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Overflow fixed

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This commit is contained in:
Bertrand Songis
2019-04-15 13:14:16 +02:00
parent 5f1152166d
commit e7143c113d
1 changed files with 2 additions and 2 deletions
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radio/src/telemetry/frsky_pxx2.cpp
+2 -2
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@@ -187,8 +187,8 @@ void processSpectrumAnalyserFrame(uint8_t module, uint8_t * frame)
// TRACE("Fq=%u, Pw=%d, X=%d, Y=%d", *frequency, int32_t(*power), D * 128 / 40000000, int32_t(127 + *power));
int32_t position = *frequency - reusableBuffer.spectrumAnalyser.freq + (reusableBuffer.spectrumAnalyser.span / 2);
unsigned x = (position * LCD_W) / reusableBuffer.spectrumAnalyser.span;
int32_t position = *frequency - (reusableBuffer.spectrumAnalyser.freq - reusableBuffer.spectrumAnalyser.span / 2);
int32_t x = (position * LCD_W / 8) / (reusableBuffer.spectrumAnalyser.span / 8);
if (x < LCD_W) {
reusableBuffer.spectrumAnalyser.bars[x] = 127 + *power;
}