4.1 上电启动 根据上面的分析,reset后处理器从0x00000000地址处取四字节值到MSP寄存器,也就是取__StackTop标号的值到MSP寄存器。然后处理器装载0x00000004地址处的值(Reset_Handler标号代表的值)到PC指针,也就是程序跳转到Reset_Handler标号处开始运行。 __isr_vector: .long __StackTop /* Top of Stack */ ....
I do not understand how can I use the emulated EEPROM in this case (When I try to flash the application, the program ends in the reset handler) 0 Kudos Reply 07-30-2018 03:31 AM 5,854 Views danielmartynek NXP TechSupport Hi, Have you seen this thread: https://community....
I am using MKM34Z processor and Jump to Application code just like you mentioned, but program cannot exit Reset_Handler. I am using IAR and Reset Handler is below; PUBWEAK Reset_Handler SECTION .text:CODE:REORDER:NOROOT(2)Reset_Handler CPSID I ; Mask interrupts LDR R0, =0xE000ED08 LDR...
2. One or multiple triggers come on any input while a trigger either stored or under process for that input in the trigger handler. 3. The trigger on a particular input asserts during the period of end-of-conversion cycle of a conversion initiated from this input. • In these cases ...
Using a Keil ULINKpro to view Interrupt Handler execution times: SWV Throughput: ULINKpro is much better with SWO bandwidth issues. It has been able to display both the EV and LA windows. The ULINKpro ETM and ULINKpro UART modes are preconfigured Options for Target. ULINKpro can also use ...
Using a Keil ULINKpro to view Interrupt Handler execution times: SWV Throughput: ULINKpro is much better with SWO bandwidth issues. It has been able to display both the EV and LA windows. The ULINKpro ETM and ULINKpro Manchester modes are preconfigured in Options for Target. ULINKpro can ...
/* Install LPIT_ISR as LPIT interrupt handler */ INT_SYS_InstallHandler(LPIT0_Ch0_IRQn, &lpit_ch0_isr, (isr_t *)0); /* Start LPIT0 channel 0 counter */ LPIT_DRV_StartTimerChannels(INST_LPIT1, (1 << 0)); } void lpit_ch0_isr(void) { LPIT_DRV_ClearInterruptFlagTimerChannels(...
reset_handler(); /* * Step 2: */ ret = board_init(); if (ret) { putstr("Failed a board_init() procedure\r\n"); error(); } /* * Step 3: */ mem_map_init(); mmu_init(); putstr("Succeed memory mapping.\r\n");
线程模式(Thread Model),应用程序正常执行的时候所在的模式,处理器每次reset重启后进入这个模式;异常处理模式(Handler Model),CPU异常处理的时候进入这个模式,当CPU执行完异常处理程序后会退回到Thread Model。 3.2) Cortex-M4两种特权级: 非特权级状态(Unprivileged),软件限制使用MSR和MRS指令,不能使用CPS指令。不能访...
1、首先将startup_stm32f767xx.s(结合自己所使用的芯片MCU型号)栈和堆加大,测试是否还进入HardFault_Handler不; 2、如果按照第1步处理后,仍然进入...说明:stm32f7xx_it.c(结合自己所使用的芯片MCU型号)中的voidHardFault_Handler(void)函数里只能有while(1){},不要有其它代码,尤其是printf(),否则会影响第...