Circuit and method for synchronous work of control/remote node and bus monitoring node
A technology for bus monitoring and remote nodes, applied in hardware monitoring, electrical digital data processing, error detection/correction, etc., can solve problems such as unsupported solutions and measures, and achieve the effect of simplifying equipment and avoiding competition
Active Publication Date: 2018-08-03
西安翔腾微电子科技有限公司
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Problems solved by technology
When the control / remote node receives the message, the bus monitoring node is also monitoring the message, how to make the two work synchronously, in the current technology, there is no solution and measure to support this kind of problem
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[0032] A circuit and method for synchronously working between a control / remote node and a bus monitoring node, refer to figure 1 , including CC / RN functional unit, BM functional unit and PCIe host interface unit, wherein: CC / RN functional unit includes AS5643 protocol processing module, configuration table area, DMA control and receiving / sending data buffer (dual-port memory); BM Functional unit includes message number polling area, DM interface, FIFO control, monitoring management and status register, monitoring status FIFO, monitoring data FIFO; PCIe host interface unit includes register interface, DMA data interface, DMA request interface, DMA occupation arbitration module and PCIe bus back-end module.
[0033] A kind of method that control / remote node receives message and bus monitoring node works synchronously, adopts above-mentioned circuit, see figure 2 ,Proceed as follows:
[0034] Step 1: The control / remote node initializes the configuration, configures its own nod...
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The invention relates to a circuit and a method for synchronous working of a control / remote node and a bus monitor node. When the control / remote node receives messages, the bus monitor node also monitors the messages; when an own node circuit organization sends a data package to a link layer DM interface, the data are simultaneously sent back to a receiving interface of a BM functional unit and then are designed according to functions of the BM functional unit, the data and the messages received from a bus are monitored together, and the requirement of monitoring the actual transmission condition of own control / remote node on the bus is met. Meanwhile, with the introduction of a DMA (direct memory access) request arbitration unit, the competition between a control / remote node unit and the BM unit can be effectively avoided. According to the circuit and the method, the requirement of ground simulation equipment can be met, and single equipment can synchronously work with the bus monitor node when taken as the control / remote node for receiving the messages.
Description
technical field [0001] The invention belongs to computer hardware technology, and relates to a design circuit and a method for synchronously working of a control computer node (ControlComputer, CC) / remote node (RemoteNode, RN) and a bus monitoring (BusMonitor, BM) node on a 1394 bus. Background technique [0002] The ground simulation equipment needs to be able to simulate the role switching function of the airborne equipment 1394 bus control computer node (CC) and remote node (RN), and also needs to monitor the transmission of the 1394 bus, which requires that the same equipment must have a control / remote node The function is switchable and works synchronously with the bus monitoring node. When the control / remote node receives the message, the bus monitoring node is also monitoring the message, how to make the two work synchronously, in the current technology, there is no solution and measure to support this kind of problem. Contents of the invention [0003] The object ...
Claims
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IPC IPC(8): G06F11/30G06F13/38
CPCG06F11/3027G06F13/382
Inventor 王宣明田泽魏美荣魏艳艳
Owner 西安翔腾微电子科技有限公司