Attach to Running MSP430

Posting an answer in case someone searches for this topic...

In CCS V5.2 or later this option can be found under Project --> Properties --> Debug and Program/Memory Load options and Auto run and launch options.

and the answer for IAR is here: http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/t/243344.aspx

Dear Priya Thanigai,

I'm very new to MCU programming.  I have a very simple case that I need your help with.  I'm trying to program a "MSP430F6638" MCU to generate a signal shown below:

Amplitude:  3.3 V

Period:  10,000 us (Frequency is 100 Hz)

High Time:  10 us

Low Time:  9999 us

Duty Cycle:  0.1%:99.9%

I read through one of the sample codes shown below:

int main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  P1DIR |= BIT2+BIT3;                       // P1.2 and P1.3 output
  P1SEL |= BIT2+BIT3;                       // P1.2 and P1.3 options select
  TA0CCR0 = 512-1;                          // PWM Period
  TA0CCTL1 = OUTMOD_7;                      // CCR1 reset/set
  TA0CCR1 = 384;                            // CCR1 PWM duty cycle
  TA0CCTL2 = OUTMOD_7;                      // CCR2 reset/set
  TA0CCR2 = 128;                            // CCR2 PWM duty cycle
  TA0CTL = TASSEL_2 + MC_1 + TACLR;         // SMCLK, up mode, clear TAR

  __bis_SR_register(LPM0_bits);             // Enter LPM0
  __no_operation();                         // For debugger

Question 1:  What output pin gives us the signal?  I mean, what pin number (out of 100 on the board - the signal I need to connect to a scope).

Question 2:  I notice that this code gives you a period fo 500 us with the mentioned duty cycles.  Can I just change the value of TA0CCR0 in such a way that it gives me 10000us?  I need to use a timer and clock to give me a period of 10,000 us with high time of 10 us.  Basically, duty cycles will be 9999 us and 1 us.  How can I achieve this?

If it's possible, can you please modify the code and send it to me? (according to the above questions)

Thank you very much

Arash

Did you figure this out? I'am having the exact same problem with CCS 4.1.1 and MSP430F1611

I have tried all the solutions posted in this forum and the one suggested on http://processors.wiki.ti.com/index.php/MSP430_-_Connecting_to_a_running_target. However, my MSP430 is still resetting when I try to attach a debugger.

My configuration: CCS6, MSP430F5419A, TI MSP430-USB-Debugger (Spy-Bi-Wire)

My settings: I disabled everything related to resetting or halting in the Project Settings and in the Debug Launch Configuration.

My procedure: Connect debugger physically. Power the MSP430. Launch the debug session. -> Reset occurs

What's wrong?

SBW uses the RST pin as I/O pin for the JTAG connection. It is possible (the only explanation that comes in mind) that when starting the debug session, the MSP sees a ‘reset’ on this pin rather than an SBW signal. This might be a racing condition or a problem with the signal levels.