8,367
edits
Changes
no edit summary
When programming the system, the jumper cap connection method is as follows.
<div>[[文件:Orange-pi-3g-iot-img20.png|500px|]]</div>
<br>
=== '''3G-iot-A linux firmware burning''' ===
<br>
Burn the preloader, lk, boot.img to the on-board nand flash with the burning tool.
<div style="border:1px solid #dddddd;background:#f1f1f1;padding:5px;">
├── boot.img<br>
├── boot_nand.img<br>
├── boot_sd.img<br>
├── lk.bin<br>
├── logo.bin<br>
├── MT6572_Android_scatter.txt<br>
├── preloader_hexing72_cwet_lca.bin<br>
└── rootfs.img
</div>
The previous "Android Firmware Burning" has introduced how to use the burning tool, so I won't go into details here, just open the burning tool directly.<br>
a.We click on the far right of the Scatter-loading File column And select the path of Scatter File, as shown below.
<div>[[文件:Orange-pi-3g-iot-img21.png|800px|]]</div>
<br>
b.Disconnect the board from the PC first, and click the Download button
<div>[[文件:Orange-pi-3g-iot-img22.png|800px|]]</div>
c.Next, use a USB download cable to connect the host's USB to the machine's MircoUSB interface.
<div>[[文件:Orange-pi-3g-iot-img23.png|800px|]]</div>
d.Only the lk and kernel were burned in the front. Since 3G-iot-A only has 512M on-board storage, there is a problem of insufficient space, so you need to burn the rootfs to a TF card, and prepare a TF card with more than 8G and class10. After formatting. Burn roofs.img as follows
<br>
<div style="border:1px solid #dddddd;background:#f1f1f1;padding:5px;">
pv rootfs.img | sudo dd of=/dev/sdb bs=1M
</div>
<br>
sdb is the device file corresponding to the TF card<br>
If it is a windows system, you can also use Win32DiskImager software to burn.<br>
<br>
Insert the tf card into the board, and it can start after power on. (Note that 3G-iot-A and other two LED lights are on, then plug in the serial port, otherwise it will not start)
<div>[[文件:Orange-pi-3g-iot-img39.png|600px|]]</div>
<br>
=== '''3G-iot-B linux firmware burning''' ===
<br>
The board has 4G of onboard storage, so you can burn all the images directly to the onboard EMMC.<br>
a.We click on the far right of the Scatter-loading File column<br>
And select the path of Scatter File, as shown below<br>
<br>
<div>[[文件:Orange-pi-3g-iot-img24.png|800px|]]</div>
<br>
b . First disconnect the board from the PC and click the Download button<br>
<br>
<div>[[文件:Orange-pi-3g-iot-img25.png|800px|]]</div>
<br>
C. Next, use a USB download cable to connect the host's USB to the machine's MircoUSB interface. Burning completed
<div>[[文件:Orange-pi-3g-iot-img26.png|800px|]]</div>
<br>
Start the system.<br>
Connect the board to a 5V2A power adapter. Connect the serial port to see the system startup。
