I have had some trouble with the CLA in regards to reading ADC values. I started my code based off of the ClaAdc example which originally, as taken from the comments "Cla Task2 logs 20 ADCRESULT1 values in a circular buffer."
I first adapted this example to read 3 adc values into simple integer variables, I then tried to store these values in 3 (adc) x 5 (array size) arrays, and this is where I ran into trouble. The values in the 1st position of each array would update, however the value would not increment. I also tried adjusting the frequency of cla interrupts called, but this did not have any affect. The cla code is posted below.
MMOVZ16 MR0, @_ConversionCount ;1 Current Conversion
MMOV16 MAR0, MR0, #_VoltageA ;2 Point MAR0 register to VoltageA[ConversionCount]
MMOV16 MAR1, MR0, #_VoltageB ;2 Point MAR1 register to VoltageB[ConversionCount]
MNOP ; wait
MNOP ; wait
MNOP ;5 wait
MNOP ;6 wait
MNOP ;7 Wait till I8 to read result
MMOVZ16 MR2, @_AdcResult.ADCRESULT0 ;8 Read ADCRESULT0
MMOV16 *MAR0, MR2 ;9 Store ADCRESULT0 using pointer to VoltageA[ConversionCount]
MMOV16 MAR0, MR0, #_VoltageC ;10 Point MAR0 to VoltageC[ConversionCount], need to do this now because we can't access this register for another 5 cycles
MMOVZ16 MR2, @_AdcResult.ADCRESULT1 ; Read ADCRESULT1
MMOV16 *MAR1, MR2 ; Store ADCRESULT1 in VoltageB[ConversionCount]
MUI16TOF32 MR0, MR0 ; need to wait, but convert to float now
MMOVZ16 MR2, @_AdcResult.ADCRESULT2 ;9 Read ADCRESULT2
MMOV16 *MAR0, MR2 ; Store ADCRESULT2 to VoltageC[ConversionCount]
MADDF32 MR0, MR0, #1.0 ; Add 1 to ConversionCount
MCMPF32 MR0, #NUM_DATA_POINTS.0 ; Compare ConversionCount to max
MF32TOUI16 MR0, MR0 ; Convert count to Uint16
MBCNDD _RestartCount, GEQ ; If count >= NUM_DATA_POINTS
MMOVIZ MR1, #0.0 ; Preload MR1 with 0
MNOP
MNOP
MMOV16 @_ConversionCount, MR0 ; If branch not taken, store current count
MSTOP
_RestartCount
MMOV16 @_ConversionCount, MR1 ; If branch taken, restart count
MSTOP
MNOP
MNOP
MNOP
_Cla1T2End:
