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Example Usage Flow

EALLOW; // This is needed to write to EALLOW protected registers

PieVectTable.TINT0 = &cpu_timer0_isr;

EDIS; // This is needed to disable write to EALLOW protected registers

// Include application specific functions. This is for this example:

// Configure CPU-Timer 0 to interrupt every second:

ConfigCpuTimer(&CpuTimer0, 100, 1000000); // 100MHz CPU Freq, 1 second

// Period (in uSeconds)

StartCpuTimer0();

// Enable CPU INT1 which is connected to CPU-Timer 0:

IER |= M_INT1;

// Enable TINT0 in the PIE: Group 1 interrupt 7

PieCtrlRegs.PIEIER1.bit.INTx7 = 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(;;);

}

// Step 7. Insert all local Interrupt Service Routines (ISRs) and functions

here:

// If local ISRs are used, reassign vector addresses in vector table as

// shown in Step 5

interrupt void cpu_timer0_isr(void)

{

CpuTimer0.InterruptCount++;

// Acknowledge this interrupt to recieve more interrupts from group 1

PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;

}

3 - 14 C28x - Peripheral Registers Header Files

Texas Instruments C28 Series Student Guide

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