stm32/modmachine: Add ability to pass through user data to mboot.
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@ -30,6 +30,7 @@
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#include "modmachine.h"
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#include "py/gc.h"
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#include "py/runtime.h"
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#include "py/objstr.h"
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#include "py/mperrno.h"
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#include "py/mphal.h"
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#include "extmod/machine_mem.h"
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@ -273,6 +274,20 @@ STATIC NORETURN mp_obj_t machine_bootloader(size_t n_args, const mp_obj_t *args)
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__set_MSP(*(volatile uint32_t*)0x08000000);
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((void (*)(uint32_t)) *((volatile uint32_t*)(0x08000000 + 4)))(0x70ad0000);
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}
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if (n_args == 1 && mp_obj_is_str_or_bytes(args[0])) {
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// With a string/bytes given, pass its data to the custom bootloader
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size_t len;
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const char *data = mp_obj_str_get_data(args[0], &len);
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void *mboot_region = (void*)*((volatile uint32_t*)0x08000000);
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memmove(mboot_region, data, len);
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#if __DCACHE_PRESENT == 1
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SCB_DisableICache();
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SCB_DisableDCache();
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#endif
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__set_MSP(*(volatile uint32_t*)0x08000000);
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((void (*)(uint32_t)) *((volatile uint32_t*)(0x08000000 + 4)))(0x70ad0080);
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}
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#endif
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#if defined(STM32F7) || defined(STM32H7)
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