void main(void) { // Step 1. Initialize System Control: // PLL, WatchDog, enable Peripheral Clocks // This example function is found in the DSP2803x_SysCtrl.c file. InitSysCtrl(); // Step 2. Initialize GPIO: // This example function is found in the DSP2803x_Gpio.c file and // illustrates how to set the GPIO to it's default state. // InitGpio(); // Skipped for this example InitEPwm3Gpio(); InitECap1Gpio(); // Step 3. Clear all interrupts and initialize PIE vector table: // Disable CPU interrupts DINT; // Initialize the 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 DSP2803x_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 DSP2803x_DefaultIsr.c. // This function is found in DSP2803x_PieVect.c. InitPieVectTable(); // Interrupts that are used in this example are re-mapped to // ISR functions found within this file. EALLOW; // This is needed to write to EALLOW protected registers PieVectTable.ECAP1_INT = &ecap1_isr; EDIS; // This is needed to disable write to EALLOW protected registers // Step 4. Initialize all the Device Peripherals: InitEPwmTimer(); // For this example, only initialize the ePWM Timers InitECapture(); // Step 5. User specific code, enable interrupts: // Initialize counters: ECap1IntCount = 0; ECap1PassCount = 0; // Enable CPU INT4 which is connected to ECAP1-4 INT: IER |= M_INT4; // Enable eCAP INTn in the PIE: Group 3 interrupt 1-6 PieCtrlRegs.PIEIER4.bit.INTx1 = 1; // Enable global Interrupts and higher priority real-time debug events: EINT; // Enable Global interrupt INTM ERTM; // Enable Global realtime interrupt DBGM // Step 6. IDLE loop. Just sit and loop forever (optional): for(;;) { __asm(" NOP"); } }
void main(void) { int i; // 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 // Step 3. Clear all interrupts and initialize PIE vector table: // Disable CPU interrupts DINT; // Initialize the 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(); // Interrupts that are used in this example are re-mapped to // ISR functions found within this file. EALLOW; // This is needed to write to EALLOW protected registers PieVectTable.EPWM1_INT = &epwm1_timer_isr; PieVectTable.EPWM2_INT = &epwm2_timer_isr; PieVectTable.EPWM3_INT = &epwm3_timer_isr; PieVectTable.EPWM4_INT = &epwm4_timer_isr; PieVectTable.EPWM5_INT = &epwm5_timer_isr; PieVectTable.EPWM6_INT = &epwm6_timer_isr; EDIS; // This is needed to disable write to EALLOW protected registers // Step 4. Initialize all the Device Peripherals: // This function is found in DSP2833x_InitPeripherals.c // InitPeripherals(); // Not required for this example InitEPwmTimer(); // For this example, only initialize the ePWM Timers // Step 5. User specific code, enable interrupts: // Initalize counters: EPwm1TimerIntCount = 0; EPwm2TimerIntCount = 0; EPwm3TimerIntCount = 0; EPwm4TimerIntCount = 0; EPwm5TimerIntCount = 0; EPwm6TimerIntCount = 0; // Enable CPU INT3 which is connected to EPWM1-6 INT: IER |= M_INT3; // Enable EPWM INTn in the PIE: Group 3 interrupt 1-6 PieCtrlRegs.PIEIER3.bit.INTx1 = PWM1_INT_ENABLE; PieCtrlRegs.PIEIER3.bit.INTx2 = PWM2_INT_ENABLE; PieCtrlRegs.PIEIER3.bit.INTx3 = PWM3_INT_ENABLE; PieCtrlRegs.PIEIER3.bit.INTx4 = PWM4_INT_ENABLE; PieCtrlRegs.PIEIER3.bit.INTx5 = PWM5_INT_ENABLE; PieCtrlRegs.PIEIER3.bit.INTx6 = PWM6_INT_ENABLE; // Enable global Interrupts and higher priority real-time debug events: EINT; // Enable Global interrupt INTM ERTM; // Enable Global realtime interrupt DBGM // Step 6. IDLE loop. Just sit and loop forever (optional): for(;;) { asm(" NOP"); for(i=1;i<=10;i++) {} } }
