I want to clarify some doubt in the TMDSHVMTRPFCKIT (TMS320F28035 Control card) schematics kit.
1) I found some DNP components in the schematics . I know DNP means “Do Not Populate” but i don’t know why the DNP components are drawn in the
schematics. Is it necessary to install DNP components on board.
2) In schematics cross(x) is used on some feedback voltage/current pin(as shown in below image) what does it mean..?
3)is it necessary to terminate unused ADC pin to analog ground because these pins are always defined as input pins.
4) And last one is VDDA supply pin as shown in below image from where i give the VDDA pin and how much supply..?