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Uint16 i = 0; Uint16 k = 123; Uint16 dataB[8]; Uint16 dataA[3] = {1,2,3}; char* msg;
void main(void) { // 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 InitXintf16Gpio(); //zq
// 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;
// PIE 向量表指针指向中断服务程(ISR)完成其初始化. // 即使在程序里不需要使用中断功能，也要对 PIE 向量表进行初始化. // 这样做是为了避免PIE引起的错误. // The shell ISR routines are found in DSP2833x_DefaultIsr.c. // This function is found in DSP2833x_PieVect.c. InitPieVectTable();
InitScibGpio();
// 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.TINT0 = &ISRTimer0; PieVectTable.SCITXINTB = &Scib_Tx_Isr; PieVectTable.SCIRXINTB = &Scib_Rx_Isr; //PieVectTable.XINT13 = &cpu_timer1_isr; //PieVectTable.TINT2 = &cpu_timer2_isr; EDIS; // This is needed to disable write to EALLOW protected registers
// Step 4. Initialize the Device Peripheral. This function can be // found in DSP2833x_CpuTimers.c InitCpuTimers(); // For this example, only initialize the Cpu Timers
// Configure CPU-Timer 0, 1, and 2 to interrupt every second: // 150MHz CPU Freq, 1 second Period (in uSeconds)
// Enable CPU int1 which is connected to CPU-Timer 0, CPU int13 // which is connected to CPU-Timer 1, and CPU int 14, which is connected // to CPU-Timer 2: IER |= M_INT1; IER |= M_INT9; //IER |= M_INT13; //IER |= M_INT14; GpioDataRegs.GPBSET.bit.GPIO60=1; // Enable TINT0 in the PIE: Group 1 interrupt 7 PieCtrlRegs.PIECTRL.bit.ENPIE = 1; PieCtrlRegs.PIEIER1.bit.INTx7 = 1;
