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hoverboard-firmware-hack
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added warning and link to uart control to readme

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NiklasFauth 7 years ago committed by GitHub
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README.md
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@ -35,6 +35,8 @@ http://vocke.tv/lib/exe/fetch.php?media=20150722_hoverboard_sch.pdf
## Flashing ## Flashing
To build the firmware, just type "make". Make sure you have specified your gcc-arm-none-eabi binary location in the Makefile ("PREFIX = ...") (version 7 works, there is a version that does not!) (if the ons in linux repos do not work, use the official version: https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads). Right to the STM32, there is a debugging header with GND, 3V3, SWDIO and SWCLK. Connect GND, SWDIO and SWCLK to your SWD programmer, like the ST-Link found on many STM devboards. To build the firmware, just type "make". Make sure you have specified your gcc-arm-none-eabi binary location in the Makefile ("PREFIX = ...") (version 7 works, there is a version that does not!) (if the ons in linux repos do not work, use the official version: https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads). Right to the STM32, there is a debugging header with GND, 3V3, SWDIO and SWCLK. Connect GND, SWDIO and SWCLK to your SWD programmer, like the ST-Link found on many STM devboards.
Do not power the mainboard from the 3.3V of your programmer! This has already killed multiple mainboards.
Make sure you hold the powerbutton or connect a jumper to the power button pins while flashing the firmware, as the STM might release the power latch and switches itself off during flashing. Battery > 36V have to be connected while flashing. Make sure you hold the powerbutton or connect a jumper to the power button pins while flashing the firmware, as the STM might release the power latch and switches itself off during flashing. Battery > 36V have to be connected while flashing.
To flash the STM32, use the ST-Flash utility (https://github.com/texane/stlink). To flash the STM32, use the ST-Flash utility (https://github.com/texane/stlink).
@ -78,6 +80,9 @@ Most robust way for input is to use the ADC and potis. It works well even on 1m
Have a look at the config.h in the Inc directory. That's where you configure to firmware to match your project. Have a look at the config.h in the Inc directory. That's where you configure to firmware to match your project.
Currently supported: Wii Nunchuck, analog potentiometer and PPM-Sum signal from a RC remote. Currently supported: Wii Nunchuck, analog potentiometer and PPM-Sum signal from a RC remote.
A good example of control via UART, eg. from an Arduino or raspberryPi, can be found here:
https://github.com/p-h-a-i-l/hoverboard-firmware-hack
If you need additional features like a boost button, have a look at the while(1) loop in the main.c If you need additional features like a boost button, have a look at the while(1) loop in the main.c
### Additional Hardware ### Additional Hardware

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