详细开发-2.新唐单片机cortexm032位numicro cmsis

Architecture,System,Tools,CMSIS 议题NuMicro™AFamilyofMCUPoweredbyARMCortex-NUC150General NUC150General USB HighdensityFlashUSBCAN12-bit MT530 MotorApplication Net Nano100 EthernetApplicationUltraLowPowerwithLCDNUC122 ASSPLowPowerUSBFSM051 Mini51 *:In8051 MiniFlashLPC **:Product

New32-bit Mini51

Motor

TouchUSB

MCUwithLCD

HighDensityEthernetControlMini51系列全部功能DebugARMCortex-M0功能方块Debug442Cortex-Cortex-M0componentsCortex-M0processor NestedVectoredDebugAccessPortBusDebuggerWakeupCortex-M0ProcessorAHB-Liteinterface

SerialWireJTAGdebug 系统介Mini51MCU内嵌Cortex-M04KB/8KB/16KB 区(DataFlash)2KBFlash 2KBSRAMISP(InSystemProgramming)by2ICPInCircuitProgramming)updatefromICE2SWDICE宽电压范围2.5V～ICP(InCircuitNuMicroICPNu-Nu-SWDNuMicroISP(InSystemM0-UpdateM0-UpdateUARTUART从LDROM启NuMicroISPv.sICP不同PCAPCPUCPULDROM

系统内存映CortexM0SystemAHBAPBISPLoaderProgramMemoryApplicationProgramMemory

电源管理灵活的系统时钟源选所有外设的时钟可以单独关IDLECPU停止,外设可能还在运行，由应用程序控CPU&和大多外设都停止运电源管SCB->SCR=CLK->PWRCON_BITS.PD_WK_IE=CLK->PWRCON_BITS.PD_EN=0; SCB->SCR=CLK->PWRCON_BITS.PD_WK_IE=CLK->PWRCON_BITS.PD_EN=1; 系统复硬件复软件复CPU&flash1到CHIP_RST(IPRSTC1[0],1) 1到SYSRESETREQ(AIRCR[2],ApplicationInterrupt&Control “RSTSRC”“RSTSRC”寄存器可用于确 的复位RSTSRC(系统复位源寄存器系统复位源寄存 7

上电复/RESET引脚低电平复看门狗超时复低电压检测复系统复位源列ResetStatus765432100X00X011ResetPin0X00X010OutReset0X00X1000X01X0000X10X0000X00X0011X00X000外设复每个外设有相应的复位“IPRSTC1&IPRSTC2IPRSTC2(外设复位控制寄存器ResetIPResetControlResister876543210bit“1”“0”Mini51系列时钟发生

12MHzor32

12MHzor32

22.1184

22.1184内部

10

10876543210Trimvaluecalculationisbasedonaveragedifferencein32KHzEnable/Disableauto-trimfunction,itwilltrimHIRCtoIRCTRIMIENIRCTRIMINT87654321032KHz32KHzclockerrorinterruptTrimfailureinterrupt87654321032KHzclock32KHzclockNuMicroMini51系列系统时钟

SysTick时钟STCLK_S12Mor12Mor÷÷÷ NuMicro整合在Cortex-M0内核支持32个外部中支持NMI(不 “TailChaining&“LateCMSISCISR函数调中断处理函系统外设中断映射向量中断(BitinInterrupt中断名外中断描0~---012外部中断，来自P3.23外部中断，来自P5.24外部中断，来自P0[7:05],678定时器0中9定时器1中UART中SPI外部中断，来自P5[5:0],系统外设中断映射向量中断(BitinInterrupt中断名外中断描I2C模拟比较器0和模拟比较器1中ADCARM&开发工具厂商(Keil,IAR..)CorePeripheralAccessLayerDevicePeripheralAccessLayer

结

CMSISchanges.htm

CMSIS_Core.htmCMSIS编码规ANSIANSICstdint.h异常/中断处理函数命名规缺省异常/中断处理函数(weakdefinition)是一个死循Mini51CMSISIC厂商提供3个文 systemMini51.c(systemARM提供2个文typedefenum{typedefenum{ =-14, /*!<2NonMaskableInterrupt =-13, /*!<3Cortex-M0HardFaultInterrupt =-5, /*!<11Cortex-M0SVCallInterrupt =- /*!<14Cortex-M0PendSV =- /*!<15Cortex-M0SystemTick /******ARMIKMCUSwiftspecificInterruptNumbers}==================中断号定义在“Mini51.h”startup_Mini51.s_Vectors

;Reset;NMI;HardFault;;;;;;;;SVCall;;;PendSV;SysTick

;External

startup_Mini51.s

这些中断名字是固定的定义中断处理函数的起始

876543210

ClockController typedefstruct{union IOuint32_tPWRCON;struct{ IOuint32_t IOuint32_t IOuint32_t IOuint32_t IOuint32_t IOuint32_t IOuint32_tPD_EN:1; IOuint32_tPD_32K_EN:1; }CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA_+GCR_BA+typedeftypedef{IOuint32_tPWRCON;IOuint32_tAHBCLK;IOuint32_tAPBCLK;IOuint32_tCLKSTATUS;IOuint32_tCLKSEL0;IOuint32_tCLKSEL1;IOuint32_tCLKDIV;IOuint32_tCLKSEL2;uint32_t IOIOuint32_t}以地址CLK_BA 址的一组寄存typedeftypedefstruct{union{ IOuint32_tstructIOuint32_tIOuint32_tIOuint32_tIOuint32_t}union IOuint32_tstruct IOuint32_t }

union IOstruct

IOuint32_t uint32_t IOuint32_t}CLK_BACLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA+CLK_BA_+GCR_BA+ IOuint32_tstructIOuint32_t}}寄存#defineCLK_BASE#define

(AHBPERIPH_BASE+0x00200)系统控制寄存时钟控制寄存中断复用控制寄GPIO控制寄存Flash器控制寄存CLK->PWRCON_BITS.XTLCLK_EN=0x1;//使能外部12MHz晶 Cortex-M0内核寄存 函数定内核寄存描voidenable_irqPRIMASK=(使用指令CPSIEvoiddisable_irqPRIMASK=全局中断(使用指令CPSIDvoidset_PRIMASK(uint32_tPRIMASK=写PriorityMask寄存器(使用指令uint32_t get_PRIMASKreturn读PriorityMask寄存器的值(使用指令voidset_CONTROL(uint32_tCONTROL=(使用指令uint32_t get_CONTROLreturn取得控制寄存器的值(使用指令voidset_PSP(uint32_tPSP=uint32_t get_PSPreturn(使用指令voidset_MSP(uint32_tMSP=写主堆栈指针寄存器(使用指令uint32_t get_MSPreturn(使用指令Cortex-M0指函数名描void WFIWaitforvoid WFEWaitforvoid SEVSetvoid ISBInstructionSynchronizationvoid DSBvoid DMBDataMemoryuint32_t uint32_t REV16(uint16_tReversebyteorderinunsignedsint32_t REVSH(sint16_tReversebyteorderinsignedshortvaluewithsignextensiontointeger.NVIC函数调函数参描PriorityGrouSetthePriorityGrou(GroupsIRQIRQnIRQIRQReturn1ifIRQnispendingelseIRQSetIRQnIRQClearIRQnPendinguint32_tpriority)IRQNumber,IRQnIRQIRQnuint32_tNVIC_EncodePriority(uint32_tuint32_tSubPriority)IRQNumber,PriorityGroup,PreemptivePriority,SubPriorityEncodepriorityforgiveng