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📄 2808ecana.c

📁 2808程序
💻 C
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#include "DSP280x_Device.h"     // DSP280x Headerfile Include File
#include "DSP280x_Examples.h"   // DSP280x Examples Include File

// Prototype statements for functions found within this file.
void mailbox_check(int32 T1, int32 T2, int32 T3);
void mailbox_read(int16 i);

// Global variable for this example
Uint32  ErrorCount;
Uint32  PassCount;
Uint32  MessageReceivedCount;

Uint32  TestMbox1 = 0;
Uint32  TestMbox2 = 0;
Uint32  TestMbox3 = 0;
unsigned long int i=0;
void IOinit(void);
void LedOut(Uint32 led);
int KeyIn(void);
 Uint16  j;
 struct ECAN_REGS ECanaShadow;
void main(void)
{
    Uint32 keyNum;               //  按键次数
    keyNum = 0x00000000;
   InitSysCtrl();
   InitECanGpio();
   DINT;
   InitPieCtrl();
   IER = 0x0000;
   IFR = 0x0000;
   IOinit();	                 // I/O初始化子程序
   LedOut(keyNum);           // 16个LED都熄灭
    while (1)
	{
 	    while (KeyIn()!=1)      //  调用查键子程序
 	    {
 	    	
 	    }
   InitPieVectTable();
    MessageReceivedCount = 0;
    ErrorCount = 0;
    PassCount = 0;

	InitECana(); // Initialize eCAN-A module
    ECanaMboxes.MBOX0.MSGID.all = 0x9555AAA0;
    ECanaMboxes.MBOX1.MSGID.all = 0x9555AAA1;
    ECanaMboxes.MBOX2.MSGID.all = 0x9555AAA2;
    ECanaMboxes.MBOX3.MSGID.all = 0x9555AAA3;
    ECanaMboxes.MBOX4.MSGID.all = 0x9555AAA4;
    ECanaMboxes.MBOX5.MSGID.all = 0x9555AAA5;
    ECanaMboxes.MBOX6.MSGID.all = 0x9555AAA6;
    ECanaMboxes.MBOX7.MSGID.all = 0x9555AAA7;
    ECanaMboxes.MBOX8.MSGID.all = 0x9555AAA8;
    ECanaMboxes.MBOX9.MSGID.all = 0x9555AAA9;
    ECanaMboxes.MBOX10.MSGID.all = 0x9555AAAA;
    ECanaMboxes.MBOX11.MSGID.all = 0x9555AAAB;
    ECanaMboxes.MBOX12.MSGID.all = 0x9555AAAC;
    ECanaMboxes.MBOX13.MSGID.all = 0x9555AAAD;
    ECanaMboxes.MBOX14.MSGID.all = 0x9555AAAE;
    ECanaMboxes.MBOX15.MSGID.all = 0x9555AAAF;

    ECanaRegs.CANMD.all = 0x00000000;
    ECanaRegs.CANME.all = 0xFFFFFFFF;


    // Specify that 8 bits will be sent/received
    ECanaMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX1.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX2.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX3.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX4.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX5.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX6.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX7.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX8.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX9.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX10.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX11.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX12.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX13.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX14.MSGCTRL.bit.DLC = 8;
    ECanaMboxes.MBOX15.MSGCTRL.bit.DLC = 8;



// Write to the mailbox RAM field of MBOX0 - 15
    ECanaMboxes.MBOX0.MDL.all = 0x3;
    ECanaMboxes.MBOX0.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX1.MDL.all = 0x9555AAA1;
    ECanaMboxes.MBOX1.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX2.MDL.all = 0x9555AAA2;
    ECanaMboxes.MBOX2.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX3.MDL.all = 0x9555AAA3;
    ECanaMboxes.MBOX3.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX4.MDL.all = 0x9555AAA4;
    ECanaMboxes.MBOX4.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX5.MDL.all = 0x9555AAA5;
    ECanaMboxes.MBOX5.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX6.MDL.all = 0x9555AAA6;
    ECanaMboxes.MBOX6.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX7.MDL.all = 0x9555AAA7;
    ECanaMboxes.MBOX7.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX8.MDL.all = 0x9555AAA8;
    ECanaMboxes.MBOX8.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX9.MDL.all = 0x9555AAA9;
    ECanaMboxes.MBOX9.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX10.MDL.all = 0x9555AAAA;
    ECanaMboxes.MBOX10.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX11.MDL.all = 0x9555AAAB;
    ECanaMboxes.MBOX11.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX12.MDL.all = 0x9555AAAC;
    ECanaMboxes.MBOX12.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX13.MDL.all = 0x9555AAAD;
    ECanaMboxes.MBOX13.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX14.MDL.all = 0x9555AAAE;
    ECanaMboxes.MBOX14.MDH.all = 0x89ABCDEF;

    ECanaMboxes.MBOX15.MDL.all = 0x9555AAAF;
    ECanaMboxes.MBOX15.MDH.all = 0x89ABCDEF;

    EALLOW;
    ECanaRegs.CANMIM.all = 0xFFFFFFFF;
    EALLOW;
    ECanaShadow.CANMC.all = ECanaRegs.CANMC.all;
    ECanaShadow.CANMC.bit.STM = 0;    // Configure CAN for self-test mode
    ECanaRegs.CANMC.all = ECanaShadow.CANMC.all;
    EDIS;

