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2.8" TFT Touch Display Shield doesn't work

by elitechimp on Sat Apr 20, 2013 1:02 am

What i mean by "doesn't work" is that it keeps throwing me an error when i run the graphicstest program. I bought the shield from MakerShed, if that makes any difference...
Here's the serial output:
TFT LCD test
Using Adafruit 2.8" TFT Arduino Shield Pinout
Unknown LCD driver chip: 9128
If using the Adafruit 2.8" TFT Arduino shield, the line:
#define USE_ADAFRUIT_SHIELD_PINOUT
should appear in the library header (Adafruit_TFT.h).
If using the breakout board, it should NOT be #defined!
Also if using the breakout, double-check that all wiring
matches the tutorial.


Is there any way i can fix this issue? :)

Chimp
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Re: 2.8" TFT Touch Display Shield doesn't work

by pburgess on Sat Apr 20, 2013 1:15 am

Could you test it with this earlier version of the library and please let me know if that works for you? Thanks.
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Re: 2.8" TFT Touch Display Shield doesn't work

by elitechimp on Sat Apr 20, 2013 5:06 pm

Nope. here's the serial output when running graphicstest:
8 Bit LCD test!
Using Adafruit 2.8 inch TFT Arduino Shield Pinout
Unknown driver chip 9128


Is there anything else i can do
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Re: 2.8" TFT Touch Display Shield doesn't work

by adafruit_support_rick on Sun Apr 21, 2013 9:54 am

What kind of arduino are you running with?
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Re: 2.8" TFT Touch Display Shield doesn't work

by elitechimp on Sun Apr 21, 2013 3:24 pm

I'm running it on an Arduino Uno Rev 3. I bought them both (The arduino and the display) from MakerShed (if that makes any difference).
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Re: 2.8" TFT Touch Display Shield doesn't work

by adafruit_support_mike on Mon Apr 22, 2013 10:11 am

The TFT library only accepts certain chip IDs, 0c9328 being the closest to the value yours apparently returned.

Occasionally, single-bit errors like that are signs of a marginal hardware connection. Double-check your hardware, unplug and replug the pins a few times to scrape through any oxidation layer that might have appeared on the pins or the contacts, try to avoid long cable runs, etc.

Also, just so we can get a sense of how you have things connected, could you please post a photo of your setup?
When you void a product warranty, you give up your right to sue the manufacturer if something goes wrong and accept full responsibility for whatever happens next. And then you truly own the product.
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Re: 2.8" TFT Touch Display Shield doesn't work

by adafruit_support_mike on Tue Apr 23, 2013 9:00 pm

UPDATE: We've talked it over, and would like to dissect your TFT.

We've had a few other reports of chips returning 0x9128 as an address. That seems to be a bit too specific to be a random bit-error, but we can't be sure until we've tested the device in our own lab.

So.. we'd like to trade the shield you have now for one from our inventory. Send a message to support@adafruit.com and they'll work out the details with you.
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