a-lunev edited a comment on pull request #3958: URL: https://github.com/apache/incubator-nuttx/pull/3958#issuecomment-865420356
> @a-lunev what are you trying to achieve? Is this similar to the BDMA/SRAM4 heap clobbering issue fixed in [4716fc929d7](https://github.com/apache/incubator-nuttx/commit/4716fc929d74850283120507e84913838e722904) / [PR-3198](https://github.com/apache/incubator-nuttx/pull/3198)? Hi @hartmannathan, Your [PR-3198](https://github.com/apache/incubator-nuttx/pull/3198) is different to my PR. In your PR SRAM4 should be used by BDMA because BDMA allows access only to SRAM4 that was clobbered by the heap and vice versa. In my PR SRAM123 and SRAM4 should not be used by SDMMC1 IDMA because SDMMC1 IDMA does not provide access to SRAM123 and SRAM4 (stm32h7 hardware limitation). SDMMC1 IDMA can access only AXI-SRAM memory region, that is the main part of the heap, and there is not a clobbering issue. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
