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Taking advantage of the intercommunication features of IPMCs in ATCA CDAQ systems

2018; Elsevier BV; Volume: 128; Linguagem: Inglês

10.1016/j.fusengdes.2018.01.069

1873-7196

A.P. Rodrigues, B. Santos, Paulo F. Carvalho, Miguel Correia, J. Sousa, Carlos Correia, B. Gonçalves,

Fault Detection and Control Systems

The PCI Industrial Computer Manufacturers Group (PICMG) 3.x AdvancedTCA Base Specification and Intelligent Platform Management Interface (IPMI) standards specify a modular system for Control and Data Acquisition (CDAQ) where the boards can communicate through the Intelligent Platform Management Bus-0 (IPMB-0). CDAQ systems applied to large physics experiments like ITER, are designed, among other features, for High-Availability (HA). A CDAQ system based on the PICMG 3.x AdvancedTCA Base Specification and IPMI standards grants these features. One of the key functions of the HA is the hot swapping possibility of the CDAQ system elements which is granted by those standards. An Advanced Telecommunications Computers Architecture (ATCA) CDAQ system can be designed implementing the Peripheral Component Interconnect Express (PCIe) standard communication protocol in their fabric lines. Despite the fact that this protocol has its own rules for hot swapping, defined as hot-plug, ATCA and PCIe standards are not entirely compatible in what concerns this aspect. Instituto de Plasmas e Fusão Nuclear (IPFN) has developed and implemented a CDAQ system using the ATCA and PCIe standards. This paper describes the software architecture and functions implemented in the microcontroller of the Intelligent Platform Management Controller (IPMC) of the ATCA boards in order to render those standards compatible in what concerns hot-swap and hot-plug processes as an example of the possibilities that can be achieved taking advantage of the intercommunication features of IPMCs through the Intelligent Platform Management Bus-0 (IPMB-0).