Search found 5 matches

by Laurynas
Tue Jan 28, 2014 2:19 am
Forum: OLED128 Display
Topic: [Solved] Raspberry Pi garbled image
Replies: 6
Views: 4639

Re: Raspberry Pi garbled image

After playing around with the the fbtft driver settings I finally got it working with SPI speed set to 19 MHz (default is 20MHz). Guess, driving the display at the max spec did not work in my case. Updating fbtft driver to a more conservative speed may save time for others. Registered display with t...
by Laurynas
Tue Jan 28, 2014 2:19 am
Forum: OLED128 Display
Topic: [Solved] Raspberry Pi garbled image
Replies: 6
Views: 4639

Re: Raspberry Pi garbled image

After playing around with the the fbtft driver settings I finally got it working with SPI speed set to 19 MHz (default is 20MHz). Guess, driving the display at the max spec did not work in my case. Updating fbtft driver to a more conservative speed may save time for others. Registered display with t...
by Laurynas
Sun Jan 26, 2014 12:58 am
Forum: OLED128 Display
Topic: [Solved] Raspberry Pi garbled image
Replies: 6
Views: 4639

Re: Raspberry Pi garbled image

Power supply voltage is solid on GPIO pins, I even went ahead and soldered 5cm wires to the headers on RPi and OLED PCB. Still no go, same issue.

I have tried using fbtft Raspberry Pi image, to avoid human error, still same issue.

Any other suggestions?
by Laurynas
Sat Jan 25, 2014 6:23 am
Forum: OLED128 Display
Topic: [Solved] Raspberry Pi garbled image
Replies: 6
Views: 4639

Re: Raspberry Pi garbled image

Cables are 15cm long, would that be a problem? I will check on power supply voltages. Although, I have tested with two different ones, supplying 2Amps each. Command line is not heavy on graphics, but I am still observing constant jitter, i.e. some groups of pixels jumping up and down with very visib...
by Laurynas
Sat Jan 25, 2014 2:07 am
Forum: OLED128 Display
Topic: [Solved] Raspberry Pi garbled image
Replies: 6
Views: 4639

[Solved] Raspberry Pi garbled image

Hello, I have bought OLED128 display and connected it to my Raspberry Pi. Followed wiring and software installation steps from http://www.freetronics.com/pages/oled128-quickstart-guide-raspberry-pi . As per instructions, I am using fbtft drivers I can start X and swap system console, BUT the image o...