SEED-DEC2812函数说明1.doc

一 在DSP28_device.H中定义了如下内容：/在各个”.H”函数中，主要是对DSP中各个寄存器的结构进行了定义，相应的文件名对应相/应的寄存器extern cregister volatile unsigned int IFR;extern cregister volatile unsigned int IER;#define EINT asm( clrc INTM)#define DINT asm( setc INTM)#define ERTM asm( clrc DBGM)#define DRTM asm( setc DBGM)#define EALLOW asm( EALLOW)#define EDIS asm( EDIS)#define ESTOP0 asm( ESTOP0)#defineM_INT10x0001#defineM_INT20x0002#defineM_INT30x0004#defineM_INT40x0008#defineM_INT50x0010#defineM_INT60x0020#defineM_INT70x0040#defineM_INT80x0080#defineM_INT90x0100#defineM_INT10 0x0200#defineM_INT110x0400#defineM_INT120x0800#defineM_INT130x1000#defineM_INT140x2000#defineM_DLOG0x4000#defineM_RTOS0x8000#defineBIT00x0001#defineBIT10x0002#defineBIT20x0004#defineBIT30x0008#defineBIT40x0010#defineBIT50x0020#defineBIT60x0040#defineBIT70x0080#defineBIT80x0100#defineBIT90x0200#defineBIT100x0400#defineBIT110x0800#defineBIT120x1000#defineBIT130x2000#defineBIT140x4000#defineBIT150x8000/-/ For Portability, User Is Recommended To Use Following Data Type Size/ Definitions For 16-bit and 32-Bit Signed/Unsigned Integers:Typedef int int16;typedef long int32;typedef unsigned int Uint16;typedef unsigned long Uint32;/-/ Include All Peripheral Header Files:#include DSP28_GlobalPrototypes.h / Prototypes for global functions within the / .c files.#include DSP28_SysCtrl.h / System Control/Power Modes#include DSP28_DevEmu.h / Device Emulation Registers#include DSP28_Xintf.h / External Interface Registers#include DSP28_CpuTimers.h / 32-bit CPU Timers#include DSP28_PieCtrl.h / PIE Control Registers#include DSP28_PieVect.h / PIE Vector Table#include DSP28_DefaultIsr.h / Software Prioritization for PIE Interrupts#include DSP28_Spi.h / SPI Registers#include DSP28_Sci.h / SCI Registers#include DSP28_Mcbsp.h / McBSP Registers#include DSP28_ECan.h / Enhanced eCAN Registers#include DSP28_Gpio.h / General Purpose I/O Registers#include DSP28_Ev.h / Event Manager Registers#include DSP28_Adc.h / ADC Registers#include DSP28_XIntrupt.h / External Interrupts二 在文件DSP28_GlobalPrototypes.H中定义了如下函数：/*- shared global function prototypes -*/extern void InitAdc(void);extern void InitDevEmu(void);extern void InitDevice(void);extern void InitECana(void);extern void InitEv(void);extern void InitGpio(void);extern void InitMcbsp(void);extern void InitPieCtrl(void);extern void InitPieVectTable(void);extern void InitSci(void);extern void InitSpi(void);extern void InitSysCtrl(void);extern void InitXintf(void);extern void InitXIntrupt(void);extern void KickDog(void);三 在DSP28_CpuTimers.H中定义了如下函数：void ConfigCpuTimer(struct CPUTIMER_VARS *Timer, float Freq, float Period);/-/ Usefull Timer Operations:/ Start Timer:#defineStartCpuTimer0() CpuTimer0Regs.TCR.bit.TSS = 0#defineStartCpuTimer1() CpuTimer1Regs.TCR.bit.TSS = 0#defineStartCpuTimer2() CpuTimer2Regs.TCR.bit.TSS = 0/ Stop Timer:#defineStopCpuTimer0() CpuTimer0Regs.TCR.bit.TSS = 1#defineStopCpuTimer1() CpuTimer1Regs.TCR.bit.TSS = 1#defineStopCpuTimer2() CpuTimer2Regs.TCR.bit.TSS = 1/ Reload Timer With period Value:#defineReloadCpuTimer0() CpuTimer0Regs.TCR.bit.TRB = 1#defineReloadCpuTimer1() CpuTimer1Regs.TCR.bit.TRB = 1#defineReloadCpuTimer2() CpuTimer2Regs.TCR.bit.TRB = 1/ Read 32-Bit Timer Value:#defineReadCpuTimer0Counter() CpuTimer0Regs.TIM.all#defineReadCpuTimer1Counter() CpuTimer1Regs.TIM.all#defineReadCpuTimer2Counter() CpuTimer2Regs.TIM.all/ Read 32-Bit Period Value:#defineReadCpuTimer0Period() CpuTimer0Regs.PRD.all#defineReadCpuTimer1Period() CpuTimer1Regs.PRD.all#defineReadCpuTimer2Period() CpuTimer2Regs.PRD.all四 在DSP28_GlobalVariableDefs.c中定义了如下内容：/#pragma DATA_SECTION()伪指令将cmd文件中的段与H文件中定义的结构体一一对应#include DSP28_Device.h#pragma DATA_SECTION(AdcRegs,AdcRegsFile);volatile struct ADC_REGS AdcRegs;#pragma DATA_SECTION(CpuTimer0Regs,CpuTimer0RegsFile);volatile struct CPUTIMER_REGS CpuTimer0Regs;#pragma DATA_SECTION(CpuTimer1Regs,CpuTimer1RegsFile);volatile struct CPUTIMER_REGS CpuTimer1Regs;#pragma DATA_SECTION(CpuTimer2Regs,CpuTimer2RegsFile);volatile struct CPUTIMER_REGS CpuTimer2Regs;#pragma DATA_SECTION(ECanaRegs,ECanaRegsFile);volatile struct ECAN_REGS ECanaRegs;#pragma DATA_SECTION(ECanaMboxes,ECanaMboxesFile);volatile struct ECAN_MBOXES ECanaMboxes;#pragma DATA_SECTION(EvaRegs,EvaRegsFile);volatile struct EVA_REGS EvaRegs;#pragma DATA_SECTION(EvbRegs,EvbRegsFile);volatile struct EVB_REGS EvbRegs;#pragma DATA_SECTION(GpioDataRegs,GpioDataRegsFile);volatile struct GPIO_DATA_REGS GpioDataRegs;#pragma DATA_SECTION(GpioMuxRegs,GpioMuxRegsFile);volatile struct GPIO_MUX_REGS GpioMuxRegs;#pragma DATA_SECTION(McbspaRegs,McbspaRegsFile);volatile struct MCBSP_REGS McbspaRegs;#pragma DATA_SECTION(PieCtrl,PieCtrlRegsFile);volatile struct PIE_CTRL_REGS PieCtrl;#pragma DATA_SECTION(PieVectTable,PieVectTable);struct PIE_VECT_TABLE PieVectTable;#pragma DATA_SECTION(SciaRegs,SciaRegsFile);volatile struct SCI_REGS SciaRegs;#pragma DATA_SECTION(ScibRegs,ScibRegsFile);volatile struct SCI_REGS ScibRegs;#pragma DATA_SECTION(SpiaRegs,SpiaRegsFile);volatile struct SPI_REGS SpiaRegs;#pragma DATA_SECTION(SysCtrlRegs,SysCtrlRegsFile);volatile struct SYS_CTRL_REGS SysCtrlRegs;#pragma DATA_SECTION(DevEmuRegs,DevEmuRegsFile);volatile struct DEV_EMU_REGS DevEmuRegs;#pragma DATA_SECTION(CsmRegs,CsmRegsFile);volatile struct CSM_REGS CsmRegs;#pragma DATA_SECTION(CsmPwl,CsmPwlFile);volatile struct CSM_PWL CsmPwl;#pragma DATA_SECTION(FlashRegs,FlashRegsFile);volatile struct FLASH_REGS FlashRegs;#pragma DATA_SECTION(XintfRegs,XintfRegsFile);volatile struct XINTF_REGS XintfRegs;#pragma DATA_SECTION(XIntruptRegs,XIntruptRegsFile);volatile struct XINTRUPT_REGS XIntruptRegs;五 各应用函数的定义：1）DSP28_SysCtrl.c void