};
#endif
+void enter_bootloader_mode_if_requested(void);
+
/**
* @brief Early initialization code.
* @details This initialization must be performed just after stack setup
* and before any other initialization.
*/
void __early_init(void) {
-
+ enter_bootloader_mode_if_requested();
stm32_clock_init();
}
/*
* USB bus activation macro, required by the USB driver.
*/
-// #define usb_lld_connect_bus(usbp)
+// #define usb_lld_connect_bus(usbp)
#define usb_lld_connect_bus(usbp) (palSetPadMode(GPIOA, GPIOA_USB_DP, PAL_MODE_ALTERNATE(14)))
// #define usb_lld_connect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_INPUT)
/*
* USB bus de-activation macro, required by the USB driver.
*/
// #define usb_lld_disconnect_bus(usbp)
-#define usb_lld_disconnect_bus(usbp) (palSetPadMode(GPIOA, GPIOA_USB_DP, PAL_MODE_OUTPUT_PUSHPULL))
+#define usb_lld_disconnect_bus(usbp) (palSetPadMode(GPIOA, GPIOA_USB_DP, PAL_MODE_OUTPUT_PUSHPULL)); palClearPad(GPIOA, GPIOA_USB_DP)
// #define usb_lld_disconnect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_OUTPUT_PUSHPULL); palClearPad(GPIOA, 12)
#if !defined(_FROM_ASM_)
#ifdef STM32_BOOTLOADER_ADDRESS
/* STM32 */
-#if defined(STM32F0XX)
/* This code should be checked whether it runs correctly on platforms */
#define SYMVAL(sym) (uint32_t)(((uint8_t *)&(sym)) - ((uint8_t *)0))
extern uint32_t __ram0_end__;
+#define BOOTLOADER_MAGIC 0xDEADBEEF
+#define MAGIC_ADDR (unsigned long*)(SYMVAL(__ram0_end__) - 4)
-void bootloader_jump(void) {
- *((unsigned long *)(SYMVAL(__ram0_end__) - 4)) = 0xDEADBEEF; // set magic flag => reset handler will jump into boot loader
- NVIC_SystemReset();
-}
-
-#elif defined(STM32F3XX)
-/* This code should be checked whether it runs correctly on platforms.
- * It was added for clueboard60 BUT HAS NOT BEEN TESTED.
- * FIXME - Test this
- */
-#define SYMVAL(sym) (uint32_t)(((uint8_t *)&(sym)) - ((uint8_t *)0))
-extern uint32_t __ram0_end__;
void bootloader_jump(void) {
- *((unsigned long *)(SYMVAL(__ram0_end__) - 4)) = 0xDEADBEEF; // set magic flag => reset handler will jump into boot loader
+ *MAGIC_ADDR = BOOTLOADER_MAGIC; // set magic flag => reset handler will jump into boot loader
NVIC_SystemReset();
}
-#else /* defined(STM32F0XX) */
-#error Check that the bootloader code works on your platform and add it to bootloader.c!
-#endif /* defined(STM32F0XX) */
+void enter_bootloader_mode_if_requested(void) {
+ unsigned long* check = MAGIC_ADDR;
+ if(*check == BOOTLOADER_MAGIC) {
+ *check = 0;
+ __set_CONTROL(0);
+ __set_MSP(*(__IO uint32_t*)STM32_BOOTLOADER_ADDRESS);
+ __enable_irq();
+
+ typedef void (*BootJump_t)(void);
+ BootJump_t boot_jump = *(BootJump_t*)(STM32_BOOTLOADER_ADDRESS + 4);
+ boot_jump();
+ while(1);
+ }
+ }
#elif defined(KL2x) || defined(K20x) /* STM32_BOOTLOADER_ADDRESS */
/* Kinetis */