JPS62222322A - Keyboard control system - Google Patents

Abstract

PURPOSE:To reduce the overhead in the device body side by monitoring the time of the start of typamatic operation from key depression by the keyboard side to generate an interruption and using a timer to repeat the key input in this state by the device body side. CONSTITUTION:A computer system consists of a display device, a computer 2 of the main system, and a keyboard. The keyboard is provided with an encoder 4, a one-chip microprocessor 5, serial interface controllers 6 and 7, and a matrix 10. The keyboard is so constituted that key depression and the start and the end of the typamatic state are reported to the main system 2. The main system 2 displays a character corresponding to key depression on the display device and decides whether the depressed key is a typamatic key or not. If it is decided that the depressed key is a typamatic key, it is displayed and the timer for repeat is started. When the typamatic state is terminated, the timer is stopped.

Description

[Detailed Description of the Invention] [Summary] The keyboard side monitors the time from when a key is pressed to when the Typermatic operation starts, and generates an interrupt only when a key is pressed and when the Typermatic operation starts and ends, and repeats the manual input of the keys in the Typermatic state. This is done by the main unit using a repeat timer.

[Industrial application field]

TECHNICAL FIELD The present invention relates to a keyboard control method, and more particularly to a method for controlling typermatic movement of a keyboard.

[Prior art and problems]

FIG. 5 is a diagram showing an outline of an example of a computer system.

In FIG. 5, 1 is a display, 2 is a main body computer, and 3 is a keyboard. keyboard 3
At the top, there are function keys, data keys, cursor movement keys, ENTER key, etc. When a key on the keyboard 3 is pressed, an interrupt is made to the main body computer 2, and key data D consisting of ■D (device machine number), a modifier, and a key address is taken into the computer 2. The modifier will be described later. For example, if you press and immediately release the data key a on keyboard 3, only one character a will be displayed on the screen of display 1, and if you continue to press the data key a, the character a will appear on the screen of display 1. The characters are displayed consecutively on the display 1.

FIG. 6 is a diagram showing an example of an electric circuit on the keyboard 3 side. In FIG. 6, 4 is an encoder, 5 is a one-chip microprocessor, 6 and 7 are serial interface controllers, 8 is a control memory of the main computer, 9 is a processor of the main computer, and 10 is a matrix. ing. When a key is pressed, the signals on the X and Y lines corresponding to the pressed position become logic "1".

The encoder 4 decodes the signals on the X line and Y line, and expresses the key press position (key address) with 8-bit data. The output of the encoder 4 is taken into the microprocessor 5, and the micro sensor 5 generates key data D as shown in FIG. The key data D is sent to the serial interface controller 7 via the serial interface controller 6 and the signal line. When the serial interface controller 7 finishes receiving the key data D, the processor 9
interrupt. When processor 9 receives the interrupt, it takes in key data D stored in a register in serial interface controller 7 into control memory 8 .

FIG. 7 is a diagram showing key states and generated signals in the conventional device. Figure 7 (al is a diagram showing the case where one character is input. When the key is pressed and released immediately, the device machine number ID
, a modifier indicating a press, and a key address are sent to the main computer 2. FIG. 7(b) is a diagram showing the case of tiebamatic input. When the key continues to be pressed, first the key data D consisting of the device number ID, a modifier indicating the press, and the key address is sent to the tree-based computer 2, and if the pressed state continues for a certain period of time, the device number ID , key data D consisting of a modifier indicating repeat and a key address is sent to the main computer 2, and thereafter, if it is pressed, the device number ID and repeat are indicated every time a predetermined repeat time elapses. Key data D consisting of a modifier and a key address is sent to the main system computer 2. The main system computer 2 is
When there is a press interrupt, the characters corresponding to the key specified by the relevant interrupt are displayed on the display screen, and similarly, when there is a repeat interrupt, the characters corresponding to the key specified by the relevant interrupt are displayed on the display screen. do.

In the case of the conventional example shown in Fig. 7, all keys are
If a key is used, the main body side will ignore repeat interrupts of keys that should not be treated as tiebermatic, which increases the overhead on the main body side.

For this reason, the keys that can be treated as tiebamatic keys are limited on the keyboard side, resulting in a drawback that the way the keyboard is used is fixed.

FIG. 8 is a diagram showing key states and generated signals in another conventional device. FIG. 8(a) is a diagram showing the operation when inputting one character. When the key is pressed, the device number ID, ON
Key data D consisting of a modifier indicating OFF and a key address is sent to the main computer 2, and when the hand is released from the key, key data D consisting of a device number ID, a modifier indicating OFF, and a key address is sent to the main computer 2. D is sent to the main system computer 2. FIG. 7(b) is a diagram showing the case of tiebamatic input. The key status and generated signals for tiebamatic input are the same as for single character input.
The only difference is that the time between the ON signal and the OFF signal is long.

In the case of the conventional example shown in Fig. 8, since the ON10FFL of the keyboard is not notified to the main body side, the start and end of the tiermatic state and the repeating of the key force in the tiermatic state are all performed on the main body side, so the load on the main body side is reduced. Because it becomes large and two interrupts occur for every key,
It has the disadvantage of increasing overhead.

