CN1797241A - Method for controlling clock in fluoresent display - Google Patents
Method for controlling clock in fluoresent display Download PDFInfo
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- CN1797241A CN1797241A CN 200410099017 CN200410099017A CN1797241A CN 1797241 A CN1797241 A CN 1797241A CN 200410099017 CN200410099017 CN 200410099017 CN 200410099017 A CN200410099017 A CN 200410099017A CN 1797241 A CN1797241 A CN 1797241A
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- display
- quarter
- bell
- initialization
- clock
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Abstract
The invention discloses a method for controlling a fluorescent display clock, comprising the steps of: (1) MCU initialization; (2) data memory initialization; (3) clock system initialization; (4) running a main program of the clock system; (5) running clock display subprograms. The invention uses microprocessor to control clock chip and display drive chip by the above 5 steps, to make time, date and related icons displayed on a vacuum fluorescent display screen and be able to control display brightness. The invention further realizes an alarming function of the fluorescent display clock.
Description
Technical field
The present invention relates to a kind of display control method of digital dock, relate to a kind of control method of clock in fluoresent display in particular.
Background technology
Digital dock in the market has the liquid crystal display clock, and this clock is because LCDs itself has shortcomings such as environmental suitability is poor, the visual angle is little, brightness is low.Vacuum fluorescent display screen (VFD) is widely used as the function display unit of household electrical appliance and commercial unit, has that environmental adaptation is wide, the visual angle is big, the brightness advantages of higher.But at present vacuum fluorescent display screen not have independent as clock and have alarm clock function and the example that is employed.The technological difficulties that clock in fluoresent display is used are time, date and relevant icon to be shown on vacuum fluorescent display screen, and can control display brightness by microprocessor control clock chip and display driver chip.
Summary of the invention
Technical matters to be solved by this invention provides a kind of control method of clock in fluoresent display, this method can be controlled clock chip and display driver chip by microprocessor, time, date and relevant icon is shown on vacuum fluorescent display screen also can control display brightness.
The technical solution used in the present invention: a kind of control method of clock in fluoresent display comprises the following steps: (1) MCU initialization:
Timer 0 is set to mode 2, and the 200us circulation starts timer 0, and the interruption of opening timer 0;
Timer 1 is set to mode 2, and the 250us circulation starts timer 1, and the interruption of opening timer 1;
Timer 2 is set to mode 0, starts timer 2, and the interruption of opening timer 0;
Serial port setting is a mode 0, displacement synchronously, baud rate fOSC/12;
Put timer 0 for high interrupt priority, open all interruptions, forbid that serial ports receives;
(2) data-carrier store initialization:
The Displaying timer initialization;
The control signal initialization;
The brightness initialization;
The quarter-bell initialization;
The night mode initialization;
The video data initialization;
(3) clock system initialization:
The reading and writing pattern of RTC is set;
Write time, date initial value;
4 grades of brightness are set;
Century and age are set;
Call next step master routine;
(4) operation clock system master routine:
Carry out the key bit scan;
From a plurality of time showing patterns, call wherein a kind of at least and call next step clock display subroutine;
(5) operation clock display subroutine:
Visit clock information buffer area;
Data processing is combined into fluorescence display display format data;
Call fluorescence display display format data;
Fluorescence display scanning;
Return the master routine of previous step.
A plurality of time showing patterns described in the step (4) comprise: time tag=" T " then call display mode normal time, detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode;
Time tag=" S " then allocating time display mode is set and detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode;
Time tag=" A " then call the quarter-bell display mode and detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode.
Beneficial effect of the present invention: the control method that the invention provides a kind of clock in fluoresent display, this method can be controlled clock chip and display driver chip by microprocessor by 5 steps, time, date and relevant icon is shown on vacuum fluorescent display screen also can control display brightness.The present invention has also further realized the alarm of clock in fluoresent display.
