-lavcodec-lswscale-lx264 libsdl.a*/#include "stdio.h" #include "stdlib.h" #include "Lib Avformat/avformat.h "#include" libavdevice/avdevice.h "#include" libswresample/swresample.h "#include" libavutil/ Opt.h "#include" libavutil/channel_layout.h "#include" libavutil/parseutils.h "#include" libavutil/samplefmt.h "# Include "Libavutil/fifo.h" #include

/* ********************************************************************* * instructions for porting the Linux kernel mainline code * for am335x: * Mariannazhu to am335x do the Linux kernel porting when the blog, record, maybe later * use to get. * 2016-12-5 Shenzhen Nanshan Ping Shan Village Zengjianfeng ***************************************************

#!/bin/sh## ti Processor SDK Linux am335x EVM/bin/commom.sh hacking# Description: # This article mainly explains the common.sh script in TI's SDK, in order to understand its working mechanism. ## .-4- -Shenzhen Nanshan Ping Shan Village Zengjianfeng # This distribution contains contributions or derivatives under copyright# asfollows:## Copyright (c) ., Texas Instruments incorporated# All rights reserved.## redistr

Tags: bad san sans ash application the HTML Inpu CPPStart by borrowing a diagram to illustrate the relationship between Linux applications and the kernel! [] (http://i2.51cto.com/images/blog/201807/28/ce7cdc22c42c5b93bd5604c0ba1878db.png?x-oss-process=image/ watermark,size_16,text_qduxq1rp5y2a5a6i,color_ffffff,t_100,g_se,x_10,y_10,shadow_90,type_zmfuz3pozw5nagvpdgk=)Unlike bare-metal programs, application development under Linux does not directly access hardware, but is driven by application cal

#!/bin/sh## ti Processor SDK Linux am335x EVM/bin/setup-minicom.sh hacking# Description: # This article mainly on the TI SDK in the setup-The minicom.sh script is interpreted in order to understand # its working mechanism. ## .-4- -Shenzhen Nanshan Ping Shan Village Zengjianfeng # This distribution contains contributions or derivatives under copyright# asfollows:## Copyright (c) ., Texas Instruments incorporated#

/*arm-linux-gcc-o yuv2264 yuv2264.c-i/usr/local/ffmpeg_arm/include/-l/usr/local/ffmpeg_arm/lib/-lswresample- lavformat-lavutil-lavcodec-lswscale-lx264 libsdl.a*/#include "stdio.h" #include "stdlib.h" #include "libavformat/ Avformat.h "#include" libavdevice/avdevice.h "#include" libswresample/swresample.h "#include" libavutil/opt.h "# Include "Libavutil/channel_layout.h" #include "libavutil/parseutils.h" #include "libavutil/samplefmt.h" #include " Libavutil/fifo.h "#include" libavutil/intreadwrit

To be familiar with a platform, should be tired of looking at the document to see the code to do the experiment. To English bad I, sometimes fall into a circle, would rather Baidu, drilling code not willing to spend time in English documents above, feel the efficiency will be almost. In fact, I know English documents can be proficient in understanding, in fact, the efficiency will be a little higher. Here are a few links to reserve: http://processors.wiki.ti.com/index.php/Category:AM335x here i

This article is reproduced from Nidetech blog Chip-to-uboot start-up process     ROM→SPL→UBOOT.IMG introduction     ROM code in 335x is the first level of Bootlader. When the MPU is power on, it will automatically execute the code here, complete

Author: DriverMonkey Phone: 13410905075 Mail: bookworepeng@hotmail.com QQ: 196568501 Because DDR2 is used for development and DDR3 is used in our project, we need to modify it. 1. At the beginning of the debugging, debug DDR3 according to the

InitrdTranslate this page to Initrd AfterKernel booted, it tries to mount a file system. Using Linux on DaVinci, there are several options where this file system can come from. Options are Harddisk or CompactFlash card MMC/SD card

  This article implements a uboot boot display logo for am35xskevm.1. Download the bare metal driver package StarerWare from TI official website.2. Find the following function in main of rasterDisplay. c and make the following changes:// Enable

Mail: bookworepeng@Hotmail.com QQ: 196568501 Author: drivemonkey Undertake various embedded outsourcing projects (phone: 13410905075) Two tools are available for Linux to debug gpio. Dubugfs The other is the gpio driver framework of

1) create a root file system. To create a root file system, copy the required root file to a directory and compress it with the compression command in the specified format. 2) Compile the file system into the kernel. The specific method is to

Mail: bookworepeng@Hotmail.com QQ: 196568501 Phone: 13410905075 Author: drivermonkey -Welcome to the discussion 1) create a root file system. To create a root file system, copy the required root file to a directory and compress it with

The main reference is the 8th chapter of Am335x's TRM PRCM module and the 13-chapter LCD Controller. Here in the LCD controller inside the configuration described in more detail, the frequency division and pixel, the setting of the extinction value

Driver: #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define GPIO_TO_PIN(bank, gpio) (32 * (bank) + (gpio))struct fpga_key_dev { struct cdev cdev;

/******************************************************************************* * Linux Shell Ls-1 Column Display file * Description: * Sometimes when writing shell scripts, it is often necessary to list the files in a column, and then the * for iteration, before the general use of Ls+awk to do, in fact, LS itself provides this function. * 2016-3-16 Shenzhen Nanshan Ping Shan village Zengjianfeng ****************************************************** ************************/examples are as fol