Analog Essentials Getting Started Guide
3
Typical System Architecture
Below is a generalized block diagram for the architecture implemented in the FPGA project. One of the key elements is
the logic block that drives each Pmod port. Each Pmod port driver contains a dedicated I
2
C port, SPI port, UART, and
octal GPIO port. Any of these can be quickly connected to the Pmod port via software control. (The multiplexer setting is
controlled by another internal GPIO port.) This eliminates the need to reprogram the FPGA during testing and evaluation
of various peripheral modules.
Board specific notes
The Avnet Zedboard contains (5) Pmod connectors. However, only connectors JA, JB, JC and JD are driven by the
logic/hardware resources in the above diagram. Pmod connector JE is not connected to the logic associated with this
project.
