Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

printf bug?

Hello. I've encountered a strange behaviour of prinf function. The code is a simple "hello world" example: #include <stdio.h> int main() { printf("Hello 1\n"); printf("HELLO 2\n"); return 0...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Try with a delay loop just before the return or even with a while(1) after the last printf.

Functions like printf are non-blocking: the string is sent to the jtag uart buffer, but transmission will take place when the interface is ready, thus it could be delayed.

Terminating the program before transmission has completed could prevent data from being received by your terminal.