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Hello,
I am using stm32h753 micro and i'd like to save heap in my external ram (0xC0000000).
When I debug my project an hard faulter handler occurs invocating the __main function after systeminit().
I write here my startup.s and my .sct file
//--------------
Stack_Size EQU 0x400
AREA STACK, NOINIT, READWRITE, ALIGN=3Stack_Mem SPACE Stack_Size__initial_sp
; <h> Heap Configuration; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>; </h>
Heap_Size EQU 0x00040000
AREA HEAP, NOINIT, READWRITE, ALIGN=3__heap_baseHeap_Mem SPACE Heap_Size__heap_limit
//---------------------------------------
LR_IROM1 0x8000000 0x00200000 { ; load region size_region ER_IROM1 0x8000000 { ; load address = execution address *.o (RESET, +First) *(InRoot$$Sections) .ANY (+RO) .ANY (+XO) } RW_IRAM1 0x24000000 0x00080000 ; 512KB { startup.o (STACK) .ANY (+RW +ZI) } RW_IRAM2 0x30000000 0x00040000 ; 288KB { ;startup.o (HEAP) } RW_IRAM3 0x38000000 0x0010000 ; 64KB {
}
LR_ERAM 0xC0000000 0x2000000 { ER_ERAM1 0xC0000000 0x00040000 { startup.o (HEAP) }
ER_ERAM2 0xC1F00000 0x00100000 { }}
any idea?
thanks in advance
thank your for your reply
I can't attach startup file...you can find here the startup code
stack_Size EQU 0x400
PRESERVE8 THUMB
; Vector Table Mapped to Address 0 at Reset AREA RESET, DATA, READONLY EXPORT __Vectors EXPORT __Vectors_End EXPORT __Vectors_Size
__Vectors DCD __initial_sp ; Top of Stack DCD Reset_Handler ; Reset Handler DCD NMI_Handler ; NMI Handler DCD HardFault_Handler ; Hard Fault Handler DCD MemManage_Handler ; MPU Fault Handler DCD BusFault_Handler ; Bus Fault Handler DCD UsageFault_Handler ; Usage Fault Handler DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD SVC_Handler ; SVCall Handler DCD DebugMon_Handler ; Debug Monitor Handler DCD 0 ; Reserved DCD PendSV_Handler ; PendSV Handler DCD SysTick_Handler ; SysTick Handler
; External Interrupts DCD WWDG_IRQHandler ; Window WatchDog interrupt ( wwdg1_it) DCD PVD_AVD_IRQHandler ; PVD/AVD through EXTI Line detection DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line DCD FLASH_IRQHandler ; FLASH DCD RCC_IRQHandler ; RCC DCD EXTI0_IRQHandler ; EXTI Line0 DCD EXTI1_IRQHandler ; EXTI Line1 DCD EXTI2_IRQHandler ; EXTI Line2 DCD EXTI3_IRQHandler ; EXTI Line3 DCD EXTI4_IRQHandler ; EXTI Line4 DCD DMA1_Stream0_IRQHandler ; DMA1 Stream 0 DCD DMA1_Stream1_IRQHandler ; DMA1 Stream 1 DCD DMA1_Stream2_IRQHandler ; DMA1 Stream 2 DCD DMA1_Stream3_IRQHandler ; DMA1 Stream 3 DCD DMA1_Stream4_IRQHandler ; DMA1 Stream 4 DCD DMA1_Stream5_IRQHandler ; DMA1 Stream 5 DCD DMA1_Stream6_IRQHandler ; DMA1 Stream 6 DCD ADC_IRQHandler ; ADC1, ADC2 DCD FDCAN1_IT0_IRQHandler ; FDCAN1 interrupt line 0 DCD FDCAN2_IT0_IRQHandler ; FDCAN2 interrupt line 0 DCD FDCAN1_IT1_IRQHandler ; FDCAN1 interrupt line 1 DCD FDCAN2_IT1_IRQHandler ; FDCAN2 interrupt line 1 DCD EXTI9_5_IRQHandler ; External Line[9:5]s DCD TIM1_BRK_IRQHandler ; TIM1 Break interrupt DCD TIM1_UP_IRQHandler ; TIM1 Update Interrupt DCD TIM1_TRG_COM_IRQHandler ; TIM1 Trigger and Commutation Interrupt DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare DCD TIM2_IRQHandler ; TIM2 DCD TIM3_IRQHandler ; TIM3 DCD TIM4_IRQHandler ; TIM4 DCD I2C1_EV_IRQHandler ; I2C1 Event DCD I2C1_ER_IRQHandler ; I2C1 Error DCD I2C2_EV_IRQHandler ; I2C2 Event DCD I2C2_ER_IRQHandler ; I2C2 Error DCD SPI1_IRQHandler ; SPI1 DCD SPI2_IRQHandler ; SPI2 DCD USART1_IRQHandler ; USART1 DCD USART2_IRQHandler ; USART2 DCD USART3_IRQHandler ; USART3 DCD EXTI15_10_IRQHandler ; External Line[15:10] DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line DCD 0 ; Reserved DCD TIM8_BRK_TIM12_IRQHandler ; TIM8 Break Interrupt and TIM12 global interrupt DCD TIM8_UP_TIM13_IRQHandler ; TIM8 Update Interrupt and TIM13 global interrupt DCD TIM8_TRG_COM_TIM14_IRQHandler ; TIM8 Trigger and Commutation Interrupt and TIM14 global interrupt DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare Interrupt DCD DMA1_Stream7_IRQHandler ; DMA1 Stream7 DCD FMC_IRQHandler ; FMC DCD SDMMC1_IRQHandler ; SDMMC1 DCD TIM5_IRQHandler ; TIM5 DCD SPI3_IRQHandler ; SPI3 DCD UART4_IRQHandler ; UART4 DCD UART5_IRQHandler ; UART5 DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors DCD TIM7_IRQHandler ; TIM7 DCD DMA2_Stream0_IRQHandler ; DMA2 Stream 0 DCD DMA2_Stream1_IRQHandler ; DMA2 Stream 1 DCD DMA2_Stream2_IRQHandler ; DMA2 Stream 2 DCD DMA2_Stream3_IRQHandler ; DMA2 Stream 3 DCD DMA2_Stream4_IRQHandler ; DMA2 Stream 4 DCD ETH_IRQHandler ; Ethernet DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line DCD FDCAN_CAL_IRQHandler ; FDCAN calibration unit interrupt DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD DMA2_Stream5_IRQHandler ; DMA2 Stream 5 DCD DMA2_Stream6_IRQHandler ; DMA2 Stream 6 DCD DMA2_Stream7_IRQHandler ; DMA2 Stream 7 DCD USART6_IRQHandler ; USART6 DCD I2C3_EV_IRQHandler ; I2C3 event DCD I2C3_ER_IRQHandler ; I2C3 error DCD OTG_HS_EP1_OUT_IRQHandler ; USB OTG HS End Point 1 Out DCD OTG_HS_EP1_IN_IRQHandler ; USB OTG HS End Point 1 In DCD OTG_HS_WKUP_IRQHandler ; USB OTG HS Wakeup through EXTI DCD OTG_HS_IRQHandler ; USB OTG HS DCD DCMI_IRQHandler ; DCMI DCD CRYP_IRQHandler ; CRYP crypto DCD HASH_RNG_IRQHandler ; Hash and Rng DCD FPU_IRQHandler ; FPU DCD UART7_IRQHandler ; UART7 DCD UART8_IRQHandler ; UART8 DCD SPI4_IRQHandler ; SPI4 DCD SPI5_IRQHandler ; SPI5 DCD SPI6_IRQHandler ; SPI6 DCD SAI1_IRQHandler ; SAI1 DCD LTDC_IRQHandler ; LTDC DCD LTDC_ER_IRQHandler ; LTDC error DCD DMA2D_IRQHandler ; DMA2D DCD SAI2_IRQHandler ; SAI2 DCD QUADSPI_IRQHandler ; QUADSPI DCD LPTIM1_IRQHandler ; LPTIM1 DCD CEC_IRQHandler ; HDMI_CEC DCD I2C4_EV_IRQHandler ; I2C4 Event DCD I2C4_ER_IRQHandler ; I2C4 Error DCD SPDIF_RX_IRQHandler ; SPDIF_RX DCD OTG_FS_EP1_OUT_IRQHandler ; USB OTG FS End Point 1 Out DCD OTG_FS_EP1_IN_IRQHandler ; USB OTG FS End Point 1 In DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI DCD OTG_FS_IRQHandler ; USB OTG FS DCD DMAMUX1_OVR_IRQHandler ; DMAMUX1 Overrun interrupt DCD HRTIM1_Master_IRQHandler ; HRTIM Master Timer global Interrupts DCD HRTIM1_TIMA_IRQHandler ; HRTIM Timer A global Interrupt DCD HRTIM1_TIMB_IRQHandler ; HRTIM Timer B global Interrupt DCD HRTIM1_TIMC_IRQHandler ; HRTIM Timer C global Interrupt DCD HRTIM1_TIMD_IRQHandler ; HRTIM Timer D global Interrupt DCD HRTIM1_TIME_IRQHandler ; HRTIM Timer E global Interrupt DCD HRTIM1_FLT_IRQHandler ; HRTIM Fault global Interrupt DCD DFSDM1_FLT0_IRQHandler ; DFSDM Filter0 Interrupt DCD DFSDM1_FLT1_IRQHandler ; DFSDM Filter1 Interrupt DCD DFSDM1_FLT2_IRQHandler ; DFSDM Filter2 Interrupt DCD DFSDM1_FLT3_IRQHandler ; DFSDM Filter3 Interrupt DCD SAI3_IRQHandler ; SAI3 global Interrupt DCD SWPMI1_IRQHandler ; Serial Wire Interface 1 global interrupt DCD TIM15_IRQHandler ; TIM15 global Interrupt DCD TIM16_IRQHandler ; TIM16 global Interrupt DCD TIM17_IRQHandler ; TIM17 global Interrupt DCD MDIOS_WKUP_IRQHandler ; MDIOS Wakeup Interrupt DCD MDIOS_IRQHandler ; MDIOS global Interrupt DCD JPEG_IRQHandler ; JPEG global Interrupt DCD MDMA_IRQHandler ; MDMA global Interrupt DCD 0 ; Reserved DCD SDMMC2_IRQHandler ; SDMMC2 global Interrupt DCD HSEM1_IRQHandler ; HSEM1 global Interrupt DCD 0 ; Reserved DCD ADC3_IRQHandler ; ADC3 global Interrupt DCD DMAMUX2_OVR_IRQHandler ; DMAMUX Overrun interrupt DCD BDMA_Channel0_IRQHandler ; BDMA Channel 0 global Interrupt DCD BDMA_Channel1_IRQHandler ; BDMA Channel 1 global Interrupt DCD BDMA_Channel2_IRQHandler ; BDMA Channel 2 global Interrupt DCD BDMA_Channel3_IRQHandler ; BDMA Channel 3 global Interrupt DCD BDMA_Channel4_IRQHandler ; BDMA Channel 4 