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Unformatted text preview: power and ground taken care of with independent power supply, now you can then the power switch on to have ARM board booted. At this moment, you should see your board LED flashing to indicate your “Hello, the world” is working. When you are compiling your “hello, the world” program, pay attention to the C code as shown in Figure 3. Figure 3. C program for “hello, the world”. Based on the program, perform the following changes and answer the questions accordingly: 1. Which line defines LED selection, how do change your LED1 to LED 2? 2. For how long LED is on? How to change it 100 mS? How to change it to 2.5 uS? 3. For how long LED is off? How to change it to 50 mS? (END)...
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- Fall '08
- English-language films, power supply, Jocelyn Brown, Pin Assignment