"Select Case" Help

Is there a way to isolate a range of numbers in a case statement?

I've used this:

Select Case Voltage
Case is < 512
Expression...
End Select

But what if I want numbers less than 512 AND greater than 256??!

Tried this...didn't work:
Case is < 512 and is > 256

Tried this...didn't work:
Case 256 to 512

Tried this...didn't work:
Case 256:512

Any ideas how to do this? Basically I'm trying to type the code below in a more elegant way. I'm using IF-THEN's at the moment but since there is no ELSEIF command I have 4 separate blocks. I would like one block so I can use an ELSE statement (or in this situation a CASE ELSE). If I use an ELSE statement in the fourth block that ELSE statement will ALWAYS operate if the fourth block is false (even if one of the first 3 blocks is true)...NOT GOOD CODING!

PLEASE HELP!

If (Voltage <=256) and (Voltage > 0) Then
PORTC = %0001
PAUSE 100
Endif
If (Voltage <=512) and (Voltage > 256) Then
PORTC = %0010
PAUSE 100
ENDif
If (Voltage <= 768) And (Voltage > 512) Then
PORTC = %0100
Pause 100
endif
If (Voltage <= 1023) and (Voltage > 768) Then
PORTC = %1000
Pause 100
ENDif

How can I do this with Case Statements??

Thanks in advance!
-Brian

I know this doesn't answer your question.
But perhaps all you need is ...

Code:

---

    PORTC = DCD Voltage.HighByte
    PAUSE 100

---

Code:

---

<font color="#000080"><i>

</i></font>Temp <font color="#000080"><b>VAR WORD

</b></font>Temp = <font color="#FF0000">512 </font>- voltage <font color="#000080"><i>' Voltage

</i><b>SELECT CASE </b></font>Temp

    <font color="#000080"><b>CASE IS </b></font>&lt; <font color="#FF0000">256 </font><font color="#000080"><i>' Voltage is greater than 256.
   
</i><b>END SELECT
</b></font>

---

bmsherma, Try this...

SELECT CASE VOLTAGE

CASE < 257
PORTC = %0001

CASE < 513
PORTC = %0010

CASE < 769
PORTC = %0100

CASE < 1024
PORTC = %1000

END SELECT
Pause 100

I use this construct when determining groups of numbers. You start with the smallest and move up to the largest.

Dave Purola,
N8NTA

Thanks everyone for the advice.

Dave P, your idea seems to work. However what if I want to isolate the low range OR the high range. I'm essentially trying to put logical operators in my case statement.

Case is < 256 OR is > 768
PORTC = %0001

Case Else
PORTC = %1000

Can I write that first Case statement with the OR term?

Or would I have to do this:

Case is < 256
PORTC = %0001
Case is > 768
PORTC = %0001
Case else
PORTC = %1000

Is there no way to use logical operators in Case Statements in PICBasicPRO??!

bmsherma, The second way you have it is the way I would do the construct..

Dave Purola,
N8NTA

Quote:

---

Originally Posted by bmsherma

Is there no way to use logical operators in Case Statements in PICBasicPRO??!

---

NO!, logical operators are NOT allowed in Case statements.
<br>

Thanks everyone for the help!!

This forum is GREAT

Hi,

With a very, very very little Trickery ... I think it makes it.

Code:

---


IF ( Voltage.8 ^ Voltage.9 ) THEN

  PORTC = 1

ELSE

  PORTC = 8

ENDIF

---

Alain

Or ... With Select Case

Code:

---


Voltage = Voltage.Highbyte

SELECT CASE Voltage

    Case 1,2

      PORTC = 1

    Case Else

      PORTC = 8

END SELECT

---

Alain