Forum Post: CCS/TMS320F280049C: TIDM-1000-Three Phase PFC: Vienna Rectifier - ADC configuration info

Part Number: TMS320F280049C Tool/software: Code Composer Studio Hi, i need of a clarification regarding the ADC configuration used in the "TIDM-1000-Three Phase PFC: Vienna Rectifier" project provided with "The DigitalPower SDK for C2000™ microcontrollers" software pack. I'm working with the TIDM-1000 evaluation board using the F280049C-controlCARD. I studied and tested all the source code provided by TI but i have a lot of doubts regarding the ADC configuration used in the project. I understood that the "ADC conversion" is triggered by EPWM1A with a frequency of 50KHz but the conversion time required to complete the acquisition from all the ADC channels (ADC-A, ADC-B and ADC-C) is not clear. I found the following defines but i didn't understand how the ADC_CONV_TIME is calculated. I didn't find any reference document that explain it. // // ADC Related // #define ADC_TRIG_SOURCE ADC_TRIGGER_EPWM1_SOCA #define ADC_CONV_TIME ((float)0.000000210) I'd like to ask you: - is it possibile to receive an explanation on how the ADCs are configured? - how is the conversion time calculated? Is it relative to a single SOC of an ADC channel? Or is it the time required to complete the acquisition of all the signals (ADC-A, ADC-B and ADC-C)? - is the ADC sampling mode simultaneous or sequential? I red the TMS320x2802x, 2803x Piccolo Analog-to-Digital Converter (ADC) and Comparator Reference Guide (i didn't find the equivalent for the F28004x) but I have not been able to clarify my doubts. Thank you very much your support. Fabrizio