AsyncLabs Forums

[waltermixxx]

I know that 13, 12, 11, 10 and 9 are used

SPI for 13,12,11 and 10.

Pin 9 is used for led for connection status.

here is where I get confused on the schematic: normally interrupt is pin 8 or 2 both indicate
as being used. both appear to be connected to the wireless module.

is there a jumper I have missed? which pin is being used?

I am having trouble deciding between the version 2. wifi shield or the Yellow jacket

very tempted to go yellow jacket, as it would be dedicated. Can someone please clarify the
pin usage for me?

Also I was going to add a 16mbit chip to the yellow jacket as a plug in board on the header pins
for some web page storage...(following the v 2.0 wifi shield as an example) or is a yellow Jacket 2.0
being released soon?

cheers and thanks ahead of time.

[GregEigsti]

Yeah the interrupt pin usage (2 or 8) is jumpered so that you are using one or the other. Allows a little more flexibility.

[waltermixxx]

groovy, so the yellow jacket i can select pin 2 for the interrupt which will leave me free to use pin 8 for something else...

thank you for clarifying that....

i just purchased the wifi shield 2.0 from Robotshop.ca (I'm in canada)
so I will mess around with that, then when I get the bits for my project sorted out,
i may puchase a yellow jacket for the final product...

cannot wait for it to arrive....

cheers and thanks again.

[GregEigsti]

Let me take a look at my YJ later on this evening; the schematic makes it look like pins 2 and 8 are selectable but I don't see a switch on the board I know on the other products you can switch between interrupts but am not seeing a jumper/switch.

Greg

[benquark]

The interrupt pin on the WiFi module is connected to digital pin 2. It is not switchable on the YellowJacket. We wanted to give the YellowJacket a low profile and had to remove the jumper.

[pyrhho]

So, to clarify, on the yellowjacket pin 8 is always the interrupt, but pin 2 is available for usage?

[GregEigsti]

pyrho, that appears to be the case. Check out the YJ schematic on the wiki - digital pin 8 is "connected" to the Atmel processor and pin 2 (or its trace) is not connected to anything.

Do you have a YJ? Would be pretty easy to figure out

Greg

[pyrhho]

After testing it on my YJ, it does appear that pin 8 is the interrupt and pin 2 is available. I tested with spi.h set to USE_DIG0_INTR (not sure if that makes a difference). sorry for bringing this topic back!

[benquark]

To clarify the confusion about pin usage on the YJ. Pins used on the YellowJacket: 13, 12, 11, 10, 9, 8 and 2

SPI: 13, 12, 11, 10
Connection status LED: 9
WiFi chip enable: 8
WiFi interrupt pin: 2

The interrupt pin on the YJ is hard wired to pin 2 and is not selectable like on the BlackWidow or the WiShield.

Pin 8, WiFi chip enable, provides a mechanism to turn off the WiFi chip from the ATmega. It was included to enable low power applications which might run on batteries to turn off WiFi when it is not required to conserve power. This pin is active low on the WiFi module and therefore has to be held low (0) to enable the WiFi chip.

Ben