CN107643907A - Timing, delay and timing cycle method and system based on timer count pattern - Google Patents
Timing, delay and timing cycle method and system based on timer count pattern Download PDFInfo
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- CN107643907A CN107643907A CN201710970102.XA CN201710970102A CN107643907A CN 107643907 A CN107643907 A CN 107643907A CN 201710970102 A CN201710970102 A CN 201710970102A CN 107643907 A CN107643907 A CN 107643907A
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Abstract
The invention discloses a kind of timing based on timer count pattern, delay and timing cycle method and system, timer is continuous counter pattern, and the clocking method carries out timing according to equation below：Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；Wherein, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；K is to overflow the number interrupted, initial value 0, when counter overflows every time, is then interrupted into the counter overflow of timer, k adds 1；M is the timing time pre-set.A kind of clocking method based on timer count pattern according to embodiments of the present invention, not only makes precision can reach microsecond rank, and do not interfere with the execution of non-interrupted program.
Description
Technical field
The present invention relates to timer technique field, specifically, more particularly to a kind of meter based on timer count pattern
When, delay and timing cycle method and system.
Background technology
Single-chip microcomputer is a kind of IC chip, has the central controller of data-handling capacity, random access memory, read-only
Memory, a variety of I/O mouths and system, timer/counter etc. are interrupted, it is extensive in sector applications such as Industry Control, consumer electronics.
From the eighties in last century, by 4 at that time, 8 single-chip microcomputers, 300MHz high-speed microprocessor till now.
By timer interruption timing, can be regularly produced in interruption entrance using the timer of single-chip microcomputer at present
The function of disconnected function, does a time radix, by recording the number into the timer interruption, it is possible to achieve clocking capability.
In SCM system, using timer interruption timing there is also some problems, although real-time is high, underaction, Er Qieji
After Shi Jingdu reaches microsecond rank, the frequency into interrupt function reaches a megahertz rank, and normal program can be caused fast
Speed performs.
The content of the invention
It is contemplated that at least solves one of above-mentioned technical problem of the prior art to a certain extent.
In view of this, the invention provides a kind of timing based on timer count pattern, delay and timing cycle method
And system, it is intended to improve accuracy of timekeeping and the execution to normal procedure will not have an impact.
In a first aspect, the invention provides a kind of clocking method based on timer count pattern, the timer is company
Continuous count mode, methods described carry out timing according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；During k is overflows
Disconnected number, initial value 0, when counter overflows every time, then interrupted into the counter overflow of timer, k adds 1；M is advance
The timing time of setting.
Further, the timer is the timer of single-chip microcomputer.
Further, the counter of the timer is 16.
Second aspect, the invention provides a kind of time-delay method based on timer count pattern, include following steps：
Judge whether the timer of timer runs to setting time point, above-mentioned timer count is based on if so, then performing
The clocking method of pattern.
The third aspect, the invention provides a kind of timing cycle method based on timer count pattern, including following step
Suddenly：
While performing the instruction in circulation block diagram, start timer, perform the above-mentioned meter based on timer count pattern
Shi Fangfa；
Judge whether to reach timing time set in advance, if so, then performing the instruction behind circulation block diagram；If it is not, then
Continue executing with the instruction in block diagram.
Fourth aspect, the invention provides a kind of timekeeping system based on timer count pattern, the timer is company
Continuous count mode, the system carry out timing according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；During k is overflows
Disconnected number, initial value 0, when counter overflows every time, then interrupted into the counter overflow of timer, k adds 1；M is advance
The timing time of setting.
Further, the timer is the timer of single-chip microcomputer.
Further, the counter of the timer is 16.
5th aspect, the invention provides a kind of delayed time system based on timer count pattern, including：
Whether judge module, the timer for judging timer run to setting time point；
Time delay module, for entering the timing of line delay according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；During k is overflows
Disconnected number, initial value 0, when counter overflows every time, then interrupted into the counter overflow of timer, k adds 1；M is advance
The timing time of setting.
