Posts

Showing posts from February, 2022

sequential (48) chosen clock line

Image
  https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_25.html . Ref:  https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_80.html  . . . Me: Indeed, we can use it in this way. . if (commutator_a = true) // Control line create a signal of 1,1,1 { Network serial communication = true; } else if (commutator_b = true) // Control line create a signal of 0,1,1 { Internal serial communication = true; // I give you an example of internal serial communication . for (int i =0; i<10; i++) { Array k[i] = i; } } else if (commutator_c = true) // Control line create a signal of 0,0,0 { Internal parallel communication = true; Parallel input syndronize chosen clock line  } ==

sequential (39) Tri State buffer

Image
https://wodewangzhishime.blogspot.com/2022/02/bach-request-poison-gas-from.html . Ref:  https://wodewangzhishime.blogspot.com/2022/03/httpswodewangzhishime_13.html . . . John : See the Picture above.  Each output bit has a tristate buffer.  In another words,  the parallel output must be enabled.  I give you an example.  . Int register_a = 1010 Int register_b = register_a. . John : In this case, the parallel output of register_a is enabled. . Me: Ok. . John: The parallel output of register_b is disable cause register_b is being set by the others only. register_b is not gonna set the others. Me: It's the concept of "fields of datas". John : In code, we represent them by this way. . Subject [Ststem] Object [register_a] Output available [true]  . Subject [System] Object [register_b] Output available [false]  . John : The system disable the output from register_b.

sequential (45) no realistic serial circuit (clock line)

Image
  https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_80.html . Ref: https://wodewangzhishime.blogspot.com/2022/06/httpswodewangzhishime_13.html . . . John: Now, we look at the picture above. Which part is correct? Me: Normally, the part of left hand side is correct. That mean, when the clock line is on Up cycle, Gate A and Gate B are on Up cycle. John: You're wrong. The part of right hand side is correct too. Me: That mean, when the clock line is on Up cycle, Gate A can be on Up cycle and Gate B can be on down cycle. John: You're correct.

sequential (47) chosen clock line

Image
https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_62.html . Ref: https://wodewangzhishime.blogspot.com/2022/06/what-does-he-need.html . . . Me: R0(1),R0(2),R0(3),R0(4) form a register called register_a. . If (Control = 1,1,1) { Commutator_a = chosen. } else if (Control = 0,1,1) { Commutator_b = chosen. } else if (Contol = 0, 0,0) { commutator_c = chosen; } else if (Control = 0,0,1) { No commutator is chosen; // the status is mask - interrupt. }

sequential (52) Architecture

Image
https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_14.html . Ref:  https://kamchihau.blogspot.com/2022/11/impact.html . . . John: The picture above is the normal architecture of control.  There're 3 bits. They are b1, b2 and b3 . 1) The Output of Bit 1 control the load shift line.  2) The Output of Bit 2 control the Output Availability line.  3) The Output of Bit 3 control the Falling Edge trigger line.  . Me: If I wanna change the value of them,  how? . Me: The modulator of RJ45 will send a signal to them during an up cycle.  For example,  the modulator send a signal of (1.1.0) them. As a result,  the Output of Bit 1 will be 1, the Output of Bit 2 will be 1 and the Output of Bit will be 0. . John : In another words,  the load shift line will be 1, the Output Availability line will be 1 and the falling edge trigger line will be 0.

learning and teaching (15) Aden Gulf disaster

https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_12.html . Ref:  https://wodewangzhishime.blogspot.com/2021/08/plug-off-cable.html . John : Miuson is the person in this link. https://chihaukam.blogspot.com/2025/10/john-take-look.html?m=1 . Me: Ok. John : See. https://wodewangzhishime.blogspot.com/2022/06/httpswodewangzhishime.html?m=1 The matter isn't over yet. ____________ . Kelvin : John said,  "Kelvin hacked the database of the hospital. " . Mary: Correct,. Kelvin : My hacking techniques is so high that nobody can find that I've hacked the database of the hospital. You ask John to provide evidence that I have hacked the database of hospital. Mary: John is unable to give any evidence. Kelvin : Then, you ask John to shut up . ____ . Bradley: Kill those students, e.g., Mary. Kelvin : She is a naive person who can't learn any hacking techniques from me. Bradley : I don't care. Kill her. Kelvin : Please. Bradley : Can't you hear me ? Ki...

learning and teaching (32) China teacher student

https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_11.html . Ref: https://wodewangzhishime.blogspot.com/2021/10/httpswodewangzhishime_18.html . John: Miuson is the person in this link.  https://johnchihau.blogspot.com/2026/04/blog-post.html?m=1 Me: Ok. John : Have a look. https://chihaukam.blogspot.com/2025/05/medical-practitioner-has-authority-and.html?m=1 . The matter isn't over yet. . __ . Kelvin : John and his neighbor are example. They are surveillanced by the satellite of America. It's educational. Mr. Leung (The officer of the Land department of Hong Kong): Yes,. Kelvin : See. I click a button. The monitor of my notebook show that the 2 illegal buildings of John's neighbour are 200 sq meter. This lesson is my special favour to you. Mr. Leung : Yes,. Kelvin : So, you honestly tell John and his neighbor in a manner of self-esteem, " My professor treat me so good. ". __ . Bradley : Kill those students,  e.g., Mr. Leung.  Kelvin : Please...

