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stm32/modmachine: Make bootloader() enter custom loader if it's enabled.

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If a custom bootloader is enabled (eg mboot) then machine.bootloader() will
now enter that loader.  To get the original ST DFU loader pass any argument
to the function, like machine.bootloader(1).
This commit is contained in:
Damien George
2019-02-07 16:13:57 +11:00
parent ab423f2969
commit b26046aca2
2 changed files with 15 additions and 3 deletions
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16
ports/stm32/modmachine.c
View File

@@ -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) {

2
ports/stm32/modmachine.h
View File

@@ -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);