Communication chip architecture based on iec61158 standard fieldbus
A field bus and bus arbitration technology, applied in the field bus network, data exchange through path configuration, comprehensive factory control, etc., can solve problems such as poor reliability, high manufacturing cost, and difficult product development, so as to reduce manufacturing cost, The effect of reducing the load on the microcontroller and facilitating development and debugging
Active Publication Date: 2011-12-07
MICROCYBER CORP
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Problems solved by technology
[0003] The communication chip system currently in use based on the IEC61158 standard field bus has a complex structure, low data transmission efficiency, high static power consumption, poor reliability, high manufacturing costs, and difficult product development, which cannot well meet the application requirements of the field bus.
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[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0033] Such as figure 1 As shown, the present invention includes an internal data bus control unit, a DMA field bus data transmission unit and a configuration unit, wherein the internal data bus control unit completes the external CPU data bus to the DMA through the cache of the internal RAM storage area under the control of the configuration unit The data transmission of the fieldbus data transmission unit; the DMA fieldbus data transmission unit completes the data transmission from the internal RAM storage area of the internal data bus control unit to the fieldbus under the control of the configuration unit; completes under the control of the configuration unit Receive data and identification information of the field bus to the data transmission of the internal RAM storage area of the internal bus control unit; the configuration unit com...
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The invention relates to a communication chip architecture based on an IEC 61158 standard field bus, which comprises an internal data bus control unit, a DMA field bus data transmission unit and a configuration unit; wherein, the internal data bus control unit is controlled by the configuration unit to finish the data transmission from the CPU data bus to the DMA field bus data transmission unit through the cache of the internal RAM memory; the DMA field bus data transmission unit is controlled by the configuration unit to finish the data transmission from the internal RAM memory of the internal data bus control unit to the field bus, and also to finish the data receiving and the data transmission of identifying information from the field bus to the internal RAM memory of the internal data bus control unit; and the configuration unit is controlled by an external CPU to finish the data transmission from the configuration information of the field bus data transmission to the internal data bus control unit and the DMA field bus data transmission unit. The invention is in accordance to the IEC 61158 specifications, facilitates development and debugging and also improves the work efficiency of microcontrollers.
Description
technical field [0001] The invention relates to the design of a physical layer communication chip of IEEE61158 standard field bus technology, in particular to a communication chip architecture based on the IEC61158 standard field bus that meets the application requirements of the field bus communication card. Background technique [0002] Fieldbus is an open and digital communication system used to connect intelligent measurement, control and display equipment on the production site. It has the characteristics of full digitalization, two-way transmission, saving wiring and control room space, openness, intelligence and autonomy. At present, almost all foreign large-scale automation instrumentation and control system manufacturers are devoting themselves to the research and development of fieldbus technology, and have continuously launched their own fieldbus products. The fieldbus control system is a new generation of distributed networked control system, suitable for medium ...
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IPC IPC(8): H04L12/40G05B19/418
CPCY02P90/02
Inventor 于海斌杨志家吕岩谢闯崔书平赵雪峰
Owner MICROCYBER CORP