Freertos posix Development

This wiki describes the development of freertos_posix - a POSIX wrapper for FreeRTOS. The wrapper has been used for deploying the dsPic33 development board.

Architecture

• Refer to software architecture from here

Source Code

• The most up-to-date development can be found at repository freertos_posix

POSIX Threads Scheduler

• The task scheduler is based on FreeRTOS incorporating coroutine developed by Simon Tatham. The scheduler API is wrapped by the POSIX Thread API.
  • e.g. pthread_create(), usleep(), etc.

POSIX Driver Development

• Software drivers are developed to allow users at Application Level to use the hardware (e.g. ADC, DAC, UART, NVM etc) through the POSIX System call API.
  • e.g. open(), write(), read(), ioctl(), lseek(), etc.
• An example of how to develop drivers for Microchip dsPic33 devices can be found here

Power Management

• to be added