Hi,
I'm working with the WM8804 in a new prototype. I2C control of the WM8805 worked quite well in the previous version but now I really struggle with the WM8804.
Does anybody have experience with headaches or success with this chip?
Generally speaking, I have working I2C in that I can read out the status registers at 0x00-0x02 and get the expected hardcoded values. I can also write different settings to 0x1E and turn the oscillator on and off.
That's about it. When I apply what I believe is a valid SPDIF signal to the input pin, there is no response from the WM8804. Not a single status register (0x0b through 0x11) read back as anything else than 0.
I'll post a lot more detail about my setup and register accesses. Before that I just wanted to check for history of WM8804 hickups here at the forum.
Thanks,
Børge
I'm working with the WM8804 in a new prototype. I2C control of the WM8805 worked quite well in the previous version but now I really struggle with the WM8804.
Does anybody have experience with headaches or success with this chip?
Generally speaking, I have working I2C in that I can read out the status registers at 0x00-0x02 and get the expected hardcoded values. I can also write different settings to 0x1E and turn the oscillator on and off.
That's about it. When I apply what I believe is a valid SPDIF signal to the input pin, there is no response from the WM8804. Not a single status register (0x0b through 0x11) read back as anything else than 0.
I'll post a lot more detail about my setup and register accesses. Before that I just wanted to check for history of WM8804 hickups here at the forum.
Thanks,
Børge