[信息] LAT1604 STM32H5 STiRoT OEMuRoT之初体验

/** 

* [url=/u/brief]@brief[/url]  Perform Jump to the BootLoader 

* @retval None. 

*/ 

void LOADER_Run(void) 

{ 

printf("\r\n  Start config before jumping to the bootloader"); 

SECURE_loader_cfg(); 

for (int i = 0; i < 16; i++) 

{ 

/*SRAM1 -> MPCBB1*/ 

GTZC_MPCBB1_NS->SECCFGR[i] = 0;

  } 

  uint32_t boot_address = *(uint32_t *)(BOOTLOADER_BASE_NS + 4U); 

 

  /*Increment HDPL to HDPL=3*/ 

  SET_BIT(SBS->HDPLCR,  SBS_HDPLCR_INCR_HDPL); 

 

  /*  change stack limit  */ 

  __set_MSPLIM(0); 

 

  __set_MSP((*(uint32_t *)BOOTLOADER_BASE_NS)); 

 

  SCB->VTOR = BOOTLOADER_BASE_NS; 

 

  printf("\r\n  Standard Bootloader started"); 

  printf("\r\n  If you want to connect through USART interface, disconnect 

your TeraTerm"); 

  printf("\r\n  Start download with STM32CubeProgrammer through 

supported interfaces (USART/SPI/I2C/USB)\r\n"); 

  printf("\r\n"); 

 

  __asm volatile("movs r0, %0\n" 

               "bx r0\n" :: "r"(boot_address)); /*jump to non-secure address*/ 

}

#if defined(MCUBOOT_EXT_LOADER) 

/** 

  * @brief This function manage the jump to boot loader application. 

  * [url=/u/NOTE]@NOTE[/url] 

  * @retval void 

  */ 

void boot_platform_noimage(void)

{ 

  uint32_t rsslib_sec_jump_HDP_lvl3ns; 

 

  BOOT_LOG_INF("Jumping to bootloader"); 

  BOOT_LOG_INF("Disconnect COM port if used by bootloader"); 

 

  /* Init RSS jump function descriptor */ 

  rsslib_sec_jump_HDP_lvl3ns = (uint32_t)(Rss_lib_p->S.JumpHDPLvl3NS); 

 

  /* Check Flow control */ 

  FLOW_CONTROL_CHECK(uFlowProtectValue, FLOW_CTRL_STAGE_2); 

  uFlowStage = FLOW_STAGE_CFG; 

 

  /* Update run time protections for application execution */ 

  LL_SECU_UpdateLoaderRunTimeProtections(); 

 

 

  /* Check Flow control */ 

  FLOW_CONTROL_CHECK(uFlowProtectValue, FLOW_CTRL_STAGE_3_L); 

  uFlowStage = FLOW_STAGE_CHK; 

 

  /* Second function call to resist to basic hardware attacks */ 

  LL_SECU_UpdateLoaderRunTimeProtections(); 

 

 

  /* Check Flow control */ 

  FLOW_CONTROL_CHECK(uFlowProtectValue, FLOW_CTRL_STAGE_4_L); 

 

  /* Jump into BL through RSS */ 

  /* last parameter (0U) not used in 

RSSLIB_Sec_JumpHDPL3NS(BOOTLOADER_BASE_NS); */ 

  boot_jump_to_RSS((uint32_t)&boot_jump_to_RSS, 

rsslib_sec_jump_HDP_lvl3ns, (uint32_t) BOOTLOADER_BASE_NS, 0U); 

 

  /* Avoid compiler to pop registers after having changed MSP */ 

#if !defined(__ICCARM__) 

  __builtin_unreachable();

#else 

while (1); 

#endif /* defined(__ICCARM__) */ 

} 

#endif /* MCUBOOT_EXT_LOADER */