CN102866900A - Method and system for updating configuration data of FPGA (Field Programmable Gate Array) control unit - Google Patents
Method and system for updating configuration data of FPGA (Field Programmable Gate Array) control unit Download PDFInfo
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Abstract
The invention provides a system for updating configuration data of an FPGA (Field Programmable Gate Array) control unit. The system comprises a host end, a PLC (Programmable Logic Controller) communication module, an MCU (Micro Control Unit) and a data memory, wherein the data memory is connected with the FPGA control unit, and the same first configuration program and second configuration program to be called by the electrified FPGA control unit are stored in the data memory; the PLC communication module is connected with the host end and the MCU respectively; configuration data to be updated transmitted by the host end through a power line is transmitted to the MCU; the MCU is connected with the data memory to receive the configuration data to be updated; and the configuration data is written into the data memory after being checked to be correct to substitute the first configuration program. According to the method and the system, remote updating of the configuration data of the FPGA control unit by a power line communication technology is utilized, and the trouble of wiring of the conventional communication cable is saved; and the method and the system are particularly suitable for photovoltaic monitoring and power meter reading industries.
Description
Technical field
The present invention relates to FPGA control module Data Update technical field, specifically, the present invention relates to a kind of method and system of utilizing the configuration data of power line communication technology remote update FPGA control module.
Background technology
Field programmable gate array (FPGA) is by the design of configuration data file completing circuit, thereby realizes different application functions.It is the method that plug-in specialized configuration device carries configuration data that the download of configuration file was used more, and this mode is used device socket, is unfavorable for the processing procedure of high density galley, more can not realize the remote update of configuration data.And now increasing electric system is wished to strengthen the maintainability of system and realize system upgrade by the remote update of FPGA configuration data.
Summary of the invention
Technical matters to be solved by this invention provides a kind of method and system of configuration data of the FPGA of renewal control module, can save telecommunication cable, utilizes power line communication technology (PLC) to carry out operated from a distance.
For solving the problems of the technologies described above, the invention provides a kind of system of configuration data of the FPGA of renewal control module, comprising: host side, plc communication module, MCU unit and data-carrier store; Wherein,
Described data-carrier store is connected with described FPGA control module, is stored with the first configurator that powers on and call for described FPGA control module;
Described plc communication module is connected with described MCU unit with described host side respectively, and described host side is transferred in the described MCU unit by the configuration data to be updated that line of electric force sends;
Described MCU unit is connected with described data-carrier store, receives described configuration data to be updated, writes in the described data-carrier store after verification is correct, replaces described the first configurator.
Also store in the described data-carrier store and identical the second configurator of described the first configurator, as stand-by program.
Alternatively, can also store the application layer parameters of described FPGA control module in the described data-carrier store.
Alternatively, described MCU unit also is connected with described FPGA control module, and the described application layer parameters of storing in the described data-carrier store is carried out read-write operation.
Alternatively, described data-carrier store is flash memory.
Alternatively, the quantity of described FPGA control module is one or more, lays respectively in one or more inverters, optimizer or the intelligent electric meter.
For solving the problems of the technologies described above, the present invention also provides a kind of method of configuration data of the FPGA of renewal control module, comprises step:
A. host side broadcast frame notice begins the Reconfigurations data with the MCU unit of the corresponding connection of one or more described FPGA control module;
B. described host side sends a plurality of packets of comprising configuration data to be updated successively to one or more described MCU unit, described MCU unit (104) is the configuration data described to be updated in the described packet of verification successively, after verification is correct in the data writing storer (105);
C. described host side is inquired about all packets whether one or more described MCU unit receives described configuration data, if not, then skips to step D, if then skip to step G;
D. described host side resends described packet to the described MCU unit fixed point that does not receive described packet;
E. whether described host side receives described packet to the described MCU unit inquiry that resends described packet, if not, then skips to step F, if then skip to step G;
F. described host side sends the instruction that recovers the first configurator to the described MCU unit fixed point that still can't receive described packet;
G. described host side is notified described MCU unit transmitted signal to inform that described FPGA control module configurator upgrades to finish, need re-power and call new procedures.
Alternatively, after described step B, also comprise step before the step C:
I. described host side judges that whether all packets that comprise described configuration data to be updated send, and if not, wait for that then described host side continues to send, if then skip to step C.
Compared with prior art, the present invention has the following advantages:
MCU of the present invention (microprocessor) unit makes more flexibility and reliability of Data Update as the medium of Reconfigurations data.In addition, the present invention has utilized power line communication technology to the remote update such as the configuration data of the FPGA control module of inverter, optimizer or intelligent electric meter etc., remove the worry of traditional communication cable distribution from, be very suitable for photovoltaic monitoring, electricity meter-reading industry.
