The dnx RTOS is a general purpose operating system based on the FreeRTOS kernel. The dnx layer is modeled on well-known Unix architecture. A destination of the system are small microcontrollers supported by the FreeRTOS kernel, especially 32-bit. The system is easy scalable to the user's needs, the user can write own drivers, virtual devices, programs and so on. The program layer is mostly compatible with the C standard. You can say that the dnx RTOS is a FreeRTOS kernel distribution.
The minimal hardware requirements
There are minimal hardware requirements that allows to start system but with very minimalistic software base:
- 64 KiB Flash memory,
- 16 KiB RAM memory (recommended 20 KiB).
The hardware requirements depends on the user's configuration.
The system features
- user's terminal (via UART interface in example configuration),
- possibility to run many copies of the same program,
- simple porting of PC programs for the dnx (due to the C standard compatibility)
- simple Drivers Layer,
- support many file systems (the VFS Layer),
- interrupts are not masked by the system (the RTOS feature),
- dynamic memory allocation (simple garbage collector for programs),
- supports many CPU architectures (the FreeRTOS feature),
- modular design.
The project configuration
To configure the project, type in the terminal:
To compile the project, type in the terminal:
- BSP - board support packages (configurations)
- build - the project's binaries (created after compilation)
- config - the project's configuration
- doc - documentation
- res - resources included at project build
- src - the project's sources
- tools - the project's tools (scripts, wizard, etc)
The whole documenation and exmaples you can found at dnx RTOS official website.
There is also additional software repository with applications.