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ADV7610 slave address setting and readback

Question asked by lux on Mar 1, 2016
Latest reply on Mar 3, 2016 by mattp

Hi ,

I have a question about the ADV7610 slave address setting and reading back the set address.

I'm referring to UG-438, pp. 174-176.

When I wanted to set the CP MAP slave address through the main I2C port and read back it ,

my sequeunce was as follows, following  Figure 67 in UG-438.

Actually, it failed at the last portion.  NAK was returned when reading was tried.

I don't know why it didn't work.  Your advice woild be appreciated.

 

CP MAP slave address setting:

IO MAP(0x98) WR -> DATA (0xFD)(  IO MAP Reg. for CP MAP ADDR programming) => DATA(0x ccccccc-) (CP MAP SLAVE ADDR)

 

READABCK( --tried to fail at the RD in red.)

IO MAP(0x98) WR -> DATA (0xFD) => Repeated START=>  IO MAP(0x99) RD ( NAK)

 

Best Regards,

Lux

 

 

 

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