6th aspect, the invention provides a kind of timing cycle system based on timer count pattern, is included：
Timing module, while circulating the instruction in block diagram for performing, start timer, counted according to following method
When：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；Its
In, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；K is to overflow the number interrupted, just
Initial value is 0, when counter overflows every time, is then interrupted into the counter overflow of timer, k adds 1；M is the timing pre-set
Time；
Judge module, judge whether to reach timing time set in advance, if so, then performing the finger behind circulation block diagram
Order；If it is not, then continue executing with the instruction in block diagram.
The technical effects of the invention are that：A kind of timing based on timer count pattern according to embodiments of the present invention,
Delay and timing cycle method and system, the clock frequency of the timer is megahertz rank, i.e. the cycle is microsecond rank, such as
Fruit uses interrupt mode timing, due to entering the too high execution efficiency that can influence non-interrupted function of frequency of interrupt function；And adopt
With the clocking method based on timer technique pattern, spilling counting is carried out by the spilling of timer counter, in will not entering
Disconnected function, i.e., the influence of no interrupt routine.Therefore by the present invention, it is not only able to accuracy of timekeeping is can reach microsecond rank, and
And the execution of normal procedure is not interfered with.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of step schematic diagram of clocking method based on timer count pattern of the embodiment of the present invention；
Fig. 2 is a kind of step schematic diagram of time-delay method based on timer count pattern of the embodiment of the present invention；
Fig. 3 is a kind of step schematic diagram of timing method based on timer count pattern of the embodiment of the present invention；
Fig. 4 is a kind of structural representation of delayed time system based on timer count pattern of the embodiment of the present invention；
Fig. 5 is a kind of structural representation of timing cycle system based on timer count pattern of the embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
As shown in figure 1, for the embodiment of the present invention a kind of clocking method based on timer count pattern the step of illustrate
Figure.Fig. 1 is refer to, a kind of clocking method based on timer count pattern according to embodiments of the present invention, timer is continuous
Count mode, method carry out timing according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；During k is overflows
Disconnected number, initial value 0, when counter overflows every time, then interrupted into the counter overflow of timer, k adds 1；M is advance
The timing time of setting.
Specifically, timer is the timer of single-chip microcomputer.The counter of timer is 16.Based on timer count mould
The clocking method of formula comprises the following steps that：The operation clock for setting timer is n MHz, is configured to continuous counter pattern, is opened
Counter overflow interrupts, and starts timer, then the counter of the timer adds the time needed for one to be 1/n microseconds；It is assuming that required
Timing is m microseconds, and the value of counter is c.In addition, counter overflows every time, it can all enter the counter overflow of timer
Interrupt, and k adds 1；Make k be equal to 0, reset counter (c is equal to 0)；Whether detection (c+k*216)/n is more than or equal to m, such as really bar
Part is true, then timing time reaches m microseconds.Wherein, n is the operation clock frequency of timer；C is the count value of counter, its
Initial value is 0；K is to overflow the number interrupted, initial value 0, when counter overflows every time, is then overflow into the counter of timer
Go out to interrupt, k adds 1；M is the timing time pre-set.
As shown in Fig. 2 for the embodiment of the present invention a kind of time-delay method based on timer count pattern the step of illustrate
Figure.Fig. 2 is refer to, a kind of time-delay method based on timer count pattern according to embodiments of the present invention, includes following step
Suddenly：
Judge whether the timer of timer runs to setting time point, above-mentioned timer count is based on if so, then performing
The clocking method of pattern.
Specifically, it is for the delay latency function of the counter in rice rabbit building blocks robotic programming pattern, the function
Just start to perform instruction below after timer runs to setting time.That is, after the completion of event one performs, delay
M microseconds perform event two again.
It is understood that perform event one.The operation clock for setting timer is n MHz, is configured to continuous counter mould
Formula, open counter overflow and interrupt, start timer, then the counter of the timer adds the time needed for one to be 1/n microseconds.It is false
If required timing is m microseconds, the value of counter is c.Make k be equal to 0, reset counter (c is equal to 0).Judging counter is
No spilling, when counter overflows every time, the counter overflow that can all enter timer interrupts, and k adds 1.When counter does not overflow
When going out, continue.Whether detection (c+k*216)/n is more than or equal to m, if condition is true, timing time reaches m microseconds.
Event two is performed again.
