CutiePi是一款在Kickstarter上众筹的8寸平板电脑，由台湾的一只设计团队设计并开源出来，最早众筹时是基于树莓派CM3模块，目前已经升级到CM4，支持屏幕分辨率为1280*800.将于2022年Q1正式面市。
技术指标：
| BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5 GHz Raspberry Pi Compute Module 4, Wireless, 2GB Lite (CM4102000) |
| 8” IPS LCD (1280x800) |
| Li-Po 5000 mAh |
| WLAN 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac Bluetooth 5.0, BLE |
| Rear-facing camera 5MP (OV5647) |
| 1x USB type-A 1x USB type-C (charging) 1x micro HDMI 1x microSD slot |
| 206(W) x 134(H) x 14(D) mm |
| Raspberry Pi OS + CutiePi shell |
外观
拆开
细看 - 使用CM4为主控
内部电路板
CutiePi Shell（开源）
站立模式
Drivers for the CutiePi tablet
This repository hosts modified drivers and device tree sources needed for the CutiePi board, the open source Raspberry Pi Compute Module 4 carrier board.
Current release is tested on Raspberry Pi OS (arm64 bullseye) with kernel 5.10 and 5.11.
MIPI Display and touch
CutiePi tablet uses an 8-inch (800x1280) MIPI DIS TFT LCD display, it has ILI9881C as its LCD driver.
The needed display driver and overlay has been merged into Raspberry Pi's official linux tree (rpi-5.10.ybranch). We kept the driver and overlay files in this repo for reference.
A device tree overlay is also needed, which can be compiled from Display/cutiepi-panel-overlay.dts with following command:
dtc -I dts -O dtb -o cutiepi-panel.dtbo cutiepi-panel-overlay.dts
Copy the file to /boot/overlays, then add following configure in config.txt:
# MIPI DSI display
dtparam=i2c_arm=on
dtoverlay=cutiