I2C-Detect/e54/asf4/drivers/p_i2c.c

#include "p_i2c.h"
#include "hal_i2c_m_sync.h"
#include "p_usart.h"


void p_i2c_init(void)
{

	i2c_m_sync_enable(&I2C_0);
}

int p_i2c_write(const uint8_t* const data, uint16_t data_len)
{
	return io_write(&I2C_0.io, data, data_len);
}

int p_i2c_read(uint8_t* data, uint16_t len)
{
	return io_read(&I2C_0.io, data, len);
}

void p_i2c_scan(void)
{
	PDEBUG("   ");
	for(int ind = 0; ind < 16; ind++)
	{
		PDEBUG(" %02x", ind);
	}
	uint8_t data = 0x00;
	for(int ind = 0; ind <= 119; ind++)
	{
		if (ind % 16 == 0)
		{
			PDEBUG("\r\n%02x:", ind & 0xF0);
		}
		i2c_m_sync_set_slaveaddr(&I2C_0, ind, I2C_M_SEVEN);
		int ret = p_i2c_write(&data, 1);
		if(ret != 1)
		{
			PDEBUG(" --");
		}
		else
		{
			PDEBUG(" %02x", ind);
		}
	}
	PDEBUG("\r\n");
}