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Code Issues Wiki Activity

Spectrum analyser working

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This commit is contained in:
Bertrand Songis 2019-02-07 10:58:14 +01:00
parent d01f1e8b3e
commit 2fc96cf14d
2 changed files with 17 additions and 12 deletions
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14
radio/src/telemetry/telemetry.cpp
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@ -139,11 +139,17 @@ void processSpectrumFrame(uint8_t module, uint8_t * frame)
uint32_t * frequency = (uint32_t *)&frame[4];
int8_t * power = (int8_t *)&frame[8];
// center = 2500000000
// left = 2500000000 - 5000
// span = 10000
// center = 2440000000; // 2440MHz
// span = 40000000; // 40MHz
// left = 2440000000 - 20000000
// step = 10000
// reusableBuffer.spectrum.bars[(*frequency - (2500000000 - 5000)) * 128 / 10000] = 127 + *power;
int32_t D = *frequency - (2440000000 - 40000000 / 2);
// TRACE("Fq=%u, Pw=%d, X=%d, Y=%d", *frequency, int32_t(*power), D * 128 / 40000000, int32_t(127 + *power));
uint8_t x = D * 128 / 40000000;
reusableBuffer.spectrum.bars[x] = 127 + *power;
}
void processRadioFrame(uint8_t module, uint8_t * frame)