Dear Mr. Li-Ta Lo,
I've tried, but id didn't see any bytes on serial port 0 of theCS5535. What is the hardware description of rumba target ? I'm trying it on the AMD RDK THINCLIENT based on GEODE GX2.
I think our board is the thinclient RDK with the winbond superio duaght board. Did you get the lastest code? Does it compile?
My Daught board (LPC Expansion) uses the NSC PC87364, the wich is the same WINBOND 87364. I compile successfull the last code, but i was not able to see anything on serial port 0 of CS5535. But something is clear for me now: if you don't have VSA initialized, you aren't able for using serial port of companion chip. As a matter of fact, you are probably sending the bytes to port 0 of winbond super i/o, isn' t ? Are you really sending the debug output for port 0 of WINBOND 87364 ?
Yes, I am sending to the serial port on the superio chip, not the internal UART of GX/CS5535.
Ollie