CN101764569B - Timer/counter multifunctional multiplexing algorithm and device - Google Patents
Timer/counter multifunctional multiplexing algorithm and device Download PDFInfo
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- CN101764569B CN101764569B CN200910110677XA CN200910110677A CN101764569B CN 101764569 B CN101764569 B CN 101764569B CN 200910110677X A CN200910110677X A CN 200910110677XA CN 200910110677 A CN200910110677 A CN 200910110677A CN 101764569 B CN101764569 B CN 101764569B
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- timer
- counter
- port
- multifunctional multiplexing
- motor
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Abstract
The invention provides a timer/counter multifunctional multiplexing method. The method comprises that a timer/counter; the voltage interruption point of a PG motor is set as a zero crossing point and the sum of motor shutdown intervals is set through the timer/counter, and the motor shutdown intervals are adjusted by using actual rotating speed detected by a motor feedback device, so the adjustment and the control of the working voltage of the PG motor are realized; triggering is interrupted to enable the timer to counter the interval between two adjacent points to monitor pulse interval. The invention additionally provides a timer/counter multifunctional multiplexing device. By using the port definition and the triggering interruption of the timer/counter, the invention has the advantages that the multifunctional multiplexing of the PG motor control and the pulse interval monitoring is realized and the chip resource of the timer/counter is properly utilized.
Description
Technical field
The present invention relates to a kind of timer/counter multifunctional multiplexing method, particularly a kind of timer/counter multifunctional multiplexing method that can realize PG Electric Machine Control and pulse spacing monitoring.The invention still further relates to a kind of timer/counter multifunctional multiplexing device.
Background technology
Timer/counter in the single-chip microcomputer is used widely in various control circuits at present.Yet common timer/counter all only is used to realize simple function, does not possess multifunctional multiplexing.
Summary of the invention
In order to solve above-mentioned prior art problems, be necessary to provide a kind of timer/counter multifunctional multiplexing method.
In order to solve above-mentioned prior art problems, also be necessary to provide a kind of timer/counter multifunctional multiplexing device.
A kind of timer/counter multifunctional multiplexing method comprises one timer/counter is provided; Through the voltage interruption point of setting the PG motor is the time interval sum that zero crossing and motor stop, and the actual speed adjustment motor dwell time interval that utilizes the motor feedback to measure, thereby the adjustment that realizes the PG motor operating voltage is controlled; With make timer count the time interval of consecutive points through down trigger, thereby the monitoring pulse spacing.
In the timer/counter multifunctional multiplexing method of the present invention, described timer/counter is 16 bit timing device/counters.
In the timer/counter multifunctional multiplexing method of the present invention, comprise that also it is free mode of operation that timer/counter is set; Definition is used for the port of PG Electric Machine Control; Be used for the port of pulse spacing monitoring with definition.
In the timer/counter multifunctional multiplexing method of the present invention, the port that definition is used for the PG Electric Machine Control comprises zero passage interruptive port, motor feedback interruptive port and is used to produce the port of the output of timer interval break period, realization SCR control signal.
In the timer/counter multifunctional multiplexing method of the present invention, the port that definition is used for the pulse spacing monitoring comprises pulse monitoring interruptive port.
In the timer/counter multifunctional multiplexing method of the present invention, comprise that also the time of utilizing pulse to monitor to calculate adjacent two zero crossings monitors the frequency of AC power.
A kind of timer/counter multifunctional multiplexing device is characterized in that: comprise timer/counter, described timer/counter comprises port that is used for the PG Electric Machine Control and the port that is used for the pulse spacing monitoring.
In the timer/counter multifunctional multiplexing device of the present invention; Also comprise infrared receiving-transmitting device; The port of described PG Electric Machine Control comprise zero passage interruptive port, motor feedback interruptive port and be used to produce timer break period at interval, realize that the port of the output of SCR control signal, the port of described pulse spacing monitoring comprise that the infrared reception that is used to receive the interrupt signal that described infrared receiving-transmitting device sends interrupts broken ends of fractured bone mouth.
A kind of timer/counter multifunctional multiplexing device comprises the timer/counter that is used for above-mentioned arbitrary described timer/counter multifunctional multiplexing method.
Compared to prior art; Timer/counter multifunctional multiplexing method of the present invention and device utilize port definition and the down trigger of timer/counter to realize the multifunctional multiplexing that PG Electric Machine Control and pulse spacing are monitored, good use the resources of chip of timer/counter.
Description of drawings
Fig. 1 is the block diagram of timer of the present invention/comparator multifunctional multiplexing device.
Fig. 2-the 3rd, timer of the present invention/comparator multifunctional multiplexing method realizes the sketch map of PG Electric Machine Control.
Fig. 4-the 5th utilizes timer/counter multifunctional multiplexing method of the present invention to realize the sketch map that remote control receives.
