Difference between revisions of "Example mcp4922 test"
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The <code>mcp4922_test</code> C example project requires an EMAC SoM-150ES carrier board. | The <code>mcp4922_test</code> C example project requires an EMAC SoM-150ES carrier board. | ||
| − | + | ===Using <code>mcp4922_test</code>=== | |
| − | + | ./mcp4922_test | |
| − | |||
| − | |||
You'll get the signal on the analog out port. Pin 15 is analog out 0 and pin 16 is analog out 1. GND is 1,2,17,18. Range is 5V. You'll need an oscilloscope and a board schematic. | You'll get the signal on the analog out port. Pin 15 is analog out 0 and pin 16 is analog out 1. GND is 1,2,17,18. Range is 5V. You'll need an oscilloscope and a board schematic. | ||
Revision as of 10:21, 31 December 2013
This is a guide to the mcp4922_test C example project included in the EMAC OE SDK.
This is an example application for accessing the EMAC interface for the on-board DtoA of the SoM-150ES. This interface uses the EMAC ioex class to provide a GPIO-like interface (see also the egpc project). This application outputs a sine wave on channel 0 and a cosine wave on channel 1.
The mcp4922_test project builds one executable: mcp4922_test.
Contents
Opening, Building and Uploading the Project Files
1. Open the C/C++ editing perspective.
stub
2. Open the project files.
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3. Build the project.
stub
4. Upload the executables to the target system.
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Usage and Behavior
mcp4922_test outputs a sine wave on channel 0 and a cosine wave on channel 1.
Hardware Requirements
The mcp4922_test C example project requires an EMAC SoM-150ES carrier board.
Using mcp4922_test
./mcp4922_test
You'll get the signal on the analog out port. Pin 15 is analog out 0 and pin 16 is analog out 1. GND is 1,2,17,18. Range is 5V. You'll need an oscilloscope and a board schematic.
