Hi Leelong,
I just have modified your own program of C Mode and I tried out the C-V Mode but there is a problem in reading data as I used the standard data transfer with ASCii format. it works very well in the C Mode but in C-V Mode it doesn't.
if you have an idea try to do so because if it works for C-V it will be the same as C-t Mode.
Thank you very well for your last help.
