Dieter Graef / SDFileSystem

SDFileSystem for STM32F746NG DISCOVERY with 4bit SDMMC interface on fixed pins

Dependencies:   FATFileSystem

Dependents:   DISCO-F746NG_SDFileSystem uzairkhan DISCO-F746NG_Scope_copy

Fork of SDFileSystem by Neil Thiessen

Diff: SDFileSystem.cpp

Revision:
26:8f15aa3b052b
Parent:
25:391eade4ef85
Child:
27:8d192c180436
--- a/SDFileSystem.cpp	Tue Apr 12 18:16:24 2016 +0000
+++ b/SDFileSystem.cpp	Wed Apr 13 08:51:27 2016 +0000
@@ -204,6 +204,7 @@
     //Read a single block, or multiple blocks
     if (count > 1) {
         BSP_SD_Set_RX_Busy();
+        SCB_InvalidateDCache_by_Addr((uint32_t *)buffer,(512*count));
         retval=BSP_SD_ReadBlocks_DMA((uint32_t *)buffer, (uint64_t) (sector * 512),512, count);
         while((BSP_SD_Get_RX_Busy()==1)&&(retval==MSD_OK)){;}
         CPU_CACHE_Flush((uint32_t *)buffer,(512*count));
@@ -211,6 +212,7 @@
         return (retval ? RES_ERROR : RES_OK);
     } else {
         BSP_SD_Set_RX_Busy();
+        SCB_InvalidateDCache_by_Addr((uint32_t *)buffer,(512));
         retval= BSP_SD_ReadBlocks_DMA((uint32_t *)buffer, (uint64_t) (sector * 512), 512, 1);
         while((BSP_SD_Get_RX_Busy()==1)&&(retval==MSD_OK)){;}
         CPU_CACHE_Flush((uint32_t *)buffer,(512));