C++ (Cpp) i2c_sda_high Examples

Example #1

File: laser-range-finder.c Project: robertquaas/laser-range-finder-bricklet

uint8_t i2c_recv_byte(bool ack) {
	uint8_t value = 0;

	for(int8_t i = 7; i >= 0; i--) {
		i2c_scl_low();
		i2c_sda_high(); // allow slave to read
		i2c_sleep_halfclock();
		i2c_scl_high();
		if(i2c_sda_value()) {
			value |= (1 << i);
		}
		i2c_sleep_halfclock();
	}

	// ACK
	i2c_scl_low();
	if(ack) {
		i2c_sda_low();
	} else {
		i2c_sda_high();
	}
	i2c_sleep_halfclock();
	i2c_scl_high();
	i2c_sleep_halfclock();

	return value;
}

Example #2

File: Wire.cpp Project: erictsai30/RFID_Kit

boolean i2c_get_ack(Port port) {
	i2c_sda_high(port);
	i2c_scl_high(port);

	bool ret =!digitalRead(port.sda);
	i2c_scl_low(port);
	return ret;
}

Example #3

File: laser-range-finder.c Project: robertquaas/laser-range-finder-bricklet

void i2c_stop(void) {
	i2c_scl_low();
	i2c_sda_low();
	i2c_sleep_halfclock();
	i2c_scl_high();
	i2c_sleep_halfclock();
	i2c_sda_high();
	i2c_sleep_halfclock();
}

Example #4

File: laser-range-finder.c Project: robertquaas/laser-range-finder-bricklet

bool i2c_send_byte(const uint8_t value) {
	for(int8_t i = 7; i >= 0; i--) {
		i2c_scl_low();
		if((value >> i) & 1) {
			i2c_sda_high();
		} else {
			i2c_sda_low();
		}
		i2c_sleep_halfclock();
		i2c_scl_high();
		i2c_sleep_halfclock();
	}

Example #5

File: Wire.cpp Project: erictsai30/RFID_Kit

void i2c_shift_out(Port port, uint8 val) {
	int i;
	for (i=0;i<8;i++) {
		if((val & 0x80) != 0) {
			i2c_sda_high(port);
		} else {
			i2c_sda_low(port);
		}
		val <<= 1;
		i2c_scl_high(port);
		i2c_scl_low(port);
	}
}

Example #6

File: Wire.cpp Project: erictsai30/RFID_Kit

uint8 i2c_shift_in(Port port) {
	uint8 data = 0;
	i2c_sda_high(port);

	int i;
	for (i=0; i<8; i++) {
		data <<= 1;
		i2c_scl_high(port);
		if(digitalRead(port.sda)) {
			data |= 1;
		}
		i2c_scl_low(port);
	}

	return data;
}

Example #7

File: Wire.cpp Project: DuinoPilot/openstm32sw

void i2c_shift_out(Port port, uint8 val) {
	int i;
	for (i=0;i<8;i++) {
		if((val & 0x80) != 0) {
			i2c_sda_high(port);
		} else {
			i2c_sda_low(port);
		}
		val <<= 1;
		i2c_scl_high(port);
		i2c_scl_low(port);
	}
	/*
	i2c_sda_high(port);
	i2c_scl_high(port);
	bool nack = digitalRead(port.sda);
	i2c_scl_low(port);
	*/

}

Example #8

File: Wire.cpp Project: erictsai30/RFID_Kit

void i2c_send_nack(Port port) {
	i2c_sda_high(port);
	i2c_scl_high(port);
	i2c_scl_low(port);
}

Example #9

File: Wire.cpp Project: erictsai30/RFID_Kit

void i2c_stop(Port port) {
	i2c_sda_low(port);
	i2c_scl_high(port);
	i2c_sda_high(port);
}