| 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://wiki.embeddedarm.com/wiki/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://wiki.embeddedarm.com/wiki/TS-7680#U-Boot for details on |
| which U-Boot config to use and how to flash it. |
