Ethernet driver (Bare-Metal Application)

Hi,

I'm starting to work with the Zedboard and I'm very lost. I want to establish an Ethernet connection between the board and a PC, running in the Zedboard a bare-metal application.

I've tried to make work the example of the Xilinx driver emacps (which don't seems very simple to me...), but I don't see any result. I'm running the example on the Zedboard and Wireshark in the PC. As long as I know, I should receive some frames from the board, but I don't see anything (after power up the board I see a lot of frames, but they aren't sent from mi application).

Maybe I'm wrong about what the example shoud do. I just want to learn the simplest way to send and receive frames and see it works...

Any help?

Thank you (and sorry for my English...).

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Former Member over 10 years ago +1

Hey sysseon, you missunderstood the example. The example does not send anything to the PC, it makes a selftest useing the loopback function of the PHY. I got Ethernet to work with PC, so if someone needs…

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0 Former Member over 10 years ago

Hey sysseon,
you missunderstood the example. The example does not send anything to the PC, it makes a selftest useing the loopback function of the PHY.
I got Ethernet to work with PC, so if someone needs an example, just send me a personal message (like that I get an email notification)
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0 Former Member over 10 years ago

Hey sysseon,
you missunderstood the example. The example does not send anything to the PC, it makes a selftest useing the loopback function of the PHY.
I got Ethernet to work with PC, so if someone needs an example, just send me a personal message (like that I get an email notification)
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0 Former Member over 10 years ago in reply to Former Member

Yaro,

I would very much like to see that example. I have a custom design running on the Pl side of Zedboard. I would like to send LTE baseband data from the Host via Ethernet. This example will help with that past of the code.

Thanks

JT
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0 Former Member over 10 years ago in reply to Former Member

Hello JT,

you can download the design here:
https://dl.dropboxusercontent.com/u/"replace with no bot number"/ethernet.7z

No bot number is 15987625

I use Zedboard revision C, but it should work with d, too.

The program sends a frame (from PS) over gigabit Ethernet and then waits for one. As soon as it receives a frame, it is printed on the standard output.
You can test it by receiving the frame with wiresharc. I have written a test program to send something to the Zedboard, so if you need that, I can give that to you, too.

The main difference to the example project is that the Phy is no longer in loopback mode.
Makeing the region of the BD-list uncacheable is verry important. If you do not know how that is done, read this:
http://www.silica.com/fileadmin/02_Products/Productdetails/Xilinx/Zynq_MMU_caches_control_ver1.0.pdf

The program is not well documented, so if you do not understand something, feel free to ask.
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0 Former Member over 10 years ago in reply to Former Member

Hi,

thank you for sharing the project with us. If you could also share the program to send something to the zedboard with us this would be perfect!
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0 Former Member over 10 years ago in reply to Former Member

Hello yaro123,

thank you for sharing your project with us. It would be perfect if you could also share the test program for sending data to the Zedboard too.
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0 Former Member over 10 years ago in reply to Former Member

Hello Harsesis,

I do not have a small workong programm that sends just one message at the moment.
But my test program was basically taken from here:
http://www.winpcap.org/docs/docs_412/html/group__wpcap__tut8.html

If you want to use raw Ethernet with Windows, just install winpcap and read the tutorial (it's not difficult).
For debugging reasons I also recommend you to use wireshark https://www.wireshark.org/
It's a nice and verry easy to use tool for network debugging (by the way, it uses winpcap, too)
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0 Former Member over 10 years ago in reply to Former Member

Hi yaro123,

thank you for the hints, I already used wireshark for debugging, but I had problems generating the correct packages. I will try again with the sources you gave me. Thank you!
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0 Former Member over 10 years ago in reply to Former Member

For setting up the header you can use this function:

[code]
#define MAC_ADDR_SIZE 6

void setFrameHeader(uint8_t *frame, uint8_t *sourceAddr, uint8_t *destAddr, uint16_t etherType)
{
tint i;

t/* Destination address */
tfor (i = 0; i < MAC_ADDR_SIZE; i++) {
tt*frame++ = *destAddr++;
t}

t/* Source address */
tfor (i = 0; i < MAC_ADDR_SIZE; i++) {
tt*frame++ = *sourceAddr++;
t}

t*frame++ = (etherType & 0xff00) >> 8;
t*frame++ = etherType & 0x00ff;
}

[code]
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0 Former Member over 10 years ago in reply to Former Member

hey can u please give me that example my email id is there below..
it would be of great help to me

shivendraj8@gmail.com
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0 Former Member over 9 years ago in reply to Former Member

Dear Yaroslav,

I would appreciate it if you send me your Zedboard ethernet project as I cant access dropbox where I am

cheerful_dirge@hotmail.com

Thanks Maged
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0 Former Member over 9 years ago in reply to Former Member

Hey yaro,

You said you got ethernet to work with your pc.
Will you please be kind to share it with me.

Regards,
Manthan
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