Overview
The X3-Servo module features 12 simultaneously sampling A/D and DACs
with an FPGA computing core. Low latency SAR A/D and fast-settling DACs
support real-time servo control applications. The programmable input range
and high input interface directly to many sensors, while the output is
capable of driving many transducers. Front panel digital IO can be also be
used as PWM or process controls.
Clock and trigger controls include support for consistent servo loop
timing, counted frames, software triggering and external triggering. The
sample rate clock is either an external clock or on-board programmable PLL
clock source.
Data acquisition control, signal processing, buffering, and system
interface functions are implemented in a Xilinx Spartan3A DSP, 1.8M gate
device. Two 1Mx16 memories are used for data buffering and FPGA computing
memory.
The logic can be customized using VHDL and MATLAB using the FrameWork
Logic toolset. The MATLAB BSP supports real-time hardware-in-the-loop
development using Simulink block diagram environment with Xilinx System
Generator.
The PCI Express interface supports continuous data rates up to 180 MB/s
between the module and the host. A flexible data packet system implemented
over the PCIe interface provides both high data rates to the host that is
readily expandable for custom applications. |
