User's Guide

Revision 1.0 STX3 Users Manual
11/5/2013 Revision 1.0 Subject To Change without Notice P a g e | 2
Table of Contents
1 Introduction .................................................................................................................................................................... 3
1.1 Purpose ................................................................................................................................................................... 3
1.2 Applicable Documents ............................................................................................................................................ 3
1.3 Description .............................................................................................................................................................. 3
2 Application ...................................................................................................................................................................... 4
2.1 Theory of Operation ................................................................................................................................................ 4
2.2 Block Diagram ......................................................................................................................................................... 6
3 Physical Charactersistics ................................................................................................................................................. 8
4 Application Programming Interface .............................................................................................................................. 11
4.1 Serial Port .............................................................................................................................................................. 11
4.2 Serial Packet Mode ............................................................................................................................................... 12
4.2.1 Serial Packet Format ..................................................................................................................................... 12
4.2.2 Serial Packet Commands ............................................................................................................................... 13
4.2.2.1 Send Data (0x00) ....................................................................................................................................... 13
4.2.2.2 Query Electronic Serial Number (ESN) (0x00) ........................................................................................... 13
4.2.2.3 Abort Transmission (0x03) ........................................................................................................................ 14
4.2.2.4 Query Bursts Remaining (0x04) ................................................................................................................ 14
4.2.2.5 Query Firmware Version (0x05) ................................................................................................................ 14
4.2.2.6 Setup (0x06) .............................................................................................................................................. 15
4.2.2.7 Query Setup (0x07) ................................................................................................................................... 15
4.2.2.8 Query Hardware Version (0x09) ............................................................................................................... 16
4.3 Example CRC calculation routines for serial packets ............................................................................................ 18
4.4 AT commands ........................................................................................................................................................ 20
5 Test Modes .................................................................................................................................................................... 23
6 REGULATORY APPROVAL .............................................................................................................................................. 25
6.1 Radio Astronomy Site Avoidance .......................................................................................................................... 25
6.2 Regulatory Notices ................................................................................................................................................ 25