STM32FProgrammingManual.docVIP

目录 一． Cortex-M3 Processor 3 1.1 Programmers model 3 1.1.1 The processor modes 3 1.1.2 The privilege levels for software execution 3 1.1.3 Stack堆栈 3 1.1. 4 Core Registers---核心寄存器 3 1.1. 5 Data types manages 4 1.2 Memory model 4 1.2.1 Memory regions, types and attributes 4 1.2.2 Memory system ordering of memory accesses 4 1.2.3 Behavior of memory accesses 5 1.2.4 Software ordering of memory accesses 5 1.2.5 Bit-banding 5 1.3 Exception model 6 1.3.1 Exception types 6 1.3.2 函数调用时关于参数的传递—来自IAR Embedded Workbench? IDE User Guide 7 1.3.3 关于中断的进入和退出—来自Cortex?-M3 Revision: r1p1 Technical Reference Manual 8 1.4 Fault handling 9 1.4.1 The following generate a fault: 9 1.4.2 Fault types 9 1.4.3 Fault escalation and hard faults 10 1.5 软件中断实现总结 10 1.6 等级控制 11 二． Core peripherals 13 2.1 STM32 core peripheral register regions 13 2.2 Memory Protection Unit-----MPU 13 2.2.1 MPU access permission attributes 13 2.2.2 MPU mismatch 13 2.2.3 Updating an MPU region 14 2.2.4 MPU design hints and tips----MPU使用关键和注意点—重要 14 2.3 Nested vectored interrupt controller (NVIC) 15 2.3.1 The CMSIS mapping of the Cortex-M3 NVIC registers 15 2.3.2 详细寄存器 15 2.3.3 Level-sensitive and pulse interrupts 16 2.3.4 NVIC design hints and tips 16 4.4 System control block (SCB) 16 4.4.1整体 16 4.4.2 寄存器介绍： 17 4.4.3 System control block design hints and tips 18 4.5 SysTick timer (STK) 18 4.5.1 寄存器 18 4.5.2 SysTick design hints and tips 18 Cortex-M3 Processor 1.1 Programmers model 1.1.1 The processor modes Thread mode ---线程模式 Handler mode---管理模式 1.1.2 The privilege levels for software execution Unprivileged----非特权层 Privileged--------特权层 线程模式下，由CONTROL register 控制软件的执行是否在特权层。 管理模式下，永远都是特权层。 为了能够在线程模式下执行特权软件，可以在非特权层使用SVC指令进行管理调用，并在exception handler中设置CONTROL register。 1.1.3 Stack堆栈 使用满递减堆栈。When the processor pushes a new item onto the stack, it decrements the stack pointer and then writes the item to the new memory location. 有两个堆栈，the main stack and the process stack，每个堆栈都有一个堆栈只针对独立备份。 线程模式下，由CONTROL register 控制