STREAM Linux Installation: Difference between revisions
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Run the following command to load the Linux image <tt>halt; load_image vmlinux; reg npc 0x100; reset</tt> | Run the following command to load the Linux image <tt>halt; load_image vmlinux; reg npc 0x100; reset</tt> | ||
The Linux boot process should now start in the terminal connected to the serial console. After the boot is complete you should be greeted by a message saying <tt>Please press Enter to activate this console</tt>. | The Linux boot process should now start in the terminal connected to the serial console. After the boot is complete you should be greeted by a message saying <tt>Please press Enter to activate this console</tt>. | ||
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Latest revision as of 15:18, 15 September 2015
Prerequisites
Software
Hardware
- Serial cable (Any 3.3V USB-to-serial cable should work)
- Altera USB Blaster (or compatible)
Files
- FPGA image (stream.sof)
- Linux image (vmlinux)
Programming the FPGA
Connect the USB Blaster to the FPGA JTAG port. Use the Quartus programmer to load the FPGA image stream.sof to the board or convert the sof file to an rbf file and load it with the LMS7 GUI.
Attach serial console
The following pins are used for UART communication.
- FPGA_GPIO 1 : TX (from computer to Stream board)
- FPGA_GPIO 3 : RX (from Stream board to computer)
- FPGA_GPIO 10 : GND
The following UART settings are used for the Linux system
- Baud rate : 115200
Open a terminal window and connect to the serial console (e.g. screen /dev/ttyUSB0 115200)
Loading Linux
Go to the directory containing the Linux image (vmlinux). Launch openocd with openocd -f interface/altera-usb-blaster.cfg -f board/or1k_generic.cfg If everything works as expected, you should see the following in your terminal:
OpenOCD output
Open On-Chip Debugger 0.9.0-dev-00211-g1e23496 (2015-01-20-13:27)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.sourceforge.net/doc/doxygen/bugs.html
Warn : Adapter driver 'usb_blaster' did not declare which transports it allows; assuming legacy JTAG-only
Info : only one transport option; autoselect 'jtag'
Info : vjtag tap selected
Info : adv debug unit selected
Info : Option 7 is passed to adv debug unit
Info : set servers polling period to 1ms
adapter speed: 3000 kHz
Info : No lowlevel driver configured, will try them all
Info : usb blaster interface using libftdi
Info : This adapter doesn't support configurable speed
Info : JTAG tap: or1200.cpu tap/device found: 0x020f40dd (mfg: 0x06e, part: 0x20f4, ver: 0x0)
Warn : JTAG tap: or1200.cpu UNEXPECTED: 0x020f40dd (mfg: 0x06e, part: 0x20f4, ver: 0x0)
Error: JTAG tap: or1200.cpu expected 1 of 1: 0x020b30dd (mfg: 0x06e, part: 0x20b3, ver: 0x0)
Error: Trying to use configured scan chain anyway...
Warn : Bypassing JTAG setup events due to errors
Info : adv debug unit is configured with option ADBG_USE_HISPEED
Info : adv debug unit is configured with option ENABLE_JSP_MULTI
Info : adv debug unit is configured with option ENABLE_JSP_SERVER
Halting processor
target state: halted
Chip is or1200.cpu, Endian: big, type: or1k
Target ready...
Open a new terminal window and connect to the OpenOCD proxy with telnet localhost 4444. This should result in something like the following:
OpenOCD telnet output
Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Open On-Chip Debugger >
Run the following command to load the Linux image halt; load_image vmlinux; reg npc 0x100; reset The Linux boot process should now start in the terminal connected to the serial console. After the boot is complete you should be greeted by a message saying Please press Enter to activate this console.
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