IC697ACC720
IC697ACC720
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GE热销：
GE697系列
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IC697ACC621
IC697ACC624
IC697ACC644
IC697ACC700
IC697ACC701
IC697ACC702
IC697ACC715
IC697ACC720
IC697ACC721
IC697ACC722
IC697ACC723
IC697ACC724
IC697ACC726
IC697ACC727
IC697ACC728
IC697ACC729
IC697ACC730
IC697ACC732
IC697ACC735
IC697ACC744
IC697ACC800
IC697ACC801
IC697ACC802
IC697ACC803
IC697ACC804
IC697ACC805
IC697ACC806
IC697ACC820
IC697ACC821
IC697ACC822
IC697ACC900
IC697ADC701
IC697ADC701RR
IC697ADS701
IC697ALG230
IC697ALG230RR
IC697ALG320
IC697ALG320RR
IC697ALG440
IC697ALG440RR
IC697ALG441
IC697ALG441RR
IC697BEM711
IC697BEM711RR
IC697BEM713
IC697BEM713RR
IC697BEM715RR
IC697BEM721
IC697BEM721RR
IC697BEM731
IC697BEM731RR
IC697BEM733
IC697BEM733RR
IC697BEM741
IC697BEM741RR
IC697BEM761
IC697BEM761RR
IC697BEM763RR
IC697BEM764RR
IC697CBL700
IC697CBL709
IC697CBL803
IC697CBL811
IC697CBL826
IC697CGR772
IC697CGR935
IC697CGR935RR
IC697CHS750
IC697CHS750RR
IC697CHS770
IC697CHS771
IC697CHS782
IC697CHS782RR
IC697CHS783
IC697CHS783RR
IC697CHS790
IC697CHS790RR
IC697CHS790xSV
IC697CHS791
IC697CHS791RR
IC697CMM711
IC697CMM711RR
IC697CMM712
IC697CMM712RR
IC697CMM721
IC697CMM721RR
IC697CMM731RR
IC697CMM741
IC697CMM741RR
IC697CMM742
IC697CMM742RR
IC697CMM798RR
IC697CMM799RR
IC697CPM790
IC697CPM790RR
IC697CPM914RR
IC697CPM915RR
IC697CPM924RR
IC697CPM925RR
IC697CPU731
IC697CPU731RR
IC697CPU732RR
IC697CPU771RR
IC697CPU772RR
IC697CPU780
Data Path module design, its module to achieve microprocessor-to-GPIB interface function of the data, the internal register of the controller to read and write operations. Multi-line Message Decoder Circuit, decoding circuit is designed to produce logic function signal, to the controller sent the remote message and local message decoding, to achieve the control of the interface functions. Program design, the program design mainly completes the interface initialization, the main control PC sends the message to the instrument as well as receives the message and to the data analysis processing and so on. All the actions on the bus are to write or read data to the internal register of Nat9914 by PC, which makes the interface realize the corresponding function change. The experimental results, through the overall system building, to complete the data transmission between the instrument and the bus. The experimental results are analyzed by using AH and L functions to receive data from GPIB bus. AH and L function receive data experimental results waveform instrument through Indata [7.0] data port to address register ADR write the instrument on the GPIB bus address 11H. At the 4th clock down edge device ATN signal was received, indicating AH function from AIDS state to ANRS state; at the 5th Clock Down Edge Still Atn signal was received, indicating AH function from ANRS state to ACRS state, and RFD signal was sent, tells the controller that it is ready to receive GPIB interface commands; at six clock descent edges, Dav signals from the bus are detected, indicating that the AH function moves from ACRS to ACDS. The System Controller then sends the address command 31H over the DIO line, outputs the MLA signal through the multiline message decoder, and at the 7th clock descent edge, the L function enters the LADS state from the LIDS under the MLA & ACDS, indicating that the instrument has been ordered by the listener, at the 8th clock descent edge, the GPIB controller detects the t signal, indicating that AH function enters the AWNS state and sends a DAC signal to tell the controller that the interface command has been accepted At the 9th clock drop edge, the system controller cancels the DAV and ATN signals, indicating that the AH function enters the ANRS state, at which point a three-wire hooking process has been completed. Under the action of ATN OF 0, the l function enters the LACS state, at which time the instrument officially enters the hearer state. The other transmission processes are similar to the data received by the listener and are not repeated here.
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