STM32F746G‑DISCO | SDMMC + DMA + D‑Cache – hangs at state 5, FR_DISK_ERR / empty files → root‑cause & minimal fixes
Subject: STM32F746G‑DISCO | SDMMC + DMA + D‑Cache – hangs at state 5, FR_DISK_ERR / empty files → root‑cause & minimal fixesCube / HAL versionsCubeF7: v1.28.0CubeMX: 6.11Board: STM32F746G‑DISCOMiddleware: FatFs R0.14, _USE_LFN = 3, _MAX_SS = 512Cache...