extended pwm library
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zloihach
parent
a0d085a0d0
commit
d1ae25e83a
330
main2.cpp
330
main2.cpp
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#include <avr/io.h>
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#include <stdint.h>
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#include <util/delay.h>
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#include <avr/io.h>
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#include <stdint.h>
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#include <util/delay.h>
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#define I2C_FREQ 100000UL
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#define F_CPU 16000000UL
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#define I2C_PRESCALER 1
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#define I2C_BITRATE ((F_CPU / I2C_FREQ) - 16) / (2 * I2C_PRESCALER)
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#define I2C_READ 1
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#define I2C_WRITE 0
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#define I2C_FREQ 100000UL
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#define F_CPU 16000000UL
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#define I2C_PRESCALER 1
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#define I2C_BITRATE ((F_CPU / I2C_FREQ) - 16) / (2 * I2C_PRESCALER)
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#define I2C_READ 1
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#define I2C_WRITE 0
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void i2c_init() {
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TWBR = I2C_BITRATE;
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}
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void i2c_init() {
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TWBR = I2C_BITRATE;
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}
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void i2c_start() {
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// отправляем START bit
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TWCR = (1 << TWINT) | (1 << TWSTA) | (1 << TWEN);
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void i2c_start() {
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// отправляем START bit
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TWCR = (1 << TWINT) | (1 << TWSTA) | (1 << TWEN);
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// ожидаем пока START bit будет успешно отправлен
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while (!(TWCR & (1 << TWINT)));
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}
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void i2c_stop() {
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// отправляем STOP bit
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TWCR = (1 << TWINT) | (1 << TWSTO) | (1 << TWEN);
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// ожидаем пока STOP bit будет успешно отправлен
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while (TWCR & (1 << TWSTO));
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}
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void i2c_write(uint8_t address, const uint8_t* data, uint8_t length) {
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i2c_start();
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// Отправляем адрес устройства с битом записи
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TWDR = address << 1 | I2C_WRITE;
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TWCR = (1 << TWINT) | (1 << TWEN);
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while (!(TWCR & (1 << TWINT)));
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for (uint8_t i = 0; i < length; i++) {
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TWDR = data[i];
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TWCR = (1 << TWINT) | (1 << TWEN);
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// ожидаем пока START bit будет успешно отправлен
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while (!(TWCR & (1 << TWINT)));
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}
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i2c_stop();
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}
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void i2c_stop() {
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// отправляем STOP bit
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TWCR = (1 << TWINT) | (1 << TWSTO) | (1 << TWEN);
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void i2c_read(uint8_t address, uint8_t* data, uint8_t length) {
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i2c_start();
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// ожидаем пока STOP bit будет успешно отправлен
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while (TWCR & (1 << TWSTO));
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}
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// Отправляем адрес устройства с битом чтения
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TWDR = address << 1 | I2C_READ;
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TWCR = (1 << TWINT) | (1 << TWEN);
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while (!(TWCR & (1 << TWINT)));
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void i2c_write(uint8_t address, const uint8_t* data, uint8_t length) {
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i2c_start();
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// Отправляем адрес устройства с битом записи
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TWDR = address << 1 | I2C_WRITE;
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TWCR = (1 << TWINT) | (1 << TWEN);
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while (!(TWCR & (1 << TWINT)));
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for (uint8_t i = 0; i < length; i++) {
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// для всех байт, кроме последнего - отправляем ACK
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if (i < length - 1) {
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TWCR = (1 << TWINT) | (1 << TWEN) | (1 << TWEA);
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while (!(TWCR & (1 << TWINT)));
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data[i] = TWDR;
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}
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// для последнего байта - отправляем NACK
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else {
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for (uint8_t i = 0; i < length; i++) {
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TWDR = data[i];
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TWCR = (1 << TWINT) | (1 << TWEN);
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while (!(TWCR & (1 << TWINT)));
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data[i] = TWDR;
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}
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i2c_stop();
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}
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void i2c_read(uint8_t address, uint8_t* data, uint8_t length) {
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i2c_start();
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// Отправляем адрес устройства с битом чтения
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TWDR = address << 1 | I2C_READ;
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TWCR = (1 << TWINT) | (1 << TWEN);
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while (!(TWCR & (1 << TWINT)));
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for (uint8_t i = 0; i < length; i++) {
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// для всех байт, кроме последнего - отправляем ACK
