DSP原理与应用课程设计-DA转换实验、数字波形产生、 数字图像处理、二维图形生成.doc

课程设计报告课程名称 DSP原理与应用 设计题目 D/A转换实验、数字波形产生、 数字图像处理、二维图形生成 专业、班级 学 号 姓 名 指导教师 设计时间 2011 年 10 月 07 日一、 引言目的：D/A转换实验：1熟悉D/A转换的基本原理；2掌握AD7303的技术指标和常用方法；3熟悉DSP的多通道缓冲串口配置为SPI的应用方法；4掌握并熟练使用DSP和AD7303的接口及其操作。数字波形产生实验：1、了解数字波形产生的基本原理；2、学习用C54x DSP芯片产生正弦信号的基本方法和步骤。数字图像处理实验：1了解数字图象处理的基本原理；2学习灰度图象二值化处理技；3学习灰度图象反色处理技术。二维图像生成实验：1.了解DSP的图形处理功能；2.掌握CCS的图形观察功能；3.学会简单的二维图形生成编程。设备：计算机，CCS 2.0版软件，DSP仿真器，实验箱，示波器。二、 正文实验步骤：1. 系统连接 进行dsp实验之前，先必须连接好仿真器、试验箱及计算机。2. 上电复位 在硬件安装完成后，确认安装正确、各实验部件及电源连接正常后，接通仿真器电源或启动计算机，此时，仿真盒上的“红色小灯”应该是亮的，否则说明dsp开发系统与计算机连接有问题。3. 运行CCS程序 待计算机启动成功后，实验箱上电，启动CCS，此时仿真器上的“绿色小灯”应点亮，CCS正常启动，证明系统连接正常；否则仿真器的连接、JTAG接口存在问题。关掉实验箱电源，检查仿真器的连接、JTAG接口连接。4、新建工程：ProjectNew给工程起名xf，放在E盘xf文件夹。5、把E盘dsp_usb文件夹下的“DSP常用文件”下的“EXP06-AD”文件中的vectors.asm、tms320uc5402.h、 tms320uc5402.cmd 、RTS.LIB 文件拷贝至刚才工程文件pjt所在文件夹下。（D/A转换实验需要DspRegDefine.h、UCOS_II.cmd、delay_3us.asm 二维图像生成实验需要STDIO.H、MATH.H、memory.cmd）6、新建源文件：FileNewSource File，保存为xf.c到上述文件夹下。7、把上述红色字体的文件添加到工程中去：ProjectAdd Files to(注意：头文件.h文件是不能直接添加的，需要在c文件中include才能出现在工程中)8、编写程序xf.c，完成后再修改中断向量文件vectors.asm，点击工具Compile，如果没有问题，则点击Build（构建），在Debug文件夹下生成.out文件9、上述无误后，点击FileLoad Program，下载.out文件，接着点击Run按钮，观察实验结果。D/A转换实验：1、单击“Run”运行程序一次，然后取消运行。2、打开一个图形观察窗口，以观察程序产生的波形。3、设置观察窗口参数，起始地址为data_buff，长度为256，16位整型。4、然后单击“Run”全速运行程序。5、用示波器检测“D/A转换单元的的2号孔接口“输出1”输出一个正弦波。程序清单：/-头文件-/#include MMRegs.h#include DspRegDefine.h /VC5402 寄存器定义#include math.h/-/* * 宏定义 */#define UCHAR unsigned char#define UINT16 unsigned int#define UINT32 unsigned long#define TRUE 1#define FALSE 0#define pi 3.1415926#define LEN 256/- AD7303 控制字 -/ 15-14-13-12-11-10-9-8-/ INT/EXT-X-LDAC-PDB-PDA-A/B-CR1-CR0-/ 参考电压-保留- -B省电-A省电-0/A-1/B-/- /-/* 端口定义 */-ioport UINT16 port8001; /定义输出io端口为0x8001;/-/-/* 全局变量定义 */-int data_buffLEN; /数据缓冲UINT16 show = 0x00aa; /LED显示的数值 /* * 所使用的函数原型 */void cpu_init(void); /初始化CPUvoid Delay(UINT16 numbers); /延迟extern void delay_3us(void); /3us延迟void mcbsp0_write_rdy(UINT16 out_data);/MCBSP0发送一个数据void mcbsp0_init_SPI(void);/MCBSP0设置为SPI模式void mcbsp0_close(void);/MCBSP0关闭/-/* 函数定义 */-/ 函数名称 : void cpu_init(void)/ 函数说明 : 初始化CPU/ 输入参数 : 无/ 输出参数 : 无/-void cpu_init(void)asm( nop );asm( nop );asm( nop );/-/CLKMD DEFINITIONS:/ PLLMUL (bit 15-12) - 0000 PLL multiplier = 0 (mult by 1)/ PLLDIV (bit 11) - 0 PLL divider = 0 (div by 1)/ PLLCOUNT (bit 10-3)- 11111111 PLL counter set to max/ PLLONOFF (bit 2) - 1 PLL on/ PLLNDIV (bit 1) - 1 Select PLL mode/ PLLSTATUS (bit 1) - x PLL Status (read only)/ -/ 0000011111111111 = 0x07ff CLKMD=1 X CLKIN/- *(unsigned int*)CLKMD=0x0; /switch to DIV mode clkout= 1/2 clkin while(*(unsigned int*)CLKMD)&01)!