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gomore11's ContentThere have been 28 items by gomore11 (Search limited from 17-April 23) #45958 Adafruit NFC shield
Hi all again.
Has someone tried to use I2C with Netduino 2??? I see that the pinset is a bit different know, and matches exactly with the nfc shield ones.............Has something changed in the I2C class in the framework?????? Wicth is the difference between Arduino and Netduino in the way of manage the I2C bus(the CS pin??). Thank you i´m still trying to to get this shield working on Netduino............ #46249 Adafruit NFC shield
Oh!! Sorry..........you are wright........I got confused with I2C and SPI becouse of the lots of tryes I´ve done. But my cuestion it´s obout the I2C and netduino 2..............finally I bought a logic analyzer (one from ikalogic especially designed to analize comunications) and I´m waiting to it to come. I´ll post the results of the tests to see if we can do something.......... #46480 Adafruit VC0706 TTL camera
Hello.
I´m trying to use this camera with the Netduino 2, I have comunication with it but I have a problem. I send the FBUF_CTRL command well and I have the wright answer,then I send the GET_FBUF_LEN command and I take a good answer too, with a data length around 12K(so thats wright I think). But the problem comes here. When I send the FBUF_READ command I receive the ack well but nothing about the data............what I am doing wrong........in the documentation says thta the data comes by SPI???? I don´t think so, becouse I saw that someone has done a library for this camera and it doesn´t use the SPI. The thing is that I want generate my own code, so if someone could help me I would be very glad. #46681 Adafruit VC0706 TTL camera
Yes, I saw it before, but I´m having the same issue although I am doing something very similar to what he does in his example............I don´t know what could be the problema..... #46744 Adafruit NFC shield
Hi Marcoe.
I just received the logic analyzer today, but I can´t try it for some days.............I will try to do it as soon as I can, otherwise it would be a great new if you earn to get the shield running with Stephan´s i2c driver. I haven´t try with it.............. #46748 Adafruit VC0706 TTL camera
Hi again, I have the code running (the one of the post you put before), but instead of saving it in a SD, I pass it to another COM port to send it to a PC. The cuestión is that with the hyperterminal I can see that the data is flowing to the FTDI chip that I´m using, but the data doesn´t seem to reach the PC...........wich could be the problem???? The baud rates are Wright, bowth of them, the camera and the second uart in 38400 and the serialport in the pc that has to receive data also 38400. #47072 Adafruit VC0706 TTL camera
Hello.
Finally I have it working.It was a delay problem but I have it solved. So now I have the camera running with my own library and data transfer with a second com port. The next estep is to try to do a face recognition with emgu in the pc. Thank you and i will post how it goes forward. #49090 Adafruit NFC shield
Ohh!! I´ve been some time without reading the forum and surprise!!!!!!
Thank you very mutch for your work 2Elemental!!!!! I couldn´t try with the logic analyzer but it´s the same that you used so I´m happy to see that it can be very usefull...........I have to try the code with the Netduino 2 with the last firmware and see what happens!! I´ll post the results. #49091 Adafruit NFC shield
Hi again.
I tried the code of 2Element in a Netduino 2 with the 4.2.2. firmware, but it gives me that the Netduino could not write to the PN532.........I´ll try to get the logic analyzer´s results and post them. #49096 Adafruit NFC shield
This is what I have with the logic analyzer:
Attached Thumbnails#49139 Adafruit NFC shield
Hi 2Elemental.
You are Wright!!! I try your code on a Netduino(1) and it Works!!!!! It has to be a Netduino 2 and Netduino plus 2 I2C issue. Maybe Chris Walker or any other menber could give some clue about witch could be the problem........ #49150 Adafruit NFC shield
Hi again.
Anyway, my real target when I started with this shield, was to be able to make a Peer to Peer connection betwen the Netduino+Nfc Shiel and a Windows Phone. As I wasn´t abble to comunícate the Netduino with the PN532, I worked with Arduino and a Windows Phone.
In this moment, I have code written to try a comunication between them but the Windows Phone doesn´t recognize the Arduino(now would be posible to do it with Netduino)+NFC shield device. In the other hand, the device does recognize the phone........
I think that the problem is that the initial connection link with a Windows Phone has to be done meeting the NFC Fórums LLCP protocol, but I´m not sure........I think that the Device recognize event in Windows pone is not launched until other device meets with the protocol......I´ve been asking in MSDN fórums but nobody answers this issue, and I can´t confirm it. Do you know something about it by chance???? #49159 Adafruit NFC shield
I have a Windows Phone 8 Device...................I´ll try to go on with this step by step, becouse it requires patience...... #49218 Adafruit NFC shield
Ok 2element!!!!
So, I see that there is more peopple interested in this 2Element, MarkNic............together I think we will have it working soon
I added some basic methods for configuring PN532 to make P2P comunications. I couldn´t test them yet, this is the first step.........after this comes the battle with the LLCP protocol............I´ll keep posting. #49284 Adafruit NFC shield
Hi 2Elemental.
