GPS Board v3.0 r1.1

This board is designed for ECEN-435 at the University of Nebraska-Lincoln (Scott Campus). GPS coordinates will print via CAN every 4 seconds. All GPS information sent over CAN is ASCII encoded. To obtain a lock, you must have a direct line of sight to the sky!! For CAN transmissions to work properly, the CAN resistor header (CAN R) must be shorted, allowing for proper termination.

Example Messages:

Message with no GPS Lock: LA00.00NLO000.0E

Message with GPS Lock: LA41.14NLO096.0W

CAN Parameters

CAN is enabled by default at 100 kbps with the following parameters.

Bit Timing Parameters: System Clock --> HSI48 Prescaler (for Time Quantum) --> 120 Time Quanta in Bit Segment 1 --> 2 Times Time Quanta in Bit Segment 2 --> 1 Time ReSynchronization Jump Width --> 1 Time

All Basic Parameters --> Disabled

Advanced Parameters: Operating Mode --> Normal

Firmware

The entire CubeIDE project for the STM32F042F4P6 is found in the Firmware folder.

Connections

Board