KR970059873A - Option processing method using A / D port - Google Patents
Option processing method using A / D port Download PDFInfo
- Publication number
- KR970059873A KR970059873A KR1019960002149A KR19960002149A KR970059873A KR 970059873 A KR970059873 A KR 970059873A KR 1019960002149 A KR1019960002149 A KR 1019960002149A KR 19960002149 A KR19960002149 A KR 19960002149A KR 970059873 A KR970059873 A KR 970059873A
- Authority
- KR
- South Korea
- Prior art keywords
- option
- port
- processing method
- value
- input
- Prior art date
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- Microcomputers (AREA)
Abstract
본 발명은 옵션처리방법에 관한 것으로, 종래에는 옵션 수가 많아질수록 마이컴이 소비해야 하는 포트수가 많아지고, 그 옵션선택 회로가 많아지는 단점이 있었다. 본 발명은 이를 감안하여 옵션에 따라 저항치를 달리주어 옵션을 선택할 수 있는 옵션선택수단을 구비하고, 그 옵션선택수단의 저항값에 따른 출력전압을 A/D포트로 입력받아 입력값을 판단하는 단계와, 그 입력값과 미리 정해 둔 옵션별 기준값을 단계적으로 비교하는 단계와, 입력값이 해당되는 기준값에 따른 옵션기능을 세팅하여 해당옵션의 기능으로 운전제어 하도록 하는 옵션세팅단계를 수행하도록 이루어진 A/D포트를 이용한 옵션처리방법을 제공함으로써, 마이컴의 포트수를 줄이고, 옵션선택을 위한 부가회로를 줄일 수 있어서, 원가 절갑 및 불량율 감소 등의 효과가 있게 된다.The present invention relates to an option processing method, and conventionally, as the number of options increases, the number of ports that the microcomputer has to consume increases and the number of option selection circuits increases. The present invention has an option selecting means for selecting an option by changing the resistance value according to the option in consideration of this, and the output voltage according to the resistance value of the option selecting means is input to the A / D port and the input value is judged A step of comparing the input value with a preset reference value for each option and performing an option setting step of setting an option function according to the reference value corresponding to the input value and controlling the operation with the function of the option, By providing an option processing method using the / D port, it is possible to reduce the number of ports of the microcomputer and to reduce the additional circuit for selecting an option, thereby reducing costs and reducing the defect rate.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제 2도는 본 발명의 따른 옵션 선택 회로도,FIG. 2 is an option selection circuit diagram according to the present invention;
제 3도는 본 발명의 의한 A/D포트를 이용한 옵션처리 제어흐름도.FIG. 3 is a flow chart of an option process control using an A / D port according to the present invention; FIG.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960002149A KR970059873A (en) | 1996-01-30 | 1996-01-30 | Option processing method using A / D port |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960002149A KR970059873A (en) | 1996-01-30 | 1996-01-30 | Option processing method using A / D port |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970059873A true KR970059873A (en) | 1997-08-12 |
Family
ID=66219135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960002149A KR970059873A (en) | 1996-01-30 | 1996-01-30 | Option processing method using A / D port |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970059873A (en) |
-
1996
- 1996-01-30 KR KR1019960002149A patent/KR970059873A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
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WITN | Withdrawal due to no request for examination |