HI,
As I said previously, I have never seen a SSD1322 driver chip Oled using I2C. The Oleds with 0ohm links to change between I1C and SPI normally use the SSD1305 / SSD1309 series ICs. My 3.1" Oled with SSD1322 does not have any 0ohm links and cannot be converted to I2C so I just checked the SSD1322 specification The SOLOMON SYSTECH SSD1322 SEMICONDUCTOR TECHNICAL DATA spec states:- > > Selectable MCU Interfaces: > o8-bit 6800/8080-series parallel interface > o3/4-wire Serial Peripheral Interface > > 8.1.3MCU Serial Interface (4-wire SPI) > The serial interface consists of serial clock SCLK, serial data > SDIN, D/C#, CS#. > In SPI mode, D0 acts as SCLK, D1 acts as SDIN. > For the unused data pins, D2 should be left open. The pins from D3 to > D7, E and R/W# can be connected to an external ground. > > 8.1.4MCU Serial Interface (3-wire SPI) > The 3-wire serial interface consists of serial clock SCLK, serial data > SDIN and CS#. > In 3-wire SPI mode, D0 acts as SCLK, D1 acts as SDIN. > For the unused data pins, D2 should be left open. The pins > from D3 to D7, R/W# (WR#), E(RD#) and D/C# can be connected to an > external ground. The operation is similar to 4-wire serial interface > while D/C# pin is not used. There are altogether 9-bits will be shifted > into the shift register on every ninth clock in sequence: D/C# bit, D7 > to D0 bit. The D/C# bit (first bit of the sequential data) will > determine the following data byte in the shift register is written to > the Display Data RAM (D/C# bit = 1) or the command register (D/C# bit = > 0). Under serial mode, only write operations are allowed. > cheers Patrick PS My lmsmonitor has been running all day, working great, switching between data and visualizations, on both sound files and streamed radio. P ------------------------------------------------------------------------ superpat999's Profile: http://forums.slimdevices.com/member.php?userid=9340 View this thread: http://forums.slimdevices.com/showthread.php?t=111790 _______________________________________________ unix mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/unix
