| Paper |
Title |
Page |
| TUP061 |
Applications and Upgrading of Flexible and Logic-reconfigurable VME Board
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221 |
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- T. Hirono, T. Kudo, T. Ohata
JASRI/SPring-8, Hyogo-ken
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We applied the flexible and logic-reconfigurable VME boards to many control systems, which requires fast and real-time control, such as a tag generating system and a pulse motor controller of 60Hz beam shutter. The board has a field programmable gate arrays (FPGA) chip for execution of user logic, which can be implemented in C. IO interfaces of the board are module cards. They can be mounted on the base board with connectors. The board was easily modified by exchanging the IO modules and reconfiguring FPGA logic. We also upgraded the base board. The new board supports large data transition. The new board has PMC sockets with a PCI bus and a Gigabit Ether port. The same IO module card can also be used on the new board. and the upgraded board are shown in the presentation. The design and implementation of developing-evironment of the user logic of the board are shown with the applications. We also discuss about the design of the upgraded board.
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Poster
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| THP031 |
Upgrade of RF Control System at SPring-8
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730 |
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- T. Matsumoto, T. Kudo, T. Masuda, R. Tanaka
JASRI/SPring-8, Hyogo-ken
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SPring-8 continues its operation over 10 years. Recently, we encounter the need to replace commercial I/O boards due to manufacturing discontinuances. Also, early introduced GPIB control causes instabilities on our control system. In this paper, we report upgrade on these issues for RF control system at SPring-8. For the replacements of I/O boards, we needed some idea for restricted time due to short shutdown period of accelerator operation, and for large number of signals. Therefore, we developed new boards [analog input board (AI) and pulse train generator board (PTG)] for smooth replacements. The new boards were designed to have similar signal cabling scheme and software application with current system. Also, additional improvements (higher signal density, better resolution for AI, flexible logic with logic-reconfigurable VME board for PTG), were introduced at the same time. For AI, ~40 boards were successfully replaced in short time, then we achieved better resolution and reduction in number of boards. For the replacement of GPIB control, we introduced small embedded PC (Armadillo) instead of GPIB-RS-232C converter. Thus, we could improve the stability of the RF control system.
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