User guide

Nios II IDE Help System

Builds the project. If the project is not up-to-date, then the IDE builds it first to

generate an up-to-date executable file.

Establishes communication with the target board, and verifies that the expected SOPC

Builder system is configured in the FPGA. If the FPGA is not configured properly, you

should repeat the steps to configure the hardware.

Downloads the executable file (.elf) to memory on the target board using the nios2-

download command line tool.

Note: For details on the nios2-download command line tool, refer to the Related

Topics. For details on nios2-download command line arguments, type nios2-

download --help from the Nios II command shell.

Sets a breakpoint at main(). (debugging only)

Instructs the Nios II processor to begin executing the code.

Suspends code execution at main(). (debugging only)

Note: After using Run As, Run, Debug As, or Debug once, click Run or Debug

on the toolbar to run or debug again.

Program output can appear in the Console view of the Nios II IDE. The Console view maintains

a terminal I/O connection with a communication device, such as a JTAG UART, connected to

the Nios II processor in the SOPC Builder system. When the Nios II program writes to stdout

or stderr, the Console view displays the text. The Console view can also accept character input

from the host keyboard, which is sent to the processor and read as stdin.