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| author | Arksine <arksine.code@gmail.com> | 2020-04-25 14:20:25 -0400 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2020-05-28 14:44:51 -0400 |
| commit | ab87af90a391e842c3d2e76c7a2dad5d5db0ad5a (patch) | |
| tree | 71c528e511262e05204b4ddc32a2055b5558a888 /src/stm32/stm32f4.c | |
| parent | 380ba2a618ed3ccacc79ded93f44d80cc93a2894 (diff) | |
| download | kutter-ab87af90a391e842c3d2e76c7a2dad5d5db0ad5a.tar.gz kutter-ab87af90a391e842c3d2e76c7a2dad5d5db0ad5a.tar.xz kutter-ab87af90a391e842c3d2e76c7a2dad5d5db0ad5a.zip | |
stm32f4: Add support for HID bootloader
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
Diffstat (limited to 'src/stm32/stm32f4.c')
| -rw-r--r-- | src/stm32/stm32f4.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/stm32/stm32f4.c b/src/stm32/stm32f4.c index f8b5ab2d..9b5433af 100644 --- a/src/stm32/stm32f4.c +++ b/src/stm32/stm32f4.c @@ -98,7 +98,18 @@ void usb_request_bootloader(void) { irq_disable(); - *(uint64_t*)USB_BOOT_FLAG_ADDR = USB_BOOT_FLAG; + if (CONFIG_STM32_FLASH_START_4000) { + // HID Bootloader + RCC->APB1ENR |= RCC_APB1ENR_PWREN; + RCC->APB1ENR; + PWR->CR |= PWR_CR_DBP; + // HID Bootloader magic key + RTC->BKP4R = 0x424C; + PWR->CR &= ~PWR_CR_DBP; + } else { + // System DFU Bootloader + *(uint64_t*)USB_BOOT_FLAG_ADDR = USB_BOOT_FLAG; + } NVIC_SystemReset(); } |