[Purpose of the invention]

The present invention is based on the above considerations, and has features such as being able to provide flexibility in how the keyboard is used, reducing overhead on the main body side, and being able to freely set the repeat time interval in the tiebamatic state. The aim is to provide a keyboard control method with

[Means to achieve the purpose]

Therefore, the keyboard control method of the present invention is a keyboard control method for a data processing device comprising a display, a main body device, and a keyboard, in which the keyboard controls the pressing of keys and the start and end of the typermatic state on the main body side. The main unit is configured to display a character corresponding to the pressed key on the display when notified that a key has been pressed, and to display the character corresponding to the pressed key on the display, and to notify that the pressed key has not been pressed when the start of the Typermatic state is notified. Checks whether the currently pressed key is a tiermatic key, and if it is a tiermatic key, displays the character corresponding to the key being pressed, starts the repeat timer, and restarts the repeat timer. , is configured to display the character corresponding to the key being pressed each time the repeat timer times out, and to stop the repeat timer when the end of the typermatic state is notified. This is a characteristic feature.

[Embodiments of the invention]

FIG. 4 is a diagram showing key states and generated signals in the present invention. FIG. 4(a) is a diagram showing the case of inputting one character. When the key is pressed, key data consisting of the modifier of the device number D1 press and the key address is sent to the main system computer 2.

FIG. 4 (bl is a diagram showing the case of tiebamatic input. When a key is pressed, first, key data consisting of the device number ID, pressed modifier, and key address is sent to the main system computer 2. , when the key is held down for a predetermined period of time, key data consisting of the device number ID, IN modifier, and key address is sent to the main body computer 2, and when the key is released from the key, the device number ID, OUT Key data consisting of a modifier and a key address is sent to the main system computer 2.

FIG. 1 is a flowchart of the key interrupt processing routine on the main body side. Note that Y indicates Yes and N indicates No.

■ Check to see if the modifier indicates a press. When the result is Y, the process ``■'' is performed, and when the result is N, the process ``■'' is performed.

■ Convert data (key address) to general character code, taking into account shift status.

■ Display the characters on display 1.

■ Check whether the key specified by the key address is a typermatic key. When it is N, it is considered as the end, and when it is Y, the processing in (■) is performed.

■ Check whether the modifier indicates IN. When the result is Y, the process ``■'' is performed, and when the result is N, the process ``■'' is performed.

■ Load the previous data (previous character code) into the transmit register for the display.

■ Start the repeat timer. Note that when this timer times out, a timer interrupt occurs and the keyboard timer routine of FIG. 2 is activated. After that ■
processing is performed.

■ Check whether the modifier indicates OUT. When the result is Y, process ■ is performed.

■ Stop the repeat timer.

FIG. 2 is a flowchart of the keyboard timer routine. When the repeat timer of FIG. 1 times out, a keyboard timer routine is activated.

■ Load the previous data and display the corresponding characters on display 1.

■ Reset the repeat timer. The timer value can be changed freely by the application program.
It is also possible to set the timer value to be shorter as the key press time increases.

FIG. 3 is a flowchart showing the processing of the microprocessor on the keyboard side.

■ When a key is pressed manually in the Wait state, data is generated and transferred to the main unit.

■ Perform time monitoring.

(2) Check whether the key has been released or not, and if it is Y, return to the Wait state, and if N, perform the process (2).

■ Check whether Tibermatic has entered (that is, whether the key has been pressed for a predetermined period of time). When the result is Y, the process ``■'' is performed, and when the result is N, the process returns to the process ``■''.

■ Generates key data D consisting of the device number, IN modifier, and key address (of the key being pressed) and transfers it to the main unit.

■ Wait until the key is released.

■ Key with device number and OUT modifier
Generate data D and transfer it to the main unit.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the overhead of the main unit side device is small (which key is to be used as a tiermatic key can be freely selected depending on the application program, and It is possible to achieve remarkable effects such as being able to freely set the repeat interval in the period.

[Brief explanation of the drawings] Figure 1 is a flowchart of the key interrupt processing routine on the main body side, Figure 2 is a flowchart of the keyboard timer routine, Figure 3 is a flowchart showing the processing of the keyboard side microprocessor, and Figure 4 is a flowchart showing the processing of the keyboard side microprocessor. 5 is a diagram showing an outline of an example of a computer system, FIG. 6 is a diagram showing an example of an electric circuit on the keyboard 3 side, and FIG. 7 is a diagram showing a conventional example. FIG. 8 is a diagram showing key states and generated signals in another conventional device. ■... Display, 2... Main body calculator, 3...
・Keyboard, 4... Encoder, 5... 1-chip microprocessor, 6 and 7... Serial interface controller, 8... Control memory for main body computer, 9... Main body computer Processor, 10...
matrix.

Claims (1)

[Claims] A keyboard control method for a data processing device comprising a display, a main unit, and a keyboard,
The keyboard is configured to notify the main body of the press of a key and the start and end of the typermatic state,
The main device displays characters corresponding to the pressed key on the display when a key press is notified;
When the start of the Typamatic state is notified, it is checked whether the pressed key is a Typamatic key, and if it is a Typamatic key, the character corresponding to the pressed key is displayed. , starts the repeat timer,
Each time the repeat timer times out, the character corresponding to the key being pressed is displayed and the repeat timer is restarted, and when the end of the typermatic state is notified, the repeat timer is stopped. A keyboard control method characterized by being configured as follows.