Method of information interaction between 330T and 9054 in satellite communication gateway modulator

The invention discloses a method for implementing information interaction between 330T and 9054 in a mobile communication gateway modulator based on the Beidou navigation satellite. The 330T is a signal modulation processor FPGA330T of the gateway modulator. The 9045 is a bridge chip PLX9045. The 330T is connected with the 9045 through control signals and a data bus. Burst and concurrent transmission is achieved by differently connecting six programmable FIFOs (first-in first-outs) through a PCI (peripheral component interconnect) bus and a CPU (central processing unit) bus. A configuration register inside the PLX9054 is set to achieve communication between the FPGA330T and the PLX9054 through a serial EEPROM (electrically erasable programmable read-only memory) or a PCI master control device. The method guarantees reliable connection between the PLX9054 and FPGA330T and controllability and timeliness in signal transmission, and has high practical value.