This project shows how to send and receive a frame on a GPIO with precise timings. Sending/Reception is perfomed by hardware (PRS, DMA, TIMER) and will not be affected by IRQ timings or CPU load.
All the provided code should be considered as an example which implies that the code provided in the repos has not been formally tested and is provided as-is. It is not suitable for production environments. In addition, this code will not be maintained and there may be no bug maintenance planned for these resources.