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137 lines
5.2 KiB
Plaintext
137 lines
5.2 KiB
Plaintext
/**
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@defgroup boards_fox fox
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@ingroup boards
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@brief Support for the fox board
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## Components
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| MCU | [ST2M32F103REY](http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1031/LN1565/PF164485) – 32-bits|
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|-------|-----------------------------------------------------------------------------------------------------|
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| RAM | 64Kb |
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| Flash | 512Kb |
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| radio chipset | [AT86RF231](http://www.atmel.com/images/doc8111.pdf) |
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| | a IEEE802.15.4-compliant radio at 2.4 GHz |
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## Implementation Status
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| Device | ID | Supported | Comments |
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|:------------- |:------------- |:------------- |:------------- |
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| MCU | [STM23F103REY](http://www.st.com/st-web-ui/static/active/en/resource/technical/document/reference_manual/CD00171190.pdf) | partly | Energy saving modes not fully utilized |
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| Low-level driver | GPIO | yes | |
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| | PWM | no | |
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| | UART | full | |
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| | I2C | yes | |
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| | SPI | yes | one SPI device for now |
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| | USB | no | |
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| | RTT | yes | in progress |
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| | RNG | no | no HW module |
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| | Timer | full | |
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| Radio Chip | AT86RF231 | partly | will be remodelled soon |
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##### Note on at86rf231 radio driver
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The current implementation of the radio driver for the at86rf231 chip uses
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the basic operation modes. This gives
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you basic sending and receiving functionality but no hardware address
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filtering and no auto-ACKs etc. Due to the fact this radio device is an IEEE
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802.15.4 compliant device it supports radio channels from 11 to 26. When trying
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to set a channel out of range the driver returns an error and prints a message
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with `DEVELHELP` enabled.
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## Toolchains
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See [ARM Family](https://github.com/RIOT-OS/RIOT/wiki/Family:-ARM)
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Working:
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* [gcc-arm-embedded](https://github.com/RIOT-OS/RIOT/wiki/Family:-ARM#gcc-
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arm-embedded-toolchain)
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* [gcc-linaro](https://github.com/RIOT-OS/RIOT/wiki/Family:-ARM#linaro-
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toolchain)
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### Programming and Debugging
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In order to program (flash) and debug the node you need
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[OpenOCD](http://openocd.sourceforge.net/) and an ARM version of gdb (`arm-none-
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eabi-gdb`), which provided by most toolchains. Most Linux distributions provide
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also a package for OpenOCD. The required configuration files are provided by
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RIOT.
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When starting the debugger with `make debug BOARD=fox` GDB connects to
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openocd, loads the elf-file and puts the MCU into halt state. Before setting
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breakpoints it is sometimes needed to use the following workflow
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```
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bash
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monitor reset run
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monitor reset halt
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b <breakpoint>
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c
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```
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For best debugging experience also change the `-Os` flag in
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`Makefile.inlcude`'s `CFLAGS` variable to `-O0`.
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## Debugging
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For debugging you need to open a terminal. Here you simply have to call `make
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debug` - assuming that the current directory is your application directory. It
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establishes an openocd connection to the device and starts gdb connected to the
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openocd instance. For example, it should look something like this
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```
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[user@host RIOT]$ cd examples/default/
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[user@host default]$ BOARD=fox make
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Building application default for fox w/ MCU stm32f1.
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...
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[user@hostdefault]$ BOARD=fox make debug
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RIOT/boards/hikob-common/dist/debug.sh RIOT/boards/fox/dist/gdb.conf
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RIOT/examples/default/bin/fox/default.elf
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Open On-Chip Debugger 0.8.0 (2014-07-27-20:18)
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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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GNU gdb (GNU Tools for ARM Embedded Processors) 7.4.1.20140401-cvs
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Copyright (C) 2012 Free Software Foundation, Inc.
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law. Type "show copying"
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and "show warranty" for details.
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This GDB was configured as "--host=x86_64-apple-darwin10 --target=arm-none-
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eabi".
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For bug reporting instructions, please see:
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<http://www.gnu.org/software/gdb/bugs/>...
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Reading symbols from RIOT/examples/default/bin/fox/default.elf...done.
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idle_thread (arg=<optimized out>) at RIOT/core/kernel_init.c:67
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67 lpm_set(LPM_IDLE);
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JTAG tap: stm32f1x.cpu tap/device found: 0x3ba00477 (mfg: 0x23b, part:
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0xba00, ver: 0x3)
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JTAG tap: stm32f1x.bs tap/device found: 0x06414041 (mfg: 0x020, part: 0x6414,
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ver: 0x0)
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target state: halted
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target halted due to debug-request, current mode: Thread
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xPSR: 0x01000000 pc: 0x0800027c msp: 0x20002200
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Loading section .text, size 0x6df4 lma 0x8000000
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Loading section .ARM.exidx, size 0x8 lma 0x8006df4
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Loading section .relocate, size 0x120 lma 0x8006dfc
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Start address 0x8000000, load size 28444
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Transfer rate: 11 KB/sec, 7111 bytes/write.
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(gdb) c
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Continuing.
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```
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The node will reboot and you can continue to use `gdb` like you're used to.
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In some cases it
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seems necessary to prepend a `monitor reset run` before executing continue.
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In general you can
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use openocd commands prepended by `monitor`.
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In the case the node crashes it can be reset with the following sequence
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```
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Bash
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(gdb) monitor reset halt
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(gdb) monitor reset run
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```
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## Troubleshooting
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For terminal output on OS X (`make term`) you need to install a driver:
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http://www.ftdichip.com/Drivers/VCP.htm
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http://www.ftdichip.com/Drivers/VCP.htm
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*/
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