33 replies to this topic

[TriangleIL]

Hi,

trying to use the code with a regular Netduino. Getting "Failed to init SPI<->UART chip". Remember I had the WiFly bricked or mis-configured a few months ago. Is there a way to totally reset the WiFly or the chip, programmatically?

Cheers,
tamberg

I am having this exact problem. I have tried changing the baud rate, but no luck. The only changes I made were,

if (m_deviceType == DeviceType.crystal_12_288_MHz)
                    // value = (12.288*1024*1024) / (baudrate*16)
                    WriteRegister(WiflyRegister.DLL, 83);       // 4800=167, 9600=83, 19200=42, 38400=21
                else
                    // value = (14*1024*1024) / (baudrate*16)
                    WriteRegister(WiflyRegister.DLL, 96);     // 4800=191, 9600=96, 19200=48, 38400=24

and

webServer = new HttpWiflyImpl(processResponse, 80, HttpWiflyImpl.DeviceType.crystal_14_MHz, SPI.SPI_module.SPI1, Pins.GPIO_PIN_D10);

to call into the implementation.

Do I need to change this line?

WriteRegister(WiflyRegister.LCR, 0x80); // 0x80 to program baudrate

Thanks!

[TriangleIL]

So not sure how to troubleshoot this, but it looks like all calls to ReadRegister() return back 0xFF. It doesn't matter which register I am reading against either. Anyone have some insight or thoughts on how I can troubleshoot this issue? Thanks, Jason ETA: More information. The green light blinks approximately every 1.5 seconds. The yellow light every .5 seconds. This happens for a set of 5 green blinks and 15 yellow blinks, then resets. Is it possible my WiFly is messed up?

[jdsmith]

I am having this exact problem. I have tried changing the baud rate, but no luck. The only changes I made were,


Thanks!

I experienced the SPI UART error when my WiFly board wasn't getting power, but it sounds like you're getting power to the board.

You don't need to change the LCR line...that's just telling the board which register you want to adjust. You do change the baud rate in two places: the hex value in the

WriteRegister(WiflyRegister.DLL, 96);

line and the "SendCommand" value in the Open function.

[James]

Thanks to the huge amounts of help from JP and others I finally have this code working! The culprit for me was flow control. What I noticed is that after a hardware reset of the WiFly shield it would send back proper responses ("AOK" and others) to the Netduino. After running the config code to turn on flow control it would stop sending those responses. Now I have the WiFly running at 19200 baud, talking to the Netduino without issue and it serves up the "/time" page correctly. Is it bad to have the flow control turned off? Any ideas why that might cause an issue? The symptoms I see are exactly those described in the WiFly docs: NOTE: once flow control is enabled, it is important to properly Drive the CTS pin (active LOW enabled) If CTS is HIGH, data will NOT be sent out the UART, and further configuration in command mode will be problematic as no response will be received. Maybe I'm not working with the CTS pin properly? I'm not even sure which pin that would be. Thanks for this code JP, glad to finally start work on my mobile robot in earnest

[James]

Has anyone had luck setting the dns name for WiFly? I issued the command "set dns name wifly" and then expected to be able to ping the device using the name wifly instead of the IP, but that didn't seem to work.

[MattyZee]

Does this Library support WPA2-PSK security? The Datasheet for the WiFly module says it supports WPA2-PSK. Is this something that the Module handles or is it something that needs to be incorporated in the Library?

[James]

Does this Library support WPA2-PSK security?
The Datasheet for the WiFly module says it supports WPA2-PSK. Is this something that the Module handles or is it something that needs to be incorporated in the Library?

I've had success with WPA2/PSK using a WRT54G and Tomato.

[MattyZee]

Great. Thanks for the reply. Now to order my WiFly :-)

[two schnauzers]

Has anyone verified if the drivers will work with LinkSprite CuHead WiFi Shield for Arduino http://www.cutedigi....6d911aa02c5caa0 Is is only $55 (cheaper than the other WiFi shields). I plan on using it with a regular NetDuino (not Plus). Thanks!

[Quiche31]

Has anyone verified if the drivers will work with LinkSprite CuHead WiFi Shield for Arduino http://www.cutedigi....6d911aa02c5caa0

Is is only $55 (cheaper than the other WiFi shields). I plan on using it with a regular NetDuino (not Plus).

Thanks!

It will not work with this shield, that uses a different chip. You will have to find an appropriate driver for it.

[Stefan]

Lovely project! Makes me want to buy a wifi shield

[Stefan]

Okay, I did

When I have bool wifly = false; your code works superb on my Netduino, but when using the wifly shield, it doesn't. It gives an error in HttpLibrary\HttpWiflyImpl.cs on this line:

m_uart.Write(new byte[] { (byte)reg, b });

What I am missing is settings to actually join the wireless network. How should that be defined?
I am probably missing something obvious

[pxl357]

Okay, I did

When I have bool wifly = false; your code works superb on my Netduino, but when using the wifly shield, it doesn't. It gives an error in HttpLibrary\HttpWiflyImpl.cs on this line:

m_uart.Write(new byte[] { (byte)reg, b });

What I am missing is settings to actually join the wireless network. How should that be defined?
I am probably missing something obvious

Hey stefan did you figure ? I have the same issue

[pxl357]

Hey stefan did you figure ? I have the same issue

If i used the Open(ssid,passphrase) it's fix the pb , at least the error dont appear anymore.
But the ip of the netduino stay at 0.0.0.0 i try to setup it manually but it throw an error.