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1.1 About This Document .... 11.2 Related Documents. 12 Sample Program Overview....22.1 Sample Programs Included . 22.2 Operating Environment.. 32.3 File Components 33 Sample Programs Specifications..43.1 Shared Specifications.... 43.1.1 LED Patterns . 43.1.2 Configuring Clock Gear . 53.2 IRQ Interrupt Requests.. 63.2.1 IRQ Handlers 63.2.2 Handlers for Individual Interrupt Sources ... 73.2.3 IRQ Handler Table ... 83.3 Initializing Microcontroller .... 93.3.1 Modules Used 93.3.2 Operational Description.. 93.3.3 Flowchart 93.4 External Memory Controller (SRAM and ROM) 103.4.1 Modules Used... 103.4.2 Operational Description 103.4.3 Flowcharts ... 113.5 External Memory Controller (DRAM) .... 123.5.1 Modules Used... 123.5.2 Operational Description 123.5.3 Flowcharts ... 143.6 IRQ Exception Handler (Without Nesting) and System Timer .. 153.6.1 Modules Used... 153.6.2 Operational Description 153.6.3 Flowcharts ... 163.7 IRQ Exception Handler (With Nesting) . 173.7.1 Modules Used... 173.7.2 Operational Description 173.7.3 Flowchart.... 193.8 Asynchronous Serial Interface (SIO) .... 203.8.1 Modules Used... 20ML674000 CPU Board Sample Programs User’s Manualii3.8.2 Operational Description 203.8.3 Configuring Serial Interface .... 203.8.4 Flowcharts ... 213.8.5 Specifying Reload Value in SIOBT..... 243.9 Buffered Asynchronous Serial Interface (UART)..... 253.9.1 Modules Used... 253.9.2 Operational Description 253.9.3 Configuring Serial Interface .... 253.9.4 Flowcharts ... 263.9.5 Calculating Frequency Divider 293.10 I/O Ports..... 303.10.1 Modules Used... 303.10.2 Operational Description 303.10.3 Flowchart.... 313.11 Memory Remapping .... 323.11.1 Modules Used... 323.11.2 Operational Description 323.11.3 Flowcharts ... 333.12 Power Management .... 343.12.1 Modules Used... 343.12.2 Operational Description 343.12.2.1 RUN State...353.12.2.2 HALT State.363.12.2.3 STANDBY State.....363.12.3 Configuring Serial Interface .... 363.12.4 Flowchart.... 373.13 Auto Reload Timers..... 383.13.1 Modules Used... 383.13.2 Operational Description 383.13.3 Flowcharts ... 393.14 Watchdog Timer (WDT)..... 403.14.1 Modules Used... 403.14.2 Operational Description 403.14.3 Flowcharts ... 413.15 PWM Generator .... 423.15.1 Modules Used... 423.15.2 Operational Description 423.15.3 Flowcharts ... 443.16 Direct Memory Access Controller (DMAC).. 453.16.1 Modules Used... 453.16.2 Operational Description 453.16.3 Flowcharts ... 483.17 Analog-to-Digital Converter ..... 503.17.1 Modules Used... 503.17.2 Operational Description 503.17.3 Flowcharts ... 513.17.4 Checking Conversion Results.. 524 Running Sample Programs .534.1 Execution Procedure ... 534.1.1 Configuring ML674000 CPU Board ... 534.1.2 Connecting Serial Cable and Configuring Terminal Software . 534.1.3 Connecting Constant-Voltage Power Supply..... 544.1.4 Copying Files ... 544.1.5 Loading APM and Opening Project File ... 554.1.6 Configuring APM... 564.1.7 Creating Executable Image File .... 574.1.8 Loading ARM Debugger for Windows ..... 584.1.9 Configuring ARM Debugger for Windows . 604.2 Running Sample Program . 624.3 Execution Results.. 634.3.1 External Memory Controller (SRAM and ROM)... 634.3.2 External Memory Controller (DRAM) 634.3.3 System Timer.... 644.3.4 Asynchronous Serial Interface (SIO) .. 654.3.5 Buffered Asynchronous Serial Interface (UART) .. 664.3.6 I/O Ports ..... 674.3.7 Memory Remapping..... 684.3.8 Power Management 704.3.9 Auto Reload Timers ..... 714.3.10 Watchdog Timer (WDT)..... 724.3.11 PWM Generator ..... 724.3.12 Direct Memory Access Controller (DMAC) ..... 734.3.13 Analog-to-Digital Converter ... 754.4 Terminating Sample Programs 77