=0); *(unsigned int*)CLKMD=0x37ff; /switch to PLL X 4 mode/-/ ST0 DEFINITIONS:/ ARP (bit 15-13) - 000 Auxiliary register pointer/ TC (bit 12) - 1 Test/control flag/ C (bit 11) - 1 Carry is set to 1 if the result of an addition generates a carry; it is cleared to 0 if the/ result of a subtraction generates a borrow./ OVA (bit 10) - 0 Overflow flag for accumulator A/ OVB (bit 9) - 0 Overflow flag for accumulator B/ DP (bit 8-0) - 00000000 Data-memory page pointer/ -/ 0001 1000 0000 0000 =0x1800 Reset value/-/ *(unsigned int*)ST0=0x1800; /-/ ST1 DEFINITIONS:/ BRAF (bit 15) - 0 Block-repeat active flag / CPL (bit 14) - 1 Compiler mode CPL=0 DP;CPL=1 SP/ XF (bit 13) - 1 XF status/ HM (bit 12) - 0 Hold mode/ INTM (bit 11) - 1 Interrupt mode INTM=0,All unmasked interrupts are enabled/ Reser (bit 10) - 0 Always read as 0/ OVM (bit 9) - 0 Overflow mode/ SXM (bit 8) - 1 Sign-extension mode/ C16 (bit 7) - 0 Dual 16-Bit/double-precision arithmetic mode/ FRCT (bit 6) - 0 Fractional mode/ CMPT (bit 5) - 0 Compatibility mode/ ASM (bit 4-0) - 00000 Accumulator shift mode/ -/ 0110 1001 0000 0000 =0x2900 Reset value/-/ *(unsigned int*)ST1=0x6900;/- /IPTR DEFINITIONS?/ IPTR (bit 15-7) - 001111111 Run-time Interrupt vector location = 0x3f80 (for now)/ MP/MC (bit 6) - 1 Turn off internal Instruction ROM (use RAM)/ OVLY (bit 5) - 1 Turn on internal RAM/ AVIS (bit 4) - 1 Address visibility on/ DROM (bit 3) - 0 Data ROM of FF00FFFF is external / CLKOFF (bit 2) - 0 Clockout enabled,only for use clkout=cpu clock/ SMUL (bit 1) - 1 Saturate before multiply on MAC/ SST (bit 0) - 0 Do not saturate before store/ -/ 0011 1111 1111 0010 = 0x3ff2/*-*/*(unsigned int*)PMST=0x3FF2;/-/ SWWSR DEFINITIONS?/ XPA (bit 15) - 0 Extended program address control bit. XPA is used in conjunction with the program space fields/ (bits 0 through 5) to select the address range for program space wait states/ I/O (bits 14-12) - 111 set to max wait states for seven/ Data1 (bits 11-9) - 111 Seven Wait state for Upper data space(0x8000-0xFFFF) / Data2 (bits 8-6) - 111 Seven Wait states for Lower data space (0x0000 - 0x7FFF)/ Prog1 (bits 5-3) - 111 Seven Wait state for Upper program space. (xx8000-xxFFFF)/ Prog2 (bits 2-0) - 111 Seven Wait states for Program space. (xx0000-xx7FFF)/ -/ 1 111 111 111 111 111 - 0x7fff/*-*/*(unsigned int*)SWWSR=0x7fff;/-/SWCR DEFINITIONS?