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Tiva C series tm4c123gxl debugging problem

Ypr over 5 years ago

I bought a new tm4c123gxl board. My first evaluation board so I don't know much. When I try to install an application to the card, it does not give any error, but I cannot observe the application on the card (just power led is on). Could I have made a few mistakes and killed my card? This is the screen when I press the stop button on the debug screen. This isnt my code. this is a pre-made code.

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// This is your second program to run on the LaunchPad
// You will debug this program as your Lab 4
// If both switches SW1 and SW2 are pressed, the LED should be blue
// If just SW1 switch is pressed,            the LED should be red
// If just SW2 switch is pressed,            the LED should be green
// If neither SW1 or SW2 is pressed,         the LED should be off
// 0.Documentation Section 
// main.c
// Runs on LM4F120 or TM4C123
// Lab4_IO, Inputs from PF4,PF0, output to PF3,PF2,PF1 (LED)
// Authors: Daniel Valvano, Jonathan Valvano and Ramesh Yerraballi
// Date: January 15, 2016
// LaunchPad built-in hardware
// SW1 left switch is negative logic PF4 on the Launchpad
// SW2 right switch is negative logic PF0 on the Launchpad
// red LED connected to PF1 on the Launchpad
// blue LED connected to PF2 on the Launchpad
// green LED connected to PF3 on the Launchpad
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

// This is your second program to run on the LaunchPad
// You will debug this program as your Lab 4
// If both switches SW1 and SW2 are pressed, the LED should be blue
// If just SW1 switch is pressed,            the LED should be red
// If just SW2 switch is pressed,            the LED should be green
// If neither SW1 or SW2 is pressed,         the LED should be off

// 0.Documentation Section 
// main.c
// Runs on LM4F120 or TM4C123
// Lab4_IO, Inputs from PF4,PF0, output to PF3,PF2,PF1 (LED)
// Authors: Daniel Valvano, Jonathan Valvano and Ramesh Yerraballi
// Date: January 15, 2016

// LaunchPad built-in hardware
// SW1 left switch is negative logic PF4 on the Launchpad
// SW2 right switch is negative logic PF0 on the Launchpad
// red LED connected to PF1 on the Launchpad
// blue LED connected to PF2 on the Launchpad
// green LED connected to PF3 on the Launchpad

// 1. Pre-processor Directives Section
// Constant declarations to access port registers using 
// symbolic names instead of addresses
// TExaS.o is the object code for the real-board grader
#include "TExaS.h"
#define GPIO_PORTF_DATA_R       (*((volatile unsigned long *)0x400253FC))
#define GPIO_PORTF_DIR_R        (*((volatile unsigned long *)0x40025400))
#define GPIO_PORTF_AFSEL_R      (*((volatile unsigned long *)0x40025420))
#define GPIO_PORTF_PUR_R        (*((volatile unsigned long *)0x40025510))
#define GPIO_PORTF_DEN_R        (*((volatile unsigned long *)0x4002551C))
#define GPIO_PORTF_LOCK_R       (*((volatile unsigned long *)0x40025520))
#define GPIO_PORTF_CR_R         (*((volatile unsigned long *)0x40025524))
#define GPIO_PORTF_AMSEL_R      (*((volatile unsigned long *)0x40025528))
#define GPIO_PORTF_PCTL_R       (*((volatile unsigned long *)0x4002552C))
#define SYSCTL_RCGC2_R          (*((volatile unsigned long *)0x400FE108))

// 2. Declarations Section
//   Global Variables
unsigned long SW1,SW2;  // input from PF4,PF0
unsigned long Out;      // outputs to PF3,PF2,PF1 (multicolor LED)

//   Function Prototypes
void PortF_Init(void);
void Delay(void);
void EnableInterrupts(void);


// 3. Subroutines Section
// MAIN: Mandatory for a C Program to be executable
int main(void){    
  TExaS_Init(SW_PIN_PF40,LED_PIN_PF321); 
  // TExaS_Init initializes the real board grader for lab 4
  PortF_Init();        // Call initialization of port PF4, PF3, PF2, PF1, PF0    
  EnableInterrupts();  // The grader uses interrupts
  while(1){
    SW1 = GPIO_PORTF_DATA_R&0x10;     // read PF4 into SW1
    SW2 = GPIO_PORTF_DATA_R&0x01;     // read PF0 into SW2
    if(SW1&&SW2){                     // both pressed
      GPIO_PORTF_DATA_R = 0x04;       // LED is blue
    } else{                           
      if(SW1&&(!SW2)){                // just SW1 pressed
        GPIO_PORTF_DATA_R = 0x02;     // LED is red
      } else{                        
        if((!SW1)&&SW2){              // just SW2 pressed
          GPIO_PORTF_DATA_R = 0x08;   // LED is green
        }else{                        // neither switch
          GPIO_PORTF_DATA_R = 0x00;   // LED is off
        }
      }
    }
  }
}
// Subroutine to initialize port F pins for input and output
// PF4 and PF0 are input SW1 and SW2 respectively
// PF3,PF2,PF1 are outputs to the LED
// Inputs: None
// Outputs: None
// Notes: These five pins are connected to hardware on the LaunchPad
void PortF_Init(void){ volatile unsigned long delay;
  SYSCTL_RCGC2_R |= 0x00000020;     // 1) F clock
  delay = SYSCTL_RCGC2_R;           // delay   
  GPIO_PORTF_LOCK_R = 0x4C4F434B;   // 2) unlock PortF PF0  
  GPIO_PORTF_CR_R = 0x1F;           // allow changes to PF4-0       
  GPIO_PORTF_AMSEL_R = 0x00;        // 3) disable analog function
  GPIO_PORTF_PCTL_R = 0x00000000;   // 4) GPIO clear bit PCTL  
  GPIO_PORTF_DIR_R = 0x0E;          // 5) PF4,PF0 input, PF3,PF2,PF1 output   
  GPIO_PORTF_AFSEL_R = 0x00;        // 6) no alternate function
  GPIO_PORTF_PUR_R = 0x11;          // enable pullup resistors on PF4,PF0       
  GPIO_PORTF_DEN_R = 0x1F;          // 7) enable digital pins PF4-PF0        
}
// Color    LED(s) PortF
// dark     ---    0
// red      R--    0x02
// blue     --B    0x04
// green    -G-    0x08
// yellow   RG-    0x0A
// sky blue -GB    0x0C
// white    RGB    0x0E
// pink     R-B    0x06