sequential (80) motor

Image
https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_40.html . Ref:  https://wodewangzhishime.blogspot.com/2021/11/httpswodewangzhishime_35.html . . . 1) if the cicuit is induction-orientation circuit, the voltage lead the current. 2) if the circuit is capacitance-orientation circuit, the current lead the voltage. . . Me: What is induction motor ??It is magnetic. Therefore, its circuit is inductor-orientation. John: However, the current of the stator is lagged behind the voltage of the stator, and then, the rotor rotate slowly. Me: Therefore, we mut let the circuit become a capacitance-orientation circuit.. . Therefore , we add a justify capacitor on the wire of W. . John: We don't always add a justify capacitor on the wire of W. . Sometimes, we add a series of justify resistors, R1,2,3,4, on the wire of W. . . Note: R1,2,3,4 represents resisors 1,2,3,4 . Note:  1) After you add a resitors,  the magnetic flux of the stator drop, the current lead the voltag...

sequential (10) RJ45 (protocol) A Pulse

Image
https://wodewangzhishime.blogspot.com/2022/02/the-definition-of-aliens-differing-in.html . Ref:  https://wodewangzhishime.blogspot.com/2022/03/httpswodewangzhishime_21.html . . John : Take a look.   https://wodewangzhishime.blogspot.com/2023/11/httpswodewangzhishime_29.html?m=1  . It say, "Client Side has 2 V current flow. ". Then, the physical layer doesn't depend on the Pulse from the Server side.  . Me: You're wrong.  The current from the Client side is direct current.  It has no Pulse.  . John: Therefore,  even if there's no data from the Server side, a basic packaged wave from the Server side is needed by the client side.  And, this packaged wave will be the Pulse of the physical layer.   . Me: A Pulse mean a Clk line.  . John : There's a pull up resistor in the Client side.  What's the effect of it? Originally,  Client side is 2 V and Phy Side is 1 V. After the pull up resistor, it become that the Client s...

sequential (13) no realistic serial circuit (a counter)

Image
https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime_3.html . Ref: https://wodewangzhishime.blogspot.com/2022/01/httpswodewangzhishime_90.html . . . John: Look at the first picture. Clock line is from the RJ45. Me: OK. John: This clock line is shared by "the register of port A" and the "Counter" as well. Me: OK. . ======== . John: Now, we look at the 2nd picture above. It is a counter.  It say if Q0,Q1,Q2 are high, FF4 toggle. However, FF4 will never toggle. Me: Why will FF4 never toggle? John: The clock-input for FF3 is forever "Down cycle", Q2 is forever low. How can FF4 toogle?  . 1) Normally, when the clock line is Up cycle indeed, the clock-input for FF3 is Up cycle.  2) However, in our case, the clock line is Up cycle indeed.  The clock-input For FF3 keep down cycle.  .

sequential (26) interrupting

Image
https://wodewangzhishime.blogspot.com/2022/02/httpswodewangzhishime.html . Ref:  https://kamchihau.blogspot.com/2023/02/sequential-7.html  . . . John: Take a look.  https://wodewangzhishime.blogspot.com/2022/03/httpswodewangzhishime_13.html . It mention about the difference between real interrupt and mask interrupt.  Me: OK. John: Sometimes, we don't call it as a clock line of serial input. Sometimes, we call it as a Clock line of Thread. Me: OK. John: You can compare the 2 pictures above. The first picture is that R0(1) is at the stage of Mask interrupt. The second picture is that R0(1) is on the clock line of "process". In code, we have  . If (condition = fit) { Windows drawing (); } . John: Take a look.  https://wodewangzhishime.blogspot.com/2023/12/sequential-99.html . It mention about  how  the fields work .Or, we can intepret it in this way. . If condition isn't fit Subject[R0(1)] Interrupt status [Mask interrupt] Object [] . If Co...

Learning and teaching (46) Taiwan aircrash

https://wodewangzhishime.blogspot.com/2022/01/httpswodewangzhishime_90.html . Ref:   https://wodewangzhishime.blogspot.com/2021/07/httpswodewangzhishime_74.html . John : Miuson is the person in this link.  https://wodewangzhishime.blogspot.com/2022/01/httpswodewangzhishime_72.html?m=1  .  Mr. N is my friend.  At the weekend,  we're used to gather together at the park downstairs.   We drink beers. We chat. We have some fun. ______________ . Kelvin: Hey ! Man. John is an example. He is surveillanced by the satellite.  It's educational.   . Mr. Lau (a medical personnels): Ok. . Kelvin : Come close to me. Look at this camera.  It hack the satellite of America.  Through it, do you see a person drinking beers and having fun with John at the park?   Mr. Liu (a medical personnels of Hong Kong): Yes,. Kelvin : He is Mr. N . He is John's friends  . . Kelvin put his notebook on the desk top and click a button....