Maple Mini¶
Programming with OpenOCD¶
The Maple Mini can be programmed using OpenOCD and a suitable programmer.
To program a Maple Mini the following PINs should be connected:
Prog |
MM |
|---|---|
GND |
GND |
3V3 |
Vcc |
MOSI |
D22 |
CLK |
D21 |
If the maple mini still has the original firmware it may be necessary to press and hold the button (at least 1 s) while resetting the board, to enter DMU mode.
Create the file openocd.cfg according to the programmer you are
using, and then run:
openocd -f openocd.cfg
telnet localhost 4444
To then write <binary>.elf to the Maple Mini use the following
commands:
reset halt
stm32f1x unlock 0
reset halt
flash write_image erase <binary>.elf
stm32f1x lock 0
reset halt
With an ST-Link V2 Clone from Baite¶
The required PINs on the ST-Link V2 Clone from Baite are as follows, with the notch on the left:
+------+
| 1 2 | 3V3
5V | 3 4 | CLK (MM 21)
5 6 | MOSI (MM 22)
GND | 7 8 |
| 9 10 |
+------+
openocd.cfg should have the following contents:
source [find interface/stlink.cfg]
source [find target/stm32f1x.cfg]
With a Bus Pirate v3.6¶
openocd.cfg should have the following contents:
source [find interface/buspirate.cfg]
buspirate_port /dev/ttyUSB0
buspirate_vreg 1
buspirate_mode normal
transport select swd
source [find target/stm32f1x.cfg]
Programmin with gnuk/tool/stlinkv2.py¶
gnuk also provides a tool to write binaries; first the board should be unlocked with:
./stlinkv2.py -u
then reset (while pressing the button), and the flash erased:
./stlinkv2.py -e
and finally it can be written with:
./stlinkv2.py <binary>.elf