Description of drawings
Fig. 1 is the clock system initialization flowchart;
Fig. 2 is the clock main program flow chart;
Fig. 3 is a clock display subroutine process flow diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail: a kind of control method of clock in fluoresent display comprises the following steps: (1) MCU initialization:
Timer 0 is set to mode 2, and the 200us circulation starts timer 0, and the interruption of opening timer 0;
Timer 1 is set to mode 2, and the 250us circulation starts timer 1, and the interruption of opening timer 1;
Timer 2 is set to mode 0, starts timer 2, and the interruption of opening timer 0;
Serial port setting is a mode 0, displacement synchronously, baud rate fOSC/12;
Put timer 0 for high interrupt priority, open all interruptions, forbid that serial ports receives;
(2) data-carrier store initialization:
The Displaying timer initialization;
The control signal initialization;
The brightness initialization;
The quarter-bell initialization;
The night mode initialization;
The video data initialization;
(3) clock system initialization, as shown in Figure 1:
The reading and writing pattern of RTC is set;
Write time, date initial value;
4 grades of brightness are set;
Century and age are set;
Call next step master routine;
(4) operation clock system master routine, as shown in Figure 2:
Carry out the key bit scan;
At least call wherein a kind of and call next step clock display subroutine from a plurality of time showing patterns, specifically comprise: time tag=" T " then call display mode normal time, detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode;
Time tag=" S " then allocating time display mode is set and detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode;
Time tag=" A " then call the quarter-bell display mode and detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode;
(5) operation clock display subroutine, as shown in Figure 3:
Visit clock information buffer area;
Data processing is combined into fluorescence display display format data;
Call fluorescence display display format data;
Fluorescence display scanning;
Return the master routine of previous step.
Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (2)
1. the control method of a clock in fluoresent display comprises the following steps:
(1) MCU initialization:
Timer 0 is set to mode 2, and the 200us circulation starts timer 0, and the interruption of opening timer 0;
Timer 1 is set to mode 2, and the 250us circulation starts timer 1, and the interruption of opening timer 1;
Timer 2 is set to mode 0, starts timer 2, and the interruption of opening timer 0;
Serial port setting is a mode 0, displacement synchronously, baud rate fOSC/12;
Put timer 0 for high interrupt priority, open all interruptions, forbid that serial ports receives;
(2) data-carrier store initialization:
The Displaying timer initialization;
The control signal initialization;
The brightness initialization;
The quarter-bell initialization;
The night mode initialization;
The video data initialization;
(3) clock system initialization:
The reading and writing pattern of RTC is set;
Write time, date initial value;
4 grades of brightness are set;
Century and age are set;
Call next step master routine;
(4) operation clock system master routine:
Carry out the key bit scan;
From a plurality of time showing patterns, call wherein a kind of at least and call next step clock display subroutine;
(5) operation clock display subroutine:
Visit clock information buffer area;
Data processing is combined into fluorescence display display format data;
Call fluorescence display display format data;
Fluorescence display scanning;
Return the master routine of previous step.
2. according to the control method of the described a kind of clock in fluoresent display of claim 1, it is characterized in that: a plurality of time showing patterns described in the step (4) comprise: time tag=" T " then call display mode normal time, detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode;
Time tag=" S " then allocating time display mode is set and detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode;
Time tag=" A " then call the quarter-bell display mode and detect whether quarter-bell is opened, detects the quarter-bell code, called the tinkle of bells, the quarter-bell display mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410099017 CN1797241A (en) | 2004-12-27 | 2004-12-27 | Method for controlling clock in fluoresent display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410099017 CN1797241A (en) | 2004-12-27 | 2004-12-27 | Method for controlling clock in fluoresent display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1797241A true CN1797241A (en) | 2006-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410099017 Pending CN1797241A (en) | 2004-12-27 | 2004-12-27 | Method for controlling clock in fluoresent display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1797241A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548956B (en) * | 2012-04-05 | 2016-09-11 | 鴻海精密工業股份有限公司 | Alarm clock managing and controlling system and method of electronic device |
-
2004
- 2004-12-27 CN CN 200410099017 patent/CN1797241A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548956B (en) * | 2012-04-05 | 2016-09-11 | 鴻海精密工業股份有限公司 | Alarm clock managing and controlling system and method of electronic device |
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