Post-90s: first article on embedded software development (embedded environment Construction)

Just a few days into the company, with am355x-A8 for medical equipment software development.

1. Install the sdk and build the compiling environment

Company ti-sdk-am335x-evm-05.05.00.00, download click to install to the user directory

Enter: export PATH = "<sdk install dir>/linux-devkit/bin: $ PATH" on the terminal"

Ii. Compilation and installation of u-boot and MLO

1. Clear Historical Resources and delete project Directories

$ Make CROSS_COMPILE = arm-arago-linux-gnueabi-ARCH = arm distclean

$ Rm-rf./am335x

2. Compile u-boot and MLO

(Target file corresponding to the Development Board Model)

Board make target
AM335x EVM am335x_evm
BeagleBone am335x_evm
AM3517 EVM am3517_evm
AM37x EVM omap3_evm
BeagleBoard omap3_beagle

$ Make O = object-directory CROSS_COMPILE = arm-arago-linux-gnueabi-ARCH = arm make_target_from_table_above (am335x_evm is used here)

The u-boot.img and MLO are generated to prepare for subsequent installation of SD

3. install Linux Kernel

1. Clear kernel resources

Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-mrproper

Cd <sdk install dir>
Make linux_clean

2. Configure the kernel

Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-<config>

Config:

Device SDK config PSP config

AM335x/Beaglebone tisdk_am335x-evm_defconfig am335x_evm_defconfig
AM37x tisdk_am37x-evm_defconfig-omap3_evm_defconfig
AM3517 tisdk_am3517-evm_defconfig am3517_evm_defconfig
Beagleboard tisdk_beagleboard_defconfig omap3_beagle_defconfig
AM180x tisdk_am180x-evm_defconfig da850_omapl138_defconfig

Am335x usage:

Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-am335x_evm_defconfig
Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-tisdk_am335x-evm_defconfig

3. Configure menuconfig

Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-menuconfig

4. Compile the kernel and modules

Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-uImage

Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-modules

Cd <sdk install dir>
Make linux

5. Install the kernel

Make ARCH = arm CROSS_COMPILE = arm-arago-linux-gnueabi-INSTALL_MOD_PATH = <path to root of file system> modules_install

Cd <sdk install dir>
Make linux_install

4. Create an SD card for startup (insert the SD card)

1. Run the script file required for SD card startup

Host # sudo <sdk install dir>/bin/create-sdcard.sh

2. Select an SD card device

Availible Drives to write images:

# Major minor size name

1: 8 16 7761920 sdb

Enter Device Number:

Select 1

3. Partition the SD card

Wocould you like to re-partition the drive anyways [y/n]: y

Number of partitions needed [2/3]: 2

4. Select an image to install

######################################## ########################################

Choose file path to install from1) Install pre-built images from SDK2) enter in custom boot and rootfs file paths ################################ ######################################## ########

Choose now [1/2]: 1

The SD card is created successfully.

The Development Board environment has been set up.