Table of Contents
Advertisement
This number converted to decimal (base 10) is: 12,579,947.
Since this result is greater than 180 degrees, subtract 360 degrees from the result to create the correct signed
representation.
269.936378 degrees – 360 degrees = -90.063622 degrees = 90.063622 degrees WEST
4.7 Flash Memory Map (TBD)
5 Test Modes
5.1 Hardwired Method
The ST100 BOARD provides several test modes intended to aid in manufacturing testing and certification testing.
All test modes are activated by grounding selective pins on the ST100 BOARD prior to applying power. Once power is
applied, the ST100 BOARD will sample the states of the pins and based on the states of the pins, the ST100 BOARD will
enter the selected test mode. For normal operation these pins must be left floating or in a high (logic 1) state.
A typical implementation is to rig small switches to these pins so that turning the switch on connects the pins to ground.
Such a "rigged" board is then sent to the regulatory test house with instructions on how to set the switches to enable
each mode. The switches should be set to select the desired mode, then power applied, then measurements taken.
Power should be switched off before selecting another mode.
In the table below, the TEST1, TEST2, RX and RTS pins come up on the board as follows.
TEST1 – On Test Point 28 and edge connector pin 7.
TEST2 – On Test Point 29 and edge connector pin 6.
RX – On Test Point 46
RTS – On Test Point 15
The following tables define the different test modes available in the ST100 BOARD.
TEST1
TEST2
0
0
Use or disclosure of data contained on this sheet is subject to the restrictions in the Distribution Statements on the title page of this
06/18/20
12,579,947 * (180.0 / 223) = 269.936378
Mode
Mod Mode (continuous transmission) - A test packet is continuously
transmitted until power is removed from the board. The test packet
shall comply with the Air Interface Packet format with a user
information equal to the hex stream 0x80AAF0F0F0AAF0F0F0 where
the most significant bit is transmitted first
GLOBALSTAR PROPRIETARY AND CONFIDENTIAL INFORMATION
document.
Subject to Change without Notice
P a g e | 76
Advertisement
Table of Contents
