ako aj 4 nezavisle priebehy pre viac faz. Uz len ten osciloskop.
http://ww1.microchip.com/downloads/en/A ... 03212A.pdf
Kód: Vybrat vše
#define SIGNAL_PERIOD_EXAMPLE_VALUE (0xC8)
#define SIGNAL_DUTY_CYCLE_EXAMPLE_VALUE (0x64)
#include <avr/io.h>
/*Using default clock 3.3MHz */
void TCD0_init(void);
void TCD0_enableOutputChannels(void);
void PORT_init(void);
void TCD0_init(void)
{
/* set the waveform mode */
TCD0.CTRLB = TCD_WGMODE_DS_gc;
/* set the signal period */
TCD0.CMPBCLR = SIGNAL_PERIOD_EXAMPLE_VALUE;
/* the signals are alternatively active and a small
symmetric dead time is needed */
TCD0.CMPBSET = SIGNAL_DUTY_CYCLE_EXAMPLE_VALUE
+ 1;
TCD0.CMPASET = SIGNAL_DUTY_CYCLE_EXAMPLE_VALUE - 1;
/* ensure ENRDY bit is set */
while(!(TCD0.STATUS & TCD_ENRDY_bm))
{
;
}
TCD0.CTRLA = TCD_CLKSEL_20MHZ_gc /* choose the timer's clock */
| TCD_CNTPRES_DIV1_gc /* choose the prescaler */
| TCD_ENABLE_bm; /* enable the timer */
}
void TCD0_enableOutputChannels(void)
{
/* enable write protected register */
CPU_CCP = CCP_IOREG_gc;
TCD0.FAULTCTRL = TCD_CMPAEN_bm /* enable channel A */
| TCD_CMPBEN_bm; /* enable channel B */
}
void PORT_init(void)
{
PORTA.DIR |= PIN4_bm /* set pin 4 as output */
| PIN5_bm; /* set pin 5 as output */
}
int main(void)
{
PORT_init();
TCD0_enableOutputChannels();
TCD0_init();
/* Replace with your application code */
while (1)
{
;
}
}
Kód: Vybrat vše
#define SETTLING_TIME_EXAMPLE_VALUE (0x02)
#define DUTY_CYCLE_EXAMPLE_VALUE (0xF6)
#include <avr/io.h>
/*Using default clock 3.3MHz */
void TCD0_init(void);
void TCD0_enableOutputChannels(void);
void EVENT_SYSTEM_init(void);
void PORT_init(void);
void TCD0_init(void)
{
/* set the waveform mode */
TCD0.CTRLB = TCD_WGMODE_FOURRAMP_gc;
/* set channel D to match channel B */
TCD0.CTRLC = TCD_CMPDSEL_bm;
/* set the settling time and duty cycle for the signals*/
TCD0.CMPASET = SETTLING_TIME_EXAMPLE_VALUE;
TCD0.CMPACLR = DUTY_CYCLE_EXAMPLE_VALUE;
TCD0.CMPBSET = SETTLING_TIME_EXAMPLE_VALUE;
TCD0.CMPBCLR = DUTY_CYCLE_EXAMPLE_VALUE;
TCD0.EVCTRLA = TCD_CFG_FILTER_gc /* set the anti-spike filter */
| TCD_EDGE_FALL_LOW_gc /* set the 'fault' state */
| TCD_TRIGEI_bm; /* enable input channel A */
/* set the input mode */
TCD0.INPUTCTRLA = TCD_INPUTMODE_WAIT_gc;
/* ensure ENRDY bit is set */
while(!(TCD0.STATUS & TCD_ENRDY_bm))
{
;
}
TCD0.CTRLA = TCD_CLKSEL_20MHZ_gc /* choose the timer's clock */
| TCD_CNTPRES_DIV4_gc /* choose the prescaler */
| TCD_ENABLE_bm; /* enable the timer */
}
void TCD0_enableOutputChannels(void)
{
/* enable write protected register */
CPU_CCP = CCP_IOREG_gc;
TCD0.FAULTCTRL = TCD_CMPAEN_bm /* enable channel A */
| TCD_CMPBEN_bm /* enable channel B */
| TCD_CMPCEN_bm /* enable channel C */
| TCD_CMPDEN_bm; /* enable channel D */
}
void EVENT_SYSTEM_init(void)
{
EVSYS.ASYNCCH2 = EVSYS_ASYNCCH2_PORTC_PIN5_gc;
EVSYS.ASYNCUSER6 = EVSYS_ASYNCUSER6_ASYNCCH2_gc;
}
void PORT_init(void)
{
/* set pin 4 and pin 5 of port A as output */
PORTA.DIR |= PIN4_bm
| PIN5_bm;
/* set pin 0 and pin 1 of port C as output */
PORTC.DIR |= PIN0_bm
| PIN1_bm;
/* set pin 5 of port C as input */
PORTC.DIR &= ~PIN5_bm;
/* enable pull-up resistor for pin 5 of port C */
PORTC.PIN5CTRL = PORT_PULLUPEN_bm;
}
int main(void)
{
PORT_init();
EVENT_SYSTEM_init();
TCD0_enableOutputChannels();
TCD0_init();
/* Replace with your application code */
while (1)
{
;
}
}
