Hi Michal, > rather from board level section
Yes Have a look at this example. https://github.com/PX4/PX4-Autopilot/blob/master/boards/px4/fmu-v5x/src/init.cpp#L243-L247 -----Original Message----- From: Michal Lenc <michall...@seznam.cz> Sent: Sunday, March 6, 2022 2:38 PM To: dev@nuttx.apache.org Subject: Serial RX DMA polling Hi all, serial drivers use periodic polling for DMA receive callback to ensure the reception of bytes that were not taken by DMA interrupt. There are functions like stm32_serial_dma_poll(void) that should be periodically called from a timer for this purpose. However I haven´t been able to find any "example" usage in the NuttX mainline. My first thoughts were to implement the timer directly to the driver (like in ADC drivers) but stm32_serial_dma_poll(void) is not private so I guess it is not supposed to be called from stm32_serial.c but rather from board level section? Is there any consensus on how to use the periodic polling? Thanks. Best regards, Michal Lenc
