This is a brief for STM32-F4 Discovery board for beginners.

1. STM32-M4 First Touch
Ben@staros.mobi
2012/06/26

2. STM32F407VGT6
● 32-bit ARM® Cortex™-M4-based USB for Input
STM32-F4 or ST-LINK
● 168MHz, upto 210 MIPS
● 1MB Flash, 192KB RAM

3. STM32F407VGT6 I/O
● ST-LINK
● Need to be licensed
USB 2.0
OTG

4. Toolchain for ® Cortex™-M4-based
codesourcery arm
● https://sourcery.mentor.com/GNUToolchain/
● arm-2012.03-56-arm-none-eabi-i686-pc-
linux-gnu.tar.bz2
Summon-arm-toolchain
● https://github.com/MikeSmith/summon-arm-
toolchain
● -mcpu=cortex-m4 -mthumb-interwork -
mfloat-abi=hard -mfpu=fpv4-sp-d16 -
mlittle-endian

5. Downloads
stm32
● https://github.com/nabilt/STM32F4-Discovery-Firmware
st-link
● git clone https://github.com/texane/stlink.git stlink
F4OS
● git clone git://github.com/prattmic/F4OS.git
○ 6/26 version include UART with hello example

6. compile stlink in ubuntu 11.04
sudo apt-get install autoconf
sh autogen.sh
./configure
(ps: require libusb-1.0.0)
make
(note: please don't install, just use it by
export PATH=~/stlink/:$PATH)

7. Install udev rules for ST-LINK device
$ cd stlink
$ sudo cp 49-stlink* /etc/udev/rules.d

8. st-flash
F4OS$ st-flash write ./os.bin 0x8000000
2012-06-11T08:56:21 INFO src/stlink-common.c: Loading device parameters....
2012-06-11T08:56:21 INFO src/stlink-common.c: Device connected is: F4 device, id
0x20006411
2012-06-11T08:56:21 INFO src/stlink-common.c: SRAM size: 0x30000 bytes (192
KiB), Flash: 0x100000 bytes (1024 KiB) in pages of 16384 bytes
2012-06-11T08:56:21 INFO src/stlink-common.c: Attempting to write 18376 (0x47c8)
bytes to stm32 address: 134217728 (0x8000000)
EraseFlash - Sector:0x0 Size:0x4000
Flash page at addr: 0x08000000 erasedEraseFlash - Sector:0x1 Size:0x4000
Flash page at addr: 0x08004000 erased
2012-06-11T08:56:22 INFO src/stlink-common.c: Finished erasing 2 pages of 16384
(0x4000) bytes
2012-06-11T08:56:22 INFO src/stlink-common.c: Starting Flash write for F2/F4
2012-06-11T08:56:22 INFO src/stlink-common.c: Successfully loaded flash loader in
sram
size: 18376
2012-06-11T08:56:22 INFO src/stlink-common.c: Starting verification of write complete
2012-06-11T08:56:23 INFO src/stlink-common.c: Flash written and verified! jolly good!

9. st-util wait gdb
ben@xubuntu:~/src/github/stlink$ ./st-util
2012-06-10T22:56:32 INFO src/stlink-usb.c: -- exit_dfu_mode
2012-06-10T22:56:32 INFO src/stlink-common.c: Loading device parameters....
2012-06-10T22:56:32 INFO src/stlink-common.c: Device connected is: F4
device, id 0x20006411
2012-06-10T22:56:32 INFO src/stlink-common.c: SRAM size: 0x30000 bytes
(192 KiB), Flash: 0x100000 bytes (1024 KiB) in pages of 16384 bytes
Chip ID is 00000413, Core ID is 2ba01477.
KARL - should read back as 0x03, not 60 02 00 00
init watchpoints
Listening at *:4242...

10. gdb with st-util
~/F4OS$ arm-none-eabi-gdb
GNU gdb (Sourcery CodeBench Lite 2012.03-56) 7.2.50.20100908-cvs
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-none-
eabi".
For bug reporting instructions, please see:
<https://support.codesourcery.com/GNUToolchain/>.
(gdb) target remote :4242
Remote debugging using :4242
0x007f3ff4 in ?? ()

11. Demo
STM32F407VGT6

12. Backlogs

13. Bus Blaster and OpenOCD
http://www.nabiltewolde.com/?tag=STM32F4
Bus Blaster and OpenOCD
Warning: OpenOCD does not fully support the CortexM4 yet and this method
may damage your hardware. I am not an expert OpenOCD user. Use at your
own risk.
The Bus Blaster is an open hardware JTAG debugger made by Dangerous
Prototypes, which you can get for about $35 atSeeedStudio. Any debugger
compatible with Open On-Chip Debugger (OpenOCD) should work fine for
these instructions.

14. STM32F4 Adapter Board
SOURCE:Projects/stm32f4-adapter-board

15. Using the STM32F4 DISCOVERY Board in OSX Lion
http://www.nabiltewolde.com/using-the-stm32f4-discovery-
board-in/

16. STM32F407VGT6
● microcontroller featuring 32-bit ARM Cortex-M4F core, 1 MB Flash, 192 KB
RAM in an LQFP100 package
● On-board ST-LINK/V2 with selection mode switch to use the kit as a
standalone ST- LINK/V2 (with SWD connector for programming and
debugging)
● LIS302DL, ST MEMS motion sensor, 3-axis
● digital output accelerometer
● MP45DT02, ST MEMS audio sensor, omni- directional digital microphone
● CS43L22, audio DAC with integrated class D speaker driver
● Eight LEDs:
● USB OTG FS with micro-AB connector
● Extension header for all LQFP100 I/Os for quick connection to prototyping
board and easy probing
More - reference DM00037955.pdf