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NXPTM LPC2XXX and LPC17XX / Re: Ethernet Problem in LPC1768
« on: August 09, 2010, 12:53:38 PM »
hi.
i have a lots of advice for this. same uController with KSZ8041RLNI.
i think your problem is related to Phy!. not MAC.
be sure;
* The returned Reference Clock is ok?! this is a reference for MAC module.
* MCFG is the most important settings for LPCs MAC Module. The communication port running <2,5Mhz for many Phy. so you should check your AHB CLock Rate and Ratio.! (i use /44 ratio @100Mhz Cclk)
* PHY Addr is important for reading and writing operation. it can be very dangerous.
* VDDPLL's voltage is ok?
* and if you cannot debug this. you trash your Callback functions. and you should use, direct LPC definitions for configuration.
i have a lots of advice for this. same uController with KSZ8041RLNI.
i think your problem is related to Phy!. not MAC.
be sure;
* The returned Reference Clock is ok?! this is a reference for MAC module.
* MCFG is the most important settings for LPCs MAC Module. The communication port running <2,5Mhz for many Phy. so you should check your AHB CLock Rate and Ratio.! (i use /44 ratio @100Mhz Cclk)
* PHY Addr is important for reading and writing operation. it can be very dangerous.
* VDDPLL's voltage is ok?
* and if you cannot debug this. you trash your Callback functions. and you should use, direct LPC definitions for configuration.