Description of drawings
The above and other features of the present invention, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, wherein:
Fig. 1 is the module diagram of system of configuration data of the renewal FPGA control module of one embodiment of the invention;
Fig. 2 is the method flow schematic diagram of configuration data of the renewal FPGA control module of one embodiment of the invention;
Fig. 3 is the method flow schematic diagram of configuration data of the renewal FPGA control module of another embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with specific embodiments and the drawings; set forth in the following description more details so that fully understand the present invention; but the present invention obviously can implement with the multiple alternate manner that is different from this description; those skilled in the art can be in the situation that do similar popularization, deduction without prejudice to intension of the present invention according to practical situations, therefore should be with content constraints protection scope of the present invention of this specific embodiment.
Fig. 1 is the module diagram of system of configuration data of the renewal FPGA control module of one embodiment of the invention.This FPGA control module goes for the equipment such as (miniature) inverter, (miniature) optimizer or intelligent electric meter of distributed photovoltaic power generation system, and quantity can be for one or more.As shown in Figure 1, this system 100 mainly comprises: the parts such as host side 102, plc communication module 103, MCU unit 104 and data-carrier store 105.Wherein, data-carrier store 105 is flash memory (Flash), is connected with FPGA control module 101, is stored with two parts of configurator A identical from one another and configurator B.Configurator A is configurator and the remote update replacement program that the confession FPGA control module 101 of system default powers on and calls.Configurator B only is stand-by program, does not do Remote configuration.In case the failure of configurator A Data Update, configurator B is copied in the address location of configurator A then as system recovery program.Plc communication module 103 is connected with MCU unit 104 with host side 102 respectively, and host side 102 is transferred in the MCU unit 104 by the configuration data to be updated that line of electric force 106 sends.MCU unit 104 is connected with data-carrier store 105, as the medium of configuration data, receives configuration data to be updated, in the data writing storer 105, replaces the first configurator after verification is correct, finishes the renewal of the configuration data of FPGA control module.
In addition, in data-carrier store 105, can also store the application layer parameters of FPGA control module 101, be used for the parameter that storage can be regulated, and also can control by long-range.MCU unit 104 also can be connected with FPGA control module 101 and communicate by letter, and the application layer parameters of storing in the data storer 105 is carried out read-write operation, to realize the power down protection to some key parameter.
The detailed process that configuration data upgrades and system is recovered of FPGA control module 101 of the present invention is described below:
Microprocessor (MCU unit 104) is the important component part in this system, and it carries out data read-write operation by the SPI universal serial bus to data storer 105.When 104 pairs of data storeies in MCU unit 105 carried out read-write operation, the I/O mouth that FPGA control module 101 is connected to data-carrier store 105 was set to high-impedance state.At this moment, MCU unit 104 has consisted of 3 line list group connected modes with data-carrier store 105.
Before configuration data upgrades, need to wipe former configuration program, the address location data at the configurator A place of FPGA control module 101 are emptied.
Then carry out programming instruction, the configuration data that needs are upgraded writes for FPGA control module 101 and powers in the address location that calls.
After finishing above operation, make FPGA control module 101 restart, at this moment, the configurator of FPGA control module 101 has been finished renewal.
After FPGA control module 101 starts, at first can carry out CRC check to configuration data, to detect loss of data, the entanglement that whether exists telecommunication to cause.
In case the verification failure, 104 of MCU unit can according to the pin DONE signal intensity of FPGA control module 101, recover system program.At first the data in the address location are emptied, then behind the data reading with the configurator B of FPGA control module 101, the mode by the page or leaf programming writes, until finish writing of all configuration datas.
Next the step content that adopts the system remote batch updating configuration data in above-described embodiment is described:
Based on power line communication technology (PLC), host side can be configured simultaneously to a plurality of terminals the renewal of data.With configuration file, send continuously via the plc communication module by host side.The sequence number of packet can be received under the statistic record in 104 of the MCU unit of terminal, in case data-bag lost occurs, then can notify host side again to send the lost package data.
Fig. 2 is the method flow schematic diagram of configuration data of the renewal FPGA control module of one embodiment of the invention.The present embodiment is continued to use element numbers and the partial content of previous embodiment, wherein adopts identical label to represent identical or approximate element, and has optionally omitted the explanation of constructed content.Explanation about clipped can be with reference to previous embodiment, and the present embodiment no longer repeats to give unnecessary details.
As shown in Figure 2, the method flow process mainly is to describe from the angle of host side 102, can comprise:
Execution in step S201, host side 102 broadcast frames notice begins the Reconfigurations data with the MCU unit 104 of one or more FPGA control module 101 corresponding connections;
Execution in step S202, host side 102 sends a plurality of packets of comprising configuration data to be updated successively to one or more MCU unit 104, MCU unit 104 just progressively receives behind the packet configuration data to be updated in the checking data bag successively, after verification is correct in the data writing storer 105;
Execution in step S203, whether the one or more MCU of host side 102 inquiries unit 104 receives all packets of configuration data, if not, then skips to step S204, if then skip to step S207;
Execution in step S204, host side 102 is to the MCU unit 104 fixed point retransmission data bags that do not receive packet;
Execution in step S205, whether host side 102 receives packet to MCU unit 104 inquiries of retransmission data bag, if not, then skips to step S206, if then skip to step S207;
Execution in step S206, host side 102 sends the instruction that recovers the first configurator to MCU unit 104 fixed points that still can't receive packet;
Execution in step S207, host side 102 notice MCU unit 104 transmitted signals are informed that FPGA control module 101 configurators upgrade and are finished, need re-power and call new procedures.
