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9/28/23, 4:30 PM
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:
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
Ethernet cable
USB to mini-USB cable
CalAmp 4-pin Power cable p/n 5C888
CalAmp programming pigtail, serial adaptor cable p/n 5C940
CalAmp serial cable p/n 134364-SER
4-pin header at location J25.
8.2 Preparation
In the C: drive of the maintenance computer create a folder called tftpboot
C:\tftpboot
Place all of the firmware and u-boot-lmu related files that were provided into the tftpboot folder
Connect the 5-pin connector of the CalAmp serial cable 134364-SER into the AUX1 connector of the LMU-5541™. Connect the DB-9 connector of 134364-SER
to the serial connector or serial adaptor connected to the maintenance computer.
Connect the mini USB to the LMU-5541™ and connect the other end to a USB slot on your computer.
Connect 4-pin power harness SC5888 to the power connector on the LMU-5541™. Connect the wires of the power harness to +12VDC power supply; RED
+12VDC, WHT +12VDC (ignition), BLK Ground
https://puls.calamp.com/wiki/LMU-5541_Hardware_%26_Installation_Guide
LMU-5541 Hardware & Installation Guide - PULS Wiki
Firmware Update
25/29
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