Use ADC resolution in AD595/8495 calculation (#17018)

Fixes thermocouple reading on LP1768 (which uses 12-bit resolution).
5 years ago · 39c34e4992
parent b946530ef6
commit 39c34e4992
1 changed files with 2 additions and 2 deletions
--- a/Marlin/src/module/temperature.cpp
+++ b/Marlin/src/module/temperature.cpp
@ -1232,8 +1232,8 @@ void Temperature::manage_heater() {
  UNUSED(ms);
 }

-#define TEMP_AD595(RAW)  ((RAW) * 5.0 * 100.0 / 1024.0 / (OVERSAMPLENR) * (TEMP_SENSOR_AD595_GAIN) + TEMP_SENSOR_AD595_OFFSET)
-#define TEMP_AD8495(RAW) ((RAW) * 6.6 * 100.0 / 1024.0 / (OVERSAMPLENR) * (TEMP_SENSOR_AD8495_GAIN) + TEMP_SENSOR_AD8495_OFFSET)
+#define TEMP_AD595(RAW)  ((RAW) * 5.0 * 100.0 / float(HAL_ADC_RANGE) / (OVERSAMPLENR) * (TEMP_SENSOR_AD595_GAIN) + TEMP_SENSOR_AD595_OFFSET)
+#define TEMP_AD8495(RAW) ((RAW) * 6.6 * 100.0 / float(HAL_ADC_RANGE) / (OVERSAMPLENR) * (TEMP_SENSOR_AD8495_GAIN) + TEMP_SENSOR_AD8495_OFFSET)

 /**
 * Bisect search for the range of the 'raw' value, then interpolate