CPCI-E Based Enhanced Gjb289A/1553B Module Development

1553B bus has significant real-time, reliability and safety features, and it’swidely used in aerospace field, China introduced the1553B specification anddeveloped GJB289A standards on its basis, after which the aircraft, ships,missiles, and many other defense and military equipment have adopted the1553Bbus interconnect. With the continuous improvement of weapons and equipmentperformance on a number of occasions, the data transfer speed, the control speedrequirements became higher, which correspondingly demmanded the1553B bussystem to meet higher requirements, the transfer rate has been put forward toupgrade from standard1Mbps to4Mbps. On the other hand, the test of thedefense equipment electronic systems on the ground generally use dedicated testsystems, CPCI-E specification based instruments have high transmission rate,good immunity to interferences, and reliable performances, etc., which are moreand more paid attention, and many older VXI, CPCI platforms test systems aregradually being upgraded to CPCI-E or PXIe platforms. Therefore developing aCPCI-E based1553B bus communication module has important applicationssignificance.Based on the study of1553B bus standard plus the analysis of the currenttest requirements for1553B bus, we proposed the scheme of an enhanced1553BTest Module which has high bus communication speed, large capacity of cacheand high-speed computer communication interface. Using high-performance DSPTMS320DM642as the main processor, which enhanced data processingcapability;1Mbps1553B communication protocol logic is written in the FPGA,which improved design flexibility and reduced design cost; using specialprotocol chip to achieve high-speed4Mbps1553B communication to ensure thereliability of the transmission. Using DDR3as the cache, for DDR3has high-speed and large storage capacity. Using Cyclone V series FPGA to developfirmware, considering that Cyclone V provides internal DDR3hard IP and PCIExpress hard IP, and it can provide the high performance and reliability for thecontrol of DDR3and CPCI-E interface.Writing DSP program to realize the control of the data transmission of the entire module, including1553B interface read and write control and responses ofthe host computer commands. Developed LabWindows/CVI based host computerapplication program for the user to control the module, and developed NI-VISAbased driver for the module.Finally all functions of the module is put through the tests and by analyzingthe test results, we verify that the design of the hardware and software can meetthe technical specifications and functional requirements. The module functionsreliably and can implement CPCI-E based1553B communications successfully.