PIC18F25K80bootloader程序.X.zip

#include <xc.h> #include "ecan.h" //#include "memory.h" #include "pin_manager.h" #include"flash.h" /** Local Functions */ //extern unsigned char delay_boot,bootloader_flag; bit REflag=0; uint16_t wtime=0; unsigned char cansenddata[8]={0}; unsigned char temp_DLC; unsigned char temp_D[8]; unsigned char BOOTCANH=0,BOOTCANL; void ECAN_extend(void);//发送标准帧 unsigned long convertReg2ExtendedCANid(unsigned char tempRXBn_EIDH, unsigned char tempRXBn_EIDL, unsigned char tempRXBn_SIDH, unsigned char tempRXBn_SIDL); unsigned long convertReg2StandardCANid(unsigned char tempRXBn_SIDH, unsigned char tempRXBn_SIDL); void convertCANid2Reg(unsigned long tempPassedInID, unsigned char canIdType, unsigned char *passedInEIDH, unsigned char *passedInEIDL, unsigned char *passedInSIDH, unsigned char *passedInSIDL); // #define ENDFLGDELAYTIME 0xFFFFF // static unsigned char chdata[64]; // unsigned char cStartFlg=0; // unsigned long cEndFlg=ENDFLGDELAYTIME; // // unsigned long addrpoint=0x1500; //PROG_START //void ECAN_ISR_ECAN_RXBI(void) //{ // if(PIR5bits.RXB0IF ==1) // { // //temp_EIDH = RXB0EIDH; // // temp_EIDL = RXB0EIDL; // BOOTCANH = RXB0SIDH; // BOOTCANL = RXB0SIDL; // temp_DLC = RXB0DLC; // temp_D[0] = RXB0D0; // temp_D[1] = RXB0D1; // temp_D[2] = RXB0D2; // temp_D[3] = RXB0D3; // temp_D[4] = RXB0D4; // temp_D[5] = RXB0D5; // temp_D[6] = RXB0D6; // temp_D[7] = RXB0D7; // REflag=1; // RXB0CONbits.RXB0FUL=0; // } // PIR5bits.RXB0IF = 0; //} void ECAN_Initialize(void) { CANCON = 0x80; while (0x80 != (CANSTAT & 0xE0)); // wait until ECAN is in config mode /** Mode 0 */ ECANCON = 0x00; /** Mask and Filter definitions ........................................................ CAN ID Mask Filter Buffer ........................................................ 0x444 Acceptance Mask 0 Filter 0 RXB0 0x555 Acceptance Mask 0 Filter 0 RXB0 0x666 Acceptance Mask 0 Filter 1 RXB1 ........................................................ */ /** Initialize Receive Masks */ RXM0EIDH = 0x00; RXM0EIDL = 0x00; RXM0SIDH = 0xfc; RXM0SIDL = 0x00; RXM1EIDH = 0xFF; RXM1EIDL = 0xFF; RXM1SIDH = 0xFF; RXM1SIDL = 0xFF; /** Initialize Receive Filters */ RXFCON0 = 0x03; //Disable all RXFCON1 = 0x00; //Disable all RXF0EIDH = 0x00; RXF0EIDL = 0x00; RXF0SIDH = 0x9c; RXF0SIDL = 0x00; RXF1EIDH = 0x00; RXF1EIDL = 0x00; RXF1SIDH = 0x00; RXF1SIDL = 0x00; /*RXF2EIDH = 0x00; RXF2EIDL = 0x00; RXF2SIDH = 0x00; RXF2SIDL = 0x00; RXF3EIDH = 0x00; RXF3EIDL = 0x00; RXF3SIDH = 0x00; RXF3SIDL = 0x00; RXF4EIDH = 0x00; RXF4EIDL = 0x00; RXF4SIDH = 0x00; RXF4SIDL = 0x00; RXF5EIDH = 0x00; RXF5EIDL = 0x00; RXF5SIDH = 0x00; RXF5SIDL = 0x00;*/ /** Initialize CAN Timings */ /** Baud rate: 250kbps System frequency: 8000000 Hz Time quanta: 16 Sample point: 1-3-8-4 Sample point: 