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initial check in based on SVN revision 575

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Brent Perteet
2025-05-14 12:57:39 -05:00
commit a3ef12e24a
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source/Loader/iap_jump.c Normal file
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/*
* iap_jump.c
*
* Created on: Oct 23, 2023
* Author: Warner
*/
#include <Loader/iap_jump.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "LPC54114_cm4.h"
/*******************************************************************************
* Definitions
******************************************************************************/
typedef void (*IAP_JumpFun)(void);
/*******************************************************************************
* Variables
******************************************************************************/
/*******************************************************************************
* Static Function Declarations
******************************************************************************/
/*******************************************************************************
* Static Functions
******************************************************************************/
/*******************************************************************************
* Public Functions
******************************************************************************/
#if 0
void IAP_JumpToAPP(uint32_t applicationAddress, uint32_t stackPointer){
/* Static variables are needed as we need to ensure the values we are using are not stored on the
previous stack */
static uint32_t s_stackPointer = 0;
s_stackPointer = stackPointer;
static void (*farewellBootloader)(void) = 0;
farewellBootloader = (void (*)(void))applicationAddress;
/* Set the VTOR to the application vector table address */
SCB->VTOR = applicationAddress;
/* Set stack pointers to the application stack pointer */
__set_MSP(s_stackPointer);
__set_PSP(s_stackPointer);
/* Jump to the application */
farewellBootloader();
}
#endif
void IAP_JumpToApp(uint32_t app_addr){
/* Static variables are needed as we need to ensure the values we are using are not stored on the
previous stack */
static uint32_t s_stackPointer = 0;
s_stackPointer = app_addr;
IAP_JumpFun JumpToApp;
JumpToApp=(IAP_JumpFun)*(uint32_t*)(app_addr+4);
/* Set the VTOR to the application vector table address */
SCB->VTOR = app_addr;
/* Set stack pointers to the application stack pointer */
__set_MSP(*(uint32_t*)s_stackPointer);
__set_PSP(*(uint32_t*)s_stackPointer);
/* Jump to the application */
JumpToApp();
}