在做bootloader项目中，在void _c_int00(void)函数中调用_copyAPI2RAM_()，一直卡在这里无法到达main函数。在通过屏蔽代码测试，发现只要调用void sciInit(void)就一直出现上述问题，关掉就不会出现。
sys_link.cmd
/*----------------------------------------------------------------------------*/
/* Memory Map */
MEMORY
{
VECTORS (X) : origin=0x00000000 length=0x00000020
FLASH_API (RX) : origin=0x00000020 length=0x000014E0
FLASH0 (RX) : origin=0x00001500 length=0x00180000-0x00001500
// FLASH1 (RX) : origin=0x00180000 length=0x00180000
STACKS (RW) : origin=0x08000000 length=0x00001500
RAM (RW) : origin=0x08001500 length=0x0003EB00
/* USER CODE BEGIN (2) */
/* USER CODE END */
}
/* USER CODE BEGIN (3) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
/* Section Configuration */
SECTIONS
{
.intvecs : {} > VECTORS
flashAPI :
{
..\Debug\F021\source\Fapi_UserDefinedFunctions.obj (.text)
..\Debug\F021\source\bl_flash.obj (.text)
--library=..\F021\F021_API_CortexR4_BE.lib < FlashStateMachine.IssueFsmCommand.obj
FlashStateMachine.SetActiveBank.obj
FlashStateMachine.InitializeFlashBanks.obj
FlashStateMachine.EnableMainSectors.obj
FlashStateMachine.IssueFsmCommand.obj
FlashStateMachine.ScaleFclk.obj
Init.obj
Utilities.CalculateEcc.obj
Utilities.WaitDelay.obj
Utilities.CalculateFletcher.obj
Read.MarginByByte.obj
Read.Common.obj
Read.FlushPipeline.obj
Read.WdService.obj
Async.WithAddress.obj
Program.obj > (.text)
} load = FLASH_API, run = RAM, LOAD_START(api_load), RUN_START(api_run), SIZE(api_size)
.text : {} > FLASH0
.const : {} > FLASH0
.cinit : {} > FLASH0
.pinit : {} > FLASH0
// .text : {} > FLASH0 | FLASH1
// .const : {} > FLASH0 | FLASH1
// .cinit : {} > FLASH0 | FLASH1
// .pinit : {} > FLASH0 | FLASH1
.bss : {} > RAM
.data : {} > RAM
.sysmem : {} > RAM
/* USER CODE BEGIN (4) */
/* USER CODE END */
}
sys_core.asm
-------------------------------------------------------------------------------
; Copy the Flash API from flash to SRAM.
;
.def _copyAPI2RAM_
.asmfunc
_copyAPI2RAM_
.ref api_load
flash_load .word api_load
.ref api_run
flash_run .word api_run
.ref api_size
flash_size .word api_size
ldr r0, flash_load
ldr r1, flash_run
ldr r2, flash_size
add r2, r1, r2
copy_loop1:
ldr r3, [r0], #4
str r3, [r1], #4
cmp r1, r2
blt copy_loop1
bx lr
.endasmfunc
;-------------------------------------------------------------------------------
sys_startup.c
/* SourceId : STARTUP_SourceId_001 */
/* DesignId : STARTUP_DesignId_001 */
/* Requirements : HL_SR508 */
void _c_int00(void)
{
/* USER CODE BEGIN (5) */
/* USER CODE END */
/* Initialize Core Registers to avoid CCM Error */
_coreInitRegisters_();
/* USER CODE BEGIN (6) */
/* USER CODE END */
/* Initialize Stack Pointers */
_coreInitStackPointer_();
/* USER CODE BEGIN (7) */
/* USER CODE END */
/* Work Around for Errata DEVICE#140: ( Only on Rev A silicon)
*
* Errata Description:
* The Core Compare Module(CCM-R4) may cause nERROR to be asserted after a cold power-on
* Workaround:
* Clear ESM Group2 Channel 2 error in ESMSR2 and Compare error in CCMSR register */
if (DEVICE_ID_REV == 0x802AAD05U)
{
_esmCcmErrorsClear_();
}
/* USER CODE BEGIN (8) */
/* USER CODE END */
/* Enable CPU Event Export */
/* This allows the CPU to signal any single-bit or double-bit errors detected
* by its ECC logic for accesses to program flash or data RAM.
