kopia lustrzana https://github.com/f4exb/sdrangel
Reverse byte ordering of CRC in packet mode
rodzic
bdfe1a9ab3
commit
70b074e6d5
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@ -309,8 +309,8 @@ public:
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if (last_packet)
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if (last_packet)
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{
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{
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packet_assembly[25] = 0x80 | ((packet_size+2)<<2); // sent packet size includes CRC
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packet_assembly[25] = 0x80 | ((packet_size+2)<<2); // sent packet size includes CRC
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packet_assembly[packet_size] = crc_.get_bytes()[1];
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packet_assembly[packet_size] = crc_.get_bytes()[0];
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packet_assembly[packet_size+1] = crc_.get_bytes()[0];
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packet_assembly[packet_size+1] = crc_.get_bytes()[1];
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}
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}
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else
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else
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{
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{
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@ -328,7 +328,7 @@ bool M17DemodProcessor::decode_packet(modemm17::M17FrameDecoder::packet_buffer_t
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crc16(*it);
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crc16(*it);
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}
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}
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uint16_t calcChecksum = crc16.get_bytes()[0] + (crc16.get_bytes()[1]<<8);
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uint16_t calcChecksum = crc16.get_bytes()[1] + (crc16.get_bytes()[0]<<8);
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uint16_t xmitChecksum = m_currentPacket.back() + (m_currentPacket.end()[-2]<<8);
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uint16_t xmitChecksum = m_currentPacket.back() + (m_currentPacket.end()[-2]<<8);
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if (calcChecksum == xmitChecksum) // (checksum == 0x0f47)
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if (calcChecksum == xmitChecksum) // (checksum == 0x0f47)
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