[Ask] How to read data from GPIO Wizfi 220 EVB

Wi-Fi Module WizFi210/220
1

Dear wiznet forum members,

I have problem regarding read data from GPIO Wizfi 220, My finals goal just want to sent data from Chipcap-D/Module Sensor [url]http://www.icbanq.com/shop/product_detail.asp?prod_code=P000820080[/url] to Wizfi 220 EVB device. From chipcap-D sensor datasheet [url]http://data.icbank.com/ICBShop/board/CHIPCAP-D%20module%20설명자료1.pdf[/url] to get data I need to do simple calculation. So my question, what kind of microcontroller or microprocessor are using in wizfi 220? How to put or load c code into Wizfi 220 EVB? What kind of program or software that I can used to load my code to Wizfi? or Is it possible to received and calculate data digital from sensor in at-command mode?

Thank you,
Regards,

Danil

2

Hi

what kind of microcontroller or microprocessor are using in wizfi 220?
How to put or load c code into Wizfi 220 EVB? What kind of program or software that I can used to load my code to Wizfi?

[quote]WizFi210 used ARM7 core. But you can’t program to it. You have to use serial or SPI interface in order to control WizFi210.
[/quote]

But WizFi210 can control GPIO(GPIO19,GPIO20) pin through AT+DGPIO of AT Command.
For example, If you enter AT+DGPIO=19,0, WizFi210 will be changed to LOW to GPIO 19.
For more information, Refer to WizFi210 Programers Guide.

3

[quote]But WizFi210 can control GPIO(GPIO19,GPIO20) pin through AT+DGPIO of AT Command.
For example, If you enter AT+DGPIO=19,0, WizFi210 will be changed to LOW to GPIO 19.
For more information, Refer to WizFi210 Programers Guide.[/quote]

Do you mean that I’m only can control “ON” or “OFF” condition in GPIO?

In other, I found in Pin Map description Wizfi 220 have ADC1 (12) and ADC2 (13), Are there any idea how to access this port?

I have experience using AVR Atmega 128, so I just assumpt we can program Wizfi 220 port like what I did in AVR.

thank you,

Regards,
Danil

4

Hi

Do you mean that I’m only can control “ON” or “OFF” condition in GPIO?

  • Yes, WizFi210 can control “ON” or “OFF” condition in only GPIO19 and GPIO20.

In other, I found in Pin Map description Wizfi 220 have ADC1 (12) and ADC2 (13), Are there any idea how to access this port?

  • You can’t use ADC1, ADC2 pin. It is only control when WizFi210 did be customized.
5

Thank you for your explanation kaizen,

but now I have another question, because I can’t modified the wizfi 220 code as your describe before I try to connect the wizfi 220 with ATmega 128 microcontroller (uC) using UART serial port (Tx and Rx), but I have some problem I could know my data is sent or not from uC to wizfi? Do you have any suggestion or document so that I refer to solve this kind of problem?

thank you,

Regards,
Danil

6

Hi

If WizFi220 received serial data successfully, WizFi220 will return same data. Because WizFi220 is set echo mode.
So you can check using this echo data.

And If WizFi220 received serial command successfully such as AT, WizFi220 will return [OK] message.

Thanks

7

[quote]If WizFi220 received serial data successfully, WizFi220 will return same data. Because WizFi220 is set echo mode.
So you can check using this echo data.

And If WizFi220 received serial command successfully such as AT, WizFi220 will return [OK] message.[/quote]

hi Kaizen,

Now I try to send [AT] command using docklight [url]http://www.docklight.de/[/url] but the reply message is also [AT] not [OK] like your explain before, I think there are some problem here.

This the result I did [url]http://imgur.com/WYvOZxx[/url]

by the way,What name of program do you using for sent data serial in command mode to wizfi 220 ?

thank you,

Regards,
Danil

8

Hi

For using AT command, you have to issue 0x0d 0x0a(Hex Data).
If you add 0x0d 0x0a to end of command, you can see [OK] response.

Thanks

9

Now using hyperterminal AT command working well, but I have another problem regarding save the profile I have made. first I already setting static IP in wizfi using Wizsmartscript 192.168.0.111, but everytime I turn off the wizfi 220 and turn on again the IP address change again to 0.0.0.0.

Do you have any idea about how to save and keep the ip of wizfi always static even I turn of and turn on again the device?

thank you,

Regards,
Danil

10

Hi

If you want to remain profile after WizFi220 reboot, You have to use AT&W command.

This is example about AT&W command.

For more detail information about AT command, Refer to this document.
http://wiznet.co.kr/Admin_Root/UpLoad_Files/BoardFiles/WizFi210_PG_V130E.pdf

Thanks