Lanner LEC-7920 - Page 23

23
Programming Watchdog Timer
Embedded and Industrial Computing
Appendix A
“ F81865_test Sleep
milliseconds\n”\
“\n”\
“Argement:\n”\
“ DIO_IN Read state from DIO
In.\n”\
“ DIO_OUT Set DIO Out state.\n”\
“ PIO Set PIO LED state.\n”\
“ RunLED Set RUN LED state.\n”\
“ AlarmLED Set Alarm LED state.\n”\
“ GPS_LED Set GPS LED state.\n”\
“ WirelessLED Set Wireless LED state.\n”\
“ Watchdog Set
Watchdog timer.\n”\
“ CaseOpen Check case opened state.\n”\
“ CaseOpen_Clear Clear case open state.\n”\
“ port_number The port number.\n”\
“ value 1 for on and 0 for off.\n”\
“ seconds The
watchdog count down seconds. 0 for disable.\n”\
“ milliseconds Milliseconds to
delay\n”
#define RETMSG(a,b) {printf (b) ; return a;}
#define CHECK_ARGC(a) {if (argc
!= a) throw PARAMETER_HELP ;}
// Translate Hex string to a long value
LONG Hex2Long (char *str)
{
LONG nLong ;
if (scanf (str, “%x”, &nLong) != 1)
throw “Error parsing parameter\n” ;
return nLong ;
}
// Make sure the argument is numeric
void CheckNumeric (char *szBuf)
{
int nLen = strlen (szBuf) ;
for (int i = 0 ; i < nLen ; i++)
if (!strchr (“01234567890ABCDEFabcdef”, szBuf[i]) )
throw “Wrong argument\n” ;
}
// Common GPIO output function definition
#define GPIO_OUT(a,b,c) \
int a (int argc, char *argv[]) \
{
\
CHECK_ARGC (4) ;
\
CheckNumeric (argv[2]) ; \
CheckNumeric (argv[3]) ; \
\
int nPort = atoi (argv[2]) ; \
int nValue = atoi (argv[3]) ; \
\
c (nPort, nValue) ;
\
\
printf (b “ #%d = %d\n”, nPort, nValue) ; \
\
return 0
; \
}
// Function generate by common function definition
GPIO_OUT (mDIO_
OUT , “DIO_OUT” , Write_DIO)
G P I O _ O U T
(mPIO , “DIO_OUT” , PIO)
G P I O _ O U T
(mRunLED , “RunLED” , RunLED)
G P I O _ O U T
(mAlarmLED , “AlarmLED” , AlarmLED)
GPIO_OUT (mGPS_
LED , “GPS_LED” , GPS_LED)