schematic for WIZ107SR-TTL

Question

I’m having the WIZ107SR-RS232 here, but I would like to use it as TTL instead of the RS-232. Referring to the schematic wiz107sr_rev1_4.pdf for WIZ107SR, is the following step correct to make it as TTL version: remove the R21, R22, R23, R24 remove the U2 add the R38, R39, R40, R41

Edward · Answer

Hi. kslam1980 Yes exactly. Thank you.

Edward · Answer

Hi KS Lam WIZ107SR is not mounted EEPROM. And WIZ107SR has two memories that code flash and data flash. code flash has the application operation and data flash has configuration tool (network and serial setting value). I recommend you that not mount EEPROM. Thank you

kslam1980 · Answer

Hi Edward, Currently, we are thinking to integrate the W7100A into our custom board. Is the W7100A chip pre-programmed with the correct firmware? How can we upload the new firmware into the W7100A? Is it we need to tie the BOOTEN pin to VDD to upload new firmware? Can you provide me the BOM list of the WIZ107SR for reference purpose? Thanks & Regards, KS Lam

Edward · Answer

Hi. KS Lam kslam1980: Is the W7100A chip pre-programmed with the correct firmware? The firmware file of the W7100A chip pre-programmed same as WIZ107SR firmware. So I refer to WIZ107SR firmware file.WIZ107SRv4_06p.zip (22.6 KB) kslam1980: How can we upload the new firmware into the W7100A? Is it we need to tie the BOOTEN pin to VDD to upload new firmware? W7100A firmware upload uses WizISP tool. First, it set to high with BOOTEN pin(VCC). And active reset (low) and then access WizISP tool. WizISP tool user’s guide is inside zip files. refer to inside guide. refer to below link. http://old.wiznet.co.kr/sub_modules/kr/resources/Download_View.asp?PK_Num=458&page=11&SF_Part=&SF_KeyWord= And refer to BOM pdf file. WIZ107SR Rev1.4 Partlist_TTL.pdf (72.0 KB) Thank you. Best regards, Edward

kslam1980 · Answer

Do you have the source code for the WIZ107SRv4_06p.zip? What is the default configuration (baudrate, parity, stop bit etc) of UART for the pre-programmed W7100A chip?

Edward · Answer

Hi. If you want WIZ107SR source code, and you must contact to us to NON-DISCLOSURE AGREEMENT. So, Please contact to our US office. And, W7100A default serial setting is refer to below list. baudrate: 57600 bps Data bit: 8 bit Parity: none Stop bit: 1 5.Flow Control: none Thank you.

Edward · Answer

US office contact point is refer to below link. http://www.wiznet.io/about/contact-us/ Thank you.

Edward · Answer

Hi. It can update MAC address to using terminal tool. You just send this serial message “MC00:08:DC:xx:xx:xx$0d$0a”. xx blank is insert your mac address. Thank you

kslam1980 · Answer

In my design, i’m using two sets of W7100A to work as the serial to ethernet converter, base on the WIZ107SR reference design. I’m able to establish the connection to each of this individual sets of W7100A to PC through the RJ-45 port. However, when i perform a back-to-back connection from one RJ-45 port on my design to the other RJ-45 port on my design, the Green LED light on the RJ-45 doesn’t light up. It seems the back-to-back connection is not linked. What could be the possible problem in this case?

kslam1980 · Answer

Hi Edward, Yes, each W7100A can be searched through the configuration tool. What kind of connection diagram you are referring here? Thanks & Regards, KS Lam

Edward · Answer

Hi KS Lam How connected to each W7100A board? I think, if you can be searched on configuration tool, your connection is wrong. So, how connect to each w7100A? Thank you

kslam1980 · Answer

Hi Edward, Here is the connection diagram on how i connect both W7100A together. Thanks & Regards, KS Lam IMG_20180530_1549261180×592 144 KB

kslam1980 · Answer

Hi Edward, Actually i did a similar setup using the WIZ107SR module, and i was able to establish the link without going through the hub as following. (WIZ107SR) – (LAN cable) – (WIZ107SR) So, i wonder why it doesn’t work in this case with our custom board setup. I did the loop back test for each individual W7100A, and it is working. Thanks & Regards, KS Lam

Edward · Answer

I will update u once thHi KS Lam. When you connect to each w7100A directly, ACT/LINK LED is blink? I don’t know why it doesn’t working… So, We need to many the other ways… If you fine, connect with HUB. And Can you confirmed circuit from us? Thank you p.s I recommaend that use direct lan cable.

kslam1980 · Answer

Hi Edward, When i connect the (W7100A) - (LAN cable) - (W7100A) directly, the LINK LED doesn’t light-up/blink. I have tried with both the direct and cross LAN cable, and it doesn’t work for both cases. In our application, we will need it to be able to connect directly without going through the hub. Yes, the circuit is based on the reference circuit of WIZ107SR (rev1.4). Thanks & Regards, KS Lam

Edward · Answer

Hi KS Lam. I think, It doesn’t light-up/blink to ACT or LINK LED, You must use hub… So, please consider to use hub. and please test with HUB. Thank you

kslam1980 · Answer

Hi Edward, If it is the limitation of the chip that need to go through a hub, but how can we explain that we can actually setup the link with (WIZ107SR) - (LAN cable) - (WIZ107SR) setup? Thanks & Regards, KS Lam

Edward · Answer

Hi KS Lam. The fact is your board didn’t link up. So I gave to the other solution. I don’t know what is problem, Again send to me your schematic files? Thanks.

kslam1980 · Answer

Hi Edward, Please refer to the following for the schematic… page11196×807 79.2 KB page21175×801 77.8 KB Thanks & Regards, KS Lam

Edward · Answer

Hi. Please give me schematic PDF file. And give me gerber files each W7100A board. Thanks

kslam1980 · Answer

Hi Edward, Can you provide me your email address which i can send the file to you directly? As our company policy not allow us to reveal the schematic & gerber in open forum. Thanks & Regards, KS Lam

kslam1980 · Answer

Hi Edward, Have emailed you the schematic & gerber. Besides, do you have the IBIS model for W7100A chip and RB1-125BAG1A (RJ-45 connector)? Thanks & Regards, KS Lam

Edward · Answer

Hi. KS Lam. We only have datasheet and WIZ107/108SR Circuit. Did you already have WIZ107SR schematic? Thanks

kslam1980 · Answer

Hi Edward, Yes, I already have the schematic for WIZ107SR module. Any finding on the schematic and Gerber that I have sent to you earlier? Thanks & Regards, KS Lam

Edward · Answer

Hi. KS Lam. I looked at your schematic. And your circuit has wrong termination resistor. It is 49.9R ohm, not 49.9K. This part modify and test again. Thanks

Edward · Answer

Hi KS Lam And refer to below link. (Design Guide) please refer to Parts Placement section in design guide https://wizwiki.net/wiki/doku.php?id=design_guide:hardware:start You didn’t erase inner 1, 2 layer Copper GND. You must erase Copper GND to below RJ45 area. And Do not place parts to below RJ45. Thanks

Edward · Answer

I sent your e-mail. please check your e-mail. Thanks

kslam1980 · Answer

Hi Edward, Thanks for the gerber… Thanks & Regards, KS Lam