75.00% */ /* BRGCON1 = 0x00; BRGCON2 = 0xBa; BRGCON3 = 0x03;*/ /** Baud rate: 20kbps System frequency: 8000000 Hz Time quanta: 10 Sample point: 1-1-6-2 Sample point: 80.00% */ /* BRGCON1 = 0x13; BRGCON2 = 0xA8; BRGCON3 = 0x01;*/ /** Baud rate: 500kbps System frequency: 8000000 Hz Time quanta: 8 Sample point: 1-1-4-2 Sample point: 75.00% */ BRGCON1 = 0x00; BRGCON2 = 0x98; BRGCON3 = 0x01; CANCON = 0x00; while (0x00 != (CANSTAT & 0xE0)); // wait until ECAN is in Normal mode RXB0CON = 0x20; RXB1CON = 0x00; // PIE5|=0x01;//can接收0中断允许位 PIR5 = 0X00; } //void CANincident(void) //{ //// unsigned char i,candata2=0,candata3=0; //// unsigned int candata1=0,candata4=0; // static unsigned char i=0,j=0; //// static unsigned int k=0; // if(REflag==1) // { // if((BOOTCANH==0x9c)&&(BOOTCANL==0x00)) // { // if(bootloader_flag == 0) // { // if(temp_D[1]==0xAA) // { // Erase_Whole_Flash(); // unsigned char ch[]={'A','c','k','-','-','-',0xAA}; // CanSendBuffer(0x7df,ch,sizeof(ch)); // bootloader_flag = 1; // delay_boot = 200; // CanSendBuffer(0x7df,temp_D,8); // } // } // else // { // if(0==cStartFlg) // { //初次进入升级，做升级初始化的事情在这里： // //发送一个启动信息： // unsigned char ch[]={0x66,0x66,0x66,0x66,0x66,0x66,0x66,0x66}; // CanSendBuffer(0x7df,ch,sizeof(ch)); // // Todo: // // 这段代码只是在启动的时候执行一次初始化的动作，所以以后就用标志位将其关闭 // cStartFlg = 1; // } // cEndFlg = ENDFLGDELAYTIME; // CanSendBuffer(0x7df,temp_D,8); // { // i是一次CAN接收的buffer的计数器 // // j是一次flash写入的buffer的计数器 // // k是写入总块数的计数器 // // 如果最后不足64个byte，则补足FF之后写入，这个工作由外部程序完成，这样可以节约MCU。 // for(i=0;i<8;i++){chdata[j++]=temp_D[i];} // if(j>=63) // { // // 写入一块，记数+1，0x400~0x800这1K的空间作为Bootloader本身的空间，不必擦写。 //// if ((BOOT64BLOCK_START<=k)&&(k<BOOT64BLOCK_END)) //// { //// // ToDo: 指针运行在BootLoader区域 //// } //// else //// { // //指针运行在APP程序区域，擦写程序 // Flash_Writex(addrpoint,chdata,64); //// } //// // 块内指针运行归零 // j=0; // // 写入一块，记数+1，0x400~0x800这1K的空间作为Bootloader本身的空间，不必擦写。 //// k++; // addrpoint+=64; // } // } // // // } // // } // REflag=0; // } // else // { // if(1==cStartFlg) // { // // 当升级启动之后，结束标志则进行倒计时，做延时处理 // cEndFlg--; // if (0==cEndFlg) // { // 等到计时结束，说明没有信息读入，升级结束： // //发送一个结束信息： // unsigned char chs[]={0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77}; // CanSendBuffer(0x7df,chs,sizeof(chs)); // // Todo Bootloader Received finished: // if (j<63) // { // for(i=j;i<=63;i++){chdata[i]=0xFF;} // Flash_Writex(addrpoint,chdata,64); // } // } // } // } // //} void CanSendBuffer(uint16_t tx_id, uint8_t * ptr, uint8_t len) { TXB0CONbits.TXREQ = 0; TXB0DLC = len; TXB0SIDL = (tx_id<<5) & 0xe0; TXB0SIDH = (tx_id>>3) & 0xff; TXB0D0 = * ptr; TXB0D1 = * (ptr+1); TXB0D2 = * (ptr+2); TXB0D3 = * (ptr+3); TXB0D4 = * (ptr+4); TXB0D5 = * (ptr+5); TXB0D6 = * (ptr+6); TXB0D7 = * (ptr+7); TXB0CONbits.TXREQ = 1; //Set the buffer to transmit wti