Thanks for the tip Alan!  I modified that config slightly(reconfigure
the clocks) and got it to boot and output information on the serial
port.  Now I just need to configure the applications appropriately.

-Robert Middleton

On Sun, Aug 13, 2023 at 2:19 PM Alan C. Assis <acas...@gmail.com> wrote:
>
> Hi Robert,
>
> Why don't you use the omnibusf4 board as starting point, since it uses
> same MCU model:
>
> arm/stm32/omnibusf4/configs/nsh/defconfig:CONFIG_ARCH_CHIP_STM32F405RG=y
>
> Starting with a board and changing the MCU to other like you are doing
> will cause many issues, like this CONFIG_MM_REGIONS.
>
> It is better to start with a board using same MCU as your and then you
> evolve it to a different animal. Normally I test the board more
> similar to mine and then I create a new board from it, copying the
> entire board directory to a new name changing the boards/Kconfig in
> three places to add my new board and rename all
> CONFIG_BOARD_BLABLABLANAME to my board name.
>
> BR,
>
> Alan
>
> On 8/13/23, Robert Middleton <osfan6...@gmail.com> wrote:
> > Hi all,
> >
> > I'm working on a project and looking at the STM32F405RG with NuttX but
> > I'm running into some issues getting it to compile. For a dev board,
> > I'm using the SparkFun STM32 Thing Plus board, and my hope is to get
> > the console running on the USB port, but first I just want to get a
> > serial console working.
> >
> > What I've tried to do:
> > 1. Run configure with a similar processor: ./tools/configure.sh -l
> > nucleo-f4x1re:f401-nsh
> > 2. Change the system type via menuconfig(System Type -> STM32 Chip
> > Selection, select STM32F405RG)
> > 3. Try to build(using 'make').  This fails with an error:
> > ./chip/stm32_allocateheap.c:469:10: error: #error "CCM SRAM excluded
> > from the heap because CONFIG_MM_REGIONS < 2"
> > 4. Try to reconfigure NuttX with menuconfig, but now things are stuck
> > and don't work:
> > robert@debian:~/nuttx$ make menuconfig
> > CP: arch/dummy/Kconfig to /home/robert/nuttx/arch/dummy/dummy_kconfig
> > CP: boards/dummy/Kconfig to /home/robert/nuttx//Kconfig
> > LN: platform/board to /home/robert/apps/platform/dummy
> > LN: include/arch to arch/arm/include
> > LN: include/arch/board to /home/robert/nuttx//include
> > LN: drivers/platform to /home/robert/nuttx/drivers/dummy
> > LN: include/arch/chip to /home/robert/nuttx/arch/arm/include/stm32
> > LN: arch/arm/src/chip to /home/robert/nuttx/arch/arm/src/stm32
> > LN: arch/arm/src/board to /home/robert/nuttx//src
> > No directory at /home/robert/nuttx//src
> > make[1]: *** [tools/Unix.mk:300: arch/arm/src/board] Error 1
> > make: *** [tools/Unix.mk:684: menuconfig] Error 2
> >
> > Any thoughts as to what to look into to try and fix the problem?
> > Trying to build on Debian 11, with ARM GCC 8.3.1 from apt.
> >
> > -Robert Middleton
> >

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