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-------------------------------------------------------------------------------
SSD1306 OLED display controller, 4-wire SPI and I2C modes
-------------------------------------------------------------------------------
This capture contains a sequence of an SSD1306 display controller which is
popular for OLED display modules. The controller supports various protocols.
I2C and 4-wire SPI are used most often.
Logic analyzer setup
--------------------
The 4-wire SPI capture was taken with DreamSourceLab DSLogic logic analyzer,
sampling 4 logic channels at a rate of 10MHz:
Probe SSD1306
-------------------
0 CLK (clock)
1 MOSI (master out, slave in)
2 DC (data / command)
3 CS (chip select)
The I2C capture was taken with DreamSourceLab DSLogic logic analyzer,
sampling 2 logic channels at a rate of 2MHz:
Probe SSD1306
-------------------
0 SCL (clock)
1 SDA (data)
Data
----
See SSD1306 datasheet [1] and an STM32 library [2] used to generate recorded
signals.
[1]: https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf
[2]: https://github.com/afiskon/stm32-ssd1306
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