*/
_coreEnableEventBusExport_();
/* USER CODE BEGIN (9) */
/* USER CODE END */
/* Enable response to ECC errors indicated by CPU for accesses to flash */
flashWREG->FEDACCTRL1 = 0x000A060AU;
/* USER CODE BEGIN (10) */
/* USER CODE END */
/* Enable CPU ECC checking for ATCM (flash accesses) */
_coreEnableFlashEcc_();
/* USER CODE BEGIN (11) */
/* USER CODE END */
/* Workaround for Errata CORTEXR4 66 */
_errata_CORTEXR4_66_();
/* Workaround for Errata CORTEXR4 57 */
_errata_CORTEXR4_57_();
/* Reset handler: the following instructions read from the system exception status register
* to identify the cause of the CPU reset.
*/
/* check for power-on reset condition */
/*SAFETYMCUSW 139 S MR:13.7 <APPROVED> "Hardware status bit read check" */
if ((SYS_EXCEPTION & POWERON_RESET) != 0U)
{
/* USER CODE BEGIN (12) */
/* USER CODE END */
/* clear all reset status flags */
SYS_EXCEPTION = 0xFFFFU;
/* USER CODE BEGIN (13) */
/* USER CODE END */
/* USER CODE BEGIN (14) */
/* USER CODE END */
/* USER CODE BEGIN (15) */
/* USER CODE END */
/* continue with normal start-up sequence */
}
/*SAFETYMCUSW 139 S MR:13.7 <APPROVED> "Hardware status bit read check" */
else if ((SYS_EXCEPTION & OSC_FAILURE_RESET) != 0U)
{
/* Reset caused due to oscillator failure.
Add user code here to handle oscillator failure */
/* USER CODE BEGIN (16) */
/* USER CODE END */
}
/*SAFETYMCUSW 139 S MR:13.7 <APPROVED> "Hardware status bit read check" */
else if ((SYS_EXCEPTION & WATCHDOG_RESET) !=0U)
{
/* Reset caused due
* 1) windowed watchdog violation - Add user code here to handle watchdog violation.
* 2) ICEPICK Reset - After loading code via CCS / System Reset through CCS
*/
/* Check the WatchDog Status register */
if(WATCHDOG_STATUS != 0U)
{
/* Add user code here to handle watchdog violation. */
/* USER CODE BEGIN (17) */
/* USER CODE END */
/* Clear the Watchdog reset flag in Exception Status register */
SYS_EXCEPTION = WATCHDOG_RESET;
/* USER CODE BEGIN (18) */
/* USER CODE END */
}
else
{
/* Clear the ICEPICK reset flag in Exception Status register */
SYS_EXCEPTION = ICEPICK_RESET;
/* USER CODE BEGIN (19) */
/* USER CODE END */
}
}
/*SAFETYMCUSW 139 S MR:13.7 <APPROVED> "Hardware status bit read check" */
else if ((SYS_EXCEPTION & CPU_RESET) !=0U)
{
/* Reset caused due to CPU reset.
CPU reset can be caused by CPU self-test completion, or
by toggling the "CPU RESET" bit of the CPU Reset Control Register. */
/* USER CODE BEGIN (20) */
/* USER CODE END */
/* clear all reset status flags */
SYS_EXCEPTION = CPU_RESET;
/* USER CODE BEGIN (21) */
/* USER CODE END */
}
/*SAFETYMCUSW 139 S MR:13.7 <APPROVED> "Hardware status bit read check" */
else if ((SYS_EXCEPTION & SW_RESET) != 0U)
{
/* Reset caused due to software reset.
Add user code to handle software reset. */
/* USER CODE BEGIN (22) */
/* USER CODE END */
}
else
{
/* Reset caused by nRST being driven low externally.
Add user code to handle external reset. */
/* USER CODE BEGIN (23) */
/* USER CODE END */
}
/* Check if there were ESM group3 errors during power-up.
* These could occur during eFuse auto-load or during reads from flash OTP
* during power-up. Device operation is not reliable and not recommended
* in this case.
* An ESM group3 error only drives the nERROR pin low. An external circuit
* that monitors the nERROR pin must take the appropriate action to ensure that
* the system is placed in a safe state, as determined by the application.
