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MMDVM
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Don't scale up the sample values.

This commit is contained in:
Jonathan Naylor 2020-04-19 17:37:24 +01:00
parent f7e5c2436c
commit a17bd9cc1d
1 changed files with 1 additions and 4 deletions
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5
FMCTCSSRX.cpp
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@ -118,11 +118,8 @@ bool CFMCTCSSRX::process(const q15_t* samples, uint8_t length)
q31_t t2 = __SSAT(t1 >> 32, 31); q31_t t2 = __SSAT(t1 >> 32, 31);
q31_t t3 = t2 * 2; q31_t t3 = t2 * 2;
// Convert input data to Q31 from Q15
q31_t t4 = __SSAT(samples[i] << 16, 31);
// m_q0 = m_coeffDivTwo * m_q1 * 2 - q2 + samples[i] // m_q0 = m_coeffDivTwo * m_q1 * 2 - q2 + samples[i]
m_q0 = t3 - q2 + t4; m_q0 = t3 - q2 + samples[i];
m_count++; m_count++;
if (m_count == N) { if (m_count == N) {