CCS/MSP430F135: MSP430: Can't Single Step Target Program: Could not single step device

Hello,

You can't single step across an LPM entry. In Line 9 of your code, you're entering the LPM0 low power mode. You shouldn't see this error if you remove the LPM mode for debugging purposes. Please read through these threads to understand this better.

Regards,

James

As a follow-up, I see you're using one of our early devices from the F1xx family and also our legacy MSP-FET430UIF. Have you heard about our newer FRAM devices? Specifically, the MSP430FR2xx devices. I've linked a few resources below including training videos and a helpful eBook covering 25 basic functions using these devices.

MSP430™ Value Line & General Purpose Microcontrollers

25 Functions for 25 Cents Video Series

View the eBook: Enhancing analog and digital functions for $0.25

Also, I would recommend upgrading your legacy MSP-FET430UIF to our latest MSP-FET debugger. I hope this helps!

Regards,

James

HI sir

NOw i m try with another code for blinking on MSP430F135 even this code i get same error :

MSP430: Loading complete. Code Size - Text: 178 bytes Data: 2 bytes.
MSP430: Can't Single Step Target Program: Could not single step device

this is code

#include <msp430.h>

int main(void) {
WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer
P1DIR |= 0x01; // Set P1.0 to output direction

for(;;) {
volatile unsigned int i; // volatile to prevent optimization

P1OUT ^= 0x01; // Toggle P1.0 using exclusive-OR

i = 10000; // SW Delay
do i--;
while(i != 0);
}

return 0;
}

i m using MSP-FET430UIF 4 wire JTAG debugger. 

pls sir get me out of this problem.

#include <msp430.h>				


/**
 * blink.c
 */
void main(void)
{
	WDTCTL = WDTPW | WDTHOLD;		// stop watchdog timer
	P1DIR |= 0x01;					// configure P1.0 as output

	volatile unsigned int i;		// volatile to prevent optimization

	while(1)
	{
		P1OUT ^= 0x01;				// toggle P1.0
		for(i=10000; i>0; i--);     // delay
	}
}

Does your code halt at main() after downloading/debugging on your device?

Yes.  code halt at main() after downloading.

Are you trying to step into a function or trying to step over one?

i m trying to step over after downloading its gives error.

MSP430: Can't Single Step Target Program: Could not single step device

If so, which one?

please find attached file.

what are your compiler optimization settings?

pls see attached file optimizatio at 0 level.

Are you using the debug version of the project?

yes sir.

What version of CCS are you using?

i m using Code Composer Studio

Version: 8.2.0.00007

Can you try upgrading to the latest version?

this is latest version on TI web site.

How are you creating your project in CCS? I would highly recommend importing one of the MSP430F135 code examples into CCS and then downloading/debugging on your device.

yes i have imported project from MSP430F135 code example.

I'm concerned that the outdated MSP-FET430UIF is causing the issue behind the scenes. You could also try updating the debugger's firmware. Also, are you using a custom board or one of our target boards?

i have updated debugger firmware of MSP-FET430F135. i m using custom board.

please sir i m finding solution.

Try checking your JTAG interface, since you're using a custom board. Also, be sure that your JTAG cable isn't longer than 8 inches (or 20 cm) per the MSP430 Hardware Tools User's Guide.

Regards,

James