Integrated-equipment driving system and application method thereof

Abstract

The invention discloses an integrated-equipment driving system and an application method thereof. A processing unit of the system comprises an interrupt processing module, an interrupt-latency calling module and an application module; an integrated driving unit of the system comprises a PCI controller, a communication-port controller and at least one bus controller of IO signals; the PCI controller is connected with the communication-port controller and every bus controller of input / output signals respectively, and is connected with the interrupt processing module through a Slave mode; the system is also provided with an interrupt register for saving interrupt marks; the interrupt processing module is used for receiving and managing the interrupt marks and communication data; the interrupt-latency calling module is used for managing events corresponding to the interrupt marks respectively; and the application module is used for processing the communication data and the events. The system is simple in software driving model, safe in interrupt processing and higher in efficiency, thereby increasing the reliability of system operation, reducing hardware cost and simplifying hardware design.

Description

technical field [0001] The invention relates to the drive of external equipment interconnection equipment, in particular to an integrated equipment drive system and its application method in the monitoring and data communication of multi-channel IO ports. Background technique [0002] At present, there are many devices based on the PCI (Peripheral Component Interconnect, also known as external device interconnection) bus, and its main function is to monitor and communicate data with multiple IO ports. Specifically, on the one hand, they will monitor the signals of each connected sub-module, and trigger an interrupt when there is a state change or abnormality; on the other hand, they will mount simple IO communication ports such as parallel ports or serial ports, enabling data communication. [0003] In the 2007 issue of "Foreign Electronic Components" (ISSN: 1006-6997 / CN: 61-1281 / TN), titled "CPCI (Compact PCI, Compact External Device Interconnect) for General Signal Process...

AI Technical Summary

Problems solved by technology

This will increase the hardware cost and design difficulty, and the driver software will be more complicated

In addition, their driver writing directly uses the standard driver paradigm, which does not completely solve the problem of interrupt handling security. However, the ultrasonic host has high requirements on the data processing efficiency and reliability of the device. Therefore, the existing device driver method has the following problems:

If the interrupt only uses ISR+DPC to call this processing method, when the ISR submits the subsequent processing of interrupt 1 to the DPC, it will exit the current processing process. In some cases, if the DPC has not been executed by the kernel, the interrupt 2 triggers the ISR execution. , the ISR will also submit the DPC, then when the DPC is executed by the kernel, it will only process the data of interrupt 2, and the interrupt 1 will be lost, resulting in signal loss and the risk of losing key peripheral data

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