Other NXP ProductsのトピックRe: Fast ethernet controller

Fast ethernet controller

gri — Thu, 14 Feb 2008 01:25:07 GMT

Hello,
I'm searching for a application note for the FEC, it should containt a schematic how to connect the cpu with ethernet connector and some sample code.

Regards

Re: Fast ethernet controller

RickN — Thu, 14 Feb 2008 09:53:43 GMT

Which MPU?

Re: Fast ethernet controller

gri — Thu, 14 Feb 2008 15:37:36 GMT

For the MPC5553. At the beginning a schematic is engough.

Regards

Re: Fast ethernet controller

RickN — Sat, 16 Feb 2008 08:44:10 GMT

See attached EVB schematics.

Cheers,

Rick

mpc5553evb_sch_e.pdf

Message Edited by t.dowe on 2009-10-20 01:05 PM

Re: Fast ethernet controller

gri — Thu, 06 Mar 2008 16:09:08 GMT

Thanks for the schematics. In the datasheet I've seen that the pins for the FEC are only available in the 416 pin BGA. This BGA is a bit to large, I want to use the 324 pin BGA or even the smaller 208 pin BGA. Is it possible to route the FEC pins to other GPIO pins using the crossbar?

Regards

Re: Fast ethernet controller

RickN — Mon, 10 Mar 2008 07:25:03 GMT

Hi,

Sorry, but you need to have the package with the FEC pinned out.

- Rick

Re: Fast ethernet controller

gri — Wed, 12 Mar 2008 16:59:01 GMT

Hello,
where is pin 7 of the DP83848, PWR_DWN, connected. I'm unable to search insinde the pdf.

Regards

Re: Fast ethernet controller

gri — Wed, 12 Mar 2008 17:39:43 GMT

The FEC shares pins with the data bus, is it possible to use the fec and the ebi for memory in the same time?

Re: Fast ethernet controller

laurentiu — Tue, 18 Mar 2008 22:26:41 GMT

Hi,

Regarding FEC module for MPC5553 I have some problems with DMA and FIFO Controller. After a write to TDAR a frame is transmitted correctly, but after I set up another transmit frame and write to TDAR no frame is transmitted. It seems that DMA and the RISC Controller doesn't read the following buffer descriptors. Do you have a hint for this?

Thanks

Re: Fast ethernet controller

laurentiu — Tue, 25 Mar 2008 02:32:43 GMT

I fount out the solution to the problem I had few days ago. A detailed explanation of this issue and a workaround for it can be found in Errata 2049 in the attached file.

MPC5553rev0E2.pdf

Message Edited by t.dowe on 2009-10-20 01:15 PM