124 lines
3.9 KiB
Plaintext
Executable File
124 lines
3.9 KiB
Plaintext
Executable File
README
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======
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This is the README file for the port of NuttX to the TI CC3200 Launchpad.
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OpenOCD for Windows
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===================
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Get the CC3200 SDK
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------------------
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Get this from the TI web site. Also get "CC3200 SimpleLink™ Wi-Fi® and
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IoT Solution With MCU LaunchPad™ Getting Started Guide" (SWRU376A)
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Get OpenOCD
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------------
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The OpenOCD project is here: http://openocd.sourceforge.net/
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I use the pre-built binaries provided by Freddie Chopin that can b
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downloaded here: http://www.freddiechopin.info/
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I used version 0.8.0 which available here:
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http://www.freddiechopin.info/en/articles/34-news/92-openocd-w-wersji-080
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Other versions are available here:
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http://www.freddiechopin.info/en/download/category/4-openocd
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Get Zadig
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---------
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Unless you are very clever with Windows drivers, then I also recommend
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that you download and install Zadig: http://zadig.akeo.ie/
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Other Stuff
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-----------
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USB Cable, your favorite serial terminal program, NuttX build with
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one of the CC3200 configurations in this diretory.
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Installing
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----------
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Install the TI CC3200 SDK and OpenOCD. Zadig is just an binary so there
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is no installation. Plug in the CC3200 via the USB cable. You should see
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two new devices in the Windows Device Manager, both called:
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USB <-> JTAG/SWD
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There will be indications on the driver icon that no driver is installed.
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Follow the instructions in the paragraph "Install USB Driver" to install
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the TI USB drivers. You need to do this twice, once for each device. Now
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you will have two devices with different names:
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CC3200CP JTAG Port A, and
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CC3200CP UART Port B
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OpenOCD cannot use the TI JTAG drivers. So we need to replace that port
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(ONLY) with the libusb driver. Use Zadig to install the libusb driver
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replacing the TI driver for "CC3200CP JTAG Port A". Now you should have
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the following under "Ports (COM & LPT)":
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CC3200 UART Port B
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And under "Universal Serial Bus Devices", again:
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USB <-> JTAG/SWD
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But this time without the indication that a driver is needed.
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Starting OpenOCD
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----------------
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These instructions assume that (1) you are using a terminal with a Bash
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shell under Cygwin, (2) that you installed OpenOCD at C:\openocd-0.8.0,
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and (3) you are using a 64-bit windows version. You will need to make
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minor changes if any of these are not true.
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The script to use with OpenOCD 0.8.0 is provided in
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nuttx/configs/cc3200-launchpad/tools. Go there and start OpenOCd as
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follow:
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$ cd configs/cc3200-launchpad/tools
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$ /cygdrive/c/openocd-0.8.0/bin-x64/openocd-x64-0.8.0.exe --file cc3200.cfg
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And you should see something like:
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Open On-Chip Debugger 0.8.0 (2014-04-28-08:42)
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Licensed under GNU GPL v2
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For bug reports, read
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http://openocd.sourceforge.net/doc/doxygen/bugs.html
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Info : only one transport option; autoselect 'jtag'
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adapter speed: 1000 kHz
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Info : clock speed 1000 kHz
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Info : JTAG tap: cc3200.jrc tap/device found: 0x0b97c02f (mfg: 0x017, part: 0xb97c, ver: 0x0)
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Info : JTAG tap: cc3200.dap enabled
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Info : cc3200.cpu: hardware has 6 breakpoints, 4 watchpoints
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Open the Serial Terminal
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------------------------
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Connect the CC3200 board via the USB cabale. Open the serial terminal
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program using the libusb COM device. For me this is usually COM6 but
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could be anything. If you are unsure, remove the CC3200 and see which
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one goes away.
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The serial interface should be configured 115200 8N1.
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Using GDB
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---------
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Start GDB and connect to OpenOCD:
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$ arm-none-eabi-gdb
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(gdb) target remote localhost:3333
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Load and start the NuttX ELF file (nuttx):
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(gdb) mon reset halt
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(gdb) load nuttx
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(gdb) cont
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(gdb)
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After entering cont(inue), you should see the NSH prompt in the serial
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terminal window:
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C3200 init
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NuttShell (NSH)
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nsh>
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