Home > CalAmp > CalAmp LMU-5541 Telematics Router Installation Guide

CalAmp LMU-5541 Telematics Router Installation Guide

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LMU-5541 Hardware & Installation Guide - PULS Wiki

7.7 Toggle between Access Point and Client Mode

You can switch between Access Point and Client Mode by changing Parameter 3901 (WIFI_MODE) and restarting the Wi-Fi interface.

Putting unit into Access Mode:

>>at$app param 3901,0,”ap”

>>at$app peg action 190 1

Putting unit into Client Mode:

>>at$app param 3901,0,”sta”

>>at$app peg action 190 1

7.8 Supported and Tested Wi-Fi Related Parameters

WIFI_AUTH = 3900 //16-char - AUTh mode

WIFI_MODE= 3901 //16-char - Mode of operation "ap" or "sta"

WIFI_SSIDL= 3902 //64-char - SSID of the network

WIFI_ENCRYPTIONL= 3904 //16-char - encryption method

WIFI_KEYL= 3905 //64-char - the pre-shared key (psk)

WIFI_EAP_TYPE= 3909 //16-char - EAP type for WPA/WPA2

WIFID_CHANNEL= 3950 //16-char - the channel number to operate on

WIFID_DISABLED= 3951 //unsigned 8 bits- to disable wireless network 1:enable, 0:disable

WIFID_TXPOWER= 3954 //32 bit - transmit power

8 Firmware & Co-Processor Update

Note: This section will program the u-boot, root file system, and kernel, on the IMX processor. The second section will program the Co-Processor. If you would like to

simply upgrade the Firmware of adevice that already has the u-boot, root file system, etc., please go to the follow section of the Wiki: Firmware Update

The LMU-5541™ features two processors.

IMX, the Linux processor

STM8, the co-processor

The Firmware for the two processors in the LMU can be manually loaded.

Updating the firmware is performed in two sections, one section for each processor. The first section will program the u-boot, root file system, and kernel, on the

IMX processor. The second section will program the Co-Processor.

Note: Note: During the u-boot update everything will be erased including the ESN, so please make a note of the ESN.

View ESN type: AT#ESN? <Enter>

8.1 Requirements

Maintenance computer with serial connector or serial adaptor

Download and install two programs: TFTP32 or TFTP64, and WinSCP. If your computer is a 64 bit version, then download tftpd64

tftpd download

winscp download

All Firmware related files

Co-processor image.bin file

Terminal emulation program such as HyperTerminal, Putty, TeraTerminal, set to a Baud Rate of 115200

Power supply +12VDC