Re: [I] [HELP] SD Card imxrt_dmapreflight: dcache unaligned buffer:0x202458b8 end:0x20245ab7 [nuttx]

[via GitHub]

keever50 commented on issue #16159:
URL: https://github.com/apache/nuttx/issues/16159#issuecomment-2888893396

   > [@keever50](https://github.com/keever50) solution：
   > 
   > CONFIG_FAT_DMAMEMORY=y CONFIG_GRAN=y CONFIG_STM32H7_SDMMC_IDMA=y 
CONFIG_ARMV7M_DCACHE_WRITETHROUGH=n see:armv7m mpu document
   > 
   > in stm32_dmarecvsetup: #if defined(CONFIG_ARCH_HAVE_SDIO_PREFLIGHT) // 
DEBUGASSERT(stm32_dmapreflight(dev, buffer, buflen) == 0); #endif
   > 
   > 
![Image](https://github.com/user-attachments/assets/d64c839e-b01d-40c2-953c-1e68db26c89b)
   
   Thanks!!
   
   I will try this out soon. Likely end of next week. I hope this will improve 
the SD performance


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