InitSysCtrl(void) void KickDog(void)2）DSP28_DevEmu.c / Device Emulation Registers3）DSP28_Xintf.c / External Interface Registers void InitXintf(void)4）DSP28_CpuTimers.c / 32-bit CPU Timersvoid InitCpuTimers(void)void ConfigCpuTimer(struct CPUTIMER_VARS *Timer, float Freq, float Period)5）DSP28_PieCtrl.c / PIE Control Registersvoid InitPieCtrl(void)6）DSP28_PieVect.c / PIE Vector Tablevoid InitPieVectTable(void)7）DSP28_DefaultIsr.c / Software Prioritization for PIE Interrupts 包括各个中断函数的服务程序8）DSP28_Spi.c / SPI Registersvoid InitSpi(void)9）DSP28_Sci.c / SCI Registersvoid InitSci(void)10）DSP28_Mcbsp.c / McBSP Registersvoid InitMcbsp(void)11）DSP28_ECan.c / Enhanced eCAN Registersvoid InitECan(void)12）DSP28_Gpio.c / General Purpose I/O Registersvoid InitGpio(void)13）DSP28_Ev.c / Event Manager Registersvoid InitEv(void)14）DSP28_Adc.c / ADC Registersvoid InitAdc(void)15）DSP28_XIntrupt.c / External Interruptsvoid InitXIntrupt(void)16)DSP28_InitPeripherals.c /此函数中包括了对各个外设的初始化函数void InitPeripherals(void)六 在SEED-DEC2812中SRAM.cmd内容：MEMORYPAGE 0 : PRAMH0 : origin = 0x3f8000, length = 0x001000 PAGE 1 : /* SARAM */ RAMM0 : origin = 0x000000, length = 0x000400 RAMM1 : origin = 0x000400, length = 0x000400 /* Peripheral Frame 0: */ DEV_EMU : origin = 0x000880, length = 0x000180 FLASH_REGS : origin = 0x000A80, length = 0x000060 CSM : origin = 0x000AE0, length = 0x000010 XINTF : origin = 0x000B20, length = 0x000020 CPU_TIMER0 : origin = 0x000C00, length = 0x000008 CPU_TIMER1 : origin = 0x000C08, length = 0x000008 CPU_TIMER2 : origin = 0x000C10, length = 0x000008 PIE_CTRL : origin = 0x000CE0, length = 0x000020 PIE_VECT : origin = 0x000D00, length = 0x000100 /* Peripheral Frame 1: */ ECAN_A : origin = 0x006000, length = 0x000100 ECAN_AMBOX : origin = 0x006100, length = 0x000100 /* Peripheral Frame 2: */ SYSTEM : origin = 0x007010, length = 0x000020 SPI_A : origin = 0x007040, length = 0x000010 SCI_A : origin = 0x007050, length = 0x000010 XINTRUPT : origin = 0x007070, length = 0x000010 GPIOMUX : origin = 0x0070C0, length = 0x000020 GPIODAT : origin = 0x0070E0, length = 0x000020 ADC : origin = 0x007100, length = 0x000020 EV_A : origin = 0x007400, length = 0x000040 EV_B : origin = 0x007500, length = 0x000040 SPI_B : origin = 0x007740, length = 0x000010 SCI_B : origin = 0x007750, length = 0x000010 MCBSP_A : origin = 0x007800, length = 0x000040 /* CSM Password Locations */ CSM_PWL : origin = 0x3F7FF8, length = 0x000008 /* SARAM */ DRAMH0 : origin = 0x3f9000, length = 0x001000 SECTIONS /* Allocate program areas: */ .reset : PRAMH0, PAGE = 0 .text : PRAMH0, PAGE = 0 .cinit : PRAMH0, PAGE = 0 /* Allocate data areas: */ .stack : RAMM1, PAGE = 1 .bss : DRAMH0, PAGE = 1 .ebss : DRAMH0, PAGE = 1 .const : DRAMH0, PAGE = 1 .econst : DRAMH0, PAGE = 1 .sysmem : DRAMH0, PAGE = 1 /* Allocate Peripheral Frame 0 Register S