[Fault ISR] Tiva Controller

Hi,

   Attach your CCS project files here, for review.

- kel

Hi Markel,

               Thank you for the reply.Its a company project i'm unable to attach the project. i'm giving the information of problem where i'm facing.

              In common.c file i'm enabling the ports.

#include "common_header_h.h"

void BoardConfig(void)
{
//	//Enable Clock ,Use PLL

	SysCtlClockSet(SYSCTL_SYSDIV_2_5 | SYSCTL_USE_OSC | SYSCTL_USE_PLL  | SYSCTL_OSC_MAIN |SYSCTL_XTAL_8MHZ);

	// Enable PORTA,PORTB,PORTC,PORTD,PORTE,PORTF,PORTG,PORTH & PORTK
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOH);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOJ);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOK);

	
	GPIOPinTypeGPIOOutput(GPIO_PORTA_BASE,GPIO_PIN_0  | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4);

	GPIOPinTypeGPIOInput(GPIO_PORTA_BASE,GPIO_PIN_1| GPIO_PIN_6);

	GPIOPinTypeGPIOOutput(GPIO_PORTB_BASE, GPIO_PIN_2 | GPIO_PIN_4 | GPIO_PIN_5 );

	GPIOPinTypeGPIOOutput(GPIO_PORTC_BASE,GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 );
	GPIOPinTypeGPIOInput(GPIO_PORTC_BASE,GPIO_PIN_7);
}

In  common_header_h.h file i have included as follows

#include <assert.h>
#include "inc/tm4c123gh6pz.h"
#include "stdbool.h"
#include "stdint.h"

#include "inc/hw_types.h"
#include "driverlib/timer.h"
#include "inc/hw_memmap.h"
#include "driverlib/pin_map.h"
#include "driverlib/rom.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/interrupt.h"
#include "driverlib/sysctl.h"
#include "driverlib/uart.h"
#include "driverlib/can.h"
#include "utils/uartstdio.h"
#include "string.h"
#include "inc/hw_i2c.h"
#include "driverlib/i2c.h"
#include "driverlib/adc.h"
#include "inc\hw_gpio.h"
#include "commons.h"
#include "crc8.h"

in commons.h 

extern void BoardConfig(void);

and in Main.c

#include "common_header_h.h"

unsigned long TempCountVar = 0;

void MKM_Initialitation(unsigned char ucNumberOfCells)
{
	//Initialize all GPIO
    BoardConfig();


    // Get number of cells
    ucNumberOfCells = 10;



void MKM_code_Initial_setting(unsigned char ucNumberOfCells)
{
	    GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_5, 0X20);
            GPIOPinWrite(GPIO_PORTE_BASE, GPIO_PIN_3, 0X08); 
	    chTimer = getTimeStamp();
	    sleepTimer = getSeconds();
}


int main(void)
{

	unsigned char ucNumberOfCells = 10;


    MKM_Initialitation(ucNumberOfCells);
    MKM_code_Initial_setting(ucNumberOfCells);


    while(1)
	{
        TempCountVar++; // Dummy Count


}

	}
}

In when i run above code its going into fault isr in 

void MKM_code_Initial_setting(unsigned char ucNumberOfCells)
{
	    GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_5, 0X20);
            GPIOPinWrite(GPIO_PORTE_BASE, GPIO_PIN_3, 0X08); 
	    chTimer = getTimeStamp();
	    sleepTimer = getSeconds();
}

if i comment 

GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_5, 0X20);

its passing below line in debug mode

      GPIOPinWrite(GPIO_PORTE_BASE, GPIO_PIN_3, 0X08); 

My question is both are same functions why it is working with PORT E whynot with port B.

if i add 

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
GPIOPinTypeGPIOOutput(GPIO_PORTB_BASE, GPIO_PIN_2 | GPIO_PIN_4 | GPIO_PIN_5 );

lines above 

GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_5, 0X20);

its not going to fault isr.

Why i have to initialize again even i initialized before.

Thank You

Hello Ramesh

Which version of TIVAWare are you using?

Regards

Amit

Hi Amit,

I'm using TivaWare_C_Series-2.0.1.11577

@Ramesh.

    I noticed that at your main function, there is an extra curly brace.

- kel

Hi Markel,

                Its my mistake while pasting the code in the forum,that brace is not present in the code. 

@Ramesh,

    As you said it goes to FaultISR when the code runs into "MKM_code_Initial_setting". Put a breakpoint inside MKM_code_Initial_setting then step through the code, see which line it goes into a Fault.

   Also regarding TempCountVar++; at your while loop, is there any part of your code that resets the value to 0?

- kel

Hi Markel,

 I keep breakpoint in the code 

at the below line its going into fault isr

GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_5, 0X20);

if i add below lines 

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
GPIOPinTypeGPIOOutput(GPIO_PORTB_BASE, GPIO_PIN_2 | GPIO_PIN_4 | GPIO_PIN_5 );

its working fine.

but i already initialized that port in common.c

in MKM_code_Initial_setting  function   

GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_5, 0X20);
        GPIOPinWrite(GPIO_PORTE_BASE, GPIO_PIN_3, 0X08);

Thank You

Hi, 

RAMESH CHAND said:

GPIOPinWrite(GPIO_PORTE_BASE, GPIO_PIN_3, 0X08);

Where in your code that sets PORTE as output?

- kel

Hello Ramesh,

I took the code that you had posted and ran it on my EK-TM4C123 LaunchPad. It works without any issues. I have attached the CCS Project for your reference.

http://e2e.ti.com/cfs-file.ashx/__key/communityserver-discussions-components-files/908/5808.TM4C123_5F00_GPIOFaultISR.7z

Please do note that some functions I have commented as I do not have the proto define for them and some of the coding mistakes that Kel has highlighted have also been accounted for in the package.

First run this code w/o any modifications.

Regards

Amit

Hello Amit,

I am facuing the similar issue with the code.

On looking ate faultISR Detail, I am getting HARD FAult.

While I am running the code it goes to faultISR(), but while debugging if I try and run step by step using step info code works perfectly fine.

Could you pllease help me out with it?

Regards,

Mitesh