The Design and Development of the Numerical Control Software Based on Dual Port RAM;

A Design for High-speed Data Acquisition System Based on Double-port RAM;

PMAC communicates with IPC based on double-port RAM, response time is little, fast and high-veracity, so it is a in common use comm.

Then the digital signal would be memorized in double ports RAM.

A design of the PCB drilling machine controller based on the dual ARM MCU and Dual-Port RAM is introduced in this paper.

Objective To transmit ECG signals through a portable dual-mcu ECG holter based dual-port RAM.

Based on two-direction row chain data struct recording ladder graphics, software system with friendly interface and abundant functions is achieved-Because of independent CPU and communication with PC via dual-port RAM.

The applied technical points are introduced in details, such as the software and hardware of A/D controller, Double Port RAM, controlling logic and interface with EPP port.

A bus type controller is developed with multi SCM and dual port RAMs, which have real time multitask function and fits to complex automation equipment well.

According to input signal range,the float-point amplifier enlarges suitable multiples to ensure the dynamic extension;The CPLD have abundant internal resource and lots of I/O pins and its processing speed is quick,then it can realize flexible control process;As a bridge between CPU and A/D convertor,the dual port RAM provides hardware support for high-speed data transmission;Co.