As shown in figure 3, for the embodiment of the present invention a kind of timing method based on timer count pattern the step of illustrate
Figure.Fig. 3 is refer to, a kind of timing cycle method based on timer count pattern according to embodiments of the present invention, including it is as follows
Step：
While performing the instruction in circulation block diagram, start timer, perform the above-mentioned meter based on timer count pattern
Shi Fangfa；
Judge whether to reach timing time set in advance, if so, then performing the instruction behind circulation block diagram；If it is not, then
Continue executing with the instruction in block diagram.
Specifically, it is the timing cycle function of the counter in rice rabbit building blocks robotic programming pattern, the function is to hold
Whether detection timer runs to the time of setting while instruction in row circulation process, if the finger very then performed below
Order, otherwise perform the instruction in circulation process.That is, event one and the circulation of event two perform m microseconds.
It is understood that being configured to continuous counter pattern, open counter overflow and interrupt, start timer, then this is fixed
When device counter add the time needed for one to be 1/n microseconds.Assuming that required timing is m microseconds, the value of counter is c.Make k
Equal to 0, reset counter (c is equal to 0).Execution event one.Event two is performed again.Judge whether counter overflows, work as counter
Overflow every time, the counter overflow that can all enter timer interrupts, and k adds 1.When counter is not spilt over, continue.Inspection
Survey whether (c+k*216)/n is more than or equal to m, if condition is true, timing time reaches m microseconds.If condition is false, redirect
To execution event one.
A kind of timekeeping system based on timer count pattern according to embodiments of the present invention, timer is continuous counter mould
Formula, system carry out timing according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；During k is overflows
Disconnected number, initial value 0, when counter overflows every time, then interrupted into the counter overflow of timer, k adds 1；M is advance
The timing time of setting.
Specifically, timer is the timer of single-chip microcomputer.The counter of timer is 16.Based on timer count mould
The clocking method of formula comprises the following steps that：The operation clock for setting timer is n MHz, is configured to continuous counter pattern, is opened
Counter overflow interrupts, and starts timer, then the counter of the timer adds the time needed for one to be 1/n microseconds；It is assuming that required
Timing is m microseconds, and the value of counter is c.In addition, counter overflows every time, it can all enter the counter overflow of timer
Interrupt, and k adds 1；Make k be equal to 0, reset counter (c is equal to 0)；Whether detection (c+k*216)/n is more than or equal to m, such as really bar
Part is true, then timing time reaches m microseconds.Wherein, n is the operation clock frequency of timer；C is the count value of counter, its
Initial value is 0；K is to overflow the number interrupted, initial value 0, when counter overflows every time, is then overflow into the counter of timer
Go out to interrupt, k adds 1；M is the timing time pre-set.
A kind of as shown in figure 4, structural representation of delayed time system based on timer count pattern for the embodiment of the present invention
Figure.Fig. 4 is refer to, provides a kind of delayed time system based on timer count pattern according to embodiments of the present invention, including：Judge
Module 40 and time delay module 42.
Specifically, whether judge module 40, the timer for judging timer run to setting time point.Be delayed mould
Block 42, for entering the timing of line delay according to equation below：Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then counting
When the time reach, if it is not, continuing to count.Wherein, n is the operation clock frequency of timer；C is the count value of counter, at the beginning of it
Initial value is 0；K is to overflow the number interrupted, initial value 0, when counter overflows every time, then into the counter overflow of timer
Interrupt, k adds 1；M is the timing time pre-set.
A kind of as shown in figure 5, structure of timing cycle system based on timer count pattern for the embodiment of the present invention
Schematic diagram.Fig. 5 is refer to, provides a kind of timing cycle system based on timer count pattern according to embodiments of the present invention,
It is characterised in that it includes：Timing module 50 and judge module 52.
Specifically, timing module 50, while circulating the instruction in block diagram for performing, timer is started, according to such as
Lower method carries out timing：Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing
Count；Wherein, n is the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；K is to overflow what is interrupted
Number, initial value 0, when counter overflows every time, then interrupted into the counter overflow of timer, k adds 1；M is to pre-set
Timing time.Judge module 52, judge whether to reach timing time set in advance, if so, then performing behind circulation block diagram
Instruction；If it is not, then continue executing with the instruction in block diagram.
