DSP2833x _IO 테스트 소스.

#include "DSP28x_Project.h"    

#include <math.h>

void Delay_loop(void);

long Delay_length = 2142856; //150MHz 의 SYSCLK, 0.2s 지연

void main(void)

{

DINT;

IER = 0x0000;

IFR = 0x0000;

InitSysCtrl();

// SYSCLKOUT (CLKIN) = (30000*10)/2 = 150000 : 150 MHz 

// InitPll(DSP28_PLLCR,DSP28_DIVSEL); 10 2에서 설정.

// peripheral clocks 설정.

EALLOW;

   //GPxMUXn : 핀 기능설정, adc는 따로지정되어 있음. 0: 출력

   GpioCtrlRegs.GPAMUX1.all = 0x00000000;     // GPIO functionality GPIO0-GPIO15 

   GpioCtrlRegs.GPAMUX2.all = 0x00000000;     // GPIO functionality GPIO16-GPIO31

   GpioCtrlRegs.GPBMUX1.all = 0x00000000;     // GPIO functionality GPIO32-GPIO39

   GpioCtrlRegs.GPBMUX2.all = 0x00000000;     // GPIO functionality GPIO48-GPIO63

   GpioCtrlRegs.GPCMUX1.all = 0x00000000;     // GPIO functionality GPIO64-GPIO79

   GpioCtrlRegs.GPCMUX2.all = 0x00000000;     // GPIO functionality GPIO80-GPIO95

//GPxDIR : 방향 설정

   GpioCtrlRegs.GPADIR.all = 0xffffffff;      // GPIO0-GPIO31

   GpioCtrlRegs.GPBDIR.all = 0xffffffff;      // GPIO32-GPIO63   

   GpioCtrlRegs.GPCDIR.all = 0xffffffff;      // GPI064-GPIO95

   // Each input can have different qualification

   // a) input synchronized to SYSCLKOUT

   // b) input qualified by a sampling window

   // c) input sent asynchronously (valid for peripheral inputs only)

   GpioCtrlRegs.GPAQSEL1.all = 0x0000;    // GPIO0-GPIO15 Synch to SYSCLKOUT 

   GpioCtrlRegs.GPAQSEL2.all = 0x0000;    // GPIO16-GPIO31 Synch to SYSCLKOUT

   GpioCtrlRegs.GPBQSEL1.all = 0x0000;    // GPIO32-GPIO39 Synch to SYSCLKOUT 

   GpioCtrlRegs.GPBQSEL2.all = 0x0000;    // GPIO48-GPIO63 Synch to SYSCLKOUT 

   // Pull-ups can be enabled or disabled. 

  // GpioCtrlRegs.GPAPUD.all = 0x0000;      // Pullup's enabled GPIO0-GPIO31

   //GpioCtrlRegs.GPBPUD.all = 0x0000;      // Pullup's enabled GPIO32-GPIO63

   //GpioCtrlRegs.GPCPUD.all = 0x0000;      // Pullup's enabled GPIO64-GPIO79

   GpioCtrlRegs.GPAPUD.all = 0xFFFF;    // Pullup's disabled GPIO0-GPIO31

   GpioCtrlRegs.GPBPUD.all = 0xFFFF;    // Pullup's disabled GPIO32-GPIO34

   GpioCtrlRegs.GPCPUD.all = 0xFFFF;     // Pullup's disabled GPIO64-GPIO79

   EDIS;

GpioDataRegs.GPACLEAR.all = 0xffffffff; //초기 상태를 클리어.(0)

GpioDataRegs.GPBCLEAR.all = 0xffffffff; //초기 상태를 클리어.(0)

GpioDataRegs.GPCCLEAR.all = 0xffffffff; //초기 상태를 클리어.(0)

//============================================================================================ 

// Enable global Interrupts and higher priority real-time debug events:

//--------------------------------------------------------------------------------------------

EINT;   // Enable Global interrupt INTM

ERTM;   // Enable Global realtime interrupt DBGM

//============================================================================================

for(;;)

{

Delay_loop();

GpioDataRegs.GPACLEAR.all = 0xffffffff;

GpioDataRegs.GPBCLEAR.all = 0xffffffff;

GpioDataRegs.GPCCLEAR.all = 0xffffffff;

Delay_loop();

GpioDataRegs.GPASET.all = 0xffffffff;

GpioDataRegs.GPBSET.all = 0xffffffff;

GpioDataRegs.GPCSET.all = 0xffffffff;

}

}

//============================================================================================

// Local Interrupt Service Routines & Functions

//--------------------------------------------------------------------------------------------

// 단순 딜레이 루프

//--------------------------------------------------------------------------------------------

void Delay_loop()

{

   long i;

   for(i=0 ; i<Delay_length ; i++){}

}

//============================================================================================