void main(void) { int i; CPU_Handle myCpu; PLL_Handle myPll; WDOG_Handle myWDog; // Initialize all the handles needed for this application myClk = CLK_init((void *)CLK_BASE_ADDR, sizeof(CLK_Obj)); myCpu = CPU_init((void *)NULL, sizeof(CPU_Obj)); myFlash = FLASH_init((void *)FLASH_BASE_ADDR, sizeof(FLASH_Obj)); myGpio = GPIO_init((void *)GPIO_BASE_ADDR, sizeof(GPIO_Obj)); myPie = PIE_init((void *)PIE_BASE_ADDR, sizeof(PIE_Obj)); myPll = PLL_init((void *)PLL_BASE_ADDR, sizeof(PLL_Obj)); myPwm1 = PWM_init((void *)PWM_ePWM1_BASE_ADDR, sizeof(PWM_Obj)); myPwm2 = PWM_init((void *)PWM_ePWM2_BASE_ADDR, sizeof(PWM_Obj)); myPwm3 = PWM_init((void *)PWM_ePWM3_BASE_ADDR, sizeof(PWM_Obj)); myWDog = WDOG_init((void *)WDOG_BASE_ADDR, sizeof(WDOG_Obj)); // Perform basic system initialization WDOG_disable(myWDog); CLK_enableAdcClock(myClk); (*Device_cal)(); CLK_disableAdcClock(myClk); //Select the internal oscillator 1 as the clock source CLK_setOscSrc(myClk, CLK_OscSrc_Internal); // Setup the PLL for x10 /2 which will yield 50Mhz = 10Mhz * 10 / 2 PLL_setup(myPll, PLL_Multiplier_10, PLL_DivideSelect_ClkIn_by_2); // Disable the PIE and all interrupts PIE_disable(myPie); PIE_disableAllInts(myPie); CPU_disableGlobalInts(myCpu); CPU_clearIntFlags(myCpu); // If running from flash copy RAM only functions to RAM #ifdef _FLASH memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize); #endif // Setup a debug vector table and enable the PIE PIE_setDebugIntVectorTable(myPie); PIE_enable(myPie); // Register interrupt handlers in the PIE vector table PIE_registerPieIntHandler(myPie, PIE_GroupNumber_3, PIE_SubGroupNumber_1, (intVec_t)&epwm1_timer_isr); PIE_registerPieIntHandler(myPie, PIE_GroupNumber_3, PIE_SubGroupNumber_2, (intVec_t)&epwm2_timer_isr); PIE_registerPieIntHandler(myPie, PIE_GroupNumber_3, PIE_SubGroupNumber_3, (intVec_t)&epwm3_timer_isr); InitEPwmTimer(); // For this example, only initialize the ePWM Timers // Initialize counters: EPwm1TimerIntCount = 0; EPwm2TimerIntCount = 0; EPwm3TimerIntCount = 0; // Enable CPU INT3 which is connected to EPWM1-6 INT CPU_enableInt(myCpu, CPU_IntNumber_3); // Enable EPWM INTn in the PIE: Group 3 interrupt 1-6 PIE_enablePwmInt(myPie, PWM_Number_1); PIE_enablePwmInt(myPie, PWM_Number_2); PIE_enablePwmInt(myPie, PWM_Number_3); // Enable global Interrupts and higher priority real-time debug events CPU_enableGlobalInts(myCpu); CPU_enableDebugInt(myCpu); for(;;) { __asm(" NOP"); for(i=1;i<=10;i++) { } } }
void main(void) { CPU_Handle myCpu; PLL_Handle myPll; WDOG_Handle myWDog; // Initialize all the handles needed for this application myClk = CLK_init((void *)CLK_BASE_ADDR, sizeof(CLK_Obj)); myCpu = CPU_init((void *)NULL, sizeof(CPU_Obj)); myFlash = FLASH_init((void *)FLASH_BASE_ADDR, sizeof(FLASH_Obj)); myGpio = GPIO_init((void *)GPIO_BASE_ADDR, sizeof(GPIO_Obj)); myPie = PIE_init((void *)PIE_BASE_ADDR, sizeof(PIE_Obj)); myPll = PLL_init((void *)PLL_BASE_ADDR, sizeof(PLL_Obj)); myPwm1 = PWM_init((void *)PWM_ePWM1_BASE_ADDR, sizeof(PWM_Obj)); myPwm2 = PWM_init((void *)PWM_ePWM2_BASE_ADDR, sizeof(PWM_Obj)); myPwm3 = PWM_init((void *)PWM_ePWM3_BASE_ADDR, sizeof(PWM_Obj)); myWDog = WDOG_init((void *)WDOG_BASE_ADDR, sizeof(WDOG_Obj)); // Perform basic system initialization WDOG_disable(myWDog); CLK_enableAdcClock(myClk); (*Device_cal)(); CLK_disableAdcClock(myClk); //Select the internal oscillator 1 as the clock source CLK_setOscSrc(myClk, CLK_OscSrc_Internal); // Setup the PLL for x10 /2 which will yield 50Mhz = 10Mhz * 10 / 2 PLL_setup(myPll, PLL_Multiplier_10, PLL_DivideSelect_ClkIn_by_2); // Disable the PIE and all interrupts PIE_disable(myPie); PIE_disableAllInts(myPie); CPU_disableGlobalInts(myCpu); CPU_clearIntFlags(myCpu); // Setup a debug vector table and enable the PIE PIE_setDebugIntVectorTable(myPie); PIE_enable(myPie); // Register interrupt handlers in the PIE vector table PIE_registerPieIntHandler(myPie, PIE_GroupNumber_3, PIE_SubGroupNumber_1, (intVec_t)&EPwm1_timer_isr); PIE_registerPieIntHandler(myPie, PIE_GroupNumber_3, PIE_SubGroupNumber_2, (intVec_t)&EPwm2_timer_isr); PIE_registerPieIntHandler(myPie, PIE_GroupNumber_3, PIE_SubGroupNumber_3, (intVec_t)&EPwm3_timer_isr); // Initialize the EPwm Timers used in this example InitEPwmTimer(); #ifdef _FLASH // Copy time critical code and Flash