PWM Duty Cycle generation with Floating Point Output

Manjunathan,

It looks like you are only calling hetInit() in your main function.
Try calling pwmStart(hetRAMBASE_t * hetRAM,uint32 pwm);
(from het.h). with the # of the PWM that you want to start.

This # is not the pin # but the number corresponding to the PWM in HalCoGen's Gui - of which there are pwm0 - pwm7
defined in the same header file. You'll need to check halcogen to see which pin the PWM you want comes out on since
this is all configurable.

If you want to change the duty or period look at the other functions like:
void pwmStop(hetRAMBASE_t * hetRAM,uint32 pwm);
void pwmSetDuty(hetRAMBASE_t * hetRAM,uint32 pwm, uint32 pwmDuty);
void pwmSetSignal(hetRAMBASE_t * hetRAM,uint32 pwm, hetSIGNAL_t signal);

-Anthony

Thank you Mr.Anthony F. Seely 

I have written some codes to obtain floating point output in Duty cycle such as 7.5, 7.6 etc.

But while building the code errors are generated

my requirement is duty cycle with floating point output (i.e 7.5,7.6 etc)

Codes:

hetSIGNAL_t setup_pwm;
//hetSIGNAL_t Set_Duty_Period2;
/* USER CODE END */

void main(void)
{
/* USER CODE BEGIN (3) */

/* Initialize HET driver */
hetInit();
setup_pwm.period =(float64)1e6/2000; //2 khz

uint32 Dutcycle = setup_pwm.period*0.075;
uint32 Porcentdutty=0.075*100;
pwmSetSignal(hetRAM1, pwm1, setup_pwm);
pwmSetDuty_full(hetRAM1, pwm1, Porcentdutty, Dutcycle);
pwmStart(hetRAM1, pwm1);
/* Run forever */
while(1);

/* USER CODE END */
}

 while building following errors are generated

1.

Description Resource Path Location Type
unresolved symbol pwmSetDuty_full, first referenced in ./source/sys_main.obj pwm1 C/C++ Problem

2.

Description Resource Path Location Type
 unresolved symbols remain pwm1 

3.

Description Resource Path Location Type
#10010 errors encountered during linking; "pwm1.out" not built pwm1 C/C++ Problem

Warings:

1.

Description Resource Path Location Type
<a href="file:/c:/ti/ccsv6/tools/compiler/dmed/HTML/225.html">#225-D</a> function "pwmSetDuty_full" declared implicitly sys_main.c /pwm1/source line 85 C/C++ Problem

Please help me sort out the problem sir

Thanks and regards

K.Manjunathan PSGIAS 

 

Thank you Mr.Anthony Seely