Multiple IF-THEN statements

I know it is late and maybe that is the problem. I am trying to run multiple IF-THEN statements. Individually they work fine, but combining them does not. The combined statements assemble fine. BTW, I am reading a clock chip and after every minute rollover, I cycle a cooling fan approx 7 seconds at the 0 second point and 30 second point. I may have to adjust this time (or increase the number of cycles) so I want to be flexible. Where am I missing it?

IF (rtcsec >= $00) AND (rtcsec <= $07) THEN
portb.7 = 1
IF (rtcsec >= $30) AND (rtcsec <= $37) THEN
portb.7 = 1
ELSE
portb.7 = 0
ENDIF
ENDIF

try this;

Code:

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IF rtcsec <= $07 OR (rtcsec >= $30 AND rtcsec <= $37) THEN
  portb.7 = 1
ELSE
  portb.7 = 0
ENDIF

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Quote:

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Originally Posted by DavidK

I know it is late and maybe that is the problem. I am trying to run multiple IF-THEN statements. Individually they work fine, but combining them does not. The combined statements assemble fine. BTW, I am reading a clock chip and after every minute rollover, I cycle a cooling fan approx 7 seconds at the 0 second point and 30 second point. I may have to adjust this time (or increase the number of cycles) so I want to be flexible. Where am I missing it?

IF (rtcsec >= $00) AND (rtcsec <= $07) THEN
portb.7 = 1
IF (rtcsec >= $30) AND (rtcsec <= $37) THEN
portb.7 = 1
ELSE
portb.7 = 0
ENDIF
ENDIF

---

Here is why yours did not work - all I did was format your IF-Thens

Code:

---

IF (rtcsec >= $00) AND (rtcsec <= $07) THEN
        portb.7 = 1
        IF (rtcsec >= $30) AND (rtcsec <= $37) THEN
                portb.7 = 1
        ELSE
                portb.7 = 0
        ENDIF
ENDIF

---

As you can see in order for the code to reach your between 30-37 check, the first condition must be true (between 0-7) - go with Jerson's version or two separate checks like you said you had working.

Quote:

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Originally Posted by paul borgmeier

.... - go with Jerson's version ...

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Who is Jerson ?


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Hi,

May be we could simplify ...

RTCSEC is ALWAYS >= 0 with PbP ... huh ...


IF ( RTCSEC & $F0) = 0 or 3 ... AND
IF RTCSEC & $0F < 8 ... PortB.7 = 1

Else Portb.7 = 0

so,

IF (( rtcsec & $F0 = 0 ) OR (rtcsec & $F0 = $30 )) AND ( rtcsec & $0F < 8 ) THEN
PORTB.7 = 1
ELSE
PORTB.7 = 0
ENDIF

...


Alain

PS: Hi Sayzer ... you've also got one point !!!

WOW !! That simple. I was real foggy last night. Tried the code suggestion and it works perfect. Now hopefully I can get by with just two cooling’s otherwise I have to install a temperature sensor, wich I might do anyway. Fans make noise.

Thanks everyone for your help and explanations

Quote:

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Originally Posted by sayzer

Who is Jerson ?


--------------

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MY apologies - Please substitute Sayzer for Jerson. That is what staying up to 4AM gets me. Jerson regularly contributes and for some reason, I mixed you up when I was writing my reply? (I hope neither of you are offended by that - if you are, next time either of you are in SLC, UT, I will by you a beer or a beverage of your choice).

Paul

Quote:

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Who is Jerson ?

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Hey, that's me. No offence taken Paul. I am in a way lucky to be entitled to one of your free beers/beverages. Thanks.

Jerson

Quote:

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Originally Posted by paul borgmeier

...Please substitute Sayzer for Jerson. ...

Paul

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Which one is correct ?

"Please substitute Sayzer for Jerson" OR "Please substitute Jerson for Sayzer ".


I am confused a little there.

Is it something with my English or my understanding?

P.S. - Not offended of any kind...
--------------------

IF A=B... will B=A ? :D

Hi, Steve

You're Wrong ...

Here you will find ALL "SAYZER" or ALL "JERSON" ...

no "equality" between them anywhere ...

Let's say ...

Give back to Sayzer what's Jule's ... ( Approximate joke ... but I really love it ... ever heard of Jules Sayzer ??? ... "tu quoque mi fili, "etc,etc ...)

and give back to Jerson ... What's jerson's ...

Alain

LMAO! Jule Sayzer :D