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Name
Treo650PowerOut
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Description
This sample code shows how to power on/off the Multi-connector POWER_OUT
pin on Treo 650.
Features:
- Power On the POWER_OUT pin (Treo 650 Only).
- Power Off the POWER_OUT pin (Treo 650 Only).
Files:
- Treo650PowerOut: Shows how to power on/off the POWER_OUT pin on Treo 650.
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Builds With
CodeWarrior
Gcc
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Devices
Treo 650
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Requirements
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Libraries Used
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How to Run
1. Power On the POWER_OUT pin by tapping on the Power On POWER_OUT button
2. Power Off the POWER_OUT pin by tapping on the Power Off POWER_OUT
button
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Note
WARNING: This sample code uses an ARMlet to power on/off the POWER_OUT
pin on Treo 650. This is not officially supported by Palm. Please use
this at your own risk. Ideally, you should be using the PmConnectorLib,
if available.
Recommendations:
Here is what needs to be done in the application:
#if (CPU_TYPE != CPU_68K) || (defined BUILDING_PMCONNECTOR_LIB)
#define PMCONNECTOR_LIB_TRAP(trapNum)
#else
#include <LibTraps.h>
#define PMCONNECTOR_LIB_TRAP(trapNum) SYS_TRAP(trapNum) #endif
#define kPmConnectorLibType sysFileTLibrary
#define kPmConnectorLibCreator 'PmAt'
#define kPmConnectorLibName "PmConnector"
#define kPmConnectorLibTrapOpen sysLibTrapOpen
#define kPmConnectorLibTrapClose sysLibTrapClose
#define kPmConnectorLibCtrlPowerOn 0x01
#define kPmConnectorLibCtrlPowerOff 0x02
Err
PmConnectorLibOpen (UInt16 refNum)
PMCONNECTOR_LIB_TRAP (kPmConnectorLibTrapOpen);
Err
PmConnectorLibClose (UInt16 refNum)
PMCONNECTOR_LIB_TRAP (kPmConnectorLibTrapClose);
Err
PmConnectorLibControl (UInt16 refNum, UInt16 cmdId, void *parmP)
PMCONNECTOR_LIB_TRAP (sysLibTrapCustom + 1);
// Send Power to the Power_out pin
{
// Try to find the library
err = SysLibFind( kPmConnectorLibName, &refNum );
if ( err != errNone )
err = SysLibLoad( kPmConnectorLibType, kPmConnectorLibCreator,
&refNum );
if ( err )
{
// Use the Armlet to Power on the POWER_OUT Pin (See Sample code for more details)
}
else
{
PmConnectorLibOpen( refNum );
PmConnectorLibControl( refNum, kPmConnectorLibCtrlPowerOn, (void *)NULL);
PmConnectorLibClose( refNum );
}
}
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