136 lines
4.7 KiB
ReStructuredText
136 lines
4.7 KiB
ReStructuredText
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==================
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Particle.io Photon
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==================
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This page discusses issues unique to NuttX configurations for the
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Particle.io Photon board featuring the STM32F205RG MCU.
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The STM32F205RG is a 120 MHz Cortex-M3 operation with 1MB Flash
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memory and 128KB RAM. The board includes a Broadcom BCM43362 WiFi.
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Selecting the Photon board on NuttX
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===================================
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NOTICE: We will not discuss about toolchains and environment configuration
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here, please take a look at STM32F4Discovery board README or other
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STM32 board because it should work for Photon board as well.
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Let us to consider that you cloned the nuttx and apps repositories, then
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follow these steps:
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1) Clear your build system before to start::
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$ make apps_distclean
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$ make distclean
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2) Enter inside nuttx/tools and configure to use the Photon board::
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$ cd nuttx
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$ tools/configure.sh photon:wlan
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Configuring NuttX to use your Wireless Router (aka Access Point)
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================================================================
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Since you are already in the root of nuttx/ repository, execute
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make menuconfig to define your Wireless Router and your password::
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$ make menuconfig
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Browser the menus this way::
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Application Configuration --->
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NSH Library --->
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Networking Configuration --->
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WAPI Configuration --->
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(myApSSID) SSID
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(mySSIDpassphrase) Passprhase
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Replace the SSID from myApSSID with your wireless router name and
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the Passprhase with your WiFi password.
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Exit and save your configuration.
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Finally just compile NuttX::
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$ make
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Flashing NuttX in the Photon board
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==================================
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Connect the Photon board in your computer using a MicroUSB cable. Press and
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hold both board's buttons (SETUP and RESET), then release the RESET button,
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the board will start blinking in the Purple color, waiting until it starts
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blinking in Yellow color. Now you can release the SETUP button as well.
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1) You can verify if DFU mode in your board is working, using this command::
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$ sudo dfu-util -l
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dfu-util 0.8
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Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
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Copyright 2010-2014 Tormod Volden and Stefan Schmidt
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This program is Free Software and has ABSOLUTELY NO WARRANTY
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Please report bugs to dfu-util@lists.gnumonks.org
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Found DFU: [2b04:d006] ver=0200, devnum=15, cfg=1, intf=0, alt=1, name="@DCT Flash /0x00000000/01*016Kg", serial="00000000010C"
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Found DFU: [2b04:d006] ver=0200, devnum=15, cfg=1, intf=0, alt=0, name="@Internal Flash /0x08000000/03*016Ka,01*016Kg,01*064Kg,07*128Kg", serial="00000000010C"
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2) Flash the nuttx.bin inside the Internal Flash::
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$ sudo dfu-util -d 2b04:d006 -a 0 -s 0x08020000 -D nuttx.bin
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dfu-util 0.8
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Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
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Copyright 2010-2014 Tormod Volden and Stefan Schmidt
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This program is Free Software and has ABSOLUTELY NO WARRANTY
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Please report bugs to dfu-util@lists.gnumonks.org
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dfu-util: Invalid DFU suffix signature
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dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
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Opening DFU capable USB device...
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ID 2b04:d006
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Run-time device DFU version 011a
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Claiming USB DFU Interface...
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Setting Alternate Setting #0 ...
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Determining device status: state = dfuIDLE, status = 0
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dfuIDLE, continuing
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DFU mode device DFU version 011a
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Device returned transfer size 4096
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DfuSe interface name: "Internal Flash "
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Downloading to address = 0x08020000, size = 331348
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Download [=========================] 100% 331348 bytes
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Download done.
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File downloaded successfully
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3) Restore the original firmware
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If you config to use the stock bootloader of Photon, you may
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reload the original firmware with dfu-utils as you like. Otherwise
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you must have backuped the whole image beforehand, and reload it
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via SWD debug port.
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NSH via telnet
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==============
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After you successfully downloaded nuttx.bin, reset the board and it
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automatically connects to the corresponding wifi AP. You may login
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your router to see its IP address. Assume that it's 192.168.1.111
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Open a terminal on your computer and telnet your Photon::
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$ telnet 192.168.1.111
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Trying 192.168.1.111...
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Connected to 192.168.1.111.
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Escape character is '^]'
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NuttShell (NSH) NuttX-7.24
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nsh>
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Serial console configuration
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============================
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Connect a USB/Serial 3.3V dongle to GND, TX and RX pins of Photon board.
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Then use some serial console client (minicom, picocom, teraterm, etc) confi-
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gured to 115200 8n1 without software or hardware flow control.
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Reset the board and you should see NuttX starting in the serial.
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