51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
|
Technologic Systems TS-7680 SBC
|
||
|
|
===============================
|
||
|
|
|
||
|
|
This document explains how to set up a basic Buildroot system for
|
||
|
|
the Technologic Systems TS-7680 Single Board Computer.
|
||
|
|
|
||
|
|
The TS-7680 SBC is based on the Freescale i.MX286 ARM ARM926EJ-S
|
||
|
|
running at 454MHz. The TS-7680 features are 10/100 Ethernet ports,
|
||
|
|
Wi-Fi, microSD card, eMMC, NOR Flash, USB host port, CAN ports,
|
||
|
|
relays and ADC/DAC. More details on the board here:
|
||
|
|
https://docs.embeddedTS.com/TS-7680
|
||
|
|
|
||
|
|
The TS-7680 uses a 4.9 Linux kernel provided by Technologic Systems.
|
||
|
|
|
||
|
|
To build the default configuration you only have to run:
|
||
|
|
|
||
|
|
$ make ts7680_defconfig
|
||
|
|
$ make
|
||
|
|
|
||
|
|
The output looks like:
|
||
|
|
output/images
|
||
|
|
├── imx28-ts7680.dtb
|
||
|
|
├── rootfs.ext2
|
||
|
|
├── rootfs.ext4 -> rootfs.ext2
|
||
|
|
├── rootfs.tar
|
||
|
|
├── sdcard.img
|
||
|
|
└── uImage
|
||
|
|
|
||
|
|
The provided genimage configuration generates an image file containing
|
||
|
|
two partitions. The first one is unused, but mandatory as the
|
||
|
|
TS-7680 built-in bootloader loads the Linux uImage from the /boot
|
||
|
|
directory in the second partition. The second partition contains the
|
||
|
|
rootfs with the Linux uImage into the /boot directory.
|
||
|
|
|
||
|
|
$ fdisk output/images/sdcard.img
|
||
|
|
output/images/sdcard.img1 1 1 1 512B 0 Empty
|
||
|
|
output/images/sdcard.img2 2 524289 524288 256M 83 Linux
|
||
|
|
|
||
|
|
This image can be directly written to an SD card.
|
||
|
|
|
||
|
|
$ sudo dd if=output/images/sdcard.img of=/dev/mmcblk0
|
||
|
|
|
||
|
|
To boot with Buildroot, insert this SD card on the board, make sure
|
||
|
|
the SD jumper is present and the U-Boot jumper is not.
|
||
|
|
|
||
|
|
The bootloader comes pre-flashed on the board on an SPI flash. Since
|
||
|
|
updating the bootloader is risky and not trivial, it is not included
|
||
|
|
in the Buildroot defconfig. Refer to
|
||
|
|
https://docs.embeddedts.com/TS-7680#U-Boot for details on
|
||
|
|
which U-Boot config to use and how to flash it.
|