diff options
| -rw-r--r-- | ports/stm32/modmachine.c | 16 | ||||
| -rw-r--r-- | ports/stm32/modmachine.h | 2 |
2 files changed, 15 insertions, 3 deletions
diff --git a/ports/stm32/modmachine.c b/ports/stm32/modmachine.c index e14753bfe..3c60378ff 100644 --- a/ports/stm32/modmachine.c +++ b/ports/stm32/modmachine.c @@ -247,7 +247,7 @@ STATIC mp_obj_t machine_soft_reset(void) { MP_DEFINE_CONST_FUN_OBJ_0(machine_soft_reset_obj, machine_soft_reset); // Activate the bootloader without BOOT* pins. -STATIC NORETURN mp_obj_t machine_bootloader(void) { +STATIC NORETURN mp_obj_t machine_bootloader(size_t n_args, const mp_obj_t *args) { #if MICROPY_HW_ENABLE_USB pyb_usb_dev_deinit(); #endif @@ -263,6 +263,18 @@ STATIC NORETURN mp_obj_t machine_bootloader(void) { HAL_MPU_Disable(); #endif + #if MICROPY_HW_USES_BOOTLOADER + if (n_args == 0 || !mp_obj_is_true(args[0])) { + // By default, with no args given, we enter the custom bootloader (mboot) + #if __DCACHE_PRESENT == 1 + SCB_DisableICache(); + SCB_DisableDCache(); + #endif + __set_MSP(*(volatile uint32_t*)0x08000000); + ((void (*)(uint32_t)) *((volatile uint32_t*)(0x08000000 + 4)))(0x70ad0000); + } + #endif + #if defined(STM32F7) || defined(STM32H7) // arm-none-eabi-gcc 4.9.0 does not correctly inline this // MSP function, so we write it out explicitly here. @@ -283,7 +295,7 @@ STATIC NORETURN mp_obj_t machine_bootloader(void) { while (1); } -MP_DEFINE_CONST_FUN_OBJ_0(machine_bootloader_obj, machine_bootloader); +MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_bootloader_obj, 0, 1, machine_bootloader); // get or set the MCU frequencies STATIC mp_obj_t machine_freq(size_t n_args, const mp_obj_t *args) { diff --git a/ports/stm32/modmachine.h b/ports/stm32/modmachine.h index f105bbeec..414e5b37c 100644 --- a/ports/stm32/modmachine.h +++ b/ports/stm32/modmachine.h @@ -34,7 +34,7 @@ void machine_deinit(void); MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_info_obj); MP_DECLARE_CONST_FUN_OBJ_0(machine_unique_id_obj); MP_DECLARE_CONST_FUN_OBJ_0(machine_reset_obj); -MP_DECLARE_CONST_FUN_OBJ_0(machine_bootloader_obj); +MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_bootloader_obj); MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_freq_obj); MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_lightsleep_obj); MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_deepsleep_obj); |