EPICS_driver_modules/StreamDevice
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Merge branch 'master' of github.com:paulscherrerinstitute/StreamDevice

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zimoch
2019-11-27 16:50:36 +01:00
parent 277635c65f 4180bbbdd9
commit afe8cc9a3e
1 changed files with 18 additions and 0 deletions
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18
src/ChecksumConverter.cc Normal file → Executable file
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@ -504,6 +504,18 @@ static uint32_t leybold(const uint8_t* data, size_t len, uint32_t sum)
return sum;
}
// Checksum used by Brooks Cryopumps
static uint32_t brksCryo(const uint8_t* data, size_t len, uint32_t sum)
{
uint32_t xsum;
while (len--) {
sum += (*data++) & 0x7F;
}
xsum = (((sum >> 6) ^ sum) & 0x3F) + 0x30;
return xsum;
}
struct checksum
{
const char* name;
@ -521,8 +533,13 @@ static checksum checksumMap[] =
{"sum8", sum, 0x00, 0x00, 1}, // 0xDD
{"sum16", sum, 0x0000, 0x0000, 2}, // 0x01DD
{"sum32", sum, 0x00000000, 0x00000000, 4}, // 0x000001DD
{"nsum8", sum, 0xFF, 0xFF, 1}, // 0x23
{"nsum16", sum, 0xFFFF, 0xFFFF, 2}, // 0xFE23
{"nsum32", sum, 0xFFFFFFFF, 0xFFFFFFFF, 4}, // 0xFFFFFE23
{"notsum", sum, 0x00, 0xFF, 1}, // 0x22
{"xor", xor8, 0x00, 0x00, 1}, // 0x31
{"xor8", xor8, 0x00, 0x00, 1}, // 0x31
{"xor8ff", xor8, 0x00, 0xFF, 1}, // 0xCE
{"xor7", xor7, 0x00, 0x00, 1}, // 0x31
{"crc8", crc_0x07, 0x00, 0x00, 1}, // 0xF4
{"ccitt8", crc_0x31, 0x00, 0x00, 1}, // 0xA1
@ -541,6 +558,7 @@ static checksum checksumMap[] =
{"hexsum8", hexsum, 0x00, 0x00, 1}, // 0x2D
{"cpi", CPI, 0x00, 0x00, 1}, // 0x7E
{"leybold", leybold, 0x00, 0x00, 1}, // 0x22
{"brksCryo",brksCryo, 0x00, 0x00, 1} // 0x4A
};
static uint32_t mask[5] = {0, 0xFF, 0xFFFF, 0xFFFFFF, 0xFFFFFFFF};