I am cheking my adds to your code an d I have some problems............I only added some methods to PN532.cs and I´m testing the ConfigurePeerAsInitiator, and I have wrong answers..........I don´t konw witch could be the problem.....maybe a time problem??? I attach the code...... Attached Files
#49328 Adafruit NFC shield
Hi Andy!!
Don´t worry, there is no harry at all, only take a look when you can
About the ReadData call, I call it asking for 25 bytes......ReadData(25), that its the number of bytes expected in the response of the PN532 to an InJumpForDEP command, excluding the header and the checsum..........I was thinking that in your code this bytes are excluded to give only data in _readBuffer. I´ll check it...........
PD: As response to InJumpForDEP I have 25 bytes, the first has an 0x00 and the other 24 are 0x80. So I think that I have a response but I´m getting it wrong for a reason.............. #49375 Adafruit NFC shield
Hi Andy.
About WP8.........yes I know that it only supports NDEF thats why I mention in an previous post that we will have to take into acount the LLCP protocol. This protocol was designed by the NFC Forum, you can download the technical especifications here:
http://www.nfc-forum...cs/spec_license
The SamConfiguration you use is valid to data exchange also, I found out this Arduino code example that meets LLCP protocol to comunicate an Arduino+ PN532 Shield and an Android phone........maybe it could help us as a guide to earn to comunicate Netduino and a Windows Phone........... I attach it. Attached Files
#49460 Adafruit NFC shield
Hi.
I´ve been doing more tests with the code. And I have to say that debbuging step by step, the ConfigurePeerAsInitiator worked once!!! But only once......I´m not abble to make it work again, either debugging step by step.....I´ll continue trying things... #49486 Adafruit NFC shield
Ok, this goes on...........I found some issues to take into account for the code and tests.............I have the main commands working....InJumpForDEP to configure the target(the device you will link to the Netduino+PN532 shield, in this case the Windows Phone) as Initiator, and TgInitAsTarget to configure the target as target.
There are two details to retain........when you want to configure the phone as Initiator you can put the Netduino waiting to a device to come to field, and then it configures it(the command does it itself). But to configure the phone as target, that it is our case I think..........the things change a bit. In this case the phone has to be IN the field before you run the TgInitAsTarget command in the Netduino. So maybe before the call of TgInitAsTarget, is necesary to have the FindDevicesInField command running............I´ll keep on testing this kind of things and commands, and then I will start with the LLCP protocol.
Andy, don´t worry.......take a look when you can.However, my programming skills aren´t the best, so I think that it would be great if someone helps debugging my codes...........I´ll put them here when they run. #49488 Adafruit NFC shield
Here are the .cs files I´m using in this moment. The InJumpForDEP,FindDevicesInField andTgInitAsTarget running. This is the base to make the LLCP protocol run. I´m working on a class to construct the different parts of the protocol......but I don´t know if i would have so much time this days.........
Attached Files
#49661 Adafruit NFC shield
Hi!!
I´ve got good news..........My phone detects the Netduino!! They key was the SEL_RES parameter in the configure command. With a 0x60 instead of a 0x40, it recognize the device..............now I have to continue testing commands and parameters until earn a data exchange between them...... #49824 ayuda con netduino plus2
Hi Stefan, you are wrigth, but he wants to turn on a 220v bulb instead of relays, but he will have to use relays to manage the 220v AC, so your translation trhough Google Translate is wright!! #49834 Adafruit NFC shield
Ok, so I´m blocked again........I configure the device as target and when the phone arrives to it´s field, I have both recognized, The phone by the PN532 and the PN532 by the phone. The PN532 configuration has to be done as a ISO/IEC 14443-4 PICC passive target at 106 kbps to be recognized by the Lumia(I tryed with an Android and it runs also......). So, when you send the TgInitAsTarget command with it´s configuration parameters, you wait till a device enters to its field. In this moment the PN532 is configured and the command brings back the configuration data. Here, if I understand well the PN532 user manual.............in addition to configuration data, comes more data that could be propietary commands. My question would be if this propietary data are the possible LLCP PDUs that the device has to meet to have a data exchange with a Windows Phone(NDEF messages.............meet NFC Forum)?????????????
I have this data as response(the data excluding preambles,postambles,checksum,reponse and mode bytes.....):
E0 80 36 00 03 9F 3D 79 06 BE 62 AF 7C DD 00 00 00 32 46 66 6D 01 01 11 02 02 03 80 03 02 00 01 04 01 64 DA D2 6D 01 01 10 00 0E #50983 Adafruit NFC shield
Is someone else working on it????? I´ve been working in other issues for a time............Any kind of advancesss??????? #53237 FTDI FT800/EVE processor
I´ve seen trough the internet some people working with this component and Arduino, and I would like to know if someone is working on it with Netduino?? There is a Project at kickstarter to try to develop a shield with this chip and a LCD screen, propper to Arduino:
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Posted by
.I have a Nokia to test also, but I could test it in an HTC X8 also......
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