This is a MicroPython board definition file for the BrainPad from GHI Electronics.
The product page for the BrainPad can be found here: http://docs.ghielectronics.com/hardware/products/brainpad.html
Build the firmware using:
cd micropython/ports/stm32/boards
git clone https://github.com/dhylands/BRAINPAD.git
cd ..
make BOARD=BRAINPAD
To get the BrainPad into DFU mode, press and hold the BOOT0 pushbutton while plugging in the USB cable.
Once in DFU mode, you should be able to use the dfu-util --list command and see
something like this:
Found DFU: [0483:df11] ver=2200, devnum=9, cfg=1, intf=0, alt=3, name="@Device Feature/0xFFFF0000/01*004 e", serial="3473375A3334"
Found DFU: [0483:df11] ver=2200, devnum=9, cfg=1, intf=0, alt=2, name="@OTP Memory /0x1FFF7800/01*512 e,01*016 e", serial="3473375A3334"
Found DFU: [0483:df11] ver=2200, devnum=9, cfg=1, intf=0, alt=1, name="@Option Bytes /0x1FFFC000/01*016 e", serial="3473375A3334"
Found DFU: [0483:df11] ver=2200, devnum=9, cfg=1, intf=0, alt=0, name="@Internal Flash /0x08000000/04*016Kg,01*064Kg,03*128Kg", serial="3473375A3334"
Setup udev rules as described here
Now you can flash MicroPython using:
make BOARD=BRAINPAD deploy
The board should reboot, and you should then be able to connect to the MicroPython REPL on the usb serial port (typically /dev/ttyACM0):
MicroPython v1.9.2-60-gbeeb748 on 2017-09-06; BRAINPAD with STM32F401RE
Type "help()" for more information.
>>>
Now that MicroPython is installed, as long as you can get to the REPL, then you can get back into DFU mode by using the command:
>>> pyb.bootloader()
or by pressing and holding BOOT0 while plugging in the USB cable.
Currently, the L pushbutton is connected to the User Switch.
Peripheral Testing status:
Tested:
- USB Repl/Mass Storage
- LED (including PWM intensity)
To be tested:
- Push Buttons
- Piezo Buzzer
- Servo
- LCD
- Accelerometer
- Temperature Sensor
- Light Sensor