[Moved]: AD7746 + Arduino Uno I2C

[nanana_1011]

Hi,

0x90 = read address
0x91 = write address

If I use arduino uno to read the registers from AD7746, should I use 0x90 or 0x91?

 

[APOK87]

Re: AD7746 + Arduino Uno I2C

The link below has some source code that may help you.
**broken link removed**

If you're trying to read from the AD776, assuming you have your register values correct you should use 0x90.

TC

 

[nanana_1011]

Hello!

For I2C in arduino, the register is 1 byte.
If I have another IC having 2-byte register, how can I communicate with it using arduino?

 

[milan.rajik]

You have to send the two byte address. I guess high byte first and then low address byte. Check the device datasheet. What device it is ?

 

[nanana_1011]

It is ZSSC3123.

 

[nanana_1011]

Are you familiar with this IC?

 

[nanana_1011]

Also, if I retrieve value from IC, it is 2 bytes.
Do I save the value and obtain the high byte and then low byte?