F28335串口通信SCI输出乱码问题

F28335的串口通讯SCI输出乱码，程序一个是别人试验过的，一个是自己编写的，输出都乱码，不知道为什么，求能人帮忙解答一下，谢谢。

第一个程序！

#include "DSP2833x_Device.h"// DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h"// DSP2833x Examples Include File

// Prototype statements for functions found within this file.
void scic_echoback_init(void);
void scic_fifo_init(void);
void scic_xmit(int a);
void scic_msg(char *msg);

// Global counts used in this example
Uint16 LoopCount;
Uint16 ErrorCount;

void main(void)
{Uint16 ReceivedChar;char *msg;

// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file.InitSysCtrl();

// Step 2. Initalize GPIO:
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.// InitGpio(); Skipped for this example

// For this example, only init the pins for the SCI-A port.
// This function is found in the DSP2833x_Sci.c file.InitScicGpio();InitXintf16Gpio();
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interruptsDINT;

// Initialize PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2833x_PieCtrl.c file.InitPieCtrl();

// Disable CPU interrupts and clear all CPU interrupt flags:IER = 0x0000;IFR = 0x0000;

// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example.  This is useful for debug purposes.
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
// This function is found in DSP2833x_PieVect.c.InitPieVectTable();

// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2833x_InitPeripherals.c
// InitPeripherals(); // Not required for this example

// Step 5. User specific code:LoopCount = 0;ErrorCount = 0;scic_fifo_init();// Initialize the SCI FIFOscic_echoback_init();  // Initalize SCI for echobackmsg = "\r\n\n\nHello Yan Xu!\0";scic_msg(msg);msg = "\r\nYou will enter a character, and the DSP will echo it back! \n\0";scic_msg(msg);

	for(;;){msg = "\r\nEnter a character: \0";scic_msg(msg);// Wait for inc characterwhile(ScicRegs.SCIRXST.bit.RXRDY !=1) { } // wait for XRDY =1 for empty state// Get characterReceivedChar = ScicRegs.SCIRXBUF.all;// Echo character backmsg = "  You sent: \0";scic_msg(msg);scic_xmit(ReceivedChar);LoopCount++;}

}


// Test 1,SCIA  DLB, 8-bit word, baud rate 0x000F, default, 1 STOP bit, no parity
void scic_echoback_init()
{// Note: Clocks were turned on to the SCIA peripheral// in the InitSysCtrl() function	ScicRegs.SCICCR.all =0x0007;// 1 stop bit,  No loopback// No parity,8 char bits,// async mode, idle-line protocol
	ScicRegs.SCICTL1.all =0x0003;  // enable TX, RX, internal SCICLK,// Disable RX ERR, SLEEP, TXWAKE
	ScicRegs.SCICTL2.all =0x0003;
	ScicRegs.SCICTL2.bit.TXINTENA = 1;
	ScicRegs.SCICTL2.bit.RXBKINTENA =1;
	#if (CPU_FRQ_150MHZ)ScicRegs.SCIHBAUD=0x0001;  // 9600 baud @LSPCLK = 37.5MHz.ScicRegs.SCILBAUD=0x00E7;
	#endif
	#if (CPU_FRQ_100MHZ)ScicRegs.SCIHBAUD=0x0001;  // 9600 baud @LSPCLK = 20MHz.ScicRegs.SCILBAUD=0x0044;
	#endif
	ScicRegs.SCICTL1.all =0x0023;  // Relinquish SCI from Reset
}

// Transmit a character from the SCI
void scic_xmit(int a)
{while (ScicRegs.SCICTL2.bit.TXRDY == 0) {}ScicRegs.SCITXBUF=a;

}

void scic_msg(char * msg)
{int i;i = 0;while(msg[i] != '\0'){scic_xmit(msg[i]);i++;}
}

// Initalize the SCI FIFO
void scic_fifo_init()
{ScicRegs.SCIFFTX.all=0x8000;
//ScicRegs.SCIFFRX.all=0x204f;
//ScicRegs.SCIFFCT.all=0x0;

}






//===========================================================================
// No more.
//===========================================================================

