Acrosser Technology AR-V6002FL, User Manual, Page: 73 / 84

Revision: 1.23
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not zero.
2. Syntax:
int startWatchdog(unsigned char ucUnit, unsigned char ucValue)
Description: This function sets the watchdog timer register to the value ‘ucValue’ and starts to
count down. The value could be 0 ~ 255. The unit is second. Setting the timer register to 0
disables the watchdog function and stops the countdown.
Parameters: The parameter ‘ucUnit’ is the unit to set to watchdog timer register. ‘0’ indicates
second. And ‘1’ indicates minute. The parameter ‘ucValue’ is the value to set to watchdog timer
register. The range is 0 ~ 255.
Return Value: If the function gets the values successfully, it returns 0. If any error, it returns
not zero.
4.3.3 Power Subsystem
Under linux platform:
1. Syntax:
i32 getIgnStatus( u8 *ignStatus )
Description: Get the current ignition status. The ignition has two statuses: ON or OFF.
Parameters: This function puts the ignition status at the memory pointed by the unsigned
character pointer ‘ignStatus’. If the returned status is 0xa5, the ignition is ON. If the returned
status is 0x5a, the ignition is OFF. There are macros of Ignition ON and Ignition OFF in
pwr_acce.h.
Return Value: If the function gets the ignition status and put it at the memory pointed by the
argument successfully, this function will return 0. If any error, the function returns –1.
2. Syntax:
i32 setSoftOffDelayS( u32 setTime )
Description: The Soft Off Delay is the interval between that the system receives a power off
signal and that the system generates a power off signal. This function sets up the interval in
seconds.
Parameters: The parameter is of the type of unsigned long. The value of the parameter ranges
from 0~255. The unit of the value of the parameter is seconds.