Section 1 - Introduction
MLGPS-P
User's Guide
9
Firmware and SD Card LED Status Lights
Additional LED statuses are displayed when loading firmware or inserting a microSD card.
A single flash of all LEDs simultaneously means a system reboot and the Bootloader is initialized.
GREEN (POWER LED)
- Fast blinking of the Power LED occurs when the microSD card is inserted but
Files System is not mounted.
▪
If a microSD card could not be mounted after insertion or if the card does not have the proper
formatting (FAT32) the Power LED will continue to fast blink.
▪
In the case of a valid microSD card, the Power LED will fast blink for a couple of seconds while the
File System is mounting, then will resume normal blinking.
RED (CHARGE LED)
- Each flash indicates a failed attempt to initialize the microSD card. This means the
microSD is not inserted or corrupted.
BLUE (GPS STATUS)
- This blinking of this light means the Bootloader is working properly.
▪
If the blue LED is blinking along with any other LED, this indicates the retry logic (see note below)
when initializing the microSD, mounting the File System and opening the Firmware file to update
the NVM memory.
▪
If only the blue LED is blinking, each flash indicates the next 20KB from the Firmware file was
stored to Non Volatile Memory (NVM).
YELLOW #1 (LAN LINK)
- Each flash indicates a failed attempt to perform an operation with the File
System on the microSD. This may mean the Bootloader cannot find Firmware or Backup file on the
microSD, but it can also mean any File System corruption.
YELLOW #2 (LAN ACTIVE)
- Each flash indicates a failed attempt to perform an operation with the NVM
when storing Firmware blocks.
Note - For the operations described above, retries are provided. It may be OK if there are a few failed attempts. But a
continuous error indication means failed operation. When the maximum number of retries is reached, the Bootloader
will reboot.
Warranty
Warranty for the MLGPS-24 is applicable for one year from date of shipment. Warranty does not cover the
battery or failure by misuse or by nature including lightning, flood or other catastrophe.
Should you encounter problems with your MLGPS, see the troubleshooting suggestions in
Section 6 -
Troubleshooting
. For further assistance, contact Canary Systems
at the address listed in the front of this
manual.