diff options
| -rw-r--r-- | src/stm32/stm32h7.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/stm32/stm32h7.c b/src/stm32/stm32h7.c index 4f9ec68c..43b7aa6e 100644 --- a/src/stm32/stm32h7.c +++ b/src/stm32/stm32h7.c @@ -216,8 +216,9 @@ static void usb_reboot_for_dfu_bootloader(void) { irq_disable(); - SCB_DisableDCache(); - *(uint64_t*)USB_BOOT_FLAG_ADDR = USB_BOOT_FLAG; + uint64_t *bflag = (void*)USB_BOOT_FLAG_ADDR; + *bflag = USB_BOOT_FLAG; + SCB_CleanDCache_by_Addr((void*)bflag, sizeof(*bflag)); NVIC_SystemReset(); } |