CCS5.4跑5509A串口例程的问题

ccb bcc

Mastermind 6821 points

我用CCS3.3跑5509A串口例程没问题，在CCS5.4上跑就不对。

从串口发送数据，收不到返回的数据。

我的配置如下：

请高手指教，谢谢！

11 年多前

0 ccb bcc 11 年多前

Mastermind 6821 points

高手支招啊！

0 ccb bcc 11 年多前回复 ccb bcc

Mastermind 6821 points

期待高手出现。

0 ccb bcc 11 年多前回复 ccb bcc

Mastermind 6821 points

谁来给我解答这个问题？

0 ccb bcc 11 年多前回复 ccb bcc

Mastermind 6821 points

现在又出现新的现象。我运行程序以后，只要一从串口调试助手发送数据，CCS的界面就变成这样：

0 ccb bcc 11 年多前回复 ccb bcc

Mastermind 6821 points

现在我观察变量，应该是0-9的，可是显示一个点。

如图：

0 Tony Tang 11 年多前回复 ccb bcc

TI__Guru 64206 points

ccb bcc 说：

现在又出现新的现象。我运行程序以后，只要一从串口调试助手发送数据，CCS的界面就变成这样：

从map文件看这个地址是你的有效程序空间吗？是跑飞了还是停在库文件里，而看不到源码而已？

你的串口是外扩的，还是用McBSP模拟的？你可以跟踪一下你的程序的，比如看数据能否收到，再看数据对不对（数据对不对，一般可能是波特率的问题）。

0 Tony Tang 11 年多前回复 ccb bcc

TI__Guru 64206 points

ccb bcc 说：

现在我观察变量，应该是0-9的，可是显示一个点。

如图：

从上面看这是发送数据，应该说是你发的什么就是什么，是不是前面有一步码的转换过程？另外，你直接看内存0x002050的值是不是你写的值啊。

0 ccb bcc 11 年多前回复 Tony Tang

Mastermind 6821 points

是MCBSP模拟的。

0 Tony Tang 11 年多前回复 ccb bcc

TI__Guru 64206 points

#1. 程序能一直正常运行吗？

#2. 接收的话McBSP的rrdy能等到吗？

#3. 是用中断，还是查询？

#4. 是不是两端速度不匹配造成的？

0 ccb bcc 11 年多前回复 ccb bcc

Mastermind 6821 points

这是我CMD文件：

/**********************************************************/
/*                                                        */
/*         LINKER command file for LEAD3 memory map       */
/*                                                        */
/**********************************************************/

MEMORY
{
PAGE 0:

        MMR     : origin = 0000000h, length = 00000c0h
        SPRAM   : origin = 00000c0h, length = 0000040h
        VECS    : origin = 0000100h, length = 0000100h
        DARAM0 : origin = 0000200h, length = 0003E00h
        DARAM1 : origin = 0004000h, length = 0004000h
        DARAM2 : origin = 0008000h, length = 0004000h
        DARAM3 : origin = 000c000h, length = 0004000h

        SARAM0 : origin = 0010000h, length = 0004000h
        SARAM1 : origin = 0014000h, length = 0005000h
        SARAM2 : origin = 0019000h, length = 0003000h
        SARAM3 : origin = 001c000h, length = 0004000h
        SARAM4 : origin = 0020000h, length = 0004000h
        SARAM5 : origin = 0024000h, length = 0004000h
        SARAM6 : origin = 0028000h, length = 0004000h
        SARAM7 : origin = 002c000h, length = 0004000h
        SARAM8 : origin = 0030000h, length = 0004000h
        SARAM9 : origin = 0034000h, length = 0004000h
        SARAM10 : origin = 0038000h, length = 0004000h
        SARAM11 : origin = 003c000h, length = 0004000h
        SARAM12 : origin = 0040000h, length = 0004000h
        SARAM13 : origin = 0044000h, length = 0004000h
        SARAM14 : origin = 0048000h, length = 0004000h
        SARAM15 : origin = 004c000h, length = 0004000h

