OpenRISC Introduction (4)-ORSOC run Linux Experiment

Introduction

If you don't practice fake handles, this section runs Linux with the official FPGA Development Board.

4.1, experimental preparation

1 "ORSOC Tool chain Environment (GCC,GDB,JTAG), build process to see a blog:

http://blog.csdn.net/rill_zhen/article/details/8443882

2 "Ep4ce22 FPGA Development Board (€:149)

3 "Micro-usb Connecting line"

4.2, experimental steps

0 "connection. Connect the USB port at the top left of the board to the PC.

1 "Write RTL integrated circuit logic file (can also use their own quartus synthesis)

$ cd/home/openrisc

$ JTAG./program_fpga.jtag

2 to open Agent service between Gdbdebugger and or processor

$/opt/or_debug_proxy/bin/or_debug_proxy–r 55555

3 "(another terminal) open a serial terminal

Picocom–b 115200–p n–d 8–f XON/DEV/TTYUSB2

4 (one more terminal) to open gdb to download the vmlinux image

$ CD ~/soc-design/linux

$ make Arch=openrisc Defconfig

$ make Arch=openrisc

$ or32-elf-gdb

(GDB) Target remote:55555

(gdb) file./vmlinux

Answer ' y '

(GDB) load

(GDB) SPR NPC 0x100

(GDB) C

5 at this point, look at picocom that terminal, you can see the Linux boot process: The following figure: