Calculating Time for clock's preset

[menta]

If I didn't make it clear, a program can be:
Start 13:10:02
End 13:10:05
HH:MM:SS

[Darrel Taylor]

All those little details help.

Here's another possibility.
Run it once per second. Probably a gosub from the clock's code.

;--Start Time--
Start_Hours   CON 13
Start_Minutes CON 10
Start_Seconds CON 2
;--Stop Time--
Stop_Hours    CON 13
Stop_Minutes  CON 10
Stop_Seconds  CON 5

ProgON        VAR BIT
ProgON = 0

;--sub--
IF Hours = Start_Hours THEN
    IF Minutes = Start_Minutes THEN
        IF Seconds = Start_Seconds THEN
            ProgON = 1
        ENDIF
    ENDIF
ENDIF

IF Hours = Stop_Hours THEN
    IF Minutes = Stop_Minutes THEN
        IF Seconds = Stop_Seconds THEN
            ProgON = 0
        ENDIF
    ENDIF
ENDIF

[menta]

Thanks,
The main risk is if for some reason you loose a check, then you have missed the program start time

[skimask]

Thanks,
The main risk is if for some reason you loose a check, then you have missed the program start time

That's why you use LONG variables, calculate out the # of seconds since midnight then do a comparison, i.e.
If current_time_in_seconds > _on_time_in_seconds then
do-whatever

Or do it the hard way with WORDs and multiple IF/Then And/Or statements...

[amgen]

how about using 2 loops depending on operating output,

if progon=1 then do turnoff checking ' "otherwise"
do turn on checking
'''
'''
'''
turnoff checking stuff
''''
turnon checking stuff

don

[menta]

Calculating time from Midnight is not possible since it more than 16Bit.
Moreover, If start time is 13:00:00 and end time is 01:00:00 will be also a problem.

[menta]

Maybe, checking the Seconds can be with > instead of =, since there is no chance that it will miss for more than few seconds.
Next time if the Program is already On the check will be passed.

[skimask]

Calculating time from Midnight is not possible since it more than 16Bit.
Moreover, If start time is 13:00:00 and end time is 01:00:00 will be also a problem.

Which is why I suggested only counting every other second above....
Or like DT said, you have another bit that'll signify AM or PM...

time_of_day var bit
am con 0
pm con 1

if time_of_day = 0 ' then it must be between 0000 and 1159
if time_of_day = 1 ' then it must be between 1200 and 2359...

Or again, you can use a LONG variable type and use a 32 bit (ok, 31 plug a sign) variable type.