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latticeBitParser: extract FPGA idcode from configuration data

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This commit is contained in:
Gwenhael Goavec-Merou
2021-11-20 17:01:13 +01:00
parent 1637d6f484
commit ab43af7f0e
1 changed files with 14 additions and 0 deletions
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src/latticeBitParser.cpp
+14
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@@ -92,5 +92,19 @@ int LatticeBitParser::parse()
std::move(_raw_data.begin()+_endHeader, _raw_data.end(), _bit_data.begin());
_bit_length = _bit_data.size() * 8;
/* extract idcode from configuration data (area starting with 0xE2) */
for (int i = 0; i < _bit_data.size();i++) {
if ((uint8_t)_bit_data[i] != 0xe2)
continue;
/* E2: verif id */
uint32_t idcode = (((uint32_t)_bit_data[i+4]) << 24) |
(((uint32_t)_bit_data[i+5]) << 16) |
(((uint32_t)_bit_data[i+6]) << 8) |
(((uint32_t)_bit_data[i+7]) << 0);
_hdr["idcode"] = string(8, ' ');
snprintf(&_hdr["idcode"][0], 9, "%08x", idcode);
break;
}
return 0;
}