28377S sci串口通信

user5771526

Other Parts Discussed in Thread: CONTROLSUITE

小白一枚，我想把蓝牙模块和28377s通过sci串口建立通讯，串口透传模式，利用fifo模式下的查询发，中断收。目前的问题一直收不到，而且发送可能也不对，能帮忙来看看哪里配置不对吗

#include "F28x_Project.h"
void InitscibGpio();
void scib_fifo_init();
void scib_xmit(int c);
void scib_msg(char *msg);
interrupt void ScibRxFIFOIsr(void);
char buffer[100];
char *msg;
Uint16 ReceivePointer;

void main(void)
{
    InitSysCtrl();
    InitGpio();
    InitscibGpio();
    DINT;
    InitPieCtrl();
    IER = 0x0000;
    IFR = 0x0000;
    InitPieVectTable();
    EALLOW;
    PieVectTable.SCIB_RX_INT = &ScibRxFIFOIsr;
    EDIS;
    scib_fifo_init();
    PieCtrlRegs.PIECTRL.bit.ENPIE = 1;
    PieCtrlRegs.PIEIER9.bit.INTx3=1;
    IER = 0x100;
    EINT;
    msg="AT:BPS?\r\n";
    while(1)
    {
        scib_msg(msg);
    }

}
void InitscibGpio() //初始化GPIO管脚
{
EALLOW;

GpioCtrlRegs.GPAPUD.bit.GPIO18 = 0;
GpioCtrlRegs.GPAPUD.bit.GPIO19 = 0;

GpioCtrlRegs.GPAQSEL2.bit.GPIO19 = 3;

GpioCtrlRegs.GPAMUX2.bit.GPIO18 = 2;
GpioCtrlRegs.GPAMUX2.bit.GPIO19 = 2;

GpioCtrlRegs.GPAGMUX2.bit.GPIO18 = 0;
GpioCtrlRegs.GPAGMUX2.bit.GPIO19 = 0;

    EDIS;
}
void scib_fifo_init()
{
    ScibRegs.SCICCR.all =0x0007; // 1 stop bit, No loopback
                                 // No parity,8 char bits,
                                 // async mode, idle-line protocol
    ScibRegs.SCICTL1.all =0x0003;// enable TX, RX, internal sciaLK,
                                 // Disable RX ERR, SLEEP, TXWAKE
    ScibRegs.SCICTL2.bit.RXBKINTENA =1;//接收中断使能
    ScibRegs.SCIHBAUD.all = 0x0000; // 115200 baud @LSPCLK = 50MHz.
    ScibRegs.SCILBAUD.all = 0x0035;
    ScibRegs.SCIFFTX.all=0xE040;
    ScibRegs.SCIFFRX.all=0x0062;
    ScibRegs.SCIFFCT.all=0x00;
    ScibRegs.SCICTL1.all =0x0023; // Relinquish SCI from Reset
    ScibRegs.SCIFFTX.bit.TXFIFORESET=1;
    ScibRegs.SCIFFRX.bit.RXFIFORESET=1;
}

void scib_xmit(int c)
{
    while(ScibRegs.SCIFFTX.bit.TXFFST >= 15){}
    ScibRegs.SCITXBUF.all = c;
}
void scib_msg(char *msg)
{
    int i;
    i = 0;
    while( msg[i]!='\0')
    {
        scib_xmit(msg[i]);
        i++;
    }
}
interrupt void ScibRxFIFOIsr(void)
{
    ReceivePointer = 0;
    while(ScibRegs.SCIFFRX.bit.RXFFST)
    {
        buffer[ReceivePointer++] = ScibRegs.SCIRXBUF.all;
    }
    ScibRegs.SCIFFRX.bit.RXFFOVRCLR=1;   // Clear Overflow flag
    ScibRegs.SCIFFRX.bit.RXFFINTCLR=1;   // Clear Interrupt flag

PieCtrlRegs.PIEACK.all|=0x100;
}

7 年多前