if(params.flags == -1) params.flags = 0;
if(params.baudrate == -1) params.baudrate = chip->baudrate;
if(params.sjw == -1) params.sjw = 0;
if(params.flags == -1) params.flags = 0;
if(params.baudrate == -1) params.baudrate = chip->baudrate;
if(params.sjw == -1) params.sjw = 0;