Just a small idea: A couple storage devices could be on there for testing various file systems. I'm thinking NOR flash, NAND flash and an EEPROM would be good additions. They can just be small in size for testing purposes. If you want to save on pins, you could use a single spi bus & CS line for all three and just have a switch that lets you swap which device the CS line is connected to.
Maybe the NOR flash doesn't need to be there because the MCU has flash onboard that could be used instead. But NAND flash would be good for testing. Matteo On Sun, Sep 7, 2025 at 4:06 PM Alan C. Assis <[email protected]> wrote: > Hi Everyone, > > Thank all participants of the meeting about the NuttX Standard Board. > > For those who were unable to attend, the video is available on YouTube: > https://www.youtube.com/watch?v=keZAZ8GiYzI > > Just a summary of our meeting today: > > - It was defined that we should use the DIMM DDR2 SO-DIMM. > Pros: It has 200 positions (pins); Low Cost; Easy to solder manually; The > CPU/MCU Modules don't require a connector. > Cons: the CPU/MCU module needs to use ENIG ( > https://en.wikipedia.org/wiki/Electroless_nickel_immersion_gold) that is a > little bit more expensive than simple PCBs > > - In order to simplify the base board routing and avoid complexity some > high speed interfaces (LCD, Ethernet) will be in the CPU/MCU Module. (but > the signals will be available in the connector (TBD)) > Pros: Simplify the board design; Avoid rigid rule of have only a single > Ethernet's PHY or LCD module tested all the time; > Cons: The CPU/MCU Module will end-up becoming more expensive because these > extra components > > - The Mainboard/Baseboard will have the most common sensors/peripheral > soldereds in the board and an expansion connectors (i.e. MicroBUS, P-MOD, > MicroMOD, etc) to let users/developers test other devices. > Pros: Reduce final cost; Brings more flexibility > Cons: Increase the board size to support these expansion connectors. > > We should have a new meeting next week (Sunday) to decide which devices we > will include in the board, if you have suggestions to improve our board, > please participate. > > BR, > > Alan > > On Sun, Sep 7, 2025 at 9:14 AM Alan C. Assis <[email protected]> wrote: > > > Hi Everyone, > > > > For those who will participate in the design phase, please join in the > > Jitsi, we will start in 45min: > > > > https://meet.jit.si/Developing_NuttX_Standard_Board > > > > BR, > > > > Alan > > > > On Sat, Sep 6, 2025 at 11:57 AM Alan C. Assis <[email protected]> wrote: > > > >> Hi Everyone, > >> > >> We will have tomorrow morning (afternoon/evening for merians A to M) our > >> first meeting about the NuttX Standard Board: > >> > >> https://www.youtube.com/live/keZAZ8GiYzI > >> > >> New to this subject? Ref: > >> > https://github.com/NuttX/nuttx_hardware/blob/main/Documentation/standard/index.rst > >> > >> Please join us to define which features we need to have in this board. > >> > >> BR, > >> > >> Alan > >> > > >
