#include "DSP28_Device.h"
void init_eva(void);
void main(void)
{
InitSysCtrl();
EALLOW;
GpioMuxRegs.GPAMUX.all = 0x00FF; // EVA PWM 1-6 pins
GpioMuxRegs.GPBMUX.all = 0x00FF; // EVB PWM 7-12 pins
EDIS;
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
init_eva();
for(;;);
}
void init_eva()
{
EvaRegs.T1PR = 0xFFFF; // Timer1 period
EvaRegs.T1CMPR = 0x3C00; // Timer1 compare
EvaRegs.T1CNT = 0x0000; // Timer1 counter
EvaRegs.T1CON.all = 0x1042;
EvaRegs.T2PR = 0x0FFF; // Timer2 period
EvaRegs.T2CMPR = 0x03C0; // Timer2 compare
EvaRegs.T2CNT = 0x0000; // Timer2 counter
EvaRegs.T2CON.all = 0x1042;
EvaRegs.GPTCONA.bit.TCOMPOE = 1;
EvaRegs.GPTCONA.bit.T1PIN = 1;
EvaRegs.GPTCONA.bit.T2PIN = 2;
EvaRegs.CMPR1 = 0x0C00;
EvaRegs.CMPR2 = 0x3C00;
EvaRegs.CMPR3 = 0xFC00;
EvaRegs.ACTR.all = 0x0666;
EvaRegs.DBTCONA.all = 0x0000; // Disable deadband
EvaRegs.COMCONA.all = 0xA600;
}
其实，代码是移植的别人的程序，基本上没做什么改变。不知为什么在引脚用示波器看，没看到矩形波，只是高电平
困扰了好几天了，郁闷~
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