Please note that User Registration has been temporarily disabled due to a recent increase in automated registrations. If anyone needs an account, please request one here: RequestAccount. Thanks for your patience!--Wmat (talk)
Please email User:Wmat if you experience any issues with the Request Account form.

Difference between revisions of "Flyswatter Windows How To"

From eLinux.org
Jump to: navigation, search
(Porting TinCanTools wiki content.)
 
(Adding proper categories)
 
Line 1: Line 1:
 
{{HowToWin|FLYSWATTER|BEAGLEBOARD}}
 
{{HowToWin|FLYSWATTER|BEAGLEBOARD}}
 +
 +
[[Category:TinCanTools]]
 +
[[Category:OpenOCD]]

Latest revision as of 03:01, 18 April 2012

This guide will walk you through connecting the Flyswatter and the Beagleboard to your Windows PC, and installing and running OpenOCD. This guide was tested with Windows XP and Windows 7. Instructions are identical on 32-bit and 64-bit versions of Windows unless otherwise noted.


Connecting the Flyswatter and the Beagleboard

To hook up the Flyswatter and the Beagleboard, you will need:

  • Flyswatter
    • USB Male A/Male B cable
    • 14-pin JTAG Ribbon Cable
  • Beagleboard
    • 5V1A Power Supply
  • Beagleboard Adapter Kit (product link)
    • JTAG Adapter Board
    • RS-232 Adapter Board
    • 10-pin Ribbon Cable

The cables listed under the Flyswatter ship with the Flyswatter.


Connect the RS-232 adapter board to the Flyswatter.

Take the RS-232 adapter board provided in the Beagleboard adapter kit, and connect it to the Flyswatter's serial UART interface.

Flyswatter RS232adapter.png


Connect the 10-pin cable to the Flyswatter.

The adapter board above allows you to connect the 10-pin ribbon cable in the Beagleboard adapter kit to the Flyswatter. Do that now. Pay careful attention to the position of the red stripe. The red stripe should line up with the "1" printed on the adapter board, as in the picture below.

Flyswatter RS232cable.png


Connect the other end of the cable to the Beagleboard.

Connect the 10-pin RS-232 cable to the pins to the side of the Beagleboard, the ones next to the power adapter. Make sure the cable is correctly centered over the pins, and again pay attention to the red stripe. It should match up with the "1" printed on the Beagleboard.

Both RS232.png


Connect the JTAG adapter board to the Flyswatter.

Find the JTAG adapter board included in the Beagleboard adapter kit, and plug it into the Flyswatter's JTAG interface. The adapter board should hang out over the edge of the Flyswatter.

Flyswatter jtagadapter.png


Connect the Flyswatter and the Beagleboard with the JTAG cable.

Find the 14-pin JTAG ribbon cable that comes with the Flyswatter. Connect one end to the JTAG adapter board, and the other end to the diagonal pins on the Beagleboard. Make sure the red stripe lines up with the "1" printed next to the pins on the Beagleboard, like in the picture.

Bothcables.png


Connect the USB cable to the Flyswatter.

Find the USB cable that comes with the Flyswatter. Connect the B end (the square end, not the flat end) to the Flyswatter.

Flyswatter usb.png


Connect the power supply to the Beagleboard.

Connect the 5V1A power supply to the Beagleboard. (Your power supply may not look exactly like the one pictured.)

Beagle power.png


Plug the power cable into a surge protector or wall outlet.

Green LEDs should light up on the Beagleboard to indicate that it is receiving power.

Both beaglelit.png


Plug the USB cable into your PC's USB port.

You should see the green outermost LED on the Flyswatter light up, to indicate that the Flyswatter is receiving power through the USB connection.

Both lit.png


Installing OpenOCD

OpenOCD (Open On-Chip Debugger) is open-source software that interfaces with the Flyswatter. OpenOCD provides debugging and in-system programming for embedded target devices. You will need to compile OpenOCD yourself by following one of these guides.

Windows 7

Compiling OpenOCD Win7

Compiling OpenOCD Win7 D2XX

Also use one of these guides for Windows Vista.

Windows XP

Compiling OpenOCD WinXP

Compiling OpenOCD WinXP D2XX


The first set of instructions uses libFTDI, an open-source driver library for FTDI devices. The second set uses FTD2XX, a closed-source driver library from Future Technology Devices International.