// Begin transmitting
    for(;;)
    {

       ECanaRegs.CANTRS.all = 0x0000FFFF;  // Set TRS for all transmit mailboxes
       while(ECanaRegs.CANTA.all != 0x0000FFFF ) {}  // Wait for all TAn bits to be set..
       ECanaRegs.CANTA.all = 0x0000FFFF;   // Clear all TAn
       MessageReceivedCount++;

       //Read from Receive mailboxes and begin checking for data */
       for(j=0; j<16; j++)         // Read & check 16 mailboxes
       {
          mailbox_read(j);         // This func reads the indicated mailbox data
          mailbox_check(TestMbox1,TestMbox2,TestMbox3); // Checks the received data
       }
    }
   }
}


void mailbox_read(int16 MBXnbr)
{
   volatile struct MBOX *Mailbox;
   Mailbox = &ECanaMboxes.MBOX0 + MBXnbr;
   TestMbox1 = Mailbox->MDL.all; // = 0x9555AAAn (n is the MBX number)
   TestMbox2 = Mailbox->MDH.all; // = 0x89ABCDEF (a constant)
   TestMbox3 = Mailbox->MSGID.all;// = 0x9555AAAn (n is the MBX number)

}


void mailbox_check(int32 T1, int32 T2, int32 T3)
{
    if((T1 != T3) || ( T2 != 0x89ABCDEF))
    {
       ErrorCount++;
    }
    else
    {
       PassCount++;
    }
}


void IOinit(void)
{
    EALLOW;
                       //  将GPIO32～GPIO34配置为一般I/O端口输出，作138译码地址选择信号
 	GpioCtrlRegs.GPBMUX1.bit.GPIO32 = 0;  // GPIO34 = GPIO34
    GpioCtrlRegs.GPBDIR.bit.GPIO32 = 1;   // GPIO34 = output 
	GpioCtrlRegs.GPBMUX1.bit.GPIO33 = 0;  // GPIO34 = GPIO34
    GpioCtrlRegs.GPBDIR.bit.GPIO33 = 1;   // GPIO34 = output 
	GpioCtrlRegs.GPBMUX1.bit.GPIO34 = 0;  // GPIO34 = GPIO34
    GpioCtrlRegs.GPBDIR.bit.GPIO34 = 1;   // GPIO34 = output 
                      //  将GPIO12～GPIO19配置为一般I/O端口，D0～D7
	GpioCtrlRegs.GPAMUX1.all=0x00000000;
	GpioCtrlRegs.GPADIR.all=0xffffffff;
	GpioDataRegs.GPADAT.all=0x00000000;

	
	EDIS;   
}
int KeyIn(void)                                             //  查键子程序
{
    Uint32 key;
 	EALLOW;  
	GpioCtrlRegs.GPADIR.all=0xfff00fff;//  将GPIO12～GPIO19配置为输入，D0～D7

	  

    EDIS; 
       GpioDataRegs.GPBDAT.all=0x00000001;                      //  选通键盘KEYC
   
    for (i=0; i<100; i++){}                                  //  延时// 判S1是否按下
    key=GpioDataRegs.GPADAT.all|0xfff00fff;
    if (key==0xffffefff)

      {GpioDataRegs.GPADAT.all==GpioDataRegs.GPADAT.all|0xffffefff;
    	for (i=0; i<100;i++){}                              //  延时消抖动
       	key=GpioDataRegs.GPADAT.all|0xfff00fff;
        if (key==0xffffefff)
           {
    		while ((GpioDataRegs.GPADAT.all|0xfff00fff)==0xffffefff)   //  判S1是否送开
    		{
    			GpioDataRegs.GPADAT.bit.GPIO12 =!GpioDataRegs.GPADAT.bit.GPIO12;
    		for (i=0;i<1000;i++){}     
    		}
    	    return (1);		      
    	   }
      }
    return (0);
}
void LedOut(Uint32 led)
{
 	EALLOW;  
                                               // 将GPIOB8～GPIOB15配置为输出，D0～D7
   	GpioCtrlRegs.GPADIR.bit.GPIO12 = 1;   // GPIO34 = output  
        GpioCtrlRegs.GPADIR.bit.GPIO13 = 1;   // GPIO34 = output 
        GpioCtrlRegs.GPADIR.bit.GPIO14 = 1;   // GPIO34 = output 
        GpioCtrlRegs.GPADIR.bit.GPIO15 = 1;   // GPIO34 = output 
        GpioCtrlRegs.GPADIR.bit.GPIO16 = 1;   // GPIO34 = output 
        GpioCtrlRegs.GPADIR.bit.GPIO17 = 1;   // GPIO34 = output 
        GpioCtrlRegs.GPADIR.bit.GPIO18 = 1;   // GPIO34 = output 
        GpioCtrlRegs.GPADIR.bit.GPIO19 = 1;   // GPIO34 = output
	EDIS;	
        GpioDataRegs.GPBDAT.all = 0x00000006;  //12~19 
	GpioDataRegs.GPBDAT.all = 0x00000006;            // 
	led=led<<12;
	GpioDataRegs.GPADAT.all =-led;
	for (i=0;i<100;i++){}               //  延时
    GpioDataRegs.GPBDAT.all = 0x00000001;     //  锁存高8位
}

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