Display used in this demo: 0.96" 128x64 SPI SSD1306 OLED
OLED display is available here: https://www.aliexpress.com/wholesale?SearchText=128x64+SPI+SSD1306
Connect OLED display to HiFive1 board using this table:
| SSD1306 | HiFive1 |
|---|---|
| GND | GND |
| VCC | 3.3V |
| D0 (CLK) | 13 (SPI1 SCK) |
| D1 (MISO) | 11 (SPI1 MOSI) |
| RES (Reset) | 7 |
| DC (Data or Command) | 6 |
| CS (Chip Select) | 10 |
Build 32-bit RV32GC toolchain: https://github.com/riscv/riscv-gnu-toolchain
$ export CROSS_COMPILE=/path/to/riscv32-unknown-elf-
$ git clone --recursive https://github.com/osfive/hifive1-oled
$ cd hifive1-oled
$ make
Install openocd from https://github.com/riscv/riscv-openocd
$ sudo openocd -f board/sifive-hifive1.cfg -c "flash protect 0 64 last off; program obj/hifive1-oled.elf verify; resume 0x20400000; exit"
