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Explorer
Explorer
6,206 Views
Registered: ‎11-17-2015

I2C Slave address Si570 on ZC702 board.

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Hi, there

 

I am reading up the slides on how to program the XTP181 ZC702 Si570 Programming. 

My idea is to directly write to the Si570 to change the output frequency. 

 

The XTP181 source code writes to EEPROM instead of the Si570 itself. And the Si570 datasheet says the "The device I2C address is specified in the part number.". I cant seem to get the number. 

 

How can I get the address? 

 

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Explorer
Explorer
11,232 Views
Registered: ‎11-17-2015

Re: I2C Slave address Si570 on ZC702 board.

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Thank you htsvn and gnarahar. 

I guess it's 5D since the si570_programming.c works on my board and the address in the source code uses 5D. 

 

 

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Moderator
Moderator
6,200 Views
Registered: ‎07-23-2015

Re: I2C Slave address Si570 on ZC702 board.

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@lis_user1 From the BOM, the part# is 570BAB000544DG . Input that here 

http://www.silabs.com/VCXOPartNumber/Pages/default.aspx

 

You will get the I2C address as 5D (hex)

 

 

si570_i2c.JPG

- Giri
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Xilinx Employee
Xilinx Employee
6,190 Views
Registered: ‎08-02-2007

Re: I2C Slave address Si570 on ZC702 board.

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hi,

 

this information is available in the schematic. Refer to the page 2 of http://www.xilinx.com/support/documentation/boards_and_kits/zc702_zvik/xtp185-zc702-schematic-rev1-1.pdf

 

snapshot attached.

 

--hs

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Explorer
Explorer
11,233 Views
Registered: ‎11-17-2015

Re: I2C Slave address Si570 on ZC702 board.

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Thank you htsvn and gnarahar. 

I guess it's 5D since the si570_programming.c works on my board and the address in the source code uses 5D. 

 

 

View solution in original post

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