fwrite and UART RXData

[Altera_Forum]

Hello, 

 I need some help.   My Matlab code is as follows: fopen(s); fwrite(s,127,'int8');   A=fscanf(s,'%i'); B=fscanf(s,'%i'); B=fscanf(s,'%i');  fwrite(s,127,'int8'); fclose(s);  However, when I try to perform a printf from Nios2, all I recieved was the the value from the first fwrite(...). The data from the second fwrite(...) seems to be missing.  Why this is so?  Thanks.

[Altera_Forum]

Hi, with only those elements, hard to help you. 

 To be clear :  { PC -------------to, via serial interface (RS232...),----------------> your NIOS II board }   Here you posted the Matlab "program" that sends data from your PC.   { your NIOS II board ---------- to, via JTAG--------------> your PC or another PC }  Your NIOS II receive data and you use "printf" to print, via JTAG, to your Nios II terminal  Right ?    How does your NIOS II program look like ? With NIOS II, You use interrupts or simply read RS232 time to time ?