*/
if ((esmREG->SR1[2]) != 0U)
{
/* USER CODE BEGIN (24) */
/* USER CODE END */
/*SAFETYMCUSW 5 C MR:NA <APPROVED> "for(;;) can be removed by adding "# if 0" and "# endif" in the user codes above and below" */
/*SAFETYMCUSW 26 S MR:NA <APPROVED> "for(;;) can be removed by adding "# if 0" and "# endif" in the user codes above and below" */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "for(;;) can be removed by adding "# if 0" and "# endif" in the user codes above and below" */
// for(;;)
// {
// }/* Wait */
/* USER CODE BEGIN (25) */
/* USER CODE END */
}
/* USER CODE BEGIN (26) */
/* USER CODE END */
/* Initialize System - Clock, Flash settings with Efuse self check */
systemInit();
/* Workaround for Errata PBIST#4 */
errata_PBIST_4();
/* Run a diagnostic check on the memory self-test controller.
* This function chooses a RAM test algorithm and runs it on an on-chip ROM.
* The memory self-test is expected to fail. The function ensures that the PBIST controller
* is capable of detecting and indicating a memory self-test failure.
*/
pbistSelfCheck();
/* Run PBIST on STC ROM */
pbistRun((uint32)STC_ROM_PBIST_RAM_GROUP,
((uint32)PBIST_TripleReadSlow | (uint32)PBIST_TripleReadFast));
/* Wait for PBIST for STC ROM to be completed */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "Hardware status bit read check" */
while(pbistIsTestCompleted() != TRUE)
{
}/* Wait */
/* Check if PBIST on STC ROM passed the self-test */
if( pbistIsTestPassed() != TRUE)
{
/* PBIST and STC ROM failed the self-test.
* Need custom handler to check the memory failure
* and to take the appropriate next step.
*/
pbistFail();
}
/* Disable PBIST clocks and disable memory self-test mode */
pbistStop();
/* Run PBIST on PBIST ROM */
pbistRun((uint32)PBIST_ROM_PBIST_RAM_GROUP,
((uint32)PBIST_TripleReadSlow | (uint32)PBIST_TripleReadFast));
/* Wait for PBIST for PBIST ROM to be completed */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "Hardware status bit read check" */
while(pbistIsTestCompleted() != TRUE)
{
}/* Wait */
/* Check if PBIST ROM passed the self-test */
if( pbistIsTestPassed() != TRUE)
{
/* PBIST and STC ROM failed the self-test.
* Need custom handler to check the memory failure
* and to take the appropriate next step.
*/
pbistFail();
}
/* Disable PBIST clocks and disable memory self-test mode */
pbistStop();
/* USER CODE BEGIN (29) */
/* USER CODE END */
/* USER CODE BEGIN (31) */
/* USER CODE END */
/* Disable RAM ECC before doing PBIST for Main RAM */
_coreDisableRamEcc_();
/* Run PBIST on CPU RAM.
* The PBIST controller needs to be configured separately for single-port and dual-port SRAMs.
* The CPU RAM is a single-port memory. The actual "RAM Group" for all on-chip SRAMs is defined in the
* device datasheet.
*/
pbistRun(0x08300020U, /* ESRAM Single Port PBIST */
(uint32)PBIST_March13N_SP);
/* USER CODE BEGIN (32) */
/* USER CODE END */
/* Wait for PBIST for CPU RAM to be completed */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "Hardware status bit read check" */
while(pbistIsTestCompleted() != TRUE)
{
}/* Wait */
/* USER CODE BEGIN (33) */
/* USER CODE END */
/* Check if CPU RAM passed the self-test */
if( pbistIsTestPassed() != TRUE)
{
/* CPU RAM failed the self-test.
* Need custom handler to check the memory failure
* and to take the appropriate next step.
*/
/* USER CODE BEGIN (34) */
/* USER CODE END */
pbistFail();
/* USER CODE BEGIN (35) */
/* USER CODE END */
}
/* USER CODE BEGIN (36) */
/* USER CODE END */
/* Disable PBIST clocks and disable memory self-test mode */
pbistStop();
/* USER CODE BEGIN (37) */
/* USER CODE END */
/* Initialize CPU RAM.
* This function uses the system module's hardware for auto-initialization of memories and their
* associated protection schemes. The CPU RAM is initialized by setting bit 0 of the MSIENA register.
* Hence the value 0x1 passed to the function.
* This function will initialize the entire CPU RAM and the corresponding ECC locations.
*/
memoryInit(0x1U);
/* USER CODE BEGIN (38) */
/* USER CODE END */
/* Enable ECC checking for TCRAM accesses.
* This function enables the CPU's ECC logic for accesses to B0TCM and B1TCM.
