From: Chris Holgate <chris@zynaptic.com>
To: "ecos-devel@ecos.sourceware.org" <ecos-devel@ecos.sourceware.org>
Subject: Setting up new linker section for DMA bounce buffers (STM32).
Date: Thu, 27 Nov 2008 14:58:00 -0000 [thread overview]
Message-ID: <1227797847.2834.37.camel@hercules.zynaptic.com> (raw)
Hi folks,
I'm in the process of tidying up my STM32 SPI driver code for more
general release. While it all works fine for on-chip memory (my
particular use case), the DMA does not support access to external memory
(generic STM3210E-EVAL). This means that I'll need to add optional
support for DMA bounce buffering via the on-chip SRAM.
I'm sure that this is a problem which must have been addressed on other
platforms. Is there a convention for setting up such a DMA-specific
section in the memory layout files - and are there any existing examples
you can point me to?
Chris.
reply other threads:[~2008-11-27 14:58 UTC|newest]
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