Darrel Taylor - Archived pages of DT Interrupts

[Archangel]

If you have mister_e 's PIC Multicalc, it has those functions. http://www.picbasic.co.uk/forum/atta...4&d=1162909841
Oops!, here is a newer version: http://www.picbasic.co.uk/forum/atta...7&d=1225550328

[ozarkshermit]

Here is another question:

Anyone have a working link to find DT_Analog.PBP ?

Been searching, but no luck - - lots of links that no longer work

Ken

[pedja089]

I don't have link, but I have saved include file

'http://www.darreltaylor.com/DT_Analog/
'****************************************************************
'*  Name    : DT_Analog.pbp                                     *
'*  Author  : Darrel Taylor                                     *
'*  Notice  : Copyright (c) 2009                                *
'*  Date    : 5/23/2009                                         *
'*  Version : 1.0                                               *
'*  Notes   : Up to 16 bit A/D with a 10-bit A/D converter      *
'*          : http://en.wikipedia.org/wiki/Oversampling         *
'****************************************************************
GOTO OverDTAnalog

ADchan       VAR BYTE        ; global - A/D channel to use
ADbits       VAR BYTE        ; global - # of bits in result
ADvalue      VAR WORD        ; global - the final A/D value
ADmax        VAR WORD        ; global - Max A/D value at this resolution
;--------------------
DTadCount    VAR WORD        ; local - sample count
DTadDivisor  VAR WORD        ; local - averaging divisor
DTadShiftR   VAR BYTE        ; local - bits to shift for UnderSampling
#IF  __LONG__
    DTadAccum    VAR LONG ; local - 32-bit sample accumulator
#ELSE
    DTadAccum    VAR WORD[2]     ; local - 32-bit sample accumulator
#ENDIF
;---------------------------------------------------------------------------
GetADC:
  IF (ADbits >= 10) THEN
    DTadShiftR = 0   ; 10 11 12 13  14   15   16
    LOOKUP2 ADbits-10,[ 1, 4,16,64,256,1024,4096],DTadCount
    LOOKUP  ADbits-10,[ 1, 2, 4, 8, 16,  32,  64],DTadDivisor
  ELSE
    DTadCount = 1
    DTadDivisor = 1
    DTadShiftR = 10 - ADbits
  ENDIF  
  LOOKUP2 ADbits,[0,1,3,7,15,31,63,127,255,511,1023, _
                  2046,4092,8184,16368,32736,65472],ADmax
  
  DTadAccum = 0 : DTadAccum[1] = 0     ; clear the accumulator
DTadLoop:
  ADCIN  ADchan, ADvalue               ; get 10-bit sample
  DTadAccum = DTadAccum + ADvalue      ; add it to the accumulator
  #IF not __LONG__
      IF DTadAccum < ADvalue THEN           ; if low word overflowed
         DTadAccum[1] = DTadAccum[1] + 1   ;   increment the high word
      ENDIF
  #ENDIF
  DTadCount = DTadCount - 1            ; done with this sample
  IF DTadCount > 0 THEN DTadLoop       ; loop if not done with ALL samples
  #IF __LONG__
      ADvalue = DTadAccum / DTadDivisor
  #ELSE
      R2 = DTadAccum                       ; put 32-bit accumulated value in PBP
      R0 = DTadAccum[1]                    ;   registers, prepare for DIV32
      ADvalue = DIV32 DTadDivisor          ; get the average value
  #ENDIF
   ADvalue = ADvalue >> DTadShiftR      ; Shift right if < 10-bit
RETURN
OverDTAnalog:

EDIT:
Here is saved page
http://web.archive.org/web/201201210...com/DT_Analog/

[Art]

This sux bigtime
How did anyone find out? Did someone know him personally?
I somehow pictured him in my mind in his 40’s or so.

I wondered where he had gone, but assumed he just moved on as some others have.
There is a thread here I will never forget, and I wish he’d seen the outcome.

[Ioannis]

From this link Art:

http://support.melabs.com/threads/10...=darrel+taylor

Ioannis

[Acetronics2]

Hi,

Wanting to have a look to Darrel's repository ...I was pretty surprised to see my browser CHROME locked the access to support.melabs.com telling it is a " dangerous pirated site ( phishing ,etc, etc ...) " ( sic! )

and, if I'm right, it is not the first time it happens ...

Has anyone any info about that ???

Alain

[HenrikOlsson]

No info except that I haven't been able to reach their forum for two days. Antivirus software goes haywire when I try.
And no, it's not the first time.