alex66
Junior Member
Posts: 14
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Post by alex66 on Apr 30, 2021 11:02:17 GMT -8
Hi everyone
I need help. Teensy 4.0 attached to Gameduino 3X Dazzler for Teensy. Sketch work only after uploading. If I remove power from Teensy then connect it back Teensy displays boot image. I have ordered two Gameduino 3X Dazzler for Teensy boards.
Same results with both. What I'm doing wrong?
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Post by jamesbowman on Apr 30, 2021 17:11:41 GMT -8
Hi Alex,
Are you using gd2-lib or the CircuitPython for Teensy?
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alex66
Junior Member
Posts: 14
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Post by alex66 on May 1, 2021 2:27:11 GMT -8
Gd2-lib and Arduino IDE. I trying to upload examples from library. Simple sketches like 'Hello World' works after short press of reset button on Teensy, but more complex like radarchart are not. When using Arduino UNO everything
work perfectly. but my project requires lot more memory and speed than Arduino capable to carry.
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Post by jamesbowman on May 1, 2021 6:08:23 GMT -8
Please can you try this - it's Teensy/Dazzler specific, and should be before the GD.Begin():
pinMode(16, OUTPUT);
digitalWrite(16, LOW);
delay(50);
digitalWrite(16, HIGH);
delay(1000);
GD.begin(...);
Pin 16 is the Dazzler hard reset.
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alex66
Junior Member
Posts: 14
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Post by alex66 on May 2, 2021 4:39:26 GMT -8
Working on every example! Thank you so much.
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Post by pascalleray83 on May 5, 2021 4:52:48 GMT -8
I have a DAZZLER board for TEENSY 4.0 . After gameduino library installation, compilation OK, loading the HELLO WORLD : sketch_may05a, but screen remains black.
I'm using an ASUS VT207 touchscreen.
Thanks for your help !
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Post by armadafg on Jun 13, 2021 13:18:00 GMT -8
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Post by davidhall99 on Feb 3, 2023 6:04:15 GMT -8
Please can you try this - it's Teensy/Dazzler specific, and should be before the GD.Begin(): pinMode(16, OUTPUT);
digitalWrite(16, LOW);
delay(50);
digitalWrite(16, HIGH);
delay(1000);
GD.begin(...);
Pin 16 is the Dazzler hard reset. I have this same problem, except that I have the module version of the Dazzler, so there are no connections unless I make them. Where is this code writing to on the Dazzler? If needed, here are further details of my setup: I am using the downloaded GD2.h and helloworld demo sketch (both 1.3.4). I have connected the pins as shown below: • Teensy 12 to Dazzler 22 SPI out MISO • Teensy 11 to Dazzler 28 SPI in MOSI • Teensy 13 to Dazzler 29 SPI in SCK • Teensy 10 to Dazzler 27 SPI in DAZZLER SEL (and I changed one line in GD2.h from #define DEFAULT_CS 8 to #define DEFAULT_CS 10) Plus GND and 5V. I have confirmed the power supply is there and that pin 27 is now low. Update: I noticed a pad labelled RST on the Dazzler, so I decided that was probably the one. However I got no result from trying this method on that pad. I have also now discovered that my sketch is hanging at GD.begin(0). |
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Post by CeeT on Mar 24, 2023 3:57:45 GMT -8
I there I am having the same issues with the Dazzler module and a Teensy 4.1. I have connected as the following
Teensy 08 = Dazzler 25 GPU SEL
Teensy 09 = Dazzler 26 SD SEL Not using at present
Teensy 10 = Dazzler 27 DAZZLER SEL
Teensy 11 = Dazzler 28 MOSI
Teensy 12 = Dazzler 22 MISO
Teensy 13 = Dazzler 29 SCK
Implemented the 'Hard Reset' listed above as well
I also have changed the Default CS from 8 to 10, it is supplied with its own 5 volt supply via the 5V input and all boards are grounded. Display (7" HDMI) shows the Gameduino Logo if powered up on its own but shows nothing when the teensy is connected.
Have tried the 'Hello World' and 'Widgets' sketches with nothing displayed.
Any ideas what maybe happening or not in this case, have I got the wiring completely wrong?.
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