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Projectkk2glider/issue 3463 negative filtered sensor values (#3469) (ported from master)

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* Fixes #3463: negative sensor values were invalid if filter was active for the sensor

* Re #3463: enable simultaneous use of `offset` and `filter` (was: when `offset` was enabled, the `filter` was always inactive even if enabled)
This commit is contained in:
Damjan Adamic
2016-05-06 22:37:05 +02:00
parent e2247623a2
commit 8cd677d697
1 changed files with 6 additions and 4 deletions
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radio/src/telemetry/telemetry_sensors.cpp
+6 -4
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@@ -171,16 +171,18 @@ void TelemetryItem::setValue(const TelemetrySensor & sensor, int32_t val, uint32
}
newVal += std.offsetAuto;
}
else if (sensor.filter) {
if (sensor.filter) {
if (!isAvailable()) {
for (int i=0; i<TELEMETRY_AVERAGE_COUNT; i++) {
std.filterValues[i] = newVal;
}
}
else {
// calculate the average from values[] and value
// also shift readings in values [] array
unsigned int sum = std.filterValues[0];
// Calculate the average from values[] and value,
// also shift readings in values [] array.
// There is a possibility of value overflow in `sum` but
// in reality no sensor value should be so big to cause it.
int32_t sum = std.filterValues[0];
for (int i=0; i<TELEMETRY_AVERAGE_COUNT-1; i++) {
int32_t tmp = std.filterValues[i+1];
std.filterValues[i] = tmp;