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Altera_Forum
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12 years ago

fwrite and UART RXData

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'); ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

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 ?