Other Parts Discussed in Thread: CONTROLSUITE
Hi,
I am studing how the different modules of TMS320 F28027 is working. I am using Piccolo launchpad. When I am using the xint1 for sensing the pressing of the switch in the GPIO12, the program is not going to the interrupt subroutin. I have given below the codes that I am using. Please support me.
//#############################################################################
// $TI Release: f2802x Support Library v200 $
// $Release Date: Tue Jul 24 10:01:39 CDT 2012 $
//#############################################################################
#include "DSP28x_Project.h" // Device Headerfile and Examples Include File
#include "f2802x_common/include/clk.h"
#include "f2802x_common/include/flash.h"
#include "f2802x_common/include/gpio.h"
#include "f2802x_common/include/pie.h"
#include "f2802x_common/include/pll.h"
#include "f2802x_common/include/pwr.h"
#include "f2802x_common/include/wdog.h"
// Prototype statements for functions found within this file.
interrupt void xint1_isr(void);
void LED1();
void LED2();
void InitGPIO();
void Initint();
CLK_Handle myClk;
FLASH_Handle myFlash;
GPIO_Handle myGpio;
PIE_Handle myPie;
// Global variables for this example
volatile uint32_t Xint1Count;
uint32_t LoopCount;
#define DELAY (CPU_RATE/1000*6*510) //Qual period at 6 samples
void main(void)
{
CPU_Handle myCpu;
PLL_Handle myPll;
WDOG_Handle myWDog;
int i;
// 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));
myWDog = WDOG_init((void *)WDOG_BASE_ADDR, sizeof(WDOG_Obj));
// Perform basic system initialization
WDOG_disable(myWDog);
CLK_enableAdcClock(myClk);
(*Device_cal)();
//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
InitGPIO();
Initint();
// Setup a debug vector table and enable the PIE
PIE_setDebugIntVectorTable(myPie);
PIE_enable(myPie);
CPU_enableInt(myCpu, CPU_IntNumber_1);
CPU_enableGlobalInts(myCpu);
LED1();
for(;;) {
asm(" NOP");
for(i=1;i<=10;i++) {
}
}
}
interrupt void xint1_isr(void)
{
LED2();
// Acknowledge this interrupt to get more from group 1
PIE_clearInt(myPie, PIE_GroupNumber_1);
}
void Initint()
{
// Register interrupt handlers in the PIE vector table
PIE_registerPieIntHandler(myPie, PIE_GroupNumber_1, PIE_SubGroupNumber_4, (intVec_t)&xint1_isr);
// Clear the counters
Xint1Count = 0; // Count XINT1 interrupts
LoopCount = 0; // Count times through idle loop
// Enable XINT1 and XINT2 in the PIE: Group 1 interrupt 4 & 5
// Enable INT1 which is connected to WAKEINT
PIE_enableInt(myPie, PIE_GroupNumber_1, PIE_InterruptSource_XINT_1);
// Enable Global Interrupts
// GPIO0 and GPIO1 are inputs
GPIO_setMode(myGpio, GPIO_Number_12, GPIO_12_Mode_GeneralPurpose);
GPIO_setDirection(myGpio, GPIO_Number_12, GPIO_Direction_Input);
GPIO_setQualification(myGpio, GPIO_Number_12, GPIO_Qual_ASync);
// GPIO0 is XINT1, GPIO1 is XINT2
GPIO_setExtInt(myGpio, GPIO_Number_12, CPU_ExtIntNumber_1);
// Configure XINT1
PIE_setExtIntPolarity(myPie, CPU_ExtIntNumber_1, PIE_ExtIntPolarity_RisingAndFallingEdge);
// Enable XINT1 and XINT2
PIE_enableExtInt(myPie, CPU_ExtIntNumber_1);
}
void InitGPIO()
{
// Configure GPIO 0,1,2,3as outputs
GPIO_setMode(myGpio, GPIO_Number_0, GPIO_0_Mode_GeneralPurpose);
GPIO_setMode(myGpio, GPIO_Number_1, GPIO_1_Mode_GeneralPurpose);
GPIO_setMode(myGpio, GPIO_Number_2, GPIO_2_Mode_GeneralPurpose);
GPIO_setMode(myGpio, GPIO_Number_3, GPIO_3_Mode_GeneralPurpose);
GPIO_setDirection(myGpio, GPIO_Number_0, GPIO_Direction_Output);
GPIO_setDirection(myGpio, GPIO_Number_1, GPIO_Direction_Output);
GPIO_setDirection(myGpio, GPIO_Number_2, GPIO_Direction_Output);
GPIO_setDirection(myGpio, GPIO_Number_3, GPIO_Direction_Output);
GPIO_setLow(myGpio, GPIO_Number_0);
GPIO_setLow(myGpio, GPIO_Number_1);
GPIO_setLow(myGpio, GPIO_Number_2);
GPIO_setLow(myGpio, GPIO_Number_3);
}
void LED1()
{
DELAY_US(1000000);
GPIO_setHigh(myGpio, GPIO_Number_0);
GPIO_setHigh(myGpio, GPIO_Number_1);
GPIO_setHigh(myGpio, GPIO_Number_2);
GPIO_setHigh(myGpio, GPIO_Number_3);
}
void LED2()
{
DELAY_US(100000000);
GPIO_setLow(myGpio, GPIO_Number_0);
GPIO_setLow(myGpio, GPIO_Number_1);
GPIO_setLow(myGpio, GPIO_Number_2);
GPIO_setLow(myGpio, GPIO_Number_3);
DELAY_US(100000000);
GPIO_setHigh(myGpio, GPIO_Number_0);
GPIO_setHigh(myGpio, GPIO_Number_1);
GPIO_setHigh(myGpio, GPIO_Number_2);
GPIO_setHigh(myGpio, GPIO_Number_3);
}
//===========================================================================
// No more.
//===========================================================================