Fig. 3 is the method flow schematic diagram of configuration data of the renewal FPGA control module of another embodiment of the present invention.The key distinction of the present embodiment and previous embodiment is after the execution in step S202, can also comprise step before the execution in step S303:
Execution in step S202 ', host side 102 judges whether all packets that comprise configuration data to be updated send, and if not, waits for that then host side 102 continues to send, if then skip to next step S303.
The present invention proposes a kind of method that realizes the configuration of FPGA control module by power line communication technology (PLC), it has used flash memory (Flash) as data storage device, cooperate microprocessor and program, realize the remote update to FPGA control module configuration data.
MCU of the present invention (microprocessor) unit makes more flexibility and reliability of Data Update as the medium of Reconfigurations data.In addition, the present invention has utilized power line communication technology to the remote update such as the configuration data of the FPGA control module of inverter, optimizer or intelligent electric meter etc., remove the worry of traditional communication cable distribution from, be very suitable for photovoltaic monitoring, electricity meter-reading industry.
Although the present invention with preferred embodiment openly as above, it is not to limit the present invention, and any those skilled in the art can make possible change and modification without departing from the spirit and scope of the present invention.Therefore, every content that does not break away from technical solution of the present invention, all falls within the protection domain that claim of the present invention defines any modification, equivalent variations and modification that above embodiment does according to technical spirit of the present invention.
Claims (8)
1. a system (100) that upgrades the configuration data of FPGA control module (101) comprising: host side (102), plc communication module (103), MCU unit (104) and data-carrier store (105); Wherein,
Described data-carrier store (105) is connected with described FPGA control module (101), is stored with the first configurator that powers on and call for described FPGA control module (101);
Described plc communication module (103) is connected with described MCU unit (104) with described host side (102) respectively, and described host side (102) is transferred in the described MCU unit (104) by the configuration data to be updated that line of electric force (106) sends;
Described MCU unit (104) is connected with described data-carrier store (105), receives described configuration data to be updated, writes in the described data-carrier store (105) after verification is correct, replaces described the first configurator.
2. system according to claim 1 (100) is characterized in that, also stores in the described data-carrier store (105) and identical the second configurator of described the first configurator, as stand-by program.
3. system according to claim 2 (100) is characterized in that, also stores the application layer parameters of described FPGA control module (101) in the described data-carrier store (105).
4. system according to claim 3 (100), it is characterized in that, described MCU unit (104) also is connected with described FPGA control module (101), and the described application layer parameters of storing in the described data-carrier store (105) is carried out read-write operation.
5. system according to claim 1 (100) is characterized in that, described data-carrier store (105) is flash memory.
6. system according to claim 1 (100) is characterized in that, the quantity of described FPGA control module (101) is one or more, lays respectively in one or more inverters, optimizer or the intelligent electric meter.
7. method that adopts each described system (100) in the claim 1 to 6 to upgrade the configuration data of FPGA control module (101) comprises step:
A. host side (102) broadcast frame notice begins the Reconfigurations data with the MCU unit (104) of the corresponding connection of one or more described FPGA control modules (101);
B. described host side (102) sends a plurality of packets of comprising configuration data to be updated successively to one or more described MCU unit (104), described MCU unit (104) is the configuration data described to be updated in the described packet of verification successively, after verification is correct in the data writing storer (105);
C. whether described host side (102) inquiry one or more described MCU unit (104) receive all packets of described configuration data, if not, then skip to step D, if then skip to step G;
D. described host side (102) is retransmitted described packet to described MCU unit (104) fixed point that does not receive described packet;
E. whether described host side (102) receives described packet to described MCU unit (104) inquiry of retransmitting described packet, if not, then skips to step F, if then skip to step G;
F. described host side (102) sends the instruction that recovers the first configurator to described MCU unit (104) fixed point that still can't receive described packet;
G. described host side (102) is notified described MCU unit (104) transmitted signal to inform that described FPGA control module (101) configurator upgrades to finish, need re-power and call new procedures.
8. method according to claim 7 is characterized in that, also comprises step after described step B, before the step C:
I. described host side (102) judges that whether all packets comprise described configuration data to be updated send, and if not, wait for that then described host side (102) continues to send, if then skip to step C.
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| CN108873802A (en) * | 2018-08-02 | 2018-11-23 | 佛山职业技术学院 | A kind of circuit control system cleaning detection robot for photovoltaic module |
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| CN109408099A (en) * | 2018-09-13 | 2019-03-01 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Remote FPGA firmware code updating system, method and medium |
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