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对8位微控制器SAB C513的异步串行接口进行仿真的例行程
消耗积分:5 |
格式:rar |
大小:100 |
2009-06-30
贾飞世
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The C500 microcontroller family usually provides only one on-chip asynchronous serialcommunication channel (USART). If a second USART is required, an emulation of themissing interface may help to avoid an external hardware solution with additional electronic components.
1 Introduction 3
2 General Operation and Hardware Environment. 4
2.1 Supported Features. 4
2.2 Required Resources 5
2.3 External Routing 6
2.4 Principles of Emulation 7
2.4.1 USART Write 7
2.4.2 USART READ 8
3 USART Emulation Software Description 9
3.1 Software Structure 9
3.2 Main Program 10
3.3 Emulation Subroutines 12
3.4 Baud Rate Calculation 13
3.5 Load Measurement 15
3.6 Performance Limitations 16
3.7 Make File 17
3.8 Support of KitCON-513 Evaluation Board 18
1 Introduction 3
2 General Operation and Hardware Environment. 4
2.1 Supported Features. 4
2.2 Required Resources 5
2.3 External Routing 6
2.4 Principles of Emulation 7
2.4.1 USART Write 7
2.4.2 USART READ 8
3 USART Emulation Software Description 9
3.1 Software Structure 9
3.2 Main Program 10
3.3 Emulation Subroutines 12
3.4 Baud Rate Calculation 13
3.5 Load Measurement 15
3.6 Performance Limitations 16
3.7 Make File 17
3.8 Support of KitCON-513 Evaluation Board 18
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