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In recent years, with its rapid growth as strong vitality, single-chiped micro computer has been widely used included but no limited in industrial control, smart instrumentation, intelligent equipment and household appliances, which causes great concern to all walks of life, which has broad prospects for development.
The design descrided in this thesis is a microprocessor controlled multi-function signal generator. It is aimed at enhancing students' capacity of design on a expansion of SCM and their practical application ability via practice courses.
The software of this system can run on DOS and family of Windows Operating Systems Platform.
The achievement of main functions:
Microprocessor voltage required for smooth access,
8 K bytes curing process storage capacity,
Seven sections of digital display,
3 × 4 of 12-bit Matrix keyboard,
Waveform generator and voltage transformation functions,
D / A converter functions with 8-bit Accuracy,
The clock circuit and reset circuit,
Other related software design.
The system is a microprocessor controlled multi-function signal generator, set SCM 8031 as the core, configuring the appropriate external interface circuit, developed by assembly language.
Hardware circuit includes three parts:
1, The design of power;
2, The system expansion, which is Off-chip expansion that must be performed to select an suitable chips and design an appropriate circuit while a capacity of the function of internal microcontroller units (such as ROM， I / O， timing / counter， interrupt system， etc.) can not meet the application requirements;
3, The system configuration. It's to allocate peripherals such as keyboards, D/A converter, ect. in accordance with the functional requirements.
The software in this system is designed according to the function of the system requirements to reliably achieve various functional requirements.
In recent years, with its rapid growth as strong vitality, single-chiped micro computer has been widely used included but no limited in industrial control, smart instrumentation, intelligent equipment and household appliances, which causes great concern to all walks of life, which has broad prospects for development.
The design descrided in this thesis is a microprocessor controlled multi-function signal generator. It is aimed at enhancing students' capacity of design on a expansion of SCM and their practical application ability via practice courses.
The software of this system can run on DOS and family of Windows Operating Systems Platform.
The achievement of main functions:
Microprocessor voltage required for smooth access,
8 K bytes curing process storage capacity,
Seven sections of digital display,
3 × 4 of 12-bit Matrix keyboard,
Waveform generator and voltage transformation functions,
D / A converter functions with 8-bit Accuracy,
The clock circuit and reset circuit,
Other related software design.
The system is a microprocessor controlled multi-function signal generator, set SCM 8031 as the core, configuring the appropriate external interface circuit, developed by assembly language.
Hardware circuit includes three parts:
1, The design of power;
2, The system expansion, which is Off-chip expansion that must be performed to select an suitable chips and design an appropriate circuit while a capacity of the function of internal microcontroller units (such as ROM， I / O， timing / counter， interrupt system， etc.) can not meet the application requirements;
3, The system configuration. It's to allocate peripherals such as keyboards, D/A converter, ect. in accordance with the functional requirements.
The software in this system is designed according to the function of the system requirements to reliably achieve various functional requirements.
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