In SX Microcontrollers, SX/B Compiler and SX-Key Tool, johncouture wrote:

I must have the syntax incorrect, thus the reason for the question.
 

In this program I store a 64 bit serial number in a byte array called "DS18B20".  The problem is when I try to print each of the bytes out.  Using [color=blue>Method] I call a subroutine called TX_NUM and hand it the DS18B20 address.  It goes off and prints out a goofy number.

 

In the second method[/color], I don't use the TX_NUM subroutine but rather print each of the eight bytes of the array using a simple for/next loop.  This works great.

 

Both routines use TX_HEX so that isn't the problem.  It must be something to do with how I am handing the address to the subroutine.  I was trying to pattern it after Jon Williams TX_STR routine but I am obviously doing something wrong.

 

In analyzing the generated assembler code, the first method does a 

[color=blue>MOV]

<FONT color=blue>MOV __PARAMCNT, #1[/color]

[color=blue>CALL]

 

The second method passes the array differently as in:

<FONT color=purple>MOV W,#DS18B20[/color]

[color=purple>ADD]

<FONT color=purple>MOV FSR,W[/color]

[color=purple>MOV]

<FONT color=purple>BANK $00[/color]

[color=purple>CALL]

 

The first method seems to be saying that there is only 1 parameter (a byte) when there should be 2 parameters (a word)?

 

Am I even close?

 

 

 

 

<FONT face="Courier New">' variable declaration -------------------------------[/color]

[color=blue>']

<FONT face="Courier New" color=blue>   TX_NUM DS18B20   ' Thermometer Serial Number[/color]

[color=blue> 

   for temp3 = 0 to 7
      TX_HEX DS18B20(temp3)
   next
[/color]

<FONT face="Courier New">'-----------------------------------------------------

' Subroutines

'------------------

SUB TX_NUM
  tempW1 = __WPARAM12     ' get string address
  FOR temp3 = 0 to 7
    READINC tempW1, temp2  ' read a character
    TX_HEX temp2                ' send the byte
  NEXT
ENDSUB

 

SUB TX_HEX

' used by both so not important

ENDSUB

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