<div dir="ltr">we have added 1M ram by
FSMC, and want to manage it by system malloc controler <br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jun 14, 2019 at 10:26 AM Mr. Andrei Chichak <<a href="mailto:groups@chichak.ca">groups@chichak.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">A 407 doesn’t normally have external RAM.<br>
<br>
ARMs have flash at 0 and the 407 has RAM at 0x2000 0000 as you discussed earlier.<br>
<br>
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.<br>
<br>
The external memory is going to be very specific to your board. Which board are you working with?<br>
<br>
A<br>
<br>
> On 2019-June-13, at 06:23, Christian Mauderer <<a href="mailto:christian.mauderer@embedded-brains.de" target="_blank">christian.mauderer@embedded-brains.de</a>> wrote:<br>
> <br>
> On 05/06/2019 02:55, Jython wrote:<br>
>> Hello!<br>
>> <br>
>>Â Â Â 2. In the normal (non-debugging) case, the linker script still<br>
>>Â Â Â Â places the <br>
>> <br>
>>Â Â .text section near zero, but places the start of the .data and .bss<br>
>>Â Â sections at the start location of the MPC555's internal RAM. The<br>
>>Â Â system startup code then configures the external RAM just after the<br>
>>Â Â internal RAM in memory, forming one large block from the two RAM<br>
>>Â Â devices.<br>
>> <br>
>> from <a href="https://devel.rtems.org/wiki/TBR/BSP/Ss555" rel="noreferrer" target="_blank">https://devel.rtems.org/wiki/TBR/BSP/Ss555</a><br>
>> <br>
>> but i dont know how to configure the external RAM just after the<br>
>> internal RAM in memory?<br>
>> hope you could give me some guide!<br>
>>Â <br>
>> <br>
> <br>
> Hello Jython,<br>
> <br>
> the documentation you linked is for an MPC. But your subject line<br>
> mentions an STM32. What controller / BSP are you using?<br>
> <br>
> Best regards<br>
> <br>
> Christian Mauderer<br>
> -- <br>
> --------------------------------------------<br>
> embedded brains GmbH<br>
> Herr Christian Mauderer<br>
> Dornierstr. 4<br>
> D-82178 Puchheim<br>
> Germany<br>
> email: <a href="mailto:christian.mauderer@embedded-brains.de" target="_blank">christian.mauderer@embedded-brains.de</a><br>
> Phone: +49-89-18 94 741 - 18<br>
> Fax:Â Â +49-89-18 94 741 - 08<br>
> PGP: Public key available on request.<br>
> <br>
> Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.<br>
> _______________________________________________<br>
> users mailing list<br>
> <a href="mailto:users@rtems.org" target="_blank">users@rtems.org</a><br>
> <a href="http://lists.rtems.org/mailman/listinfo/users" rel="noreferrer" target="_blank">http://lists.rtems.org/mailman/listinfo/users</a><br>
<br>
</blockquote></div>