Introduction I've got an DD-9664FC-2A OLED display from densitron (controller is SSD1331). I ordered it from farnell along with the adapter board. I've got troubles interfacing this display serially to my AT91SAM7S256. You can find my code along with datasheets for display, controller and adapter board here: http://lupin.shizzle.it/oled_display.zip Software I've done everything to slow down the software as far as i could (to make sure i am not going too fast for the display). The µC should run at about 8 MHz and i (almost randomly) added heavy delay times. I first tried to use the example sequences that one can find in the display datasheet. Then i found this website offering code to interface exactly the same display: http://www.rayslogic.com/propeller/3rdPartyHardware/uOLED-96-Prop/uOLED-96-Prop.htm I am now using the sequence presented in the driver on that site because i trust it to be correct. Hardware I short circuited jumper J3, J8 (VDDIO to VDD), J4, J5, J6 (BS1 to GND) and J7 (BS2 to GND) on the adapter board. This should be the standard configurations. I generate the high voltage for OLED with a little unregulated SMPS (voltage clamp with zener diodes). It is switched to the OLED display by NPN+PNP transistor. Here is a "nice" picture of my setup: http://lupin.shizzle.it/oledaufbau.jpg The serial interface of the SSD1331 is described in the datasheet on page 17. I just connected D0 and D1 which should make up the serial interface: D0 being clock -> connected to PA14 D1 being data -> connected to PA13 DC -> connected to PA7 RES -> connected to PA8 CS -> connected to PA11 RW_WR tied to GND E_RD tied to GND I have added a few layers of stick tape on the bottom of the fixture to increase the preasure on the foil connector pins. I wonder if i should solder the display to make sure it got contact. Problems So far i was not able to get a single pixel lit (not randomly nor in a controlled behaviour). I don't see the flaws in my software, it appears straight forward to me. Does anyone know whether it is dangerous to connect the high drive voltage (VCC) to the OLED before it was properly initialized?
Grr... after all it was just the connection from the display to the adapter board, the fixture was insufficient and sticky tape didn't work. I used some kind of packaging foam and it shows an image now! http://lupin.shizzle.it/oledworking.jpg It looks a lot better in real life...
Maybe you can ask help from Blaze Display (www.blazedisplay.com). We buy OLED and other LCD displays (LCD panel, LCD module) from them.
Watch this topic
Disable multi-page view
Please log in before posting. Registration is free and takes only a minute.
Existing account
Do you have a Google/GoogleMail account? No registration required!
Log in with Google account
Log in with Google account
No account? Register here.