Running OpenOCD

Now you are ready to run OpenOCD. Open a command line window; if you're not sure how to do this, see Running OpenOCD on Windows. Navigate to the folder containing openocd.exe (the openocd-bin folder you created in the compile guide) and type:

cd C:\openocd-bin
openocd -f interface/flyswatter.cfg -f board/ti_beagleboard.cfg -c init -c "reset init"


For more information, see Running OpenOCD on Windows. When you start OpenOCD, its output should look like this:

Beagle startup win.png

JTAG-DP_STICKY_ERROR on startup

The -c init -c "reset init" commands in the OpenOCD startup are a workaround for a bug in OpenOCD that affects the Beagleboard and TI Beagleboard XM. If you start OpenOCD without these commands, you will see errors like this:

Beagle startup err win.png

If you see these errors, then the next time you try to start OpenOCD it will give an error the next time it tries to communicate with the Beagleboard. When you exit OpenOCD you will need to disconnect and reconnect the power cable to the Flyswatter before OpenOCD will be able to communicate with the Beagleboard again.

JTAG Tap Unexpected Errors

On startup you may sometimes encounter this error:

Info : JTAG tap: omap3530.jrc tap/device found: 0x000000ff (mfg: 0x07f, part: 0x0000, ver: 0x0)
Warn : JTAG tap: omap3530.jrc       UNEXPECTED: 0x000000ff (mfg: 0x07f, part: 0x0000, ver: 0x0)
Error: JTAG tap: omap3530.jrc  expected 1 of 1: 0x0b7ae02f (mfg: 0x017, part: 0xb7ae, ver: 0x0)

This output means OpenOCD has failed to initialize the JTAG chain. The -c init -c "reset init" commands are a partial workaround for this error. Look for the following line later in the output:

 Info : JTAG tap: omap3530.jrc tap/device found: 0x0b7ae02f (mfg: 0x017, part: 0xb7ae, ver: 0x0)

If you see this line, everything is fine.

Troubleshooting

Getting OpenOCD to initialize JTAG correctly with the Beagleboard is sometimes difficult. If you are having difficulties beyond those described above, consult the troubleshooting page below.

Beagleboard Troubleshooting: JTAG Tap Unexpected

Telnet Connection

You cannot enter commands directly to OpenOCD. Open a new command window and type:

telnet localhost 4444

You will should see this prompt:

Telnet win.png

You can give commands to OpenOCD through this prompt. If you don't see the prompt on Windows 7, you may need to enable the Telnet client. See Configuring Windows 7 for OpenOCD.


Common OpenOCD Commands

To see a full list of OpenOCD commands, enter help in the telnet window.

reset

Resets the Beagleboard. The output of the Reset command should look like this:

Beagle reset win.png

halt

Sends a halt request to the Beagleboard. If the Beagleboard halts, you will see text output in the telnet window. (If the Beagleboard is already halted, you will see no output.)

Beagle halt win.png

halt [timeout]

You can also use halt followed by a time in milliseconds. OpenOCD waits for the target to halt the specified amount of time, then gives up if the target has not halted. You can use this to avoid OpenOCD hanging because the Beagleboard fails to halt. For example, to send a halt command with a timeout of one second, type:

halt 1000

resume

Enter resume to end a halt. You will not see any text output in the telnet window.

reg

Displays a numbered list of all of the Beagleboard's registers.

Beagle reg win.png

reg [entry]

Run reg with a register number to display the contents of a register, in hexadecimal. The register number corresponds to the output of the reg command with no arguments, above. You must run the halt command before reading registers.

Beagle reg0 win.png

If you run reg while the Beagleboard is not halted, you will still see the value stored in the register. However, registers change contents very quickly while the device is running; by the time you see the value, the value actually in the register may be different. If you try to run reg while the device is not halted, you will see this:

Beagle reg0 nothalted win.png


reg [entry] [value]

Sets the value of a register. The register number corresponds to the output of the reg command with no arguments, above. Make sure the Beagleboard is halted (with the halt command) before you change the value of a register!

You can enter registry values in either decimal, by typing a number by itself, or in hexadecimal, by prefacing the value with 0x.

Beagle regset win.png


GDB Debugger

GDB, the GNU Project Debugger is a debugging tool provided with the GNU Compiler Collection (GCC). GDB allows you to stop and start a running program, examine its functioning, and make changes. To install and use GDB with OpenOCD, follow the instructions on the Windows GDB Debugger page below.

Windows GDB Debugger

The GDB debugger page will walk you through installing GDB for use with OpenOCD, and loading and testing a simple program.