David Sidrane 74e692b3c1 stm32f7:sdmmc invalidate before DMA to avoid eviction overwrite ... For FAT the same buffer is used for read and writes, there is a possibility a cache line is dirty. But the fs is not dirty and will not write the sector to disk. This can be seen https://github.com/PX4/NuttX/pull/175 When the system is busy that cache line can be evicted after the RX DMA has completed and overwrite the data in memory. The solution is to invalidate before the DMA to prevent an evection causing an overwite, and after the DMA it to insure coherency.		2021-12-22 20:44:04 -06:00
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include	arch: Add _wchar_t typedef like other basic types	2021-12-09 16:57:23 +09:00
src	stm32f7:sdmmc invalidate before DMA to avoid eviction overwrite	2021-12-22 20:44:04 -06:00
Kconfig	cortex-m/hardfault: add secure-fault handler	2021-12-21 07:08:13 -06:00