SystemBase Eddy DK, Руководство программиста

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Eddy DK Programmer Guide
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Chapter 6. Library Introduction
This chapter introduces useful libraries and API functions that are applicable with Eddy-Serial DK.
6.1 Introduction
All the functions introduced in this chapter are all APIs included in SB_APIs.a of /src/Eddy_APPs/SB_APIs directory.
You also need to mention this library in the Makefile. All sample source codes accompanied with Eddy-DK use this
library, and you can see the source codes and Makefile for more information.
6.2 Makefile
Library is in /src/Eddy_APPs/SB_APIs/ directory, as a form of SB_API.a.
You need to specify in the Makefile in order to use this library, so please refer to the Makefile inside /src/Eddy_APPs/
folder.
6.3 System functions
Timer and delay functions needed for making application program.
SB_GetTick
Function Returns time measured after Eddy has been booted in msec.
Format Unsigned long SB_GetTick (Void);
Parameter None
Returns 0 ~ 4,294,967,295
Notice Returned value is system tick counter in msec unit.
After it reaches the maximum value 0xffffffff of unsigned long type, it
starts from zero again - which is about period of 50 days.
SB_msleep
Function Delays in msec unit.
Format void SB_msleep (int msec);
Parameter msec Configure delay time in msec unit.