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Revision 577, 0.8 kB
(checked in by murphpo, 18 months ago)
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Updated Alamouti model with PLB BRAM interface
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| 1 | function crcOut = calcTxCRC(thePacketBytes) |
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| 2 | |
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| 3 | |
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| 4 | CRCPolynomial = hex2dec('04c11db7'); |
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| 5 | CRC_Table = CRC_table_gen(CRCPolynomial); |
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| 6 | |
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| 7 | init_crc = 0; |
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| 8 | myData = thePacketBytes; |
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| 9 | |
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| 10 | crc_accum = init_crc; |
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| 11 | for n=1:length(myData) |
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| 12 | x = bitshift(crc_accum,-24,32); |
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| 13 | x = bitxor(x,myData(n)); |
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| 14 | x = bitand(x,hex2dec('ff')); |
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| 15 | crc_accum = bitxor(bitshift(crc_accum,8,32),CRC_Table(x+1)); |
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| 16 | crc_tracking(n) = crc_accum; |
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| 17 | end |
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| 18 | |
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| 19 | TxCRC32 = crc_accum; |
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| 20 | TxCRC32_b3 = bitand(bitshift(TxCRC32,-24,32),hex2dec('ff')); |
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| 21 | TxCRC32_b2 = bitand(bitshift(TxCRC32,-16,32),hex2dec('ff')); |
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| 22 | TxCRC32_b1 = bitand(bitshift(TxCRC32,-8,32),hex2dec('ff')); |
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| 23 | TxCRC32_b0 = bitand(TxCRC32,hex2dec('ff')); |
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| 24 | |
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| 25 | crcOut = [TxCRC32_b3 TxCRC32_b2 TxCRC32_b1 TxCRC32_b0]; |
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| 26 | |
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