第二个程序！

#include "DSP2833x_Device.h" // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h" // DSP2833x Examples Include File
#define SCI 1
#define UART_INT 0
interrupt void scicTxFifoIsr(void);
void InitScicGpio(void);
void scic_fifo_init();
void error(void);
Uint16 sdataB[6]={9,5,1,0,2,0};
void main(void)
{
//Uint16 i;
InitSysCtrl();
//InitGpio();
//InitSciGpio();
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
InitScicGpio();
EALLOW;
PieVectTable.SCITXINTC = &scicTxFifoIsr;
EDIS;
//IER = M_INT8;
scic_fifo_init();
PieCtrlRegs.PIECTRL.bit.ENPIE = 1;//在DSP281x_PieVect文件的InitPieVectTable函数里有PieCtrlRegs.PIECRTL.bit.ENPIE = 1;//所以InitPieCtrl总是在InitPieVectTable的前面;在主函数中再写这么一句是多余的!
//PieCtrlRegs.PIEIER8.bit.INTx5=1;//使能SCIRXINTB
PieCtrlRegs.PIEIER8.bit.INTx6=1;//使能SCITXINTB
IER = M_INT8;//使能CPU中断
EINT;
for(;;);
}

interrupt void scicTxFifoIsr(void)
{
Uint16 i;
for(i=0;i<6;i++)//发送数据
{
ScicRegs.SCITXBUF=sdataB[i];
}

//ScicRegs.SCIFFTX.bit.TXFIFOXRESET=0;//复位FIFO
//ScicRegs.SCIFFTX.bit.TXFIFOXRESET=1;// 使能FIFO

ScicRegs.SCIFFTX.bit.TXFFINTCLR=1; //清除发送FIFO中断标志位,在此处如果清零会导致发送FIFO中断一直产生，因此要关闭才行
PieCtrlRegs.PIEACK.bit.ACK8 = 1;//通知可以接受第9组中断中的所有中断[第9组中断:SCI-A/SCI-B;第8组中断:SCI-C]
}

void scic_fifo_init()
{

ScicRegs.SCICCR.all =0x0007;//空闲线协议 / 8位数据
ScicRegs.SCICTL1.all =0x0002;//SCI接受和发送使能[发送使能置位数据才能通过SCITXD引脚发送;接收使能才能将接收到的字符复制到SCIRXEMU和SCIRXBUF]

ScicRegs.SCICTL2.bit.TXINTENA =1;//使能TXRDY中断,可以通过置位TXRDY标志位引发中断请求
//ScicRegs.SCICTL2.bit.RXBKINTENA =1;

ScicRegs.SCIHBAUD =0x0001;//波特率设置 9600
ScicRegs.SCILBAUD =0x00E7;

//ScicRegs.SCICCR.bit.LOOPBKENA =0;//屏蔽自测模式!!!

ScicRegs.SCIFFTX.all=0xE066;//C:SCI FIFO能继续发送或接收;SCI FIFO功能使能 | 2:使能TX FIFO中断
//ScicRegs.SCIFFTX.bit.TXFFIL = 6;
ScicRegs.SCIFFCT.all=0x00;

ScicRegs.SCICTL1.all =0x0022;//禁止SCI软件复位
ScicRegs.SCIFFTX.bit.TXFIFOXRESET=1;
//ScicRegs.SCIFFRX.bit.RXFIFORESET=1;
}
void error(void)
{
asm(" ESTOP0"); // Test failed!! Stop!
for (;;);
}

void InitScicGpio(void)
{
	EALLOW;
	GpioCtrlRegs.GPBPUD.bit.GPIO62 = 0;// 使能内部上拉功能
	GpioCtrlRegs.GPBPUD.bit.GPIO63 = 0;
	GpioCtrlRegs.GPBQSEL2.bit.GPIO62 = 3;//不同步采样
	GpioCtrlRegs.GPBQSEL2.bit.GPIO63 = 3;
	GpioCtrlRegs.GPBMUX2.bit.GPIO62 = 1;//配置GPIO62为SCIRXDC引脚
	GpioCtrlRegs.GPBMUX2.bit.GPIO63 = 1;//配置GPIO62为SCITXDC引脚
	GpioCtrlRegs.GPBDIR.bit.GPIO62=0;
	GpioCtrlRegs.GPBDIR.bit.GPIO63=1;
	EDIS;
}
//===========================================================================
// No more.
//===========================================================================

第二个程序的乱码！

Seven Han：这两个代码看着像TIcontrolsuite中的例程，调试时您需要注意以下几点：
1.gpio的配置
2.时钟配置
3.波特率设置
另外还建议您更换个串口软件试试。