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if (i < length - 1) {
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TWCR = (1 << TWINT) | (1 << TWEN) | (1 << TWEA);
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while (!(TWCR & (1 << TWINT)));
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data[i] = TWDR;
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}
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// для последнего байта - отправляем NACK
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else {
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TWCR = (1 << TWINT) | (1 << TWEN);
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while (!(TWCR & (1 << TWINT)));
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data[i] = TWDR;
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}
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}
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i2c_stop();
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}
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#define F_CPU 16000000UL
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void pwm_init() {
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TCCR1A |= (1 << COM1A1) | (1 << WGM11); // non-inverting mode, Fast PWM (mode 14)
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TCCR1B |= (1 << WGM12) | (1 << WGM13) | (1 << CS10); // Fast PWM (mode 14), prescaler = 1
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DDRB |= (1 << PB1); // set pin PB1 as output
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}
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void pwm_set_frequency(uint16_t frequency) {
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uint16_t prescaler = 1;
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uint32_t top = F_CPU / (prescaler * frequency) - 1;
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ICR1 = top;
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}
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void pwm_set_duty_cycle(float dutyCycle) {
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uint16_t value = ICR1 * dutyCycle / 100.0;
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OCR1A = value;
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}
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void pwm_enable() {
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pwm_set_duty_cycle(50); // Начальная скважность
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}
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void pwm_disable() {
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pwm_set_duty_cycle(0); // Выключение ШИМ
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}
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void i2c_init();
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void i2c_start();
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void i2c_stop();
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void i2c_write(uint8_t address, const uint8_t* data, uint8_t length);
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void i2c_read(uint8_t address, uint8_t* data, uint8_t length);
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void pwm_init();
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void pwm_set_frequency(uint16_t frequency);
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void pwm_set_duty_cycle(float dutyCycle);
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void pwm_enable();
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void pwm_disable();
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const uint8_t BUTTON_PIN[] = {0, 1, 2, 3, 4, 5};
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const uint8_t PWM_SLAVE_ADDR = 9;
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uint16_t command = 0x00;
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float frequency = 1000.0;
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float dutyCycle = 50.0;
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void setup() {
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i2c_init();
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pwm_init();
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pwm_enable(); // Включение ШИМ
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// Инициализируем пины кнопок
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DDRC &= ~(1 << PINC0) & ~(1 << PINC1) & ~(1 << PINC2) & ~(1 << PINC3) & ~(1 << PINC4) & ~(1 << PINC5); // подключены кнопки на пинах А0, А1, А2, А3, А4, А5
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PORTC |= (1 << PINC0) | (1 << PINC1) | (1 << PINC2) | (1 << PINC3) | (1 << PINC4) | (1 << PINC5); // включение подтягивающего резистора
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}
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void loop() {
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// Обработка нажатий на кнопки
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checkButton(0, 0x01, 0.0);
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checkButton(1, 0x02, 0.0);
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checkButton(2, 0x03, 1.25);
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checkButton(3, 0x04, 0.8);
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checkButton(4, 0x05, 1.1);
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checkButton(5, 0x06, 0.9);
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}
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void checkButton(uint8_t pin, uint16_t cmd, float value) {
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if (bit_is_clear(PINC, pin)) {
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sendCommand(cmd, value);
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if (cmd == 0x03) {
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frequency *= value;
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pwm_set_frequency(frequency);
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} else if (cmd == 0x04) {
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frequency *= value;
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pwm_set_frequency(frequency);
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} else if (cmd == 0x05) {
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dutyCycle *= value;
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pwm_set_duty_cycle(dutyCycle);
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} else if (cmd == 0x06) {
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dutyCycle *= value;
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pwm_set_duty_cycle(dutyCycle);
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} else if (cmd == 0x02) {
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pwm_disable(); // Выключение ШИМ
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} else if (cmd == 0x01) {
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pwm_enable(); // Включение ШИМ
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}
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command = cmd;
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_delay_ms(500); // Задержка для антидребезга
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}
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}
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i2c_stop();
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}
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void sendCommand(uint16_t cmd, float value) {
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uint16_t data = (uint16_t)(value * 16.0);
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data |= cmd << 4;
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uint8_t buffer[2];
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buffer[0] = data >> 8;
