int eep_write_page(uint32_t addr, uint8_t *buf, uint32_t len)
{
int ret;
uint8_t chip_addr;
chip_addr = (addr/256) + eep_dev.addr;
ret = I2C_BurstWrite(eep_dev.bus_instance, chip_addr, addr%256, 1, buf, len);
while(I2C_Probe(eep_dev.bus_instance, eep_dev.addr));
return ret;
}
/**
* \brief i2c bus scan test
* @param[in] MAP I2C引脚配置缩略图,详见i2c.h
* \retval None
*/
void I2C_Scan(uint32_t MAP)
{
uint8_t i;
uint8_t ret;
uint32_t instance;
instance = I2C_QuickInit(MAP, 100*1000);
for(i = 1; i < 127; i++)
{
ret = I2C_Probe(instance , i);
if(!ret)
{
LIB_TRACE("ADDR:0x%2X(7BIT) | 0x%2X(8BIT) found!\r\n", i, i<<1);
}
}
}
int eep_init(uint32_t instance)
{
uint32_t i;
eep_dev.bus_instance = instance;
for(i=0;i<ARRAY_SIZE(eep_addr);i++)
{
if(!I2C_Probe(instance, eep_addr[i]))
{
eep_dev.addr = eep_addr[i];
return EEP_OK;
}
}
return EEP_ERROR;
}
