Wiznet W5500

josipratkaj · Joined: 06 Nov 2010 Posts: 5

Hi!

I'm wondering, is BASCOM going to support the new W5500 chip? Has anybody used it and can share code? It seems like a nice SPI "TCP coprocessor", easier to place on PCB (smaller) and a tiny bit cheaper than W5200.

Thanks,
Josip

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

if you send me the hardware i can add a lib for it. it is probably derived from w5200 so it should not be too much work.
i did not checked the datasheets. do you have a link to the PDF ?

josipratkaj · Joined: 06 Nov 2010 Posts: 5

you are probably right, the w5500 has to be similar to w5200.

the datasheet for the w5500 can be found at wiznet pages. links are below my post.

i would very much like to send you the hardware! is the WIZ550io module good enough for the job? can you give me a contact email address so we can arrange it?

links:
W550 datasheet: http://wizwiki.net/wiki/lib/exe/fetch.php?media=products:w5500:w5500_ds_v102e_131114.pdf
WIZ550io module: http://wizwiki.net/wiki/doku.php?id=products:wiz550io:allpages

br,
josip

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

I had a look. this is not really the same as w5200 and i do not see a real advantage of using this chip. the only advantage (IMO) is the SPI can transmit larger chucks. But it no problem to support it. Just bit more work.
I will send you an off line email for my address.

nicofer · Joined: 01 May 2013 Posts: 90 Location: GRJ

Hi
Any news on the support for this module / chip -

Lots of modules will be used in the WIZnet Connect the Magic 2014 Design Challenge

Best Regards

Nico

georgestheking · Joined: 06 May 2005 Posts: 134

Hi,

It will be nice to participate of the contest using Bascom AVR.

Best regards

Georges

josipratkaj · Joined: 06 Nov 2010 Posts: 5

bump!

any news on the topic?

regards,
josip

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

sorry, i had it scheduled but i ran out of time. After that it was out of sight. But after reading this, i quickly collected the board and documents and i used yesterday to read the datasheet again and make a plan.
This is a great chip and has some simplifications. because you can use VDM you can get higher speed too. But while i originally thought it were some relatively simple modifications, it is a bit harder.
in all libs the socket is passed in the address. But that is not possible now because a kind of 24 bit is used instead of 16 and i had no free register.
I do not know if users want the 5500 just for higher speed or for other reasons.
A quick solution would make no advantage of VDM and would store the socket in SRAM. Maybe that is best to get started. A more optimized rewritten version could be added later.
I keep you updated.

josipratkaj · Joined: 06 Nov 2010 Posts: 5

Hi!

thanks for the reply. personally, I find the chip easier from the HW perspective. SPI is the interface I prefer, the chip is smaller and easier to implement on the board etc. those are the main (probably the only) reasons I'm asking.

regards,
josip

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

i was fighting with this module. have connected it to the stk600.
but for some reason one gnd and vcc wire was not enough. just after i had checked wires for the third time, i decided to add another vcc and gnd, and then i could read the registers.
but writing registers does not work proper yet. So i might better add external power.
Too bad they included this eeprom and pic on the module that loads default values. i would have liked some jumper to turn that off.
ok, back to the wiring...

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

ahem, just one wire connector did not made good contact. now i can write and ping. Next time i begin to check all connector pins.

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

ok, now the tcpsend and all simpler routines work. What remains is the receiving code. I expect it to be ready for test end of this weekend.
Josip : when you send an email to support i will give you access to a test version when i am done.

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

and finally reading is working as well.

josipratkaj · Joined: 06 Nov 2010 Posts: 5

you've been busy as a bee Smile

i'm happy that you got things running. usually when i have such an error (poor contact - sometimes works, sometimes doesn't), firstly i make changes to the code for a few days Smile

then i check the board.. i'll never learn Smile

keep up the good work!

br,
josip

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

yes, i am busy. but as had planned to support this module it was about time i finished it. too bad wiznet altered the protocol, i should have rewritten the complete lib. And when there is enough interest for this module, maybe i will.