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Merge pull request #727 from drf5n/oversampling

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temperature.cpp: Actually use OVERSAMPLENR in the oversampling calculation.
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ErikZalm 2014-01-31 07:09:10 -08:00
commit 0d81ae77bc
2 changed files with 2 additions and 2 deletions
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2
Marlin/Configuration.h
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@ -168,7 +168,7 @@
// is more then PID_FUNCTIONAL_RANGE then the PID will be shut off and the heater will be set to min/max.
#define PID_INTEGRAL_DRIVE_MAX 255 //limit for the integral term
#define K1 0.95 //smoothing factor within the PID
#define PID_dT ((16.0 * 8.0)/(F_CPU / 64.0 / 256.0)) //sampling period of the temperature routine
#define PID_dT ((OVERSAMPLENR * 8.0)/(F_CPU / 64.0 / 256.0)) //sampling period of the temperature routine
// If you are using a preconfigured hotend then you can use one of the value sets by uncommenting it
// Ultimaker

2
Marlin/temperature.cpp
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@ -1190,7 +1190,7 @@ ISR(TIMER0_COMPB_vect)
// break;
}
if(temp_count >= 16) // 8 ms * 16 = 128ms.
if(temp_count >= OVERSAMPLENR) // 8 * 16 * 1/(16000000/64/256) = 131ms.
{
if (!temp_meas_ready) //Only update the raw values if they have been read. Else we could be updating them during reading.
{