        CE0     : origin = 0050000h, length = 03b0000h
        CE1     : origin = 0400000h, length = 0400000h
        CE2     : origin = 0800000h, length = 0400000h
        CE3     : origin = 0c00000h, length = 03f8000h

        PDROM   : origin = 0ff8000h, length = 07f00h
   /*   VECS    : origin = 0ffff00h, length = 00100h */ /* reset vector */
}

SECTIONS
{
        vectors : {} > VECS   PAGE 0         /* interrupt vector table */
        .cinit   : {} > SARAM0 PAGE 0
        .text    : {} > SARAM1 PAGE 0
        isrs     : {} > SARAM2 PAGE 0

        .stack   : {} > DARAM0 PAGE 0
        .sysstack: {} > DARAM0 PAGE 0
        .sysmem : {} > DARAM1 PAGE 0
        .data    : {} > DARAM1 PAGE 0
        .bss     : {} > DARAM1 PAGE 0
        .const   : {} > DARAM1 PAGE 0

.cio : {} > DARAM1 PAGE 0
.csldata: {} > DARAM0 PAGE 0

}

0X002050地址的值是对的。

0 ccb bcc 11 年多前回复 ccb bcc

Mastermind 6821 points

一直能正常运行，用中断。

现在我把程序改了，只发送。

程序如下：

/*
* UART.C
*
* Created on: 2014-12-23
*      Author: Administrator
*/
/*----------------------------------------------------------------------------*/
/* DESCRIPTION:                  */
/*                       */
/* This is an example for EMIF of C5509A             */
/*----------------------------------------------------------------------------*/
/* MODULE NAME... Mcbsp              */
/* FILENAME...... uart.c                 */
/* DATE CREATED.. Mon 02/4/2004                 */
/* COMPONENT.....                  */
/* PREREQUISITS..                  */
/*----------------------------------------------------------------------------*/
/* DESCRIPTION:                  */
/*                       */
/* this example is that the software uart is done by Mcbsp */
/*----------------------------------------------------------------------------*/

#include <csl.h>
#include <csl_pll.h>
#include <csl_mcbsp.h>
#include <csl_irq.h>

#include <csl_timer.h>

#include <stdio.h>

//设置McBSP的PCR寄存器指针，用于读写其I/O端口
ioport unsigned int *PCR_1=(unsigned int *)0x2c12;
#define REG_PCR1 (*PCR_1)

/*锁相环的设置*/
PLL_Config myConfig      = {
0,    //IAI: the PLL locks using the same process that was underway
                //before the idle mode was entered
1,    //IOB: If the PLL indicates a break in the phase lock,
                //it switches to its bypass mode and restarts the PLL phase-locking
                //sequence
12,    //PLL multiply value; multiply 12 times
0             //Divide by 1 PLL divide value; it can be either PLL divide value
                //(when PLL is enabled), or Bypass-mode divide value
                //(PLL in bypass mode, if PLL multiply value is set to 1)
};

/****************************设置Timer********************************/
/* 参考: TMS320VC5509 DSP Timers Reference Guide
         TMS320C55x Chip Support Library API Reference Guide (Rev. J)
   HX-5509A 开发板使用手册                                     */
//---------Global data definition---------//
#define TIMER_CTRL    TIMER_TCR_RMK(\
      TIMER_TCR_IDLEEN_DEFAULT,    /* IDLEEN == 0 */ \
      TIMER_TCR_FUNC_OF(0),        /* FUNC   == 0 */ \
      TIMER_TCR_TLB_RESET,         /* TLB    == 1 */ \
      TIMER_TCR_SOFT_BRKPTNOW,     /* SOFT   == 0 */ \
      TIMER_TCR_FREE_WITHSOFT,     /* FREE   == 0 */ \
      TIMER_TCR_PWID_OF(0),        /* PWID   == 0 */ \
      TIMER_TCR_ARB_RESET,         /* ARB    == 1 */ \
      TIMER_TCR_TSS_START,         /* TSS    == 0 */ \
      TIMER_TCR_CP_PULSE,          /* CP     == 0 */ \
      TIMER_TCR_POLAR_LOW,         /* POLAR == 0 */ \
      TIMER_TCR_DATOUT_0           /* DATOUT == 0 */ \
)

