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            EEPW首頁 > 嵌入式系統(tǒng) > 設(shè)計(jì)應(yīng)用 > MM908E624單片機(jī)在汽車電子油門控制系統(tǒng)的應(yīng)用

            MM908E624單片機(jī)在汽車電子油門控制系統(tǒng)的應(yīng)用

            作者: 時(shí)間:2013-01-22 來源:網(wǎng)絡(luò) 收藏

            // --------------------------------------------------------
            // --------------------------------------------------------
            // --------------------------------------------------------
            void Reset(void) {
            asm JMP $2000; // forces a reset
            Illegal Address Reset
            }
            // --------------------------------------------------------
            void EnterLowPowerMode(void) { // Initialize
            Sleep/Stop Mode
            (void)l_ifc_disconnect_sci08(); // disconnect
            SCI (port E)
            sei();
            TimerDisable();
            TimerBDisable();
            ADC_PowerOff();
            // ---------------------
            // all unused pins to output
            // all outputs to output
            // all inputs to input
            //
            // EY16 / KOBI interface
            //
            // PTA5/SPSCK (EY16 -> KOBI) PULL DOWN
            // PTA6/SSB (EY16 -> KOBI) PULL UP
            // PTB1/OUT (EY16 - KOBI)
            // PTC0/MISO (EY16 - KOBI)
            // PTC1/MOSI (EY16 -> KOBI) PULL DOWN
            // PTD0/PWMIN (EY16 -> KOBI) PULL ?
            // PTE0/TXD (EY16 -> KOBI) PULL UP
            // PTE1/RXD (EY16 - KOBI)
            rDDRA = bDDRA6|bDDRA5|bDDRA4|bDDRA3|bDDRA2|bDDRA1|bDDRA0; // all
            out
            rDDRB = bDDRB7|bDDRB6|bDDRB5|bDDRB4|bDDRB3|bDDRB2|!bDDRB1|bDDRB0; // B1 in
            rDDRC = bMCLKEN|bDDRC4|bDDRC3|bDDRC2|bDDRC1|!bDDRC0; // C0 in
            rDDRD = bDDRD1|bDDRD0; // all out
            rDDRE = !bDDRE1|bDDRE0; // E1 in
            rPORTA = !bPTA5|bPTA6; // A5 down, A6 up
            rPORTB = 0;
            rPORTC = !bPTC1; // C1 down
            rPORTD = !bPTD0; // D0 down
            rPORTE = bPTE0; // E0 up
            /*
            (void)SPI_ReadWrite(bwLINSL2|bwLINSL1|bwMODE1);// Stop Command (MCU supplied)
            (void)SPI_ReadWrite(bwLINSL2|bwLINSL1|bwMODE1);// needs to be send twice*/
            (void)SPI_ReadWrite(bwLINSL2|bwLINSL1); // Sleep Command (MCU off)
            (void)SPI_ReadWrite(bwLINSL2|bwLINSL1); // needs to be send twice
            SPI_Disable(); // Disable SPI
            // Sleep=1; // Sleep
            stop(); // enter ULPM
            }
            // --------------------------------------------------------
            // Interrupt Service Routines
            // --------------------------------------------------------
            #pragma TRAP_PROC
            void isrESCIReceive(void) { // SCI Rx
            interrupt handler
            l_ifc_rx_sci08();
            }
            // --------------------------------------------------------
            #pragma TRAP_PROC
            void isrESCIError(void) { // SCI Error
            interrupt handler
            l_ifc_rx_sci08();
            }
            // -------------------------------------------------------
            l_irqmask l_sys_irq_disable(void){ //Disable
            interrupts
            sei();
            return 0;
            }
            // -------------------------------------------------------
            void l_sys_irq_restore(l_irqmask previous){ //Restore
            interrupts
            cli();
            }
            // -------------------------------------------------------
            #pragma TRAP_PROC
            void ISR_DUMMY(void){ //Dummy ISR
            // while(1);
            }
            // -------------------------------------------------------
            #pragma TRAP_PROC
            void isrKeyBoard(void) {
            swi();
            }
            // -------------------------------------------------------
            // -------------------------------------------------------
            #pragma TRAP_PROC
            void isrHWIRQ(void) {
            UINT8 res;
            //swi();
            nop();
            SPIout = bwMODE2|bwMODE1;
            res = SPI_ReadWrite(SPIout);
            /*
            if(resbrINTSRC) {
            }
            */
            TimerEnable();
            TimerBEnable();
            }

            4.功能展示

            5.參考文獻(xiàn):

            I.〈〈傳感器與接口技術(shù)〉〉中國石化化出版社 蘇鐵力 關(guān)振海 孫繼紅 編著
            II. 清華大學(xué)出版社 謝瑞和 楊明編著
            III.908E624 DATA SHEET>> MOTOROLA REV1.0,09/2003
            IV. > REV 5.0, 09/2003(end)

            陀螺儀相關(guān)文章:陀螺儀原理



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