ABSTRACT
We can see from Figure 1, the FPGA in the whole working process of analog module to PC data and command receiving and control signal generation effect. According to the working principle of FPGA input and output signal module can be divided into the following five groups: the first group is the read/ write signal, the main role is to realize the communication of FPGA and PC; the second group is the drive control signal, the main role is to control the direction of data transmission between FPGA and PC; the third group is the A/D control signal, the main role is to achieve the control of A/D
1 INTRODUCTION
Special analog module can realize mutual conversion between digital and analog. The module can be widely used in medical equipment, and it has a very broad application prospects.
