Weirdness with 16F1705's eeprom and DAC

[richard]

new code without all the noisy comment

with both outputs driven , from fvr buff2 @2.048v [1.024v got weird results]
the unmentioned feature in data sheet is that out2 is complement of out1 and the gain seems a bit different
ps blue trace is dacout1

#CONFIG ; 16F1705
    __config _CONFIG1, _FOSC_INTOSC & _WDTE_ON & _PWRTE_ON & _MCLRE_ON & _CP_OFF & _BOREN_ON & _CLKOUTEN_OFF
    __config _CONFIG2, _WRT_OFF & _PPS1WAY_OFF & _ZCDDIS_OFF & _PLLEN_OFF & _STVREN_ON & _BORV_LO & _LPBOR_OFF & _LVP_OFF       
#ENDCONFIG


a   var byte                    ' Loop counter. 
b var byte[8]






    DEFINE  OSC 4               ' Adjust to suit design.
    OSCCON  = $68         ' Internal 4MHz osc.




    ANSELA = 0
    ANSELC = 0       


    FVRCON = %10001000         ' Enabled, Vref 2.048V.



    DAC1CON0 = %10111000        ' Vref from FVRb2, DAC1out2 (RA2).  DAC1out1 (RA0).  


    TRISA = 0
  


    
   b[0]=128
   b[1]=192
   b[2]=255
   b[3]=192
   b[4]=128
   b[5]=40
   b[6]=0
   b[7]=40


First:  
    a=7
    while a
    DAC1CON1 = b[a]
    pause 5            ' Let the DMM settle.
    a=a-1
    wend
    goto first              


    end