Re: [External Mail]RPTUN and RPMSG

Hi, yf NuttX.RPTUN abstracts the OpenAMP.RemoteProc and the OpenAMP.RpmsgVirtio NuttX.Rpmsg wraps the OpenAMP.Rpmsg and add more rpmsg api. I guess you want to ask whether Rpmsg can support different transport layer such as SPI/UART/I2C. Acctually, Rpmsg was designed to be compatible with differ

Re: RPTUN and RPMSG

On Fri, Jan 26, 2024 at 1:01 PM yfliu2008 wrote: > Dear experts, > > > > > I am wondering where we can find high level introduction about the RPTUN > and RPMSG concepts in NuttX? > > > 2022 online workshop has a introduction presentation: https://www.youtube.com/watch?v=6uehz3WQ0vU&t=211s > > >

About memory allocation for DMA on platforms with MMU/cache

Hi all, I am developing on an ARMv7-a Microchip SAMA5D2 board. When interacting with peripherals that have DMA capabilities, there are processes here and there to flush/invalidate the cache. However, I am seeing problems with various drivers that may not be handled properly. For example, Ethern

Re: observations on kernel memory

One possibility is that you are not properly harvesting thread or child exit status.  That is not a memory leak exactly.  You have to start threads in a detached state to prevent the return status from collected. Could something like that be happening? On 1/23/2024 2:45 AM, yfliu2008 wrote: G