global Interrupt DCD BDMA_Channel5_IRQHandler ; BDMA Channel 5 global Interrupt DCD BDMA_Channel6_IRQHandler ; BDMA Channel 6 global Interrupt DCD BDMA_Channel7_IRQHandler ; BDMA Channel 7 global Interrupt DCD COMP1_IRQHandler ; COMP1 global Interrupt DCD LPTIM2_IRQHandler ; LP TIM2 global interrupt DCD LPTIM3_IRQHandler ; LP TIM3 global interrupt DCD LPTIM4_IRQHandler ; LP TIM4 global interrupt DCD LPTIM5_IRQHandler ; LP TIM5 global interrupt DCD LPUART1_IRQHandler ; LP UART1 interrupt DCD 0 ; Reserved DCD CRS_IRQHandler ; Clock Recovery Global Interrupt DCD ECC_IRQHandler ; ECC diagnostic Global Interrupt DCD SAI4_IRQHandler ; SAI4 global interrupt DCD 0 ; Reserved DCD 0 ; Reserved DCD WAKEUP_PIN_IRQHandler ; Interrupt for all 6 wake-up pins
__Vectors_End
__Vectors_Size EQU __Vectors_End - __Vectors
AREA |.text|, CODE, READONLY
; Reset handlerReset_Handler PROC EXPORT Reset_Handler [WEAK] IMPORT SystemInit IMPORT __main
LDR R0, =SystemInit BLX R0 LDR R0, =__main BX R0 ENDP
; Dummy Exception Handlers (infinite loops which can be modified)
NMI_Handler PROC EXPORT NMI_Handler [WEAK] B . ENDPHardFault_Handler\ PROC EXPORT HardFault_Handler [WEAK] B . ENDPMemManage_Handler\ PROC EXPORT MemManage_Handler [WEAK] B . ENDPBusFault_Handler\ PROC EXPORT BusFault_Handler [WEAK] B . ENDPUsageFault_Handler\ PROC EXPORT UsageFault_Handler [WEAK] B . ENDPSVC_Handler PROC EXPORT SVC_Handler [WEAK] B . ENDPDebugMon_Handler\ PROC EXPORT DebugMon_Handler [WEAK] B . ENDPPendSV_Handler PROC EXPORT PendSV_Handler [WEAK] B . ENDPSysTick_Handler PROC EXPORT SysTick_Handler [WEAK] B . ENDP Default_Handler PROC
EXPORT WWDG_IRQHandler [WEAK] EXPORT PVD_AVD_IRQHandler [WEAK] EXPORT TAMP_STAMP_IRQHandler [WEAK] EXPORT RTC_WKUP_IRQHandler [WEAK] EXPORT FLASH_IRQHandler [WEAK] EXPORT RCC_IRQHandler [WEAK] EXPORT EXTI0_IRQHandler [WEAK] EXPORT EXTI1_IRQHandler [WEAK] EXPORT EXTI2_IRQHandler [WEAK] EXPORT EXTI3_IRQHandler [WEAK] EXPORT EXTI4_IRQHandler [WEAK] EXPORT DMA1_Stream0_IRQHandler [WEAK] EXPORT DMA1_Stream1_IRQHandler [WEAK] EXPORT DMA1_Stream2_IRQHandler [WEAK] EXPORT DMA1_Stream3_IRQHandler [WEAK] EXPORT DMA1_Stream4_IRQHandler [WEAK] EXPORT DMA1_Stream5_IRQHandler [WEAK] EXPORT DMA1_Stream6_IRQHandler [WEAK] EXPORT DMA1_Stream7_IRQHandler [WEAK] EXPORT ADC_IRQHandler [WEAK] EXPORT FDCAN1_IT0_IRQHandler [WEAK] EXPORT FDCAN2_IT0_IRQHandler [WEAK] EXPORT FDCAN1_IT1_IRQHandler [WEAK] EXPORT FDCAN2_IT1_IRQHandler [WEAK] EXPORT EXTI9_5_IRQHandler [WEAK] EXPORT TIM1_BRK_IRQHandler [WEAK] EXPORT TIM1_UP_IRQHandler [WEAK] EXPORT TIM1_TRG_COM_IRQHandler [WEAK] EXPORT TIM1_CC_IRQHandler [WEAK] EXPORT TIM2_IRQHandler [WEAK] EXPORT TIM3_IRQHandler [WEAK] EXPORT TIM4_IRQHandler [WEAK] EXPORT I2C1_EV_IRQHandler [WEAK] EXPORT I2C1_ER_IRQHandler [WEAK] EXPORT I2C2_EV_IRQHandler [WEAK] EXPORT I2C2_ER_IRQHandler [WEAK] EXPORT SPI1_IRQHandler [WEAK] EXPORT SPI2_IRQHandler [WEAK] EXPORT USART1_IRQHandler [WEAK] EXPORT USART2_IRQHandler [WEAK] EXPORT USART3_IRQHandler [WEAK] EXPORT EXTI15_10_IRQHandler [WEAK] EXPORT RTC_Alarm_IRQHandler [WEAK] EXPORT TIM8_BRK_TIM12_IRQHandler [WEAK] EXPORT TIM8_UP_TIM13_IRQHandler [WEAK] EXPORT TIM8_TRG_COM_TIM14_IRQHandler [WEAK] EXPORT TIM8_CC_IRQHandler [WEAK] EXPORT DMA1_Stream7_IRQHandler [WEAK] EXPORT FMC_IRQHandler [WEAK] EXPORT SDMMC1_IRQHandler [WEAK] EXPORT TIM5_IRQHandler [WEAK] EXPORT SPI3_IRQHandler [WEAK] EXPORT UART4_IRQHandler [WEAK] EXPORT UART5_IRQHandler [WEAK] EXPORT TIM6_DAC_IRQHandler [WEAK] EXPORT TIM7_IRQHandler [WEAK] EXPORT DMA2_Stream0_IRQHandler [WEAK] EXPORT DMA2_Stream1_IRQHandler [WEAK] EXPORT DMA2_Stream2_IRQHandler [WEAK] EXPORT DMA2_Stream3_IRQHandler [WEAK] EXPORT DMA2_Stream4_IRQHandler [WEAK] EXPORT ETH_IRQHandler [WEAK] EXPORT ETH_WKUP_IRQHandler [WEAK] EXPORT FDCAN_CAL_IRQHandler [WEAK] EXPORT DMA2_Stream5_IRQHandler [WEAK] EXPORT DMA2_Stream6_IRQHandler [WEAK] EXPORT DMA2_Stream7_IRQHandler [WEAK] EXPORT USART6_IRQHandler [WEAK] EXPORT I2C3_EV_IRQHandler [WEAK] EXPORT I2C3_ER_IRQHandler [WEAK] EXPORT OTG_HS_EP1_OUT_IRQHandler [WEAK] EXPORT OTG_HS_EP1_IN_IRQHandler [WEAK] EXPORT OTG_HS_WKUP_IRQHandler [WEAK] EXPORT OTG_HS_IRQHandler [WEAK] EXPORT DCMI_IRQHandler [WEAK] EXPORT CRYP_IRQHandler [WEAK] EXPORT HASH_RNG_IRQHandler [WEAK] EXPORT FPU_IRQHandler [WEAK] EXPORT UART7_IRQHandler [WEAK] EXPORT UART8_IRQHandler [WEAK] EXPORT SPI4_IRQHandler [WEAK] EXPORT SPI5_IRQHandler [WEAK] EXPORT SPI6_IRQHandler [WEAK] EXPORT SAI1_IRQHandler [WEAK] EXPORT LTDC_IRQHandler [WEAK] EXPORT LTDC_ER_IRQHandler [WEAK] EXPORT DMA2D_IRQHandler [WEAK] EXPORT SAI2_IRQHandler [WEAK] EXPORT QUADSPI_IRQHandler [WEAK] EXPORT LPTIM1_IRQHandler [WEAK] EXPORT CEC_IRQHandler [WEAK] EXPORT I2C4_EV_IRQHandler [WEAK] EXPORT I2C4_ER_IRQHandler [WEAK] EXPORT SPDIF_RX_IRQHandler [WEAK] EXPORT OTG_FS_EP1_OUT_IRQHandler [WEAK] EXPORT OTG_FS_EP1_IN_IRQHandler [WEAK] EXPORT OTG_FS_WKUP_IRQHandler [WEAK] EXPORT OTG_FS_IRQHandler [WEAK] EXPORT DMAMUX1_OVR_IRQHandler [WEAK] EXPORT HRTIM1_Master_IRQHandler [WEAK] EXPORT HRTIM1_TIMA_IRQHandler [WEAK] EXPORT HRTIM1_TIMB_IRQHandler [WEAK] EXPORT