TMS320F28377D: ADC channels is 16 or 24

Hi Nagesh,

Have a look at the SW examples in c2000ware (you can download it, or go to http://dev.ti.com/tirex/explore/ and look in Software --> C2000ware).

In particular, have a look at the ePWM driven example:

\device_support\f2837xd\examples\cpu1\adc_soc_epwm\cpu01\adc_soc_epwm_cpu01.c

or

\driverlib\f2837xd\examples\cpu1\adc\adc_ex2_soc_epwm.c

If you want to add additional channels, you would add additional SOC configurations and potentially additional ADC configurations (since the channels are distributed among 4 ADC modules).

hello David, 

I am using the below code for reading the ADC.

The below code works only for ADCRESULT0, when i set it to read ADC-A1   i do not see ADCRESULT1 getting updated. can you let me know if the below code is generic or any update is required

ADC_setupSOC(ADCA_BASE, ADC_SOC_NUMBER0, ADC_TRIGGER_EPWM1_SOCA, ADC_CH_ADCIN1, 15);

C2000ware generic code 

ADC_setupSOC(uint32_t base, ADC_SOCNumber socNumber, ADC_Trigger trigger,
ADC_Channel channel, uint32_t sampleWindow)
{
uint32_t ctlRegAddr;

//
// Check the arguments.
//
ASSERT(ADC_isBaseValid(base));
ASSERT((sampleWindow >= 1U) && (sampleWindow <= 512U));

//
// Calculate address for the SOC control register.
//
ctlRegAddr = base + ADC_SOCxCTL_OFFSET_BASE + ((uint32_t)socNumber * 2U);

//
// Set the configuration of the specified SOC.
//
EALLOW;
HWREG(ctlRegAddr) = ((uint32_t)channel << ADC_SOC0CTL_CHSEL_S) |
((uint32_t)trigger << ADC_SOC0CTL_TRIGSEL_S) |
(sampleWindow - 1U);
EDIS;
}

Hi Nagesh,

You can sample ADCIN14 as ADCINA14 or ADCINB14 or ADCINC14 or ADCIND14 - it is mapped to all ADCs.  Same for ADCIN15.