This is the ninth post of my series documenting the development of a custom firmware for the FS-i6s transmitter. In my previous post we mapped the gpios for the buttons. This time it is not a real howto/tutorial but rather a short status overview. Codebase I did some cleaning up of the code base and… Read More »
This is the eighth post of my series documenting the development of a custom firmware for the FS-i6s transmitter. In my previous post we used the I2C peripheral to talk to the touch controller chip. This time we will hack a small piece of code to find out the pin mapping for the buttons. Buttons!… Read More »
This is the seventh post of my series documenting the development of a custom firmware for the FS-i6s transmitter. In my previous post we used the internal DMA engine to read out all ADC channels. Now it’s time to activate the FT6236 touchscreen. Touch! How? The Flysky FS-i6S uses an FT6236 controller. There is some… Read More »
This is the sixth post of my series documenting the development of a custom firmware for the FS-i6s transmitter. In my previous post we dealt with the LC-Display, this time we will set up the STM32F0 ADC in DMA mode. Sticks’n’Switches On the FlySky FS-i6s transmitter, all sticks and switches are connected to the analog… Read More »
This is the 5th post of my series documenting the development of a custom firmware for the FS-i6s transmitter. In my previous post i showed you how to run the gdb on the remote target to step through your custom code on a stm32f0. This time we will set up our code to drive the… Read More »
This is the fourth post of my series documenting the development of a custom firmware for the FS-i6s transmitter. In my previous post we used the st-link debugger to flash our own led blinking code to the transmitter. This time i will show you how to use gdb to do step by step debugging on… Read More »
This is the third post of my series documenting the development of a custom firmware for the FS-i6s transmitter. In my previous post i wrote about how to connect to the target using the DFU bootloader mode. This time we will use a different way to connect to the STM32F0: We will connect a ST-Link… Read More »
In order to install the ST-Link utilities on Linux (Ubuntu) we have to make sure to have the libusb-dev library installed. On Ubuntu systems you can install the necessary library by executing: sudo apt-get install libusb-1.0-0-dev We will now download, build and install the latest ST-Link utilities from scratch git clone https://github.com/texane/stlink stlink.git cd stlink… Read More »
This is the second post of my series documenting the development of a custom firmware for the FS-i6s transmitter. See my previous post for details about the used parts and the pinout. DFU Bootloader The STM32F0 has a nice feature: An on-board, un-brickable DFU bootloader. This bootloader can be entered by the following sequence: remove… Read More »
This is the first post of my series documenting the development of a custom firmware for the FS-i6s transmitter. Components In order to write a custom firmware for the Flysky FS-i6s transmitter we will need to know which components are used and how they are connected. So let’s take a look at the PCB: CPU… Read More »