This release fixes an issue that broke display output on small LCD screens. Updating the Raspberry Pi firmware to the latest from the Raspberry Pi Foundation fixed the issue. See pappersverk/rpi_fb_capture#2 for details.
- Updated dependencies
This is the initial Nerves System release for the Raspberry Pi 4. It's version corresponds to other Nerves System releases for Raspberry Pi's for ease of referring to version numbers.
While similar looking, the Raspberry Pi 4 has some significant differences with other Raspberry Pis. The following functionality appears to work so far:
- Support for up to 4 GB of DRAM (1 GB and 2 GB versions supported too)
- I2C, SPI, and GPIO - The RPi 4 has additional pin mux options. They have not been tested.
- The primary UART has not been redirected away from the Bluetooth module. This is useful for using BLE with the Harald library, but is different from the other RPi defaults
- The Pi Camera and Raspberry Pi Foundation 7" Touchscreen both work
- Gigabit Ethernet works
- WiFi appears to work
- USB 3 devices
The following major features have not been tested:
- OpenGL support and HDMI output
- USB Gadget mode via the USB C connector (the gadget drivers are currently enabled, though)
Additionally, the Raspberry Pi 4 port uses 32-bit mode on the ARM even though the processor supports 64-bit usage. 64-bit usage didn't build when tried and the Raspberry Pi Foundation promotes 32-bit usage so that's what's used here.
- Primary constituent project versions