CC3000 restarts when adding "#include <SD.h>" to example ske

[420gandhi]

I would like to use the CC3000's SD card slot when running the HTTPServer sketch.

The example sketch runs fine itself:

Code: Select all

Hello, CC3000!

Free RAM: 821

Initializing...

Attempting to connect to myWifi
Connected!
Request DHCP

IP Addr: 192.168.1.3
Listening for connections...
Client connected.
Processing request
Action: GET
Path: /
Client disconnected

But when I include the one line "#include <SD.h>", each time I try to navigate to the ip address in my browser, the arduino restarts itself:

Code: Select all

Hello, CC3000!

Free RAM: 215

Initializing...

Attempting to connect to myWifi
Connected!
Request DHCP

IP Addr: 192.168.1.3
Listening for connections...
Hello, CC3000!

Free RAM: 215

Initializing...

Attempting to connect to myWifi
Connected!
Request DHCP

IP Addr: 192.168.1.3
Listening for connections...
Hello, CC3000!

Free RAM: 215

Initializing...

Attempting to connect to myWifi
Connected!
Request DHCP

That is the only change I make to the script. I notice that Ram moves from 800~ to 200~.
I checked my soldering and I don't think that that is a problem...
http://i.imgur.com/HYnYNKc.jpg
http://i.imgur.com/eAFclVT.jpg
http://i.imgur.com/u2uHTht.jpg
Any thoughts?

[adafruit_support_mike]

That sounds like a power issue. What are you using as a power supply?

[420gandhi]

I'm been powering it from the USB cable from my computer. I've read elsewhere sometimes this can be a problem but I want to look at the serial output at the same time...

[Franklin97355]

Try using a powered hub or a AC power brick (7.5 - 9.0 VDC)

[DigitalCowboy]

Try using a powered hub or a AC power brick (7.5 - 9.0 VDC)

Specifically a power source that can supply 1A or more.

"Make sure your Arduino is powered by a 1 amp or higher rated external power supply
when using with the CC3000! Powering an Arduino + CC3000 from a computer/laptop
USB port will lead to unstable behavior and lockups because the USB port can't supply
enough power!"

[420gandhi]

I switched to a 9v, 1A power supply and the Arduino still appears to be restarting when I add the line "#include <SD.h>".

The restarting happens during the "listening for connections" serial output.

Code: Select all

Hello, CC3000!

Free RAM: 205

Initializing...

Attempting to connect to Forbidden_Forest
Connected!
Request DHCP

IP Addr: 192.168.1.3
Listening for connectYns...
Hello, CC3000!

Free RAM: 205

Initializing...

Attempting to connect to Forbidden_Forest

[adafruit_support_mike]

Try removing the "#include <SD.h>" line and adding another copy of the line that checks the free RAM after the CC3000 makes its connection to the network.

[420gandhi]

Here is the serial output with the "#include <SD.h>" removed. The RAM stays the same at 811. The code works well and I see the "hello world" message when I navigate to 192.168.1.3 in my browser.

Code: Select all

Free RAM: 811

Initializing...

Attempting to connect to Forbidden_Forest
Connected!
Request DHCP

IP Addr: 192.168.1.3
Netmask: 255.255.255.0
Gateway: 192.168.1.1
DHCPsrv: 192.168.1.1
DNSserv: 192.168.2.1
Free RAM: 811

NOTE: This sketch may cause problems with other sketches
since the .disconnect() function is never called, so the
AP may refuse connection requests from the CC3000 until a
timeout period passes.  This is normal behaviour since
there isn't an obvious moment to disconnect with a server.

Listening for connections...
Client connected.
Processing request
Action: GET
Path: /
Client disconnected
Client connected.
Processing request
Action: GET
Path: /favicon.ico
Client disconnected

And here is it with the "#include <SD.h>" line added. RAM stays the same at 205 but the code still seems to restart itself :( Navigating to 192.168.1.3 in my browser does not work.

Code: Select all

Hello, CC3000!

Free RAM: 205

Initializing...

Attempting to connect to Forbidden_Forest
Connected!
Request DHCP

IP Addr: 192.168.1.3
Netmask: 255.255.255.0
Gateway: 192.168.1.1
DHCPsrv: 192.168.1.1
DNSserv: 192.168.2.1
Free RAM: 205

NOTE: This sketch may cause problems with other sketches
since the .disconnect() function is never called, so the
AP may refuse connection requests from the CC3000 until a
timeout period passes.  This is normal behaviour since
there isn't an obvious moment to disconnect with a server.

Listening™or connections...
Hello, CC3000!

Free RAM: 205

Initializing...

Attempting to connect to Forbidden_Forest
Connected!
Request DHCP

IP Addr: 192.168.1.3
Netmask: 255.255.255.0
Gateway: 192.168.1.1
DHCPsrv: 192.168.1.1
DNSserv: 192.168.2.1
Free RAM: 205

NOTE: This sketch may cause problems with other sketches
since the .disconnect() function is never called, so the
AP may refuse connection requests from the CC3000 until a
timeout period passes.  This is normal behaviour since
there isn't an obvious moment to disconnect with a server.

Listening™or connections...
 

Also I'm using an Arduino UNO, and I have not soldered the three MOSI SCK MISO tabs on the bottom of the CC3000. Does this information help?

[adafruit_support_mike]

WRT the SPI connections, could you post a photo of your hardware please? That kind of thing is easier to show than to explain.

WRT the output from the sketch, this line looks suspicious:

Code: Select all

Listening™or connections...

Something is causing a glitch in the Serial output buffer. Try adding a couple more calls to freeRAM() before and after the line which prints that output.