C++ (Cpp) avr_i2c_init Examples

Example #1

File: chip.c Project: lazlo/lzortos

int chip_init(void)
{
	avr_timer1_init(CONFIG_TIMER1_TICK_MS);
	avr_usart_init(CONFIG_USART_BAUD);
#ifdef CONFIG_SPI
	avr_spi_init();
#endif
#ifdef CONFIG_I2C
	avr_i2c_init();
#endif
#ifdef CONFIG_ADC
	avr_adc_init();
#endif
	return 0;
}

Example #2

File: multiwii.c Project: AdamRLukaitis/martink

void mwii_init(void){
	//soc_init(); 
	time_init(); 
	uart_init(0, 38400, uart_buffer[0], 64, uart_buffer[1], 64); 
	
	// setup printf stuff (specific to avr-libc)
	fdev_set_udata(&uart_fd, uart_get_serial_interface(0)); 
	stdout = &uart_fd; 
	stderr = &uart_fd;
	
	gpio_init();
	//spi_init(); 
	avr_i2c_init(0); 
	pwm_init(); 
	//adc0_init_default(); 
	sei(); 
	
	/*
	// setup stdout and stderr (avr-libc specific) 
	fdev_setup_stream(stdout, _serial_fd_putc, _serial_fd_getc, _FDEV_SETUP_RW); 
	fdev_set_udata(stdout, uart_get_serial_interface(0)); 
	fdev_setup_stream(stderr, _serial_fd_putc, _serial_fd_getc, _FDEV_SETUP_RW); 
	fdev_set_udata(stderr, uart_get_serial_interface(0)); 
*/
	// first thing must enable interrupts
	//kprintf("BOOT\n");
	
	gpio_configure(GPIO_MWII_LED, GP_OUTPUT); 
	//gpio_set(GPIO_MWII_LED); 
	
	gpio_configure(GPIO_MWII_MOTOR0, GP_OUTPUT);
	gpio_configure(GPIO_MWII_MOTOR1, GP_OUTPUT);
	gpio_configure(GPIO_MWII_MOTOR2, GP_OUTPUT);
	gpio_configure(GPIO_MWII_MOTOR3, GP_OUTPUT);
	
	gpio_configure(GPIO_MWII_RX0, GP_INPUT | GP_PULLUP | GP_PCINT);
	gpio_configure(GPIO_MWII_RX1, GP_INPUT | GP_PULLUP | GP_PCINT);
	gpio_configure(GPIO_MWII_RX2, GP_INPUT | GP_PULLUP | GP_PCINT);
	gpio_configure(GPIO_MWII_RX3, GP_INPUT | GP_PULLUP | GP_PCINT);
	
	// calibrate escs
	//mwii_calibrate_escs(); 
	
	// set initial motor speeds
	mwii_write_motors(MINCOMMAND, MINCOMMAND, MINCOMMAND, MINCOMMAND); 
	
	brd->gpio0 = gpio_get_parallel_interface();
	
	brd->twi0 = avr_i2c_get_interface(0);
	
	/* 
	// I2C scanner 
	for(int c = 0; c < 255; c++){
		uint8_t buf[2]; 
		i2c_start_read(brd->twi0, c, buf, 1); 
		if(i2c_stop(brd->twi0) == 1 && c & 1){
			kprintf("Device %x@i2c\n", c >> 1); 
		}
		delay_us(10000); 
	}
	*/
	gpio_set(GPIO_MWII_LED);
	
	i2cblk_init(&brd->mpublk, brd->twi0, MPU6050_ADDR, 8, I2CBLK_IADDR8); 
	mpu6050_init(&brd->mpu, i2cblk_get_interface(&brd->mpublk)); 
	//kdebug("MPU6050: %s\n", ((mpu6050_probe(&brd->mpu))?"found":"not found!")); 
	
	i2cblk_init(&brd->bmpblk, brd->twi0, BMP085_ADDR, 8, I2CBLK_IADDR8); 
	bmp085_init(&brd->bmp, i2cblk_get_interface(&brd->bmpblk)); 
	//kdebug("BMP085: found\n");
	
	i2cblk_init(&brd->hmcblk, brd->twi0, HMC5883L_ADDR, 8, I2CBLK_IADDR8); 
	hmc5883l_init(&brd->hmc, i2cblk_get_interface(&brd->hmcblk));
	
	gpio_clear(GPIO_MWII_LED); 
	
	hcsr04_init(&brd->hcsr, brd->gpio0, GPIO_MWII_HCSR_TRIGGER, GPIO_MWII_HCSR_ECHO); 
	
	ASYNC_PROCESS_INIT(&brd->process, mwii_task); 
	ASYNC_QUEUE_WORK(&ASYNC_GLOBAL_QUEUE, &brd->process); 
	
	//mwii_calibrate_mpu6050(); 
	// let the escs init as well
	delay_us(500000L); 
}