Embedded Application Programming Interface - picmg
Embedded Application Programming Interface - picmg
Embedded Application Programming Interface - picmg
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2 General<br />
<br />
<br />
<br />
<br />
<br />
<br />
COM Express specifies functions for industrial applications which do not feature a common<br />
programming interface. Target is to avoid software modifications when changing COM Express<br />
module suppliers. This section describes a proposal for a common API to unify the software control<br />
for:<br />
System information<br />
Watchdog timer<br />
I2C Bus<br />
Flat Panel brightness control<br />
User storage area<br />
GPIO<br />
The EAPI definition is open to be used for other embedded form factors too.<br />
2.1 Parameters<br />
Parameters which can return a value are defined as pointers to the data. The other parameters are<br />
defined as values. The immediate return value is an error code.<br />
Parameters should be validated using 'Atomic Error Checking'(See chapter 1.5 page 9).<br />
PICMG® EAPI R1.0, August 8, 2010 page 15 of 83
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