/* Create a TIMER configuration structure that can be passed */

/* to TIMER_config CSL function for initialization of Timer */

/* control registers. */
//产生1ms中断

TIMER_Config timCfg0 = {

TIMER_CTRL, /* TCR0 */

749, /* PRD0 */

0x0000 /* PRSC */

};

/* Create a TIMER_Handle object for use with TIMER_open */

TIMER_Handle mhTimer0;

Uint16 eventId0;

Uint16 timer0_cnt = 0;

int old_intm;

Uint16 tim_val;

//---------Function prototypes---------

/* Reference start of interrupt vector table */

/* This symbol is defined in file, vectors_timer1.s55 */

extern void VECSTART(void);

/* Function/ISR prototypes */

interrupt void timer0Isr(void);

/***********************************************************************/

/**************************McBSP1设置成GPIO*****************************/
/* 参考: TMS320C55x DSP Multichannel Buffered Serial Port (McBSP) Reference Guide
HX-5509A 开发板使用手册
TMS320C55x Chip Support Library API Reference Guide (Rev. J) */
MCBSP_Config Mcbsptest;

MCBSP_Config Mcbsp1Config = {
MCBSP_SPCR1_RMK(
    MCBSP_SPCR1_DLB_OFF,                   /* DLB    = 0,禁止自闭环方式 */
    MCBSP_SPCR1_RJUST_LZF,                 /* RJUST = 2 */
    MCBSP_SPCR1_CLKSTP_DISABLE,            /* CLKSTP = 0 */
    MCBSP_SPCR1_DXENA_ON,                  /* DXENA = 1 */
    0,                                     /* ABIS   = 0 */
    MCBSP_SPCR1_RINTM_RRDY,                /* RINTM = 0 */
    0,                                     /* RSYNCER = 0 */
    MCBSP_SPCR1_RRST_DISABLE               /* RRST   = 0 */
   ),
    MCBSP_SPCR2_RMK(
    MCBSP_SPCR2_FREE_NO,                   /* FREE   = 0 */
    MCBSP_SPCR2_SOFT_NO,                   /* SOFT   = 0 */
    MCBSP_SPCR2_FRST_FSG,                  /* FRST   = 0 */
    MCBSP_SPCR2_GRST_CLKG,                 /* GRST   = 0 */
    MCBSP_SPCR2_XINTM_XRDY,                /* XINTM = 0 */
    0,                                     /* XSYNCER = N/A */
    MCBSP_SPCR2_XRST_DISABLE               /* XRST   = 0 */
   ),
   /*单数据相，接受数据长度为16位,每相2个数据*/
MCBSP_RCR1_RMK(
MCBSP_RCR1_RFRLEN1_OF(1),              /* RFRLEN1 = 1 */
MCBSP_RCR1_RWDLEN1_16BIT               /* RWDLEN1 = 2 */
),
MCBSP_RCR2_RMK(
    MCBSP_RCR2_RPHASE_SINGLE,              /* RPHASE = 0 */
    MCBSP_RCR2_RFRLEN2_OF(0),              /* RFRLEN2 = 0 */
    MCBSP_RCR2_RWDLEN2_8BIT,               /* RWDLEN2 = 0 */
    MCBSP_RCR2_RCOMPAND_MSB,               /* RCOMPAND = 0 */
    MCBSP_RCR2_RFIG_YES,                   /* RFIG    = 0 */
    MCBSP_RCR2_RDATDLY_1BIT                /* RDATDLY = 1 */
    ),
   MCBSP_XCR1_RMK(
    MCBSP_XCR1_XFRLEN1_OF(1),              /* XFRLEN1 = 1 */
    MCBSP_XCR1_XWDLEN1_16BIT               /* XWDLEN1 = 2 */