Embodiment
Seeing also Fig. 1, is the block diagram of timer of the present invention/comparator multifunctional multiplexing device.Described timer/comparator multifunctional multiplexing dress comprises that 16 bit timings device/counter device, described timer/counter comprise port that is used for the PG Electric Machine Control and the port that is used for the pulse spacing monitoring.The port of described PG Electric Machine Control comprise zero passage interruptive port INTP0, motor feedback interruptive port INTP1 and be used to produce timer break period at interval INTIM000, realize that the port of the output of SCR control signal, the port of described pulse spacing monitoring comprise the pulse monitoring interruptive port INTP2 that is used to receive the interrupt signal that described infrared receiving-transmitting device sends.In the change execution mode of timer of the present invention/comparator multifunctional multiplexing device; Described timer/counter multifunctional multiplexing device also comprises infrared receiving-transmitting device (like TV remote etc.), and described pulse monitoring interruptive port INTP2 is a fracture in the infrared reception.
Timer/counter multifunctional multiplexing method of the present invention adopts timer/counter to realize control and pulse spacing monitoring to the PG motor.Realize that with 16 bit timings device/counter PG Electric Machine Control and remote controller are received as example, are described in detail timer/counter multifunctional multiplexing method of the present invention below.
Wherein, timer/counter each pin of being used for the PG Electric Machine Control comprises: INTP0 zero passage interruptive port; INTP1 motor feedback interruptive port;
INTIM000 is used to produce timer interval break period, realizes the output of SCR control signal, and definition CR00 is the comparand register of 16 bit timings/counter, and TM00 is the counter register of 16 bit timings/counter.
The pin that timer/counter is used for the pulse spacing monitoring comprises:
INTP2 pulse monitoring interruptive port (being fracture in the infrared reception in this execution mode).
Seeing also Fig. 1-2, is the sketch map that timer of the present invention/comparator multifunctional multiplexing method realizes the PG Electric Machine Control.Please consulting Fig. 3-4 simultaneously, is to utilize timer/counter multifunctional multiplexing method of the present invention to realize the sketch map that remote control receives.
Utilize 16 a bit timings/counter to realize the time that produces the timer interruption is calculated and controls in the remote controller code monitoring simultaneously, thereby thereby control silicon controlled angle of flow adjustment PG motor operating voltage in the PG motor.Wherein, the concrete implementation procedure and the principle of the multifunctional multiplexing of PG Electric Machine Control and pulse spacing monitoring are following:
1,16 bit timings/comparator being set earlier is the free-running operation pattern, and counter is zero clearing when overflowing.
2, to the realization of PG Electric Machine Control: shown in Fig. 1-2, X=(B-A), A, C, E are zero crossing, and B, D are the timer point of interruption.The CR00=TM00 that B is ordered (A)+X, wherein X is the blanking time that motor stops, and regulates X through feeding back with reference to motor.
If A is the zero passage point of interruption, at this moment close the PG motor power, read counter register TM00 at the A point, giving comparand register CR00 the value of TM00+X, open 16 bit timing devices simultaneously and interrupt.When counter equals CR00, produce and interrupt, like B point among Fig. 1.Timer INTIM00 interrupts and can trigger at the B point, at this moment opens the PG motor power.
Measured the motor actual speed through the motor speed feedback again, the rotating speed and the actual speed that relatively need are adjusted X.
3, the realization of pulse spacing monitoring: shown in Fig. 3-4; If trailing edge A, B point are pulse monitoring interruptive port INTP2 down trigger point; When A, B point down trigger, write down the counter TM00 value of each timing/comparator; Ask the poor of two TM00 values simultaneously, be the interpulse period of remote controller.Process above the circulation.Just can monitor the time interval of these pulses.For example, trigger through external interrupt, timer is counted the time interval of consecutive points, as shown in Figure 4 the time interval=TM00 (B)-TM00 (A).Utilizing in the 16 bit timing devices free timing TM00 to add that a period of time is controlled produces regularly break period.
In the above-mentioned execution mode of the present invention, in 16 bit timings/comparator because free schema automatic clear after counter is FFFFH, if during the pulse monitoring on this transition point, need give up the value of this point so.So in practical application, regularly/figure place of comparator is high more good more because like this transition point relative pulse time just few more.
In other change execution modes of timer of the present invention/comparator multifunctional multiplexing method, above-mentioned pulse spacing monitoring can also be used for other and use.As, the time of utilizing the pulse monitoring technique to calculate adjacent two zero crossings is monitored frequency f=1/2 (C-A) of AC power.So just realized having realized the control of PG motor with 16 a bit timings/counter.
Timer/counter multifunctional multiplexing method of the present invention and device utilize port definition and the down trigger of timer/counter to realize the multifunctional multiplexing that PG Electric Machine Control and pulse spacing are monitored, good use the resources of chip of timer/counter.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. timer/counter multifunctional multiplexing method comprises:
One timer/counter is provided;
The voltage interruption point of setting the PG motor through described timer/counter is the time interval sum that zero crossing and motor stop; And the actual speed adjustment motor dwell time interval that utilizes the motor feedback to measure, thereby the adjustment that realizes the PG motor operating voltage is controlled; With
Make timer count the time interval of consecutive points through described timer/counter down trigger, thus the monitoring pulse spacing.
