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FirstGPS Starter Kit Overview
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FirstGPS Starter Kit User Guide
1.2.1
Input/Output Interface
The Starter Kit contains a complete sample FirstGPS implementation,
described in Starter Kit Components, page 9. The sample hardware
core is the Measurement Platform Module (MPM), described on
page 9. The sample host software application is a Windows-based
program described in detail in Chapter 2, Using the Starter Kit. The
sample power interface, antenna interface, and the serial interface
between MPM and host CPU are provided by the motherboard
housing the MPM.
FirstGPS Hardware Core
There are two FirstGPS ASICs, an RFIC (Colossus) and a DSP ASIC
(IO). These two chips—combined with a voltage regulator, a Surface
Acoustic Wave (SAW) filter, and a crystal oscillator—create the GPS
function hardware core. Figure 1.1 shows the block diagram of this
hardware core.
The MPM in the FirstGPS Starter Kit is a sample board layout of the
GPS hardware component. The MPM board is described in
Measurement Platform Module (MPM), page 9. Layout depends upon
the customer’s application. Proper board layout is crucial to good
RF performance.