Hi Rob,
Sorry, I was busy to unexpeted work during this week and worked very late
everyday.
You have to use the firmware I sent earlier.
I would create a main process that evaluate start conditions and initate sub
process that handle the action until duration.
some comments in your code below.
I will write you a sample skeleton later today.
Pascal
2010/3/27 Rob Conway <rjcon...@bigpond.com>
> Hi,
>
> I was hoping to get some feedback on the AE engine and creating some simple
> output timers based upon energizing outputs based on time of day. I can
> already set the RTC from the HOST and it resets at midnight, so the RTC
> represents seconds since midnight.
>
> This is what I am trying to achieve on the stack
>
> IF RTC > ON_TIME and RTC <(ON-TIME+DURATION)
> then DUTY1,0
> else DUTY1,10001
>
> This is some rough code I thought I could use however not tested, I wanted
> to know if I was on the correct track and if the stack can handle maths
> results that go negative.
>
yes,
for Byte, values above 127 are considered negative
for Word, values above 32767 are considered negative
for Long, values above 2147483647 are considered negative
>
// ON / OFF TIMES (Seconds)
> // L_UserN ON time for Relay1 Seconds since Midnight
> // W_UserL Duration for PIO Duration for relay ON time, seconds
>
what's the max duration? ,maybe fit in 255 range or 65535 to use B or W
instead variable.
>
>
> relay1_ctl:
> CMP.L L_RTC,L_USERL
> BLE relay1_off
>
> PUSH.L L_RTC //Get time since midnight
> PUSH.L L_USERN // get user ON time in seconds since midnight
> SUB // Find out how many seconds difference
> between RTC and on time
> CMP.W @-1, W_USERL // See if difference is less than Duration, if so
> the output should be ON
>
as operands are L_ types, use CMP.L, also, @-4 needed for the L_ type who
require 4 bytes
important to retore stack pointer to inital value after stack operation AIX
-4
> BGR relay_off
> BLE relay_on
> END
>
> relay1_on
> SET.W W_DUTY1,0
> BRA Relay2_ctl
>
> Relay1_off
> SET.W W_DUTY1,10001
> BRA Relay2_ctl
>
>
> relay2_ctl:
> ~ code similar to relay 1
>
>
>
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--
Pascal
www.brain4home.eu
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