Hi,
I am using Sin wave gen library for 3 phase sine wave generation2538.sgen.h2117.sgen.h
/*
* sgen.c
*
* Created on: Oct 1, 2014
* Author: com
*/
#include "sgen.h"
SGENT_3 sgen = SGENT_3_DEFAULTS;
void sgen_init(void)
{
/* Signal Generator module initialisation */
sgen.offset = 0;
sgen.gain = 0x7fff; /* gain=1 in Q15 */
sgen.freq = 5369; /* freq = (Required Freq/Max Freq)*2^15 */
/* = (50/305.17)*2^15 = 5369 */
sgen.step_max = 1000; /* Max Freq= (step_max * sampling freq)/65536 */
/* Max Freq = (1000*20k)/65536 = 305.17 */
}
In ADC ISR I am using out signal of SGEN to apply PWM signal.
sgen.calc(&sgen);
sgen.out1 = (Uint16)(sgen.out1 * SINE_PRD); // Period valur for 20Khz signal
sgen.out2 = (Uint16)(sgen.out2 * SINE_PRD);
sgen.out3 = (Uint16)(sgen.out3 * SINE_PRD);
EPwm1Regs.CMPA.half.CMPA = (Uint16)sgen.out1;
EPwm2Regs.CMPA.half.CMPA = (Uint16)sgen.out2;
EPwm3Regs.CMPA.half.CMPA = (Uint16)sgen.out3;
but I didn't get proper pwm.
Is there any mistake while using SGEN lib.
Please reply me
Regards,
Sagtar