HRTIM1_TIMC_IRQHandler [WEAK] EXPORT HRTIM1_TIMD_IRQHandler [WEAK] EXPORT HRTIM1_TIME_IRQHandler [WEAK] EXPORT HRTIM1_FLT_IRQHandler [WEAK] EXPORT DFSDM1_FLT0_IRQHandler [WEAK] EXPORT DFSDM1_FLT1_IRQHandler [WEAK] EXPORT DFSDM1_FLT2_IRQHandler [WEAK] EXPORT DFSDM1_FLT3_IRQHandler [WEAK] EXPORT SAI3_IRQHandler [WEAK] EXPORT SWPMI1_IRQHandler [WEAK] EXPORT TIM15_IRQHandler [WEAK] EXPORT TIM16_IRQHandler [WEAK] EXPORT TIM17_IRQHandler [WEAK] EXPORT MDIOS_WKUP_IRQHandler [WEAK] EXPORT MDIOS_IRQHandler [WEAK] EXPORT JPEG_IRQHandler [WEAK] EXPORT MDMA_IRQHandler [WEAK] EXPORT SDMMC2_IRQHandler [WEAK] EXPORT HSEM1_IRQHandler [WEAK] EXPORT ADC3_IRQHandler [WEAK] EXPORT DMAMUX2_OVR_IRQHandler [WEAK] EXPORT BDMA_Channel0_IRQHandler [WEAK] EXPORT BDMA_Channel1_IRQHandler [WEAK] EXPORT BDMA_Channel2_IRQHandler [WEAK] EXPORT BDMA_Channel3_IRQHandler [WEAK] EXPORT BDMA_Channel4_IRQHandler [WEAK] EXPORT BDMA_Channel5_IRQHandler [WEAK] EXPORT BDMA_Channel6_IRQHandler [WEAK] EXPORT BDMA_Channel7_IRQHandler [WEAK] EXPORT COMP1_IRQHandler [WEAK] EXPORT LPTIM2_IRQHandler [WEAK] EXPORT LPTIM3_IRQHandler [WEAK] EXPORT LPTIM4_IRQHandler [WEAK] EXPORT LPTIM5_IRQHandler [WEAK] EXPORT LPUART1_IRQHandler [WEAK] EXPORT CRS_IRQHandler [WEAK] EXPORT ECC_IRQHandler [WEAK] EXPORT SAI4_IRQHandler [WEAK] EXPORT WAKEUP_PIN_IRQHandler [WEAK]
WWDG_IRQHandler PVD_AVD_IRQHandler TAMP_STAMP_IRQHandler RTC_WKUP_IRQHandler FLASH_IRQHandler RCC_IRQHandler EXTI0_IRQHandler EXTI1_IRQHandler EXTI2_IRQHandler EXTI3_IRQHandler EXTI4_IRQHandler DMA1_Stream0_IRQHandlerDMA1_Stream1_IRQHandler DMA1_Stream2_IRQHandler DMA1_Stream3_IRQHandler DMA1_Stream4_IRQHandler DMA1_Stream5_IRQHandler DMA1_Stream6_IRQHandler ADC_IRQHandler FDCAN1_IT0_IRQHandlerFDCAN2_IT0_IRQHandlerFDCAN1_IT1_IRQHandlerFDCAN2_IT1_IRQHandlerEXTI9_5_IRQHandler TIM1_BRK_IRQHandler TIM1_UP_IRQHandler TIM1_TRG_COM_IRQHandler TIM1_CC_IRQHandler TIM2_IRQHandler TIM3_IRQHandler TIM4_IRQHandler I2C1_EV_IRQHandler I2C1_ER_IRQHandler I2C2_EV_IRQHandler I2C2_ER_IRQHandler SPI1_IRQHandler SPI2_IRQHandler USART1_IRQHandler USART2_IRQHandler USART3_IRQHandler EXTI15_10_IRQHandler RTC_Alarm_IRQHandler TIM8_BRK_TIM12_IRQHandler TIM8_UP_TIM13_IRQHandler TIM8_TRG_COM_TIM14_IRQHandler TIM8_CC_IRQHandler DMA1_Stream7_IRQHandler FMC_IRQHandler SDMMC1_IRQHandler TIM5_IRQHandler SPI3_IRQHandler UART4_IRQHandler UART5_IRQHandler TIM6_DAC_IRQHandler TIM7_IRQHandler DMA2_Stream0_IRQHandler DMA2_Stream1_IRQHandler DMA2_Stream2_IRQHandler DMA2_Stream3_IRQHandler DMA2_Stream4_IRQHandler ETH_IRQHandler