A kind of according to embodiments of the present invention timing based on timer count pattern, delay and timing cycle method and
System, the clock frequency of the timer is megahertz rank, i.e. the cycle is microsecond rank, if using interrupt mode timing, by
In the too high execution efficiency that can influence non-interrupted function of frequency for entering interrupt function；And use based on timer technique pattern
Clocking method, spilling counting is carried out by the spilling of timer counter, interrupt function will not be entered, i.e., no interrupt routine
Influence.Therefore by the present invention, it is not only able to make accuracy of timekeeping can reach microsecond rank, and do not interfere with holding for normal procedure
OK.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can say this
Different embodiments or example described in bright book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of clocking method based on timer count pattern, it is characterised in that the timer is continuous counter pattern, institute
State method and timing is carried out according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein,
N is the operation clock frequency of timer；
C is the count value of counter, and its initial value is 0；
K is to overflow the number interrupted, initial value 0, when counter overflows every time, then into the counter overflow of timer
Disconnected, k adds 1；
M is the timing time pre-set.
A kind of 2. clocking method based on timer count pattern according to claim 1, it is characterised in that the timing
Device is the timer of single-chip microcomputer.
A kind of 3. clocking method based on timer count pattern according to claim 2, it is characterised in that the timing
The counter of device is 16.
4. a kind of time-delay method based on timer count pattern, it is characterised in that include following steps：
Judge whether the timer of timer runs to setting time point, if so, then performing timing side as claimed in claim 1
Method.
A kind of 5. timing cycle method based on timer count pattern, it is characterised in that comprise the following steps：
While performing the instruction in circulation block diagram, start timer, perform clocking method as claimed in claim 1；
Judge whether to reach timing time set in advance, if so, then performing the instruction behind circulation block diagram；If it is not, then continue
Instruction in execution block diagram.
6. a kind of timekeeping system based on timer count pattern, it is characterised in that the timer is continuous counter pattern, institute
State system and timing is carried out according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein,
N is the operation clock frequency of timer；
C is the count value of counter, and its initial value is 0；
K is to overflow the number interrupted, initial value 0, when counter overflows every time, then into the counter overflow of timer
Disconnected, k adds 1；
M is the timing time pre-set.
A kind of 7. timekeeping system based on timer count pattern according to claim 6, it is characterised in that the timing
Device is the timer of single-chip microcomputer.
A kind of 8. timekeeping system based on timer count pattern according to claim 7, it is characterised in that the timing
The counter of device is 16.
A kind of 9. delayed time system based on timer count pattern, it is characterised in that including：
Whether judge module, the timer for judging timer run to setting time point；
Time delay module, for entering the timing of line delay according to equation below：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；
Wherein,
N is the operation clock frequency of timer；
C is the count value of counter, and its initial value is 0；
K is to overflow the number interrupted, initial value 0, when counter overflows every time, then into the counter overflow of timer
Disconnected, k adds 1；
M is the timing time pre-set.
A kind of 10. timing cycle system based on timer count pattern, it is characterised in that including：
Timing module, while circulating the instruction in block diagram for performing, starts timer, and timing is carried out according to following method：
Judge whether (c+k* (2^16))/n is more than or equal to m, if so, then timing time reaches, if it is not, continuing to count；Wherein, n
For the operation clock frequency of timer；C is the count value of counter, and its initial value is 0；K is to overflow the number interrupted, initial value
For 0, when counter overflows every time, then interrupted into the counter overflow of timer, k adds 1；M is the timing time pre-set；
Judge module, judge whether to reach timing time set in advance, if so, then performing the instruction behind circulation block diagram；If
It is no, then continue executing with the instruction in block diagram.
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| CN108647163A (en) * | 2018-03-22 | 2018-10-12 | 上海机电工程研究所 | A kind of missile-borne clocking method interrupted based on external cycles |
| CN108734805A (en) * | 2018-05-30 | 2018-11-02 | 南通理工学院 | A kind of SCM Based garment enterprise parts counter |
| CN109471663A (en) * | 2018-10-30 | 2019-03-15 | 珠海格力智能装备有限公司 | The execution method and device of SCM program |
| CN112621391A (en) * | 2019-10-09 | 2021-04-09 | 上海宝信软件股份有限公司 | Visual continuous annealing furnace roller automatic grinding method and medium |
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Application publication date: 20180130 |