Because NXP MPU's regions are dynamically enabled/disabled, USB device's access maybe restricted when switching out of a task. Background DMA transfers to/from RAM may happen during MPU region reconfiguration or core idling. Enabled USB (Kinetis MPU Master 4) to always have access to RAM address space. Signed-off-by: Andrei Gansari <andrei.gansari@nxp.com> |
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| .. | ||
| cortex_m | ||
| arch.h | ||
| syscall.h | ||