User's Manual

LS5B User Manual

Libre Wireless Technologies User Manual: LS5B, Ver. 1.0 Page 25 of 89

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3.4. U-Boot Update

3.4.1. TFTP Method

To update the U-Boot for LS5B module using TFTP proceed as below

Step 1. Install TFTP server in Win 7 laptop / PC

You can download the TFTP server from web

Step 2. Store Image.bin file, in the same folder as TFTP is placed

Disable the firewall in windows laptop / PC. Firewall will block the

file from being loaded.

Step 3. Connect the PC and module with Ethernet cable

Step 4. Set Static IP 10.10.10.3 for the Laptop/PC

go to Control Panel > Network Configuration > Local Area Connection > Properties

> TCP/IPv4 > Properties

Step 5. Power on the board and connect the EVK to the USB port of PC

Step 6. Open serial port terminal (57600-8-N-1) to access system Shell

Step 7. Start TFTP server in laptop / PC

Step 8. Restart the module by issuing the command #reboot in terminal

Restart the module using the Reset button in EVK

Step 9. In the U-Boot options, select option 1 in the terminal within 1 second

Step 10. Answer 'Y' or 'N' for the warning message prompted to proceed with the

update