46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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#include "bootloader.h"
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#include "ch.h"
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#include "hal.h"
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#ifdef STM32_BOOTLOADER_ADDRESS
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/* STM32 */
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#if defined(STM32F0XX)
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/* This code should be checked whether it runs correctly on platforms */
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#define SYMVAL(sym) (uint32_t)(((uint8_t *)&(sym)) - ((uint8_t *)0))
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extern uint32_t __ram0_end__;
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void bootloader_jump(void) {
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*((unsigned long *)(SYMVAL(__ram0_end__) - 4)) = 0xDEADBEEF; // set magic flag => reset handler will jump into boot loader
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NVIC_SystemReset();
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}
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#else /* defined(STM32F0XX) */
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#error Check that the bootloader code works on your platform and add it to bootloader.c!
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#endif /* defined(STM32F0XX) */
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#elif defined(KL2x) || defined(K20x) /* STM32_BOOTLOADER_ADDRESS */
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/* Kinetis */
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#if defined(KIIBOHD_BOOTLOADER)
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/* Kiibohd Bootloader (MCHCK and Infinity KB) */
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#define SCB_AIRCR_VECTKEY_WRITEMAGIC 0x05FA0000
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const uint8_t sys_reset_to_loader_magic[] = "\xff\x00\x7fRESET TO LOADER\x7f\x00\xff";
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void bootloader_jump(void) {
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__builtin_memcpy((void *)VBAT, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic));
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// request reset
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SCB->AIRCR = SCB_AIRCR_VECTKEY_WRITEMAGIC | SCB_AIRCR_SYSRESETREQ_Msk;
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}
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#else /* defined(KIIBOHD_BOOTLOADER) */
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/* Default for Kinetis - expecting an ARM Teensy */
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void bootloader_jump(void) {
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chThdSleepMilliseconds(100);
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__BKPT(0);
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}
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#endif /* defined(KIIBOHD_BOOTLOADER) */
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#else /* neither STM32 nor KINETIS */
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void bootloader_jump(void) {}
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#endif
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