I have an ic MCP3428, I'm trying to connect it by I2C. Now problem is that I'm writing a code to figure out what the exact I2C address is? but it doesn't work

[RSafa]

for(uint8_t i=0;i<255;i++)

{

HAL_Delay(10);

if(HAL_I2C_IsDeviceReady(&hi2c1,i,2,20)==HAL_OK)

{

uint8_t address=i;

break;

}

}

[Ozone]

Are you sure the function HAL_I2C_IsDeviceReady() really probes the bus ?

The I2C address of the MCP3428 is well defined, see section 5.3 of the datasheet, especiall fig. 5-1.

Address bits A2 and A1 are defined by your hardware, A0 by the access type.

No need to guess or probe the bus.

[RSafa]

you're right bro just before coding i wanted to test whether i could connect it or not as a test

but i couldn't

unbelievably it worked by Arduino

[RSafa]

At the start of any I2C based IC

I test it by this code