Connecting OLED display ssd1306 to the Nucleo F401RE
Pinout: OLED:STM32 GND:GND VCC:5V D0:SCK/D13(CN5) D1:MOSI/D11(CN5) RES:D9(CN5) DC:D7(CN9) CS:CS/D10(CN5)
Environment: Library was taken from https://github.com/afiskon/stm32-ssd1306 STM32 NUCLEO-F401RE OLED display ssd1306 Linux Mint 18.2 Sonya STM32Cube_1.0 version 4.24.0.Repository is STM32Cube_FW_F4_V1.19.0. System Workbench for STM32 (Version: 1.13.2.201703061529) based on Eclipse IDE version Mars.2.Release 4.5.2
Some moments: Prescaler 64 ~ 34FPS Prescale 128 ~ 18FPS SPI should be 1EDGE: hspi1.Instance = SPI1; hspi1.Init.Mode = SPI_MODE_MASTER; hspi1.Init.Direction = SPI_DIRECTION_2LINES; hspi1.Init.DataSize = SPI_DATASIZE_8BIT; hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; hspi1.Init.NSS = SPI_NSS_SOFT; hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64; hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; hspi1.Init.TIMode = SPI_TIMODE_DISABLE; hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; hspi1.Init.CRCPolynomial = 10;