getCalibrationTrim()

Function returns the value of the MCP7940's trim buffer. This is a software fine-tuning adjustment to the oscillator cycle calculations and ranges from -127 to 127. Each unit represent 2 clock cycles added or subtracted per minute. The MCP7940 datasheet describes the computations used on page 28.

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Example:

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MCP7940_Class MCP7940; // Create an instance of the MCP7940
...
  Serial.print("Trim value is ");
  Serial.print(MCP7940.getCalibrationTrim()*2);
  Serial.println(" cycles per minute.");
...