2. timer/counter multifunctional multiplexing method as claimed in claim 1 is characterized in that: described timer/counter is 16 bit timing device/counters.
3. timer/counter multifunctional multiplexing method as claimed in claim 1 is characterized in that: comprise that also it is free mode of operation that timer/counter is set; Definition is used for the port of PG Electric Machine Control; Be used for the port of pulse spacing monitoring with definition.
4. timer/counter multifunctional multiplexing method as claimed in claim 3 is characterized in that: the port that definition is used for the PG Electric Machine Control comprises zero passage interruptive port, motor feedback interruptive port and is used to produce the port of the output of timer interval break period, realization SCR control signal.
5. timer/counter multifunctional multiplexing method as claimed in claim 3 is characterized in that: the port that definition is used for the pulse spacing monitoring comprises pulse monitoring interruptive port.
6. timer/counter multifunctional multiplexing method as claimed in claim 3 is characterized in that: comprise that also the time of utilizing pulse to monitor to calculate adjacent two zero crossings monitors the frequency of AC power.
7. timer/counter multifunctional multiplexing method as claimed in claim 6, it is characterized in that: counter is automatic clear when overflowing.
8. multiplexer that adopts each said timer/counter multifunctional multiplexing method in the claim 1 to 7; It is characterized in that: comprise timer/counter; Described timer/counter comprises port that is used for the PG Electric Machine Control and the port that is used for the pulse spacing monitoring; Also comprise infrared receiving-transmitting device; The port of described PG Electric Machine Control comprise zero passage interruptive port, motor feedback interruptive port and be used to produce timer break period at interval, realize that the port of the output of SCR control signal, the port of described pulse spacing monitoring comprise that the infrared reception that is used to receive the interrupt signal that described infrared receiving-transmitting device sends interrupts broken ends of fractured bone mouth.
9. a timer/counter multifunctional multiplexing device is characterized in that: comprise the timer/counter that is used for like the arbitrary described timer/counter multifunctional multiplexing method of claim 1-7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910110677XA CN101764569B (en) | 2009-10-20 | 2009-10-20 | Timer/counter multifunctional multiplexing algorithm and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910110677XA CN101764569B (en) | 2009-10-20 | 2009-10-20 | Timer/counter multifunctional multiplexing algorithm and device |
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| Publication Number | Publication Date |
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| CN101764569A CN101764569A (en) | 2010-06-30 |
| CN101764569B true CN101764569B (en) | 2012-06-13 |
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| CN200910110677XA Expired - Fee Related CN101764569B (en) | 2009-10-20 | 2009-10-20 | Timer/counter multifunctional multiplexing algorithm and device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237845B (en) * | 2011-07-06 | 2013-06-19 | 四川长虹电器股份有限公司 | Method for controlling motor |
| CN110635726A (en) * | 2019-10-18 | 2019-12-31 | 中国电子科技集团公司第四十三研究所 | Speed detection method and detection circuit for non-inductive brushless motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299182A (en) * | 1999-12-08 | 2001-06-13 | 中国科学院武汉物理与数学研究所 | Method for using timing system of computer to control step motor |
| CN1068154C (en) * | 1995-08-23 | 2001-07-04 | 三星电子株式会社 | Model reference following commutation circuit and adjusting method thereof |
| CN2456132Y (en) * | 2000-12-08 | 2001-10-24 | 中国科学院长春光学精密机械与物理研究所 | Controlling system for preventing runaway of photoelectric transit |
| CN1779722A (en) * | 2004-11-18 | 2006-05-31 | 华为技术有限公司 | Device for acquiring apparatus running time |
| CN101320337A (en) * | 2008-07-16 | 2008-12-10 | 北京中星微电子有限公司 | Timer and its implementing method |
-
2009
- 2009-10-20 CN CN200910110677XA patent/CN101764569B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068154C (en) * | 1995-08-23 | 2001-07-04 | 三星电子株式会社 | Model reference following commutation circuit and adjusting method thereof |
| CN1299182A (en) * | 1999-12-08 | 2001-06-13 | 中国科学院武汉物理与数学研究所 | Method for using timing system of computer to control step motor |
| CN2456132Y (en) * | 2000-12-08 | 2001-10-24 | 中国科学院长春光学精密机械与物理研究所 | Controlling system for preventing runaway of photoelectric transit |
| CN1779722A (en) * | 2004-11-18 | 2006-05-31 | 华为技术有限公司 | Device for acquiring apparatus running time |
| CN101320337A (en) * | 2008-07-16 | 2008-12-10 | 北京中星微电子有限公司 | Timer and its implementing method |
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| CN101764569A (en) | 2010-06-30 |
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