QByteArray U2Bits::allocateBits(int nBits) {
int nBytes = getNumberOfBytes(nBits);
#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
return QByteArray(nBytes, Qt::Uninitialized);
#else
return QByteArray(nBytes, char(0));
#endif
}
// checkID - checks the ID of the cape to ensure connection to DMCC
// Parameters: fd - session from DMCC start
// version - version number
// Returns: 0 - if the ID has a compatible version number
// -1 - if an error occurs
// Software version number - otherwise
int checkID(int fd, int version)
{
// Get ID from cape
char *ID = getNumberOfBytes(fd, 16, 0xe0);
if (ID == NULL) {
printf("Error: No ID found for DMCC cape\n");
free(ID);
return -1;
}
// Check ID is DMCC cape
if (strncmp(ID, "DMCC Mk.", 7) != 0) {
free(ID);
printf("Error: Cape specified is not a DMCC cape\n");
printf("ID: %s\n", ID);
return -1;
}
// Get the software version number as an integer to
// check if board version is the same
int v = ((int)(ID[8] - 0x30) * 10) + (int)(ID[9] - 0x30);
if (v != version) {
printf("Error: Board and board base software are not the same\n");
free(ID);
return -1;
}
// Check that the version number is compatible
char pV[2];
pV[0] = ID[8];
pV[1] = ID[9];
// Software is compatible with versions listed in Compatible_Versions array
int i = 0;
while(Compatible_Versions[i] != NULL) {
if (strncmp(pV, Compatible_Versions[i], 2) == 0) {
free(ID);
return 0;
}
i++;
}
// Get the software version number as an integer
free(ID);
return v;
}