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- *****************************************************************************
- ** ChibiOS/RT port for ARM-Cortex-M3 STM32F103 on LeafLabs MapleMini **
- *****************************************************************************
- ** TARGET **
- The demo runs on the MapleMini with the original MapleMini bootloader.
- You can also use this firmware without the original bootloader. To do so,
- pass USE_MAPLEMINI_BOOTLOADER=0 to make:
- > make USE_MAPLEMINI_BOOTLOADER=0
- ** The Demo **
- This demo flashes the board LED using a thread. Also, a simple command shell
- is activated on virtual serial port via USB-CDC driver.
- ** Build Procedure **
- The demo has been tested by using the free arm gcc embedded toolchain.
- Just modify the TRGT line in the makefile in order to use different GCC ports.
- ** Flashing Target Board **
- To flash the firmware to the maplemini, you can use dfu-util. While the MapleMini is connected via USB and
- still in bootloader mode, just run
- > dfu-util -a1 -d 1eaf:0003 -D build/ch.bin -R
- If you compiled without the bootloader support, you will have to flash via the
- original serial flashing method or via SWD. For the serial method please see
- http://static.leaflabs.com/pub/leaflabs/maple-docs/latest/bootloader.html#id7
- for a howto. there you can also get the official bootloader files.
- As a quick reference:
- 1) connect TTL UART:
- TX to maple rx1 ("25")
- RX to tx1 ("26")
- GND to gnd
- 3.3V to vcc or 5V to vin
-
- 2) hold RESET and BUT buttons, release RESET, then after a sec BUT
- (this sets the STM32 into serial upload mode)
-
- 3) use stm32loader.py from the link above to upload the firmware
- > stm32loader.py -p <uart-device> -evw build/ch.bin
-
- 4) reset device
- ** Notes **
- Some files used by the demo are not part of ChibiOS/RT but are copyright of
- ST Microelectronics and are licensed under a different license.
- Also note that not all the files present in the ST library are distributed
- with ChibiOS/RT, you can find the whole library on the ST web site:
- http://www.st.com
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