diff options
| -rw-r--r-- | ports/stm32/modmachine.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/ports/stm32/modmachine.c b/ports/stm32/modmachine.c index 3c60378ff..f7b84bae6 100644 --- a/ports/stm32/modmachine.c +++ b/ports/stm32/modmachine.c @@ -30,6 +30,7 @@ #include "modmachine.h" #include "py/gc.h" #include "py/runtime.h" +#include "py/objstr.h" #include "py/mperrno.h" #include "py/mphal.h" #include "extmod/machine_mem.h" @@ -273,6 +274,20 @@ STATIC NORETURN mp_obj_t machine_bootloader(size_t n_args, const mp_obj_t *args) __set_MSP(*(volatile uint32_t*)0x08000000); ((void (*)(uint32_t)) *((volatile uint32_t*)(0x08000000 + 4)))(0x70ad0000); } + + if (n_args == 1 && mp_obj_is_str_or_bytes(args[0])) { + // With a string/bytes given, pass its data to the custom bootloader + size_t len; + const char *data = mp_obj_str_get_data(args[0], &len); + void *mboot_region = (void*)*((volatile uint32_t*)0x08000000); + memmove(mboot_region, data, len); + #if __DCACHE_PRESENT == 1 + SCB_DisableICache(); + SCB_DisableDCache(); + #endif + __set_MSP(*(volatile uint32_t*)0x08000000); + ((void (*)(uint32_t)) *((volatile uint32_t*)(0x08000000 + 4)))(0x70ad0080); + } #endif #if defined(STM32F7) || defined(STM32H7) |