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Document SAMD_AnalogCorrection library's 12 bit resolution requirement #620

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Oct 20, 2021
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Document SAMD_AnalogCorrection library's 12 bit resolution requirement #620

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7 changes: 4 additions & 3 deletions libraries/SAMD_AnalogCorrection/examples/CorrectADCResponse/CorrectADCResponse.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@
6) Open the Serial Monitor and press the reset button on the Arduino ZERO
7) At the and of the procedure you can find logged
- the offset and gain values for the board where the sketch has been just executed
- the instruction line to copy/paste in the final sketch
- the code to copy/paste in sketches using this library
*/

#include "SAMD_AnalogCorrection.h"
Expand All @@ -32,7 +32,7 @@
#define ADC_MIN_GAIN 0x0400
#define ADC_UNITY_GAIN 0x0800
#define ADC_MAX_GAIN (0x1000 - 1)
#define ADC_RESOLUTION_BITS 12
#define ADC_RESOLUTION_BITS 12 // do not change. This library only supports 12 bit resolution.
#define ADC_RANGE (1 << ADC_RESOLUTION_BITS)
#define ADC_TOP_VALUE (ADC_RANGE - 1)

Expand Down Expand Up @@ -162,7 +162,8 @@ void setup()
Serial.println(offsetCorrectionValue);
Serial.print(" Gain = ");
Serial.println(gainCorrectionValue);
Serial.println("\r\nAdd the next line to your sketch:");
Serial.println("\r\nAdd the next lines to your sketch:");
Serial.println(" analogReadResolution(12);");
Serial.print(" analogReadCorrection(");
Serial.print(offsetCorrectionValue);
Serial.print(", ");
Expand Down