JPS6191748A - Electronic equipment - Google Patents

Abstract

PURPOSE:To know a deficiency in memory capacity before processing starts by holding the contents of a memory even when the power source is off and displaying the storage state of the memory on a display means when the power source is turned on. CONSTITUTION:When an operator selects a program mode in the beginning with a mode changeover switch 6, an application program (AP) is loaded. Then, the operator turns on the operating power source of a processor 1 and then the IPL of electric equipment 1 is executed according to information stored in a ROM3. When the battery voltage is normal, the AP load mode is displayed on the display means 10. Then, the storage capacity of the memory is checked in step m5 and when the memory is not full and there are data left, a step m6 is entered and the storage capacity is displayed on the display means 10.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a device which is compact and portable, for example, is battery-driven, stores contents inputted by an input means, and stores the stored contents. Electronic 8! that can be advantageously implemented such as outputting to a host computer!
Concerning vessels.

Background Art A terminal device that is communicably connected to a host device, which is a processing device, transfers input information to the host device, receives information output from the host device, etc. When using the system, the operator needs to know in advance the storage capacity of the memory in which the processed data will be stored before performing various data processing.

If the storage capacity of the memory is insufficient, each company will not be able to process information.

Summary of the Problems to be Solved by the Invention The purpose of the present invention is to provide an electronic system that can mechanically recognize the storage capacity of a memory in which processed data is stored, without the need for special operations, prior to various types of information processing. It is to provide equipment.

Means for Solving the Problem ζ The present invention includes an input means, a memory, and processes an input signal from the input means and stores the processing results etc. in the memory.
A processing circuit that derives the stored contents of the memory to the outside, and an r! The display means for displaying the mu described in j is punished, and the memory retains its stored contents even when the 7Fi source of the processing circuit is cut off. r, and while the power is turned on,
The electronic device is characterized in that the storage status of the memory is displayed on the display means.

According to the present invention, an input means, a memory, a processing circuit that processes an input signal from the input means, stores the processing result etc. in the memory, and transmits the stored contents of the memory to the outside, A display means for displaying information related to the circuit is provided, and the memory is configured to retain stored contents even when the N source of the processing circuit is disconnected, and when the power is turned on, the storage status of the memory is displayed on the display means. Since the information is displayed, the storage capacity of the memory in which processed data is stored can be confirmed prior to various information processing without requiring any special operations.

Embodiment FIG. 1 is a block diagram showing the configuration of an electronic device 1 of the present invention. The electronic device 1 is relatively small and is connected, for example, to a large processing device serving as a host via a telephone line, and is used as a terminal for inputting data. The Ml child device 1 includes a ROM (read only memory) 3 and an R
AM (rangum access memory) 4 is provided.

ROM3 contains an IPL (IPL) that performs initial settings before information processing.
Information necessary for initial program loading) is stored. The RAM 4 is a state-of-the-art access memory, and its stored contents are retained even if the power is disconnected. Further, the RAM 4 may be a Guinami Clan RAM access memory, and has a structure such that the stored contents are retained even if the power is cut off. The RAM 4 in which information such as input/output data and application programs is stored in the electronic device 1 includes an area 4a in which input/output data is stored, an area 4b in which application programs are stored, and conditions related to the application programs. Stored territory wj, 4
It has c.

The CPU 2 includes a key manual means 5 and a mode changeover switch 6.
, Light Ben 7, Serial data interface 7 Ace 8,
A parallel data interface 9, a display means 10, a printer 11, and a data transmission ink 7/8/12 are connected, respectively. The data processed by the CPL 12 is input via a key human power means 5 and a light bench 7 provided as an option for inputting information such as a bar code printed on a product label by optical means. is connected to the input/output device 10 via an interface 7 for serial data 8 and an interface 7 for parallel data 9 to other processing devices connected via an interface 12 for data transmission. input and output. Information input and output to the processing device 1 is visually displayed by the display means 10 and printed by the printer 10. The mode selector switch 6 is provided for the operator to select how the electronic device 1 operates.

- It is. First of all, the operator first presses the mode selector switch 6.
When program load is selected, the application Progera A is loaded according to the arrow 70-. When the operator turns on the operating power of the processing device 1121, the IPL of the electronic device 1 is performed in accordance with the information stored in the ROM 3 in step n1. In step n2, it is determined whether or not the voltage of the battery, which is the power source, has decreased. If it has decreased, a display to that effect is displayed in step n3. In step n4, the power is turned off. Batch LJ? lI
If T is normal, the process moves to step n5 and the display means 10 displays that it is the application program load mode. In step 16, it is determined whether or not a key-in has been performed in the LOAD '1' row, and if a predetermined time has elapsed without a key-in, the power is turned off. When Lord Jitsusha's key-in was made,
In step n7, the application program is
When the program loading to the area 4b of A M 4 is completed normally, according to the present invention, a checksum hood indicating the contents of the program is set,
The code is stored in, for example, area 4c of the RAM. In step n8, it is determined whether the program loading has ended normally, and if it has ended normally, step n9
At step nlO, a message indicating that the program loading has been completed is displayed on the display means 10, and if the program load is not completed normally, a program load error is displayed on the display means 1o at step nlO. step nil
When the power is turned off, the loading operation of the application program into the RAM 4 is completed.