/ Reserved (bits 15-1)/ SWSM (bit 0) - 1 wait-state base values are mulitplied by 2/ for a maximum of 14 wait states./ -/ 0000 0000 0000 0001/-*(unsigned int*)SWCR=0x0001;/-/BSCR DEFINITIONS?/ BNKCMP (bit 15-12) - 1111 Bank compare. Determines the external memory-bank size. BNKCMP is used to mask the four MSBs of/ an address./ 1111 4k/ 1110 8k/ 1100 16k/ 1000 32k/ 0000 64k/ PS-DS (bit 11) - 1 One extra cycle is inserted between consecutive data and program reads. / Reserved (bits 10-3) - 00000000/ HBH (bit 2) - 0 The hpi bus holder is disabled/ BH (bit 1) - 0 The data bus holder is disabled/ EXIO (bit 0) - 0 The external bus interface functions as usual/ -/ 1111 1000 0000 0000/- *(unsigned int*)BSCR=0xf800;/-asm( ssbx intm ); /Disable all mask interrupts /-/ IMR DEFINITIONS/ Writing a 1 to any IMR bit position enables the corresponding interrupt (when INTM = 0)/ Reserved (bits 15-14) - xx/ DMAC5 (bit 13) - 0 DMA channel 5 interrupt mask bit / DMAC4 (bit 12) - 0 DMA channel 4 interrupt mask bit/ BXINT1/DMAC3 (bit 11) - 0 McBSP1 transmit interrupt mask bit, or the DMA channel 3 / BRINT1/DMAC2 (bit 10) - 0 McBSP1 receive interrupt mask bit, or the DMA channel 2/ HPINT (bit 9) - 0 Host to 54x interrup /mask/ INT3 (bit 8) - 0 External interrupt 3 mask/ TINT1/DMAC1 (bit 7) - 0 timer1 interrupt mask bit, or the DMA channel 1 interrupt mask bit / DMAC0 (bit 6) - 0 reserved, or the DMA channel 0 interrupt mask bit/ BXINT0 (bit 5) - 0 McBSP0 transmit interrupt mask bit/ BRINT0 (bit 4) - 0 McBSP0 receive interrupt mask bit/ TINT0 (bit 3) - 0 Timer 0 interrupt mask bit/ INT2 (bit 2) - 0 External interrupt 2 mask bit/ INT1 (bit 1) - 0 External interrupt 1 mask bit/ INT0 (bit 0) - 0 External interrupt 0 mask bit/ -/ 0000 0000 0000 0000/-*(unsigned int*)IMR=0x0;/-/ IFR DEFINITIONS/ Writing a 1 to any IFR bit position clear the corresponding interrupt mask ,when corresponding interrupt occur IFR corresponding bit=1/ Reserved (bits 15-14) - xx/ DMAC5 (bit 13) - 1 DMA channel 5 interrupt flag bit / DMAC4 (bit 12) - 1 DMA channel 4 interrupt flag bit/ BXINT1/DMAC3 (bit 11) - 1 McBSP1 transmit interrupt flag bit, or the DMA channel 3 / BRINT1/DMAC2 (bit 10) - 1 McBSP1 receive interrupt flag bit, or the DMA channel 2/ HPINT (bit 9) - 1 Host to 54x interrutpflak/ INT3 (bit 8) - 1 External interrupt 3 flag/ TINT1/DMAC1 (bit 7) - 1 timer1 interrupt flag bit, or the DMA channel 1 interrupt mask bit / DMAC0 (bit 6) - 1 reserved, or the DMA channel 0 interrupt flag bit/ BXINT0 (bit 5) - 1 McBSP0 transmit interrupt flag bit/ BRINT0 (bit 4) - 1 McBSP0 receive interrupt flag bit/ TINT0 (bit 3) - 