*/
_coreEnableRamEcc_();
/* USER CODE BEGIN (39) */
/* USER CODE END */
/* Start PBIST on all dual-port memories */
/* NOTE : Please Refer DEVICE DATASHEET for the list of Supported Dual port Memories.
PBIST test performed only on the user selected memories in HALCoGen's GUI SAFETY INIT tab.
*/
pbistRun( (uint32)0x00000000U /* EMAC RAM */
| (uint32)0x00000000U /* USB RAM */
| (uint32)0x00000800U /* DMA RAM */
| (uint32)0x00000200U /* VIM RAM */
| (uint32)0x00000040U /* MIBSPI1 RAM */
| (uint32)0x00000080U /* MIBSPI3 RAM */
| (uint32)0x00000100U /* MIBSPI5 RAM */
| (uint32)0x00000004U /* CAN1 RAM */
| (uint32)0x00000008U /* CAN2 RAM */
| (uint32)0x00000010U /* CAN3 RAM */
| (uint32)0x00000400U /* ADC1 RAM */
| (uint32)0x00020000U /* ADC2 RAM */
| (uint32)0x00001000U /* HET1 RAM */
| (uint32)0x00040000U /* HET2 RAM */
| (uint32)0x00002000U /* HTU1 RAM */
| (uint32)0x00080000U /* HTU2 RAM */
| (uint32)0x00004000U /* RTP RAM */
| (uint32)0x00008000U /* FRAY RAM */
,(uint32) PBIST_March13N_DP);
/* USER CODE BEGIN (40) */
/* USER CODE END */
/* Test the CPU ECC mechanism for RAM accesses.
* The checkBxRAMECC functions cause deliberate single-bit and double-bit errors in TCRAM accesses
* by corrupting 1 or 2 bits in the ECC. Reading from the TCRAM location with a 2-bit error
* in the ECC causes a data abort exception. The data abort handler is written to look for
* deliberately caused exception and to return the code execution to the instruction
* following the one that caused the abort.
*/
checkRAMECC();
/* USER CODE BEGIN (41) */
/* USER CODE END */
/* USER CODE BEGIN (43) */
/* USER CODE END */
/* Wait for PBIST for CPU RAM to be completed */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "Hardware status bit read check" */
while(pbistIsTestCompleted() != TRUE)
{
}/* Wait */
/* USER CODE BEGIN (44) */
/* USER CODE END */
/* Check if CPU RAM passed the self-test */
if( pbistIsTestPassed() != TRUE)
{
/* USER CODE BEGIN (45) */
/* USER CODE END */
/* CPU RAM failed the self-test.
* Need custom handler to check the memory failure
* and to take the appropriate next step.
*/
/* USER CODE BEGIN (46) */
/* USER CODE END */
pbistFail();
/* USER CODE BEGIN (47) */
/* USER CODE END */
}
/* USER CODE BEGIN (48) */
/* USER CODE END */
/* Disable PBIST clocks and disable memory self-test mode */
pbistStop();
/* USER CODE BEGIN (55) */
/* USER CODE END */
/* Release the MibSPI1 modules from local reset.
* This will cause the MibSPI1 RAMs to get initialized along with the parity memory.
*/
mibspiREG1->GCR0 = 0x1U;
/* Release the MibSPI3 modules from local reset.
* This will cause the MibSPI3 RAMs to get initialized along with the parity memory.
*/
mibspiREG3->GCR0 = 0x1U;
/* Release the MibSPI5 modules from local reset.
* This will cause the MibSPI5 RAMs to get initialized along with the parity memory.
*/
mibspiREG5->GCR0 = 0x1U;
/* USER CODE BEGIN (56) */
/* USER CODE END */
/* Enable parity on selected RAMs */
enableParity();
/* Initialize all on-chip SRAMs except for MibSPIx RAMs
* The MibSPIx modules have their own auto-initialization mechanism which is triggered
* as soon as the modules are brought out of local reset.
*/
/* The system module auto-init will hang on the MibSPI RAM if the module is still in local reset.
*/
/* NOTE : Please Refer DEVICE DATASHEET for the list of Supported Memories and their channel numbers.
Memory Initialization is perfomed only on the user selected memories in HALCoGen's GUI SAFETY INIT tab.
