hi the following below is my matlab code

s=serial('COM3','BaudRate',38400,'Timeout',10,'Terminator','LF');

s.databits=8;

s.stopbits=1;

fopen(s)

fwrite(s,'heloo');

Thank you

Thank u Noritake

The data Which I am sending to the VFD display unit through matlab  is displayed only for a small fraction of time after executing the code  and  the display unit screen is getting cleared and some times the previous data and the present data means executing the code for second time are displayed till I switch off the display unit.

Thanks Noritake

i am receving the data whatever am sending.But For the same code sometimes the data transmitted is retaining in the disply and sometimes it is displaying the data in that particular instant only

hi the default configurations of signal and jumper configurations only used. i tried with different baudrates also but still not getting proper output

hi thanks for your suggestion i tried with EVEN parity but didnt get the output. I am trying to check for jumper configurations and let you know the jumper configurations

hi thanks for your reply.

Actually i got the display finished product form from the vendor company so i dont have access to jumpers configuration

but before using MATLAB i send serial data using HYPER TERMINAL with a BaudRate of 19200 and i received the data whatever am sending

hi am using CU20045SCPB-T31A VFD display. How to transmitt international font using matlab

Hi i am using CU20045SCPB-T31A VFD Display, through MATLAB am trying to send data using serial communication and through RS-232 to RS-485 connecter i connected to display. The following below is the my MATLAB code

s=serial('COM3','Baudrate',19200);

set(s,'stop bits',1);

set(s,'databits',8);

fopen(s);

fwrite(s,'HELLO');

but instead of HELLO am reciveing different symobls in display...please help me out