Next, when the operator selects the condition setting of the application program using the mode changeover switch 6 and turns on the power, the operation is performed according to the flow shown by arrow B. First, steps 01 and 02 are executed, and if the battery voltage is normal, the process moves to step n12. step n
At step 12, it is determined whether the application program exists in the RAM 4 or not. If the program does not exist, the display means 10 displays a helmet for which no program exists in step n13, and in step n14? !
t The head is turned off. If the program exists, the process moves to step n]5 where a sum check is performed to inspect the contents of the program, and it is determined in step n16 whether or not it matches the sum check code set in step n7. n16
If the sum check codes match, it is assumed that the contents of the program have not changed and are the same as the contents when loaded. If the sum check codes do not match, the process moves to step n17, where a sum check error is displayed on the display means 10, and the power is turned off at step n1B. If the sum check food matches, step n1
9, a monitoring program routine for monitoring the execution process of the processing program and the operating state of the entire processing device 1 is executed. Application programs are executed as tasks under the supervision of a monitoring program. In step n20, the execution mode selected by the mode changeover switch 6 is determined, and since it is the program condition setting mode, the process moves to step n21.

At the input step n21, the operator inputs the program execution conditions using a key, and the conditions are set.

Once the program execution conditions are set, step n22
Then, a checksum code indicating the contents of the execution conditions of the program is set, and the code is stored in the RAM 4, for example, in the area 4c.

When the setting of the application program execution conditions is completed, the process moves to step n23 and TLM7. It is considered off.

Next, when the operator selects execution of the application program using the mode selector switch 6 and turns on the power,
Actions are performed according to 70-, indicated by arrow C. Steps n1-n2 are executed first, and if the battery voltage is normal, steps n12-n19 are executed as described above. At this time, in step n15, a sum check is performed to check the existence of the program, and a sum check of the Otake condition of the program is performed.
"/ 6 '+ 7. It is determined whether the M-V matches or is the cup. If the two checksums match, step n19 is executed and the process moves to step n20.

Since it is the program execution mode, step n24
Then the program can be executed. Then step n22. n23 is performed in r as described above.

FIG. 3 is a 70-chart for explaining the operation of checking the storage capacity of data stored in the mounting 4a of the RAM 4 according to the present invention. When the application program execution mode is entered, step ff, RA
It is determined whether or not to clear the data stored in the mounting 4a of M4. If it is not cleared, step a+
If the memory is cleared, the process moves to step m2 and the memory is cleared. In step m3, it is determined whether the application program execution conditions are set. If the major condition has been set, the process moves to step m5, and if the execution condition has not been set, the process moves to step m4, where the application program execution condition is set. In step m5, the storage capacity of the memory is checked. If the memory is not full and data remains, the process moves to step m6 and the memory capacity is displayed. In step m7, it is determined whether the data has been read or not. If the data is not output at the same time, the process moves to step m13, and if the output is at the same time,
The process moves to step m8, and a decision is made as to whether or not to clear the memory.If the memory is cleared, the process moves to step m9, where the memory clear is executed.

If you do not want to clear the memory, proceed to step 11.

Step! When the memory is cleared in step 19, the process moves to step 10. If the memory has been cleared in step m5, the process moves to step m10 and memory clear is displayed. In step-11, it is determined whether data is initially recorded in the memory. If the data is not initially registered, the process moves to step 11113, and when it is registered, the process moves to step m12, where the data @M
u it is performed. In step m13, the next processing task is selected. If the memory is full in step ra5, the process moves to step 1114, where it is displayed that the memory is full.

In step 15, data output processing is performed.

Moving to step 1116, it is determined whether or not to clear the memory. When the memory is not cleared, the process moves to step 7, and when the memory is cleared, the process moves to step ω17, where the memory is cleared. Once the memory is cleared, the process moves to step W10.

Effects As described above, according to the present invention, it is possible to check the storage capacity of a memory in which processing data is recorded, without requiring any special operations, prior to various information processing.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an electronic device 1 of the present invention,
! Figure ll'52 is a flowchart showing the operation of the electronic device 1, and Figure 3 is a chart 70 for explaining the operation of checking the storage capacity of data recorded in the area 4a of the RAM 4 according to the present invention. 1... Electronic storage device, 2... Centful processing unit, 3... Read only memory, 4... Random access memory

Claims (1)

[Scope of Claims] An input means, a memory, a processing circuit that processes an input signal from the input means, stores the processing results in the memory, and derives the contents stored in the memory to the outside, and a processing circuit related to the processing circuit. the memory is configured to retain stored contents even when the power to the processing circuit is turned off, and when the power is turned on, the storage status of the memory is displayed on the display means. and electronic equipment.