projects / sigrok-dumps.git / blame
| Commit | Line | Data |
|---|---|---|
| 7efb865f AA |
1 | ------------------------------------------------------------------------------- |
| 2 | SSD1306 OLED display controller, 4-wire SPI and I2C modes | |
| 3 | ------------------------------------------------------------------------------- | |
| 4 | ||
| 5 | This capture contains a sequence of an SSD1306 display controller which is | |
| 6 | popular for OLED display modules. The controller supports various protocols. | |
| 7 | I2C and 4-wire SPI are used most often. | |
| 8 | ||
| 9 | ||
| 10 | Logic analyzer setup | |
| 11 | -------------------- | |
| 12 | ||
| 13 | The 4-wire SPI capture was taken with DreamSourceLab DSLogic logic analyzer, | |
| 14 | sampling 4 logic channels at a rate of 10MHz: | |
| 15 | ||
| 16 | Probe SSD1306 | |
| 17 | ------------------- | |
| 18 | 0 CLK (clock) | |
| 19 | 1 MOSI (master out, slave in) | |
| 20 | 2 DC (data / command) | |
| 21 | 3 CS (chip select) | |
| 22 | ||
| 23 | The I2C capture was taken with DreamSourceLab DSLogic logic analyzer, | |
| 24 | sampling 2 logic channels at a rate of 2MHz: | |
| 25 | ||
| 26 | Probe SSD1306 | |
| 27 | ------------------- | |
| 28 | 0 SCL (clock) | |
| 29 | 1 SDA (data) | |
| 30 | ||
| 31 | ||
| 32 | Data | |
| 33 | ---- | |
| 34 | ||
| 35 | See SSD1306 datasheet [1] and an STM32 library [2] used to generate recorded | |
| 36 | signals. | |
| 37 | ||
| 38 | [1]: https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf | |
| 39 | [2]: https://github.com/afiskon/stm32-ssd1306 |