PCB schematic for sensor controlling application | Cypress Semiconductor
PCB schematic for sensor controlling application
I'm using PSoC 5LP to implement a sensor controlling application. The system was tested on Development kit and I recently want to make my own board.
Basically, the functions are
1) getting 32 sensors outputs (32 GPIOs are needed)
2) communication with PC using USB
3) programming using Miniprog
4) 5V power.
I've designed my system and schematic is attached here. However, I feel confused about power supply. From my understanding, I need to support 3 domains' power: analog, digital and I/O pins.
My questions are
a.Is that corret in my schematic using one 5 volt power supply for all domains?
b. Can I just use 0 ohm resisters to seperate them as Development kit does? How does it work?
c. Can I connect GND , Vssa, Vssd together?
Also, I'll really appreciate any suggestions from you about this schematic.