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buffer[1] = data & 0xFF;
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i2c_write(PWM_SLAVE_ADDR, buffer, 2);
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#define F_CPU 16000000UL
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void pwm_init() {
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TCCR1A |= (1 << COM1A1) | (1 << WGM11); // non-inverting mode, Fast PWM (mode 14)
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TCCR1B |= (1 << WGM12) | (1 << WGM13) | (1 << CS10); // Fast PWM (mode 14), prescaler = 1
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DDRB |= (1 << PB1); // set pin PB1 as output
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}
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void pwm_set_frequency(uint16_t frequency) {
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uint16_t prescaler = 1;
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uint32_t top = F_CPU / (prescaler * frequency) - 1;
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ICR1 = top;
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}
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void pwm_set_duty_cycle(float dutyCycle) {
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uint16_t value = ICR1 * dutyCycle / 100.0;
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OCR1A = value;
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}
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void pwm_enable() {
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pwm_set_duty_cycle(50); // Начальная скважность
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}
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void pwm_disable() {
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pwm_set_duty_cycle(0); // Выключение ШИМ
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}
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void i2c_init();
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void i2c_start();
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void i2c_stop();
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void i2c_write(uint8_t address, const uint8_t* data, uint8_t length);
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void i2c_read(uint8_t address, uint8_t* data, uint8_t length);
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void pwm_init();
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void pwm_set_frequency(uint16_t frequency);
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void pwm_set_duty_cycle(float dutyCycle);
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void pwm_enable();
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void pwm_disable();
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const uint8_t BUTTON_PIN[] = {0, 1, 2, 3, 4, 5};
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const uint8_t PWM_SLAVE_ADDR = 9;
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uint16_t command = 0x00;
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float frequency = 1000.0;
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float dutyCycle = 50.0;
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void setup() {
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i2c_init();
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pwm_init();
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pwm_enable(); // Включение ШИМ
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// Инициализируем пины кнопок
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DDRC &= ~(1 << PINC0) & ~(1 << PINC1) & ~(1 << PINC2) & ~(1 << PINC3) & ~(1 << PINC4) & ~(1 << PINC5); // подключены кнопки на пинах А0, А1, А2, А3, А4, А5
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PORTC |= (1 << PINC0) | (1 << PINC1) | (1 << PINC2) | (1 << PINC3) | (1 << PINC4) | (1 << PINC5); // включение подтягивающего резистора
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}
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void loop() {
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// Обработка нажатий на кнопки
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checkButton(0, 0x01, 0.0);
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checkButton(1, 0x02, 0.0);
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checkButton(2, 0x03, 1.25);
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checkButton(3, 0x04, 0.8);
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checkButton(4, 0x05, 1.1);
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checkButton(5, 0x06, 0.9);
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}
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void checkButton(uint8_t pin, uint16_t cmd, float value) {
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if (bit_is_clear(PINC, pin)) {
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sendCommand(cmd, value);
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if (cmd == 0x03) {
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frequency *= value;
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pwm_set_frequency(frequency);
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} else if (cmd == 0x04) {
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frequency *= value;
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pwm_set_frequency(frequency);
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} else if (cmd == 0x05) {
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dutyCycle *= value;
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pwm_set_duty_cycle(dutyCycle);
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} else if (cmd == 0x06) {
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dutyCycle *= value;
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pwm_set_duty_cycle(dutyCycle);
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} else if (cmd == 0x02) {
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pwm_disable(); // Выключение ШИМ
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} else if (cmd == 0x01) {
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pwm_enable(); // Включение ШИМ
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}
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command = cmd;
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_delay_ms(500); // Задержка для антидребезга
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}
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}
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void sendCommand(uint16_t cmd, float value) {
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uint16_t data = (uint16_t)(value * 16.0);
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data |= cmd << 4;
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uint8_t buffer[2];
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buffer[0] = data >> 8;
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buffer[1] = data & 0xFF;
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i2c_write(PWM_SLAVE_ADDR, buffer, 2);
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Serial.print("Command: ");
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Serial.print(cmd);
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Serial.print(", Value: ");
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Serial.println(value, 4);
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}
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Serial.print("Command: ");
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Serial.print(cmd);
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Serial.print(", Value: ");
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Serial.println(value, 4);
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}
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