I think, Config TCP is not confortable with W5500

katipefendi · Joined: 24 Oct 2013 Posts: 30

Hi all,

i try to use the code from Atilio Mosca [url] https://www.mcselec.com/index2.php?option=com_forum&Itemid=59&page=viewtopic&t=13767&highlight=dhcp [/url]
it is works but only till SETTCP.
After then i have to disconnect and connect the Wire to Cs = PORTB.4. then it works.

Has anybody an idea, why this it is so?

My Config see below:

plouf · Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece

whats the reason of Cs = Portb.4 ? as i see you use a single hardware SPI
try removing it from config

katipefendi · Joined: 24 Oct 2013 Posts: 30

Not works

plouf · Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece

dont understand !
now it works or not ?

C(hip)S(elect) reason is if you have more that 1 conected

katipefendi · Joined: 24 Oct 2013 Posts: 30

Hi,

without Cs = PORT.4 from Config is not work. I have frequently Hard Reset

The Cs have to be in Config, i have this from BASCOM Help.

The Function from Atilio Mosca [url] https://www.mcselec.com/index2.php?option=com_forum&Itemid=59&page=viewtopic&t=13767&highlight=dhcp [/url]
Get the DHCP OK if SETTCP it if was set.

But it will not set until I disconnect and reconnect the Cs wire once.

I think tihs is an Error in BASCOM.

plouf · Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece

i have try here DHCP for 5100 works, then recompile for 5500 and replace chip.... not working

ALSO i have hard time getting my project with 5500 working back .. seems that W5500 lib have some glitches for sure Smile

(i did some test with 5500 since you asked these to check out)

EDC · Joined: 26 Mar 2014 Posts: 971

Im using W5500 without any problems. Look on the attached pics. One is original (bought in Poland ~20$), second is from China 4,7$
They both work...same Very Happy

Because my Bascom programmed devices have settings for ETH stored in the eeprom Im using this following steps:

1.First of all Im configuring pin SS of hardware SPI as output and set it HIGH(mandatory to be output, set HI is because Im using this pin for CS).
2.Configure Hardware SPI as Master with NOSS = 1 (it means "no ss")
3.Then I configure Wizz with my chosen CS pin. Pin can be same as original SS pin or any other. If another pin is used then I configure it as Output first and set it High.
-Important (for me)-step is that I configure WIzz with parameter Noinit
This is decribed in the Help. So I must complete/can change configuring by Settcp later.

With this order everything works fine for me. I can change settings almost in the fly by sending AT commands.
I also store once sent settings in the eeprom so next boot is quicker.

So ->NOSS=1 ->Noinit parameter ..and when you have alias for the Wizz CS pin then you can use it anytime you want.

katipefendi · Joined: 24 Oct 2013 Posts: 30

Yes, TCP is not Problem, the Problem is, if you use the UDP

EDC · Joined: 26 Mar 2014 Posts: 971

Okay. I will test it tommorow. Im curious Very Happy

katipefendi · Joined: 24 Oct 2013 Posts: 30

If i use UDP, then I measure the following first picture on the PIN Cs

and

if i use TCP, then I measure the following second picture on the PIN Cs

six1 · Joined: 27 Feb 2009 Posts: 553

@Mark
can you confirm, that DHCP Sample isn't working on WIZ5500 ?

best, Michael

albertsm · Joined: 09 Apr 2004 Posts: 5916 Location: Holland

no, i did not test it on all supported wiz chips. So i can not confirm if it works or not.
it should work but since wiznet makes each new chip totally different, it would not surprise me if there is some difference.
A csw_reset (soft chip reset) is executed, it should be sufficient.

six1 · Joined: 27 Feb 2009 Posts: 553

thank you Mark!

@katipefendi
check hint from Mark! (csw_reset)

albertsm · Joined: 09 Apr 2004 Posts: 5916 Location: Holland

I connected the w5500 and while the provided samples work, indeed the Settcp hangs the chip.

After checking it seems that the w5500 register does not reset properly.
According the datasheet : If this bit is ‘1’, All internal registers will be initialized. It will be
automatically cleared as ‘0’ after S/W reset.

So at init and re init the bit is set, then there is a check to see if the bit clears. With a hard reset this seems to work, while with a soft reset, it doesnt.
To fix it, you can remark these lines in the tcpip-w5500.LBX file (open with nodepad)
Search the label _Re_init_tcpip_lp: and remark the lines as shown :

_Re_init_tcpip_lp:
; rcall _read_TCPSPIX
;.OBJ FCD7
; rjmp _Re_init_tcpip_lp

then save.

six1 · Joined: 27 Feb 2009 Posts: 553

Thanks a lot Mark!