matlab serial communication with mbed

I am trying to use mbed LPC1768 to read sensors and use matlab to collect the data by serial port. If I use PuTTy, I am able to see the data of serial port perfectly. However, when I try to use matlab, it does not work.

the command on matlab is simple like:

 mbed = serial('COM5')
 fopen(mbed)
 value = fscanf(mbed,'%f')

I can read the first two values but after that, the value will always the same.. I use the LEDs on mbed to debug, the code of mbed does not have problems. However, the LED of the USB connector will not blink if I use matlab. The problem is the the data will not continually be sent. Could anyone help me about this?

Answer 1

[Walter Roberson]

You should configure the BaudRate and Terminator properties of the serial object, and probably the FlowControl property as well.

If your data is line-oriented I recommend using fgetl() to fetch a line, and then sscanf() to read from the stored line. fgets() can cause you problems if the data you receive does not have the line boundaries that you expect.