*/
memoryInit( (uint32)((uint32)1U << 1U) /* DMA RAM */
| (uint32)((uint32)1U << 2U) /* VIM RAM */
| (uint32)((uint32)1U << 5U) /* CAN1 RAM */
| (uint32)((uint32)1U << 6U) /* CAN2 RAM */
| (uint32)((uint32)1U << 10U) /* CAN3 RAM */
| (uint32)((uint32)1U << 8U) /* ADC1 RAM */
| (uint32)((uint32)1U << 14U) /* ADC2 RAM */
| (uint32)((uint32)1U << 3U) /* HET1 RAM */
| (uint32)((uint32)1U << 4U) /* HTU1 RAM */
| (uint32)((uint32)1U << 15U) /* HET2 RAM */
| (uint32)((uint32)1U << 16U) /* HTU2 RAM */
);
/* Disable parity */
disableParity();
/* Test the parity protection mechanism for peripheral RAMs
NOTE : Please Refer DEVICE DATASHEET for the list of Supported Memories with parity.
Parity Self check is perfomed only on the user selected memories in HALCoGen's GUI SAFETY INIT tab.
*/
/* USER CODE BEGIN (57) */
/* USER CODE END */
het1ParityCheck();
/* USER CODE BEGIN (58) */
/* USER CODE END */
htu1ParityCheck();
/* USER CODE BEGIN (59) */
/* USER CODE END */
het2ParityCheck();
/* USER CODE BEGIN (60) */
/* USER CODE END */
htu2ParityCheck();
/* USER CODE BEGIN (61) */
/* USER CODE END */
adc1ParityCheck();
/* USER CODE BEGIN (62) */
/* USER CODE END */
adc2ParityCheck();
/* USER CODE BEGIN (63) */
/* USER CODE END */
can1ParityCheck();
/* USER CODE BEGIN (64) */
/* USER CODE END */
can2ParityCheck();
/* USER CODE BEGIN (65) */
/* USER CODE END */
can3ParityCheck();
/* USER CODE BEGIN (66) */
/* USER CODE END */
vimParityCheck();
/* USER CODE BEGIN (67) */
/* USER CODE END */
dmaParityCheck();
/* USER CODE BEGIN (68) */
/* USER CODE END */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "Hardware status bit read check" */
while ((mibspiREG1->FLG & 0x01000000U) == 0x01000000U)
{
}/* Wait */
/* wait for MibSPI1 RAM to complete initialization */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "Hardware status bit read check" */
while ((mibspiREG3->FLG & 0x01000000U) == 0x01000000U)
{
}/* Wait */
/* wait for MibSPI3 RAM to complete initialization */
/*SAFETYMCUSW 28 D MR:NA <APPROVED> "Hardware status bit read check" */
while ((mibspiREG5->FLG & 0x01000000U) == 0x01000000U)
{
}/* Wait */
/* wait for MibSPI5 RAM to complete initialization */
/* USER CODE BEGIN (69) */
/* USER CODE END */
mibspi1ParityCheck();
/* USER CODE BEGIN (70) */
/* USER CODE END */
mibspi3ParityCheck();
/* USER CODE BEGIN (71) */
/* USER CODE END */
mibspi5ParityCheck();
/* USER CODE BEGIN (72) */
/* USER CODE END */
/* Enable IRQ offset via Vic controller */
_coreEnableIrqVicOffset_();
/* USER CODE BEGIN (73) */
/* USER CODE END */
/* Initialize VIM table */
vimInit();
/* USER CODE BEGIN (74) */
/* USER CODE END */
/* Configure system response to error conditions signaled to the ESM group1 */
/* This function can be configured from the ESM tab of HALCoGen */
esmInit();
/* initialize copy table */
__TI_auto_init();
/* USER CODE BEGIN (75) */
_copyAPI2RAM_();
/* USER CODE END */
/* call the application */
/*SAFETYMCUSW 296 S MR:8.6 <APPROVED> "Startup code(library functions at block scope)" */
/*SAFETYMCUSW 326 S MR:8.2 <APPROVED> "Startup code(Declaration for main in library)" */
/*SAFETYMCUSW 60 D MR:8.8 <APPROVED> "Startup code(Declaration for main in library;Only doing an extern for the same)" */
main();
/* USER CODE BEGIN (76) */
/* USER CODE END */
/*SAFETYMCUSW 122 S MR:20.11 <APPROVED> "Startup code(exit and abort need to be present)" */
exit(0);
/* USER CODE BEGIN (77) */
/* USER CODE END */
}
/* USER CODE BEGIN (78) */
/* USER CODE END */