setup code to RAM // This includes the following ISR functions: EPwm1_timer_isr(), EPwm2_timer_isr() // and FLASH_setup(); // The RamfuncsLoadStart, RamfuncsLoadSize, and RamfuncsRunStart // symbols are created by the linker. Refer to the F2280270.cmd file. memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize); // Call Flash Initialization to setup flash waitstates // This function must reside in RAM FLASH_setup(myFlash); #endif // end #ifdef _FLASH // Initalize counters: EPwm1TimerIntCount = 0; EPwm2TimerIntCount = 0; EPwm3TimerIntCount = 0; LoopCount = 0; // Enable CPU INT3 which is connected to EPwm1-3 INT: CPU_enableInt(myCpu, CPU_IntNumber_3); // Enable EPwm INTn in the PIE: Group 3 interrupt 1-3. PIE_enablePwmInt(myPie, PWM_Number_1); PIE_enablePwmInt(myPie, PWM_Number_2); PIE_enablePwmInt(myPie, PWM_Number_3); // Enable global Interrupts and higher priority real-time debug events CPU_enableGlobalInts(myCpu); CPU_enableDebugInt(myCpu); // Configure GPIO so it can toggle in the idle loop GPIO_setMode(myGpio, GPIO_Number_34, GPIO_34_Mode_GeneralPurpose); GPIO_setDirection(myGpio, GPIO_Number_34, GPIO_Direction_Output); for(;;) { // This loop will be interrupted, so the overall // delay between pin toggles will be longer. DELAY_US(DELAY); LoopCount++; // Toggle GPIO GPIO_toggle(myGpio, GPIO_Number_34); } }
void main(void) { // Step 1. Initialize System Control: // PLL, WatchDog, enable Peripheral Clocks // This example function is found in the DSP2803x_SysCtrl.c file. InitSysCtrl(); // Step 2. Initialize GPIO: // This example function is found in the DSP2803x_Gpio.c file and // illustrates how to set the GPIO to it's default state. // InitGpio(); // Skipped for this example // Step 3. Clear all interrupts and initialize PIE vector table: // Disable CPU interrupts DINT; // Initialize the 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 DSP2803x_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 DSP2803x_DefaultIsr.c. // This function is found in DSP2803x_PieVect.c. InitPieVectTable(); // Interrupts that are used in this example are re-mapped to // ISR functions found within this file. EALLOW; // This is needed to write to EALLOW protected registers PieVectTable.EPWM1_INT = &epwm1_timer_isr; PieVectTable.EPWM2_INT = &epwm2_timer_isr; PieVectTable.EPWM3_INT = &epwm3_timer_isr; EDIS; // This is needed to disable write to EALLOW protected registers // Step 4. Initialize all the Device Peripherals: InitEPwmTimer(); // For this example, only initialize the ePWM Timers // Step 5. User specific code, enable interrupts: // Copy time critical code and Flash setup code to RAM // This includes the following ISR functions: epwm1_timer_isr(), epwm2_timer_isr() // epwm3_timer_isr and and InitFlash(); // The RamfuncsLoadStart, RamfuncsLoadEnd, and RamfuncsRunStart // symbols are created by the linker. memcpy((uint16_t *)&RamfuncsRunStart,(uint16_t *)&RamfuncsLoadStart, (unsigned long)&RamfuncsLoadSize); // Call Flash Initialization to setup flash waitstates // This function must reside in RAM InitFlash(); // Initialize counters: EPwm1TimerIntCount = 0; EPwm2TimerIntCount = 0; EPwm3TimerIntCount = 0; LoopCount = 0; // Enable CPU INT3 which is connected to EPWM1-3 INT: IER |= M_INT3; // Enable EPWM INTn in the PIE: Group 3 interrupt 1-3 PieCtrlRegs.PIEIER3.bit.INTx1 = PWM1_INT_ENABLE; PieCtrlRegs.PIEIER3.bit.INTx2 = PWM2_INT_ENABLE; PieCtrlRegs.PIEIER3.bit.INTx3 = PWM3_INT_ENABLE; // Enable global Interrupts and higher priority real-time debug events: EINT; // Enable Global interrupt INTM ERTM; // Enable Global realtime interrupt DBGM // Step 6. IDLE loop. Just sit and loop forever (optional): EALLOW; GpioCtrlRegs.GPBMUX1.bit.GPIO34 = 0; GpioCtrlRegs.GPBDIR.bit.GPIO34 = 1; EDIS; for(;;) { // This loop will be interrupted, so the overall // delay between pin toggles will be longer. DELAY_US(DELAY); LoopCount++; GpioDataRegs.GPBTOGGLE.bit.GPIO34 = 1; } }