#42 fan control

src/eez/index.cpp

@@ -945,6 +945,10 @@ bool Module::isAmperAllowed(int subchannelIndex) {
 	return false;
 }
 
+float Module::getMaxTemperature() {
+    return 25.0f;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 
 struct NoneModule : public Module {

src/eez/index.h

@@ -449,6 +449,8 @@ struct Module {
 
 	virtual bool isMicroAmperAllowed(int subchannelIndex);
 	virtual bool isAmperAllowed(int subchannelIndex);
+
+    virtual float getMaxTemperature();
 };
 
 static const int NUM_SLOTS = 3;

src/eez/modules/dib-mio168/dib-mio168.cpp

@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <memory.h>
+#include <float.h>
 
 #if defined(EEZ_PLATFORM_STM32)
 #include <spi.h>
@@ -4744,6 +4745,21 @@ struct Mio168Module : public Module {
 		}
 		return Module::isMicroAmperAllowed(subchannelIndex);
 	}
+
+    float getMaxTemperature() {
+        if (afeVersion != 4) {
+            float maxCurrent = FLT_MIN;
+            for (int i = 0; i < 4; i++) {
+                if (ainChannels[i].getMode() == MEASURE_MODE_CURRENT) {
+                    maxCurrent = MAX(maxCurrent, ainChannels[i].getValue());
+                }
+            }
+
+            return clamp(remap(maxCurrent, 5.0f, FAN_MIN_TEMP, 8.0f, FAN_MAX_TEMP), 25.0f, FAN_MAX_TEMP);
+        }
+
+        return Module::getMaxTemperature();
+    }
 };
 
 ////////////////////////////////////////////////////////////////////////////////

src/eez/modules/psu/temperature.cpp

@@ -84,6 +84,10 @@ void tick() {
             }
         }
 
+        for (int i = 0; i < NUM_SLOTS; ++i) {
+            maxChannelTemperature = MAX(maxChannelTemperature, g_slots[i]->getMaxTemperature());
+        }
+
         // check if max_channel_temperature is too high
         if (isPowerUp() && maxChannelTemperature > FAN_MAX_TEMP) {
             if (g_lastMaxChannelTemperature <= FAN_MAX_TEMP) {