TIVA Launchpad code downloading failure

Hello Shashwat,

"Resume" button does not work is a generic issue description. Please describe the issue more comprehensively.

1. Does the Lab-1 work as expected?

2. When you stop and resume then it does not work?

3, Are you using TM4C123 or TM4C129 LaunchPad?

Regards

Amit

Hi Amit,

1) Lab 1 doesn't seems like work. I noticed this after changing the bit to glow the other LED but it's not working.

2) The issue with the resume button is that I am not able to get the active resume button. It remains inactive even after downloading the flash. As I have seen in MSP430 launchpad that after downloading the code it becomes active to run the code. But in this case it remains inactive so how can I run the code.

 3) I am using TM4C123GH6PM  Launchpad.

Thanks,

Shaswat 

Hello Shashwat,

I would require you to post the Lab-1 CCS project that you have as it seems from your post that you have modified it.

Regards

Amit

Hi Amit,

Here is the code-)

int main(void) {
	// Please note – after a POR, the controller starts with PIOSC 16 MHz clock
	// Enable and Configure GPIO here - SysCtlPeripheralEnable function
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);

	// Configure pin 1 as output
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1);

	// while() function here
	while(1) {
		        // Turn on the LED
		        GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1,1<<1);
		        // Delay for some time
		        SysCtlDelay(5333333);
		        // Turn off the LED
		        GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1,0<<1);
		        // Delay for some time
		        SysCtlDelay(5333333);
	}

}

Hi,

   I think you have CCS settings, not set properly. I am not familiar with the lab files for Tiva Launchpad. But, there should be a section there that discuses how to set CCS for your Tiva Launchpad.

-kel

Hello Markel,

I made all those setting that are mentioned in the PDF file before using the launchpad. I already cross-verified it and that's fine. Now what I found next that after downloading the code I clicked on  the dissembly and it shows "No source available for 0xffffffe" and at every memory map location it shows invalid target memory access..

If its in my CCS installation issue then Is there any other IDE that works with my launchpad?

Hello Shashwat,

I have already asked for the full CCS project. Just the source code (and as KEL mentioned) is not sufficient.

Regards

Amit

Hello Amit,

Here is the reference code,

#include <stdint.h>
#include <stdbool.h>

#include "inc/hw_memmap.h"
#include "inc/hw_ints.h"
#include "inc/hw_types.h"

#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"


int main(void) {
	// Please note – after a POR, the controller starts with PIOSC 16 MHz clock
	// Enable and Configure GPIO here - SysCtlPeripheralEnable function
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);

	// Configure pin 1 as output
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1);

	// while() function here
	while(1) {
		        // Turn on the LED
		        GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1,1<<1);
		        // Delay for some time
		        SysCtlDelay(5333333);
		        // Turn off the LED
		        GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1,0<<1);
		        // Delay for some time
		        SysCtlDelay(5333333);
	}

}

Hello Shaswat,

When I asked for the CCS project, I do not mean just the C File. It means the entire directory in the workspace with all the files.

Anyways, I ran the code on my setup with my CCS project and the RED blinks as expected. I am able to Pause and Resume the code and view the disassembly.

Most probably your launchpad is locked. You can use the LMFlashProgrammer to unlock the device. Please do go through the steps to do so

1. Press Reset and Plug the USB cable

2. Run the unlock sequence in LMFlashProgrammer

3. Release the Reset

4. Power cycle the launchpad.

If the issue persists then send me entire project and not just one file.

Regards

Amit

7608.TIVA.rar

Hi Amit ,

I tried with the LMFlashProgrammer but still its not working.

I have uploaded the entire workspace project File. Kindly check.

Hi Amit,

Thanks a Ton. It works fine as I was expected.

But onw more thing to know for the knowledge purpose that how this file has been excluded from the directory. Is there any CCS setting mistake or it is by default configuration??  I am a newbie in arm micro-controller so is there code examples available for tiva launchpad, like code examples available for MSP430 launchpad. 

Regards,

Shaswat