stm32 external SRAM

[Jython]

we have added 1M ram by FSMC,  and want to manage it by system malloc
controler

On Fri, Jun 14, 2019 at 10:26 AM Mr. Andrei Chichak <groups at chichak.ca>
wrote:

> A 407 doesn’t normally have external RAM.
>
> ARMs have flash at 0 and the 407 has RAM at 0x2000 0000 as you discussed
> earlier.
>
> If you want to work with external flash or RAM, you have to set up the
> FSMC or FMC to support it, but that isn’t a part of the dev board that
> Sebastian used for the BSP port.
>
> The external memory is going to be very specific to your board. Which
> board are you working with?
>
> A
>
> > On 2019-June-13, at 06:23, Christian Mauderer <
> christian.mauderer at embedded-brains.de> wrote:
> >
> > On 05/06/2019 02:55, Jython wrote:
> >> Hello!
> >>
> >>     2. In the normal (non-debugging) case, the linker script still
> >>        places the
> >>
> >>    .text section near zero, but places the start of the .data and .bss
> >>    sections at the start location of the MPC555's internal RAM. The
> >>    system startup code then configures the external RAM just after the
> >>    internal RAM in memory, forming one large block from the two RAM
> >>    devices.
> >>
> >> from https://devel.rtems.org/wiki/TBR/BSP/Ss555
> >>
> >> but i dont know how to configure the external RAM just after the
> >> internal RAM in memory?
> >> hope you could give me some guide!
> >>
> >>
> >
> > Hello Jython,
> >
> > the documentation you linked is for an MPC. But your subject line
> > mentions an STM32. What controller / BSP are you using?
> >
> > Best regards
> >
> > Christian Mauderer
> > --
> > --------------------------------------------
> > embedded brains GmbH
> > Herr Christian Mauderer
> > Dornierstr. 4
> > D-82178 Puchheim
> > Germany
> > email: christian.mauderer at embedded-brains.de
> > Phone: +49-89-18 94 741 - 18
> > Fax:   +49-89-18 94 741 - 08
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> >
> > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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>
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