User's Manual

LS5B User Manual

Libre Wireless Technologies User Manual: LS5B, Ver. 1.0 Page 23 of 89

Libre Confidential

3.3. BSL Update

The BSL is a one type of boot loader that facilitates upgrade of Application Image on to the

LSx module. Below section describes procedure to program the BSL on to LSx Module.

3.3.1. TFTP Method

To update the BSL 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 serial cable from Serial port of 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 a in the terminal within 1 second

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

update