RTOS/LAUNCHXL-CC1310: Help adding PWM pin configuration to collector example (causes it to hang)

PWM_open() causing collector example to hang.

I am trying to add pwm output to the collector_cc1310lp(ti-rtos with CCS) example.  Initaly just trying to get it working on the Green LED to confirm pin configuration.  Going by the cc1310 pwm example that I had going and was a ble to modify I tried moving it into collector project.

First the pwm and gpt were not added in /collector_cc1310lp/Application/LaunchPad/CC13X0_LAUNCHXL.c  I added only first 4 as will need even less (not sure if not adding all could be causing issue?).  The naming was changed from cc1310 example to conform with the C:\ti\simplelink_cc13x0_sdk_1_50_00_08\examples\rtos\CC1310_LAUNCHXL\ti154stack\common\boards\CC13X0_LAUNCHXL\CC13X0_LAUNCHXL.h naming since it was being used. I think this is OK.  

/*

 *  =============================== GPTimer ===============================

 *  Remove unused entries to reduce flash usage both in Board.c and Board.h

 */

#include <ti/drivers/timer/GPTimerCC26XX.h>

GPTimerCC26XX_Object gptimerCC26XXObjects[4];

const GPTimerCC26XX_HWAttrs gptimerCC26xxHWAttrs[4] = {

    { .baseAddr = GPT0_BASE, .intNum = INT_GPT0A, .intPriority = (~0), .powerMngrId = PowerCC26XX_PERIPH_GPT0, .pinMux = GPT_PIN_0A, },

    { .baseAddr = GPT0_BASE, .intNum = INT_GPT0B, .intPriority = (~0), .powerMngrId = PowerCC26XX_PERIPH_GPT0, .pinMux = GPT_PIN_0B, },

    { .baseAddr = GPT1_BASE, .intNum = INT_GPT1A, .intPriority = (~0), .powerMngrId = PowerCC26XX_PERIPH_GPT1, .pinMux = GPT_PIN_1A, },

    { .baseAddr = GPT1_BASE, .intNum = INT_GPT1B, .intPriority = (~0), .powerMngrId = PowerCC26XX_PERIPH_GPT1, .pinMux = GPT_PIN_1B, },

};

const GPTimerCC26XX_Config GPTimerCC26XX_config[4] = {

    { &gptimerCC26XXObjects[CC13X0_LAUNCHXL_GPTIMER0], &gptimerCC26xxHWAttrs[Board_GPTIMER0A], GPT_A },

    { &gptimerCC26XXObjects[CC13X0_LAUNCHXL_GPTIMER0], &gptimerCC26xxHWAttrs[Board_GPTIMER0B], GPT_B },

    { &gptimerCC26XXObjects[CC13X0_LAUNCHXL_GPTIMER1], &gptimerCC26xxHWAttrs[Board_GPTIMER1A], GPT_A },

    { &gptimerCC26XXObjects[CC13X0_LAUNCHXL_GPTIMER1], &gptimerCC26xxHWAttrs[Board_GPTIMER1B], GPT_B },

};

/*

 *  =============================== PWM ===============================

 *  Remove unused entries to reduce flash usage both in Board.c and Board.h

 */

#include <ti/drivers/PWM.h>

#include <ti/drivers/pwm/PWMTimerCC26XX.h>

PWMTimerCC26XX_Object pwmtimerCC26xxObjects[4];

const PWMTimerCC26XX_HwAttrs pwmtimerCC26xxHWAttrs[4] = {

    { .pwmPin = Board_PWMPIN0, .gpTimerUnit = Board_GPTIMER0A },

    { .pwmPin = Board_PWMPIN1, .gpTimerUnit = Board_GPTIMER0B },

    { .pwmPin = Board_PWMPIN2, .gpTimerUnit = Board_GPTIMER1A },

    { .pwmPin = Board_PWMPIN3, .gpTimerUnit = Board_GPTIMER1B },

};

const PWM_Config PWM_config[4] = {

    { &PWMTimerCC26XX_fxnTable, &pwmtimerCC26xxObjects[Board_PWM0], &pwmtimerCC26xxHWAttrs[Board_PWM0] },

    { &PWMTimerCC26XX_fxnTable, &pwmtimerCC26xxObjects[Board_PWM1], &pwmtimerCC26xxHWAttrs[Board_PWM1] },

    { &PWMTimerCC26XX_fxnTable, &pwmtimerCC26xxObjects[Board_PWM2], &pwmtimerCC26xxHWAttrs[Board_PWM2] },

    { &PWMTimerCC26XX_fxnTable, &pwmtimerCC26xxObjects[Board_PWM3], &pwmtimerCC26xxHWAttrs[Board_PWM3] },

};

const uint_least8_t PWM_count = 4;

The init and open was added to the end of exitsting board_led.c , void Board_Led_initialize(void) ,to have it initilize so I could confirm pin was working. 

(prams and handle variable declared outside init function)

    PWM_Params_init(&laserPwmParams);

    laserPwmParams.dutyUnits = PWM_DUTY_FRACTION;

    laserPwmParams.dutyValue = 0;

    laserPwmParams.periodUnits = PWM_PERIOD_HZ;

    laserPwmParams.periodValue = LASER_PERIOD;

    laserPwm = PWM_open(Board_PWM1, &laserPwmParams);

//   PWM_setDuty(laserPwm, LASER_DUTY);

//   PWM_start(laserPwm);

 

Project builds fine, But when PWM_open is there the example seems to hang and buttons don't work and no display update.  It is continues fine if the PWM_open line is commented out.

Help please.  I have no Idea where I went wrong or where to go from here. 

I tried the only thing I expected could be an issue but it did not help(below).

Since I expected there could be a conflict with also having the existing pin_open() on same LED I moved the LED1 to an unused pin.  Moving it did not seem to cause a problem but did not prevent my issue.  Move was done by changing :

C:\ti\simplelink_cc13x0_sdk_1_50_00_08\examples\rtos\CC1310_LAUNCHXL\ti154stack\common\boards\CC13X0_LAUNCHXL\board.h 

/* These #defines allow us to reuse TI-RTOS across other device families */

#define     Board_LED0              Board_RLED

#define     Board_LED1              Board_DIO27_ANALOG //was Board_GLED

#define     Board_LED2              Board_LED0

Not sure it this was the best place and way seem like it should reassign the pin.

Thanks for any direction you can provide.