DOOCS and MATLAB control environment for FPGA based cavity simulator and controller in TESLA experiment

Abstract

FPGA based cavity simulator and controller is the next generation control system dedicated for high performance, low latency control algorithm development and implementation. The usage of FPGA technology gives users possibility to create many devices on one board and easy exchange, modify or improve VHDL programmed algorithms. In order to provide the full functionality of the system to the user, and meet the requirements of flexibility and extensibility, an appropriate control software is needed. This paper describes the idea and implementation of control environment dedicated for FPGA based devices. As an example of implementation, two control environments have been implemented; the laboratory software based on Matlab, and the application for accelerator operation using DOOCS environment.

<title>FPGA-based multichannel optical concentrator SIMCON 4.0 for TESLA cavities LLRF control system</title>

“…Multimode optical fibers were used for 850nm of optical wavelength. [17]. In such a configuration, SIMCON 4.0 is placed in VME 6HE crate and may work in "slave" mode A24D32 or A32D32.…”

<title>SIMCON 3.0 eight channel FPGA-based cavity simulator and controller for VUV free-electron laser</title>

“…stems from the requirements imposed by the DOOCS[9] management system used for control of FLASH laser. The controller of VME-BUS was realized in FPGA ALTERA-ACEX-100K by Altera [7].• module PC-EMBEDDED[10] equipped in a PC chip ETRAX with implemented Ethernet 100TB link and FPGA ALTERA-ACEX-100K circuit which provides communication with the rest of LLRF system modules; • module of fast optical transmission[11] designed for concentration of data streams; includes FPGA ALTERA-CYCLONE-20K and two SERDES circuits TLK2501.…”