I have the following

- 400xm-bt

- Wifistix

- Breakout board

- AD7998 (8-channel 12-bit ADC with i2c interface)

 

I have compiled the i2c example from the web site and I can read all of the registry’s in the AD7998.

e.g.

[root@gumstix ~]# ./i2c 0x22 rb 0x0

0x717f

 

But for some reason I can not write.

 

Has any one had this problem?

 

Thanks

 

Tim