1 Timer 0 interrupt flag bit/ INT2 (bit 2) - 1 External interrupt 2 flag bit/ INT1 (bit 1) - 1 External interrupt 1 flag bit/ INT0 (bit 0) - 1 External interrupt 0 flag bit/ -/ 1111 1111 1111 1111/*-*/*(unsigned int*)IFR=0xffff;/- asm( nop );asm( nop );asm( nop ); /*- 函数名称 : void Delay(int numbers)- 函数说明 : 延时- 输入参数 : numbers- 输出参数 : 无*/void Delay(UINT16 numbers) UINT16 i,j; for(i=0;i4000;i+) for(j=0;jnumbers;j+);/*- 函数名称 : void mcbsp0_write_rdy(UINT16 out_data);- 函数说明 : MCBSP0发送一个数据- 输入参数 : data- 输出参数 : 无- 补充说明 : 内部带是否发送完成的判断*/void mcbsp0_write_rdy(UINT16 out_data) UINT16 j; *(unsigned int*)McBSP0_SPSA=0x0001; /McBSP0_SPSA 指向 SPCR2 while (*(unsigned int *)McBSP0_SPSD&0x0002)=0); /mask XRDY bit,XRDY = 1 Transmitter is ready for new data in DXR1,2. for(j=0;j20;j+); /delay *(unsigned int *)McBSP0_DXR1= out_data; /*- 函数名称 : void mcbsp0_init_SPI(void);- 函数说明 : MCBSP0设置为SPI模式- 输入参数 : 无- 输出参数 : 无- 补充说明 : */void mcbsp0_init_SPI(void) /- /复位 McBSP0 *(unsigned int*)McBSP0_SPSA=0x0000;/SPCR1 *(unsigned int*)McBSP0_SPSD=0x0000;/设置SPCR1.0(RRST=0) *(unsigned int*)McBSP0_SPSA=0x0001;/SPCR2 *(unsigned int*)McBSP0_SPSD=0x0000;/设置SPCR1.0(XRST=0) /- /延迟 Delay(0); /延迟 4000*CPU 时钟周期 /等待复位稳定 /- /配置 McBSP0为 SPI 模式 *(unsigned int*)McBSP0_SPSA=0x0000;/SPCR1 *(unsigned int*)McBSP0_SPSD=0x1800; /DLB (bit 15) 0 Digital loop back mode disabled /RJUST (bit 14-13) 00 Right-justify and zero-fill MSBs in DRR1,2 /CLKSTP (bit 12-11) 11 /X (bit 10-8) 000 Reserved /DXENA (bit 7) 0 data transmit delay bit.DX enabler is off /ABIS (bit 6) 0 A-bis mode is disabled /RINTM (bit 5-4) 00 RINT driven by RRDY /RSYNER (bit 3) 0 No synchronization error /RFULL (bit 2) 0 RBR1,2 is not in overrun condition /RRDY (bit 1) 0 Receiver is not ready /RRST (bit 0) 0 Serial port receiver is disabled and in reset state /- 0001 1000 0000 0000 *(unsigned int*)McBSP0_SPSA=0x0001;/SPCR2 *(unsigned int*)McBSP0_SPSD=0x0000; /X (bit 15-10) 000000 Reseved /FREE (bit 9) 0 Free running mode is disabled /SOFT (bit 8) 0 SOFT mode is disabled /FRST (bit 7) 0 Frame-synchronization logic is reset. /GRST (bit 6) 0 Sample rate generator is reset /XINTM (bit 5-4) 00 XINT driven by XRDY /XSYNER (bit 3) 0 No synchronization error /XEMPTY (bit 2) 0 XSR1,2 is empty /XRDY (bit 1) 0 Transmitter is not ready /XRST (bit 0) 0 serial port transmitter is disabled and in reset state /- 0000 0000 0000 0000 *(unsigned int*)McBSP0_SPSA=0x000E;/PCR *(unsigned int*)McBSP0_SPSD=0x0A0C; /X (bit 15-14) 00 Reseved /XIOEN (bit 13) 0 DX, FSX and CLKX are configured as serial port /RI