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- /*
- * 20210313_m32u4_stepper.c
- *
- * Created: 2021-03-13 12:45:31
- * Author : uwezi
- */
- #define F_CPU 8000000UL
- #include <avr/io.h>
- #include <util/delay.h>
- const uint8_t steps[] = {0b0001, 0b0101, 0b0100, 0b0110, 0b0010, 0b1010, 0b1000, 0b1001};
- // bipolar stepper motor connected through a SN754410 driver
- // D0 A1
- // D1 A2
- // D2 B1
- // D3 B2
- int main(void)
- {
- uint8_t i=0;
- uint16_t j;
- DDRD = 0b00001111;
- PORTD = 0b00000000;
- while (1)
- {
- for (j=0; j<1000; j++)
- {
- PORTD = steps[i];
- i ++;
- i %= 8;
- _delay_ms(1);
- }
- for (j=0; j<1000; j++)
- {
- PORTD = steps[7-i];
- i ++;
- i %= 8;
- _delay_ms(1);
- }
- }
- }
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