Mirror/betaflight
1
0
Fork 0
mirror of https://github.com/betaflight/betaflight.git synced 2025-07-25 17:25:20 +03:00
Code Issues Wiki Activity

Prevent bad data being used during early system startup.

Browse source
This commit is contained in:
Dominic Clifton 2014-06-23 22:08:29 +01:00
parent e30a373c92
commit 2413130c0f
2 changed files with 31 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/main/rx/rx.c
View file

@ -202,11 +202,21 @@ uint16_t calculateNonDataDrivenChannel(uint8_t chan, uint16_t sample)
{
static int16_t rcSamples[MAX_SUPPORTED_RX_PARALLEL_PWM_OR_PPM_CHANNEL_COUNT][PPM_AND_PWM_SAMPLE_COUNT];
static int16_t rcDataMean[MAX_SUPPORTED_RX_PARALLEL_PWM_OR_PPM_CHANNEL_COUNT];
static bool rxSamplesCollected = false;
uint8_t currentSampleIndex = rcSampleIndex % PPM_AND_PWM_SAMPLE_COUNT;
// update the recent samples and compute the average of them
rcSamples[chan][currentSampleIndex] = sample;
// avoid returning an incorrect average which would otherwise occur before enough samples
if (!rxSamplesCollected) {
if (rcSampleIndex < PPM_AND_PWM_SAMPLE_COUNT) {
return sample;
}
rxSamplesCollected = true;
}
rcDataMean[chan] = 0;
uint8_t sampleIndex;