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Fix crash in DMR DMO Mode 

Modem was crashing on Teensy when running in DMO mode. Crashed as soon as Tx started. Traced to exceeding the bounds of m_poBuffer during the txdelay phase.
 m_poBuffer was dimensioned to 80 but m_txdelay could be 600 to 1200 so a massive overwrite was happening.
Surprisingly this didn't crash on the Due only on the Teensy.
This commit is contained in:
g4eml 2017-01-01 14:22:49 +00:00 committed by GitHub
parent a05eaee855
commit 9f47e67630
1 changed files with 1 additions and 1 deletions
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2
DMRDMOTX.h
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@ -41,7 +41,7 @@ private:
CSerialRB m_fifo; CSerialRB m_fifo;
arm_fir_instance_q15 m_modFilter; arm_fir_instance_q15 m_modFilter;
q15_t m_modState[70U]; // NoTaps + BlockSize - 1, 42 + 20 - 1 plus some spare q15_t m_modState[70U]; // NoTaps + BlockSize - 1, 42 + 20 - 1 plus some spare
uint8_t m_poBuffer[80U]; uint8_t m_poBuffer[1200U];
uint16_t m_poLen; uint16_t m_poLen;
uint16_t m_poPtr; uint16_t m_poPtr;
uint16_t m_txDelay; uint16_t m_txDelay;