Powerquic II (MPC8270) and RMII Ethernet PHY (Am79C875)
VxWorks: 5.5 using modified version of motFcc2End.c
We are experiencing problems when switching ethernet cables at
different speeds, specifically changing from a 100MBit cable to a
The interrupt from the PHY is always happening and the FCC is being
reconfigured for 10BaseT in the GFEMRx[CLK] bit.
However, the FCC no longer receives Ethernet packets addressed to it's
MAC address, although it continues to receive broadcast packets without
This situation is cleared when the FCC transmits a packet.
Switching from a 10MBit cable to a 100MBit cable always works!!!!
Anyone out there had a similar problem and know a suitable fix???
Re: Powerquic II (MPC8270) and RMII Ethernet PHY (Am79C875)
I had ever met a bug for PHY in motFccEnd.c(for vxworks5.4),I solve it
by modifying code about PHY(mask a judgment for PHY register,
certainly,MUST be do it according to your hardware). I guess that
MotFcc2End.c do have similar bug,but I have no experience to the new
edition ethernet driver.