ETH_WKUP_IRQHandler FDCAN_CAL_IRQHandler DMA2_Stream5_IRQHandler DMA2_Stream6_IRQHandler DMA2_Stream7_IRQHandler USART6_IRQHandler I2C3_EV_IRQHandler I2C3_ER_IRQHandler OTG_HS_EP1_OUT_IRQHandler OTG_HS_EP1_IN_IRQHandler OTG_HS_WKUP_IRQHandler OTG_HS_IRQHandler DCMI_IRQHandler CRYP_IRQHandler HASH_RNG_IRQHandlerFPU_IRQHandler UART7_IRQHandler UART8_IRQHandler SPI4_IRQHandler SPI5_IRQHandler SPI6_IRQHandler SAI1_IRQHandler LTDC_IRQHandler LTDC_ER_IRQHandler DMA2D_IRQHandler SAI2_IRQHandler QUADSPI_IRQHandlerLPTIM1_IRQHandlerCEC_IRQHandlerI2C4_EV_IRQHandlerI2C4_ER_IRQHandlerSPDIF_RX_IRQHandlerOTG_FS_EP1_OUT_IRQHandlerOTG_FS_EP1_IN_IRQHandler OTG_FS_WKUP_IRQHandler OTG_FS_IRQHandler DMAMUX1_OVR_IRQHandlerHRTIM1_Master_IRQHandler HRTIM1_TIMA_IRQHandler HRTIM1_TIMB_IRQHandler HRTIM1_TIMC_IRQHandler HRTIM1_TIMD_IRQHandler HRTIM1_TIME_IRQHandler HRTIM1_FLT_IRQHandler DFSDM1_FLT0_IRQHandlerDFSDM1_FLT1_IRQHandler DFSDM1_FLT2_IRQHandler DFSDM1_FLT3_IRQHandler SAI3_IRQHandler SWPMI1_IRQHandler TIM15_IRQHandler TIM16_IRQHandler TIM17_IRQHandler MDIOS_WKUP_IRQHandler MDIOS_IRQHandler JPEG_IRQHandler MDMA_IRQHandler SDMMC2_IRQHandler HSEM1_IRQHandler ADC3_IRQHandler DMAMUX2_OVR_IRQHandler BDMA_Channel0_IRQHandler BDMA_Channel1_IRQHandler BDMA_Channel2_IRQHandler BDMA_Channel3_IRQHandler BDMA_Channel4_IRQHandler BDMA_Channel5_IRQHandler BDMA_Channel6_IRQHandler BDMA_Channel7_IRQHandler COMP1_IRQHandler LPTIM2_IRQHandler LPTIM3_IRQHandler LPTIM4_IRQHandler LPTIM5_IRQHandler LPUART1_IRQHandler CRS_IRQHandler ECC_IRQHandler SAI4_IRQHandler WAKEUP_PIN_IRQHandler
B .
ENDP
ALIGN
;*******************************************************************************; User Stack and Heap initialization;******************************************************************************* IF :DEF:__MICROLIB EXPORT __initial_sp EXPORT __heap_base EXPORT __heap_limit ELSE IMPORT __use_two_region_memory EXPORT __user_initial_stackheap __user_initial_stackheap
LDR R0, = Heap_Mem LDR R1, =(Stack_Mem + Stack_Size) LDR R2, = (Heap_Mem + Heap_Size) LDR R3, = Stack_Mem BX LR
ENDIF
END
Yes, and you're not doing anything in there to turn on the clocks/memories. Doing it in main() is too late. CMSIS expects you to stand up the memory in SystemInit(), or assembler code in startup.s
The pins/memory are specific to your board.
See perhaps this for an example of how SDRAM is brought up, you'll need to tailor to YOUR hardware
STM32Cube_FW_H7_V1.5.0\Projects\STM32H747I-DISCO\Applications\STemWin\STemWin_animation\Common\Src\system_stm32h7xx.c