Nios II Classic Software Developer’s Handbook

ID 683282
Date 5/14/2015
Public
Document Table of Contents

4.10.3. Boot from Monitor Configuration

The reset address points to a monitor in a nonvolatile ROM or initialized RAM. The monitor initializes the instruction cache, downloads the application memory image (for example, using a UART or Ethernet connection), and then jumps to the entry point provided in the memory image.

This boot configuration has the following characteristics:

  • alt_load() not called
  • No code at reset in executable file

The default Tcl script assumes no boot loader is in use, so it chooses this configuration only if you enable it. To enable this configuration, pass the following argument to the default Tcl script:enable_bootloader 1

If you are using the nios2-bsp script, call it as follows:

nios2-bsp hal my_bsp --use_bootloader 1