Lincoln Timer Frequency Measure Example
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==Compatibility [http://www.micromint.com/index.php/SBC/lincoln60.html Lincoln 60], [http://www.micromint.com/index.php/SBC/lincoln60.html Lincoln 60E]== | ==Compatibility [http://www.micromint.com/index.php/SBC/lincoln60.html Lincoln 60], [http://www.micromint.com/index.php/SBC/lincoln60.html Lincoln 60E]== | ||
| - | This example demonstrates how to use a timer to measure a signal's frequency. | + | This example demonstrates how to use a timer to measure a signal's frequency. A test signal is generated by P0.6 (J2 pin 5) for P1.26 (J2 pin 17) to measure. |
Please follow these steps to run the timer_capture example: | Please follow these steps to run the timer_capture example: | ||
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* 1. Compile the timer_capture example. | * 1. Compile the timer_capture example. | ||
* 2. Program the Lincoln with the binary. | * 2. Program the Lincoln with the binary. | ||
| - | * 3. Connect | + | * 3. Connect J2 pin 5 (P0.6) and J2 pin 17 (P1.26). |
* 4. Press the "RESET" button. | * 4. Press the "RESET" button. | ||
| - | * 5. | + | * 5. Enter a frequency to measure between 1 and 999 hertz. |
| - | The first UART, which is connected to the COM1 on the Lincoln microcontroller board, is configured for 115,200 bits per second, and 8-n-1 mode. When the program is started a message will be printed to the terminal. The following screen shot is of the | + | The first UART, which is connected to the COM1 on the Lincoln microcontroller board, is configured for 115,200 bits per second, and 8-n-1 mode. When the program is started a message will be printed to the terminal. The following screen shot is of the timer_freqmeasure example in action. |
[[Image:Lincoln_timer_freqmeasure.png|center|]] | [[Image:Lincoln_timer_freqmeasure.png|center|]] | ||
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| + | The below signal was captured from P0.6 (J2 pin 5) after entering 500 for the frequency. | ||
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| + | [[Image:Lincoln_timer_freqmeasure2.png|center|]] | ||
Current revision as of 20:14, 11 April 2012
Compatibility Lincoln 60, Lincoln 60E
This example demonstrates how to use a timer to measure a signal's frequency. A test signal is generated by P0.6 (J2 pin 5) for P1.26 (J2 pin 17) to measure.
Please follow these steps to run the timer_capture example:
- 1. Compile the timer_capture example.
- 2. Program the Lincoln with the binary.
- 3. Connect J2 pin 5 (P0.6) and J2 pin 17 (P1.26).
- 4. Press the "RESET" button.
- 5. Enter a frequency to measure between 1 and 999 hertz.
The first UART, which is connected to the COM1 on the Lincoln microcontroller board, is configured for 115,200 bits per second, and 8-n-1 mode. When the program is started a message will be printed to the terminal. The following screen shot is of the timer_freqmeasure example in action.
The below signal was captured from P0.6 (J2 pin 5) after entering 500 for the frequency.