),
MCBSP_XCR2_RMK(
    MCBSP_XCR2_XPHASE_SINGLE,              /* XPHASE = 0 */
    MCBSP_XCR2_XFRLEN2_OF(0),              /* XFRLEN2 = 0 */
    MCBSP_XCR2_XWDLEN2_8BIT,               /* XWDLEN2 = 0 */
    MCBSP_XCR2_XCOMPAND_MSB,               /* XCOMPAND = 0 */
    MCBSP_XCR2_XFIG_YES,                   /* XFIG    = 0 */
    MCBSP_XCR2_XDATDLY_1BIT                /* XDATDLY = 1 */
),
MCBSP_SRGR1_DEFAULT,
MCBSP_SRGR2_DEFAULT,
MCBSP_MCR1_DEFAULT,
MCBSP_MCR2_DEFAULT,
MCBSP_PCR_RMK(
   MCBSP_PCR_IDLEEN_RESET,                 /* IDLEEN   = 0   */
   MCBSP_PCR_XIOEN_GPIO,                   /* XIOEN    = 1   */
   MCBSP_PCR_RIOEN_GPIO,                   /* RIOEN    = 1   */
   MCBSP_PCR_FSXM_EXTERNAL,                /* FSXM     = 0   */
   MCBSP_PCR_FSRM_EXTERNAL,                /* FSRM     = 0   */
   MCBSP_PCR_CLKXM_INPUT,                  /* CLKXM    = 0   */
   MCBSP_PCR_CLKRM_INPUT,                  /* CLKRM    = 0   */
   MCBSP_PCR_SCLKME_NO,                    /* SCLKME   = 0   */
   MCBSP_PCR_DXSTAT_1,                     /* DXSTAT   = 1   */
   MCBSP_PCR_FSXP_ACTIVEHIGH,              /* FSXP     = 0   */
   MCBSP_PCR_FSRP_ACTIVEHIGH,              /* FSRP     = 1   */
   MCBSP_PCR_CLKXP_FALLING,                /* CLKXP    = 1   */
   MCBSP_PCR_CLKRP_RISING                  /* CLKRP    = 1   */
),
MCBSP_RCERA_DEFAULT,
MCBSP_RCERB_DEFAULT,
MCBSP_RCERC_DEFAULT,
MCBSP_RCERD_DEFAULT,
MCBSP_RCERE_DEFAULT,
MCBSP_RCERF_DEFAULT,
MCBSP_RCERG_DEFAULT,
MCBSP_RCERH_DEFAULT,
MCBSP_XCERA_DEFAULT,
MCBSP_XCERB_DEFAULT,
MCBSP_XCERC_DEFAULT,
MCBSP_XCERD_DEFAULT,
MCBSP_XCERE_DEFAULT,
MCBSP_XCERF_DEFAULT,
MCBSP_XCERG_DEFAULT,
MCBSP_XCERH_DEFAULT
};

MCBSP_Handle hMcbsp;
/***********************************************************************/

Uint16 i,temp;

unsigned char timer0_cnten;
unsigned char uart_rec, uart_send, uart_recflag, uart_sendflag;
unsigned char uart_bitscan, uart_bitcnt, uart_recstart, uart_sendbitcnt;
unsigned char uart_bitsend, uart_bitsendcnt, uart_sendcnten, uart_sendend;

void delay(Uint32 k)
{
while(k--);
}

void settimer(void)
{
/* Set IVPH/IVPD to start of interrupt vector table */
/*修改寄存器IVPH，IVPD，重新定义中断向量表*/
IRQ_setVecs((Uint32)(&VECSTART));

/* Temporarily disable all maskable interrupts */

old_intm = IRQ_globalDisable();

/* Open Timer 0, set registers to power on defaults */

mhTimer0 = TIMER_open(TIMER_DEV0, TIMER_OPEN_RESET);

