piccolo exp_kit_F28069 : PM Sensorless

Hi,

I was trying to capture the F28069 PWM signals thru ADC while implementing the PM_Sensorless.c project with CCSV4.  The following changes was done to the project.

--> F2806xileg_vdc_PM.h :  (initialising the ADC's)

---> PM_Sensorless.c : (Capturing the result in ADC registers)

int16 PWM_ADC[7];

Added the following lines in Level 1 just after PWM_DRV module i.e., at line 645

• //-------------------------------------------------------------------------------
• //Capture PWM
• //-------------------------------------------------------------------------------
• PWM_ADC[1] = AdcResult.ADCRESULT7 >> 4;
• PWM_ADC[2] = AdcResult.ADCRESULT8 >> 4;
• PWM_ADC[3] = AdcResult.ADCRESULT9 >> 4;
• PWM_ADC[4] = AdcResult.ADCRESULT10 >> 4;
• PWM_ADC[5] = AdcResult.ADCRESULT11 >> 4;
• PWM_ADC[6] = AdcResult.ADCRESULT12 >> 4;

With the above changes in the code the ADC pins were connected to PWM1 to 6.  However the graphs / watch window does indicate the PWM wave form generation.  Could you please review and suggest how to integrate the ADC capturing of PWM's.  What changes would be needed.

Thx & Rgds

1. AdcRegs.ADCSOC7CTL.bit.CHSEL = 3; /* PWM1*/ \
2. AdcRegs.ADCSOC7CTL.bit.TRIGSEL = 5; \
3. AdcRegs.ADCSOC7CTL.bit.ACQPS = 6; \
4. \
5. AdcRegs.ADCSOC8CTL.bit.CHSEL = 4; /* PWM2*/ \
6. AdcRegs.ADCSOC8CTL.bit.TRIGSEL = 5; \
7. AdcRegs.ADCSOC8CTL.bit.ACQPS = 6; \
8. \
9. AdcRegs.ADCSOC9CTL.bit.CHSEL = 5; /* PWM3*/ \
10. AdcRegs.ADCSOC9CTL.bit.TRIGSEL = 5; \
11. AdcRegs.ADCSOC9CTL.bit.ACQPS = 6; \
12. \
13. AdcRegs.ADCSOC10CTL.bit.CHSEL = 6; /* PWM4*/ \
14. AdcRegs.ADCSOC10CTL.bit.TRIGSEL = 5; \
15. AdcRegs.ADCSOC10CTL.bit.ACQPS = 6; \
16. \
17. AdcRegs.ADCSOC11CTL.bit.CHSEL = 13; /* PWM5*/ \
18. AdcRegs.ADCSOC11CTL.bit.TRIGSEL = 5; \
19. AdcRegs.ADCSOC11CTL.bit.ACQPS = 6; \
20. \
21. AdcRegs.ADCSOC12CTL.bit.CHSEL = 14; /* PWM6*/ \
22. AdcRegs.ADCSOC12CTL.bit.TRIGSEL = 5; \
23. AdcRegs.ADCSOC12CTL.bit.ACQPS = 6; \

---> PM_Sensorless-DevInit_F2806x.c (Initialising PWM)

1. // GPIO-00 - PIN FUNCTION = PWM1
3. GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 1; // 0=GPIO, 1=EPWM1A, 2=Resv, 3=Resv
4. // GpioCtrlRegs.GPADIR.bit.GPIO0 = 1; // 1=OUTput, 0=INput
5. // GpioDataRegs.GPACLEAR.bit.GPIO0 = 1; // uncomment if --> Set Low initially
6. // GpioDataRegs.GPASET.bit.GPIO0 = 1; // uncomment if --> Set High initially
7. //--------------------------------------------------------------------------------------
9. // GPIO-01 - PIN FUNCTION = PWM2
11. GpioCtrlRegs.GPAMUX1.bit.GPIO1 = 1; // 0=GPIO, 1=EPWM1B, 2=EMU (0), 3=COMP1OUT
12. // GpioCtrlRegs.GPADIR.bit.GPIO1 = 1; // 1=OUTput, 0=INput
13. // GpioDataRegs.GPACLEAR.bit.GPIO1 = 1; // uncomment if --> Set Low initially
14. // GpioDataRegs.GPASET.bit.GPIO1 = 1; // uncomment if --> Set High initially
15. //--------------------------------------------------------------------------------------
17. // GPIO-02 - PIN FUNCTION = PWM3
19. GpioCtrlRegs.GPAMUX1.bit.GPIO2 = 1; // 0=GPIO, 1=EPWM2A, 2=Resv, 3=Resv
20. // GpioCtrlRegs.GPADIR.bit.GPIO2 = 0; // 1=OUTput, 0=INput
21. // GpioDataRegs.GPACLEAR.bit.GPIO2 = 1; // uncomment if --> Set Low initially
22. // GpioDataRegs.GPASET.bit.GPIO2 = 1; // uncomment if --> Set High initially
23. //--------------------------------------------------------------------------------------
25. // GPIO-03 - PIN FUNCTION = PWM4
27. GpioCtrlRegs.GPAMUX1.bit.GPIO3 = 1; // 0=GPIO, 1=EPWM2B, 2=SPISOMIA, 3=COMP2OUT
28. // GpioCtrlRegs.GPADIR.bit.GPIO3 = 1; // 1=OUTput, 0=INput
29. // GpioDataRegs.GPACLEAR.bit.GPIO3 = 1; // uncomment if --> Set Low initially
30. // GpioDataRegs.GPASET.bit.GPIO3 = 1; // uncomment if --> Set High initially
31. //--------------------------------------------------------------------------------------
33. // GPIO-04 - PIN FUNCTION = PWM5
35. GpioCtrlRegs.GPAMUX1.bit.GPIO4 = 1; // 0=GPIO, 1=EPWM3A, 2=Resv, 3=Resv
36. // GpioCtrlRegs.GPADIR.bit.GPIO4 = 0; // 1=OUTput, 0=INput
37. // GpioDataRegs.GPACLEAR.bit.GPIO4 = 1; // uncomment if --> Set Low initially
38. // GpioDataRegs.GPASET.bit.GPIO4 = 1; // uncomment if --> Set High initially
39. //--------------------------------------------------------------------------------------
41. // GPIO-05 - PIN FUNCTION = PWM6
43. GpioCtrlRegs.GPAMUX1.bit.GPIO5 = 1; // 0=GPIO, 1=EPWM3B, 2=SPISIMOA, 3=ECAP1
44. // GpioCtrlRegs.GPADIR.bit.GPIO5 = 1; // 1=OUTput, 0=INput
45. // GpioDataRegs.GPACLEAR.bit.GPIO5 = 1; // uncomment if --> Set Low initially
46. // GpioDataRegs.GPASET.bit.GPIO5 = 1; // uncomment if --> Set High initially