MCP5643L SWG Setting

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MCP5643L SWG Setting

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jinzhuli
Contributor I

Hi,

I'm using the motor control toolbox to configure a MCP5643 eval board to generate sine wave with SWG module, but the output is not as expected: output is only about half the set value. I attached the setting and output waveform here. Can someone take a look and let me know what went wrong?

Thanks!

Photo Mar 24, 10 49 27 AM.jpg

SWG Output when set to 2.264V.jpg

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

The SWG output is on the pin D[7]. On the MPC5643L EVB this pin is connected to LED4, which causes high load for the SWG output. Disconnect the LED4 (jumper J8.4) to get full swing of the SWG output.

BR, Petr

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