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Protocol conversion method and protocol converter for USB bus and PC104 bus

A PC104, protocol converter technology, applied in the direction of instrumentation, electrical digital data processing, etc., can solve the problems of inconvenience, large disassembly workload, etc., and achieve the effect of high scalability, high efficiency, high reliability and

Pending Publication Date: 2022-01-28
YANGO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the pinhole fit of PC104 and its huge number of pins, for the hardware using PC104, it causes a huge workload of disassembly during testing and maintenance, which is very inconvenient

Method used

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  • Protocol conversion method and protocol converter for USB bus and PC104 bus
  • Protocol conversion method and protocol converter for USB bus and PC104 bus
  • Protocol conversion method and protocol converter for USB bus and PC104 bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Please refer to figure 1 , the protocol conversion method of the present embodiment includes:

[0071] Step S1, judging whether it is a USB bus request or a PC104 bus request, if it is a USB bus request, then perform step S2, and if it is a PC104 bus request, then perform step S3;

[0072] Step S2, receiving USB bus data packets transmitted through multiple USB bus interfaces, and converting the USB bus data packets into PC104 bus data packets, and the protocol converter sends the PC104 bus data packets to PC104 bus terminals via the PC104 bus.

[0073] Step S2 please refer to figure 2 , which specifically include:

[0074] Step S21, receiving multiple copies of USB transmission data transmitted via each USB bus, the USB transmission data includes an identification code, and the USB transmission data is obtained by dividing the USB bus data packet into multiple copies by the USB bus terminal and adding the identification code;

[0075] Step S22, restoring each copy ...

Embodiment 2

[0104] Please refer to Figure 4 , the protocol converter of the present embodiment, it comprises power supply circuit, PC104 bus interface, FAGA (Field-Programmable Gate Array, Field Programmable Gate Array) main control circuit, MCU control circuit and a plurality of USB bus interfaces, MCU control circuit is electrically connected FAGA The main control circuit and each USB bus interface, so that the MCU control circuit realizes the sending and receiving of the USB bus interface, and sends the received data to the FAGA circuit for storage in a certain format. The FAGA main control circuit is electrically connected to the PC104 bus interface, so that the FAGA main control circuit The control circuit converts the data sent by the USB bus interface into PC104 data packets and sends them to the PC104 bus, and converts the data of the PC104 bus interface into data of the USB bus interface and sends them to the MCU control circuit.

[0105] Wherein, the FAGA main control circuit i...

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Abstract

The invention discloses a protocol conversion method and protocol converter for a USB bus and a PC104 bus. The protocol conversion method comprises the steps that: S1, the protocol converter judges whether a request is a USB bus request or a PC104 bus request; and S2, a USB bus data packet is transmitted to the protocol converter through a plurality of USB bus interfaces, the USB bus data packet is converted into a PC104 bus data packet, and the PC104 bus data packet issent to a PC104 bus terminal through the PC104 bus. and S3, the PC104 bus data packet is sent to the protocol converter through the PC104 bus, the PC104 bus data packet is converted into a USB bus data packet, and the USB bus data packet is transmitted to a USB bus terminal through a plurality of USB bus interfaces. According to the method, the protocol converter is arranged to establish connection between the USB bus and the PC104 bus, a plurality of USB bus interfaces are arranged, and the USB bus data packet is divided and sent, so that the transmission efficiency of the USB bus is improved, the efficiency of the USB bus is close to the transmission efficiency of the PC104 bus, and the overall conversion efficiency of the protocol converter is improved.

Description

technical field [0001] The invention relates to the technical field of protocol conversion, in particular to a protocol conversion method between a USB bus and a PC104 bus and a protocol converter. Background technique [0002] PC104 is an industrial computer bus standard. Due to its unique stacking connection mode, high reliability, high scalability and low power consumption, as well as its high compatibility with PC software, many application system hardware boards use The PC104 bus interface has been established, which makes the PC104 bus widely used in military and industrial fields. However, due to the pinhole fit of PC104 and its large number of pins, for the hardware using PC104, it causes a huge disassembly workload during testing and maintenance, which is very inconvenient. Contents of the invention [0003] The technical problem to be solved by the present invention is: a protocol conversion method and a protocol converter between the USB bus and the PC104 bus, ...

Claims

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Application Information

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IPC IPC(8): G06F13/42G06F13/40
CPCG06F13/4282G06F13/4081G06F2213/0042Y02D10/00
Inventor 罗贤全游玲单成进邱烨
Owner YANGO UNIV