diff options
Diffstat (limited to 'os/hal')
| -rw-r--r-- | os/hal/ports/STM32/STM32F7xx/hal_lld.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/os/hal/ports/STM32/STM32F7xx/hal_lld.c b/os/hal/ports/STM32/STM32F7xx/hal_lld.c index 4144cab73..1c2c2e364 100644 --- a/os/hal/ports/STM32/STM32F7xx/hal_lld.c +++ b/os/hal/ports/STM32/STM32F7xx/hal_lld.c @@ -133,13 +133,15 @@ void hal_lld_init(void) { /* If the DMA is in use then the DMA-accessible RAM must be programmed as
Write Through using the MPU, region zero is used with a size of 512kB,
the sub-regions are programmed as follow:
- - 0..4, enabled, it is the normal, DMA-accessible, RAM.
+ - 0,, disabled, it is the normal the DTCM RAM.
+ - 1..4, enabled, it is the normal, DMA-accessible, RAM.
- 5..7, disabled, beyond RAM area.
The system memory layout is used as "background" for the MPU regions.*/
mpuConfigureRegion(MPU_REGION_0,
0x20000000U,
MPU_RASR_ATTR_AP_RW_RW |
MPU_RASR_ATTR_CACHEABLE_WT_NWA |
+ MPU_RNR_REGION(1) |
MPU_RNR_REGION(5) |
MPU_RNR_REGION(6) |
MPU_RNR_REGION(7) |
|