/* Get Event Id associated with Timer 0, for use with */

/* CSL interrupt enable functions. */

eventId0 = TIMER_getEventId(mhTimer0);

/* Clear any pending Timer interrupts */

IRQ_clear(eventId0);

/* Place interrupt service routine address at */

/* associated vector location */

IRQ_plug(eventId0,&timer0Isr);

/* Write configuration structure values to Timer control regs */

TIMER_config(mhTimer0, &timCfg0);

/* Enable Timer interrupt */

IRQ_enable(eventId0);

/* Enable all maskable interrupts */

IRQ_globalEnable();

    timer0_cnten = 0;
    uart_bitscan = 0;
    uart_bitcnt = 0;

uart_recstart = 0;
uart_recflag = 0;
uart_sendflag = 0;

/* Start Timer */

TIMER_start(mhTimer0);

}

void main(void)
{
    /* Initialize CSL library - This is REQUIRED !!! */
    /*初始化CSL库*/
    CSL_init();

/*设置系统的运行速度为144MHz*/
PLL_config(&myConfig);

/*初始化McBSP1*/
hMcbsp = MCBSP_open(MCBSP_PORT1,MCBSP_OPEN_RESET);
/*设置McBSP1*/
MCBSP_config(hMcbsp,&Mcbsp1Config);

MCBSP_getConfig(hMcbsp,&Mcbsptest);

settimer();
uart_bitsendcnt = 0;
uart_sendend = 0;
uart_sendcnten = 0;
uart_bitsend = 0;
uart_send = 0X0;
uart_sendflag = 1;
uart_sendbitcnt = 0;
/*************************以下程序实现软件Uart************************/
/* 参考：HX-5509A 开发板使用手册 */
while(TRUE)
{

};
}

interrupt void timer0Isr(void)

{

temp = REG_PCR1;

//Send
if(uart_sendflag==1)
{
  if(uart_sendcnten==0)
  {
   REG_PCR1 &= 0xffdf;
   uart_bitsend = 1;
   uart_sendcnten = 1;
  }
  if(uart_sendcnten==1)
  {
   uart_bitsendcnt++;
   if(uart_bitsendcnt==10)
   {
    uart_sendbitcnt++;
    if(uart_sendend==1)
    {
     uart_sendflag = 0;
    }
    else
    {
     if(uart_sendbitcnt<9)
     {
      if((uart_send & uart_bitsend)==0)
      {
       REG_PCR1 &= 0xffdf;
      }
      else
      {
       REG_PCR1 |= 0x0020;
      }
      uart_bitsend <<= 1;
     }
     else
     {
      REG_PCR1 |= 0x0020;
                        uart_sendflag = 0;
     }
    }
    uart_bitsendcnt = 0;
   }
  }
}

}

/******************************************************************************\
* End of uart.c
\******************************************************************************/

cmd文件也改了，是这样：

MEMORY
{
PAGE 0:

        PDROM   : origin = 0ff8000h, length = 07f00h
   /*   VECS    : origin = 0ffff00h, length = 00100h */ /* reset vector */
}

SECTIONS
{
        vectors : {} > VECS   PAGE 0         /* interrupt vector table */
        .cinit   : {} > SARAM0 PAGE 0
        .text    : {} > SARAM1 PAGE 0
        isrs     : {} > SARAM2 PAGE 0

        .stack   : {} > SARAM4 PAGE 0
        .sysstack: {} > SARAM4 PAGE 0
        .sysmem : {} > SARAM5 PAGE 0
        .data    : {} > SARAM3 PAGE 0
        .bss     : {} > SARAM3 PAGE 0
        .const   : {} > SARAM6 PAGE 0

.cio : {} > SARAM6 PAGE 0
.csldata: {} > SARAM7 PAGE 0

}

CMD文件改的是都在SARAM区。

我uart_send是发送的值，我给这个变量赋0x55,0,1,可以发出数来，但都是0xf8。