I am trying to control a device using PWM by TMS320C28027 due to absence of this part number I choose 28341, I think they should be smilar, In below code I got wrong results for pwmval parameter in the line " int pwmval=32000+pI;". the code:
int error=(*setval_pos-(Uint16)ECap1Regs.CAP1);
if(abs(error)<1000)
{
EPwm3Regs.CMPA.half.CMPA=32000;
}
else
{
int32 pI=2*error;
int pwmval=32000+pI;
if(pwmval<0xFFFF && pwmval>0)
EPwm3Regs.CMPA.half.CMPA=(Uint16)pwmval;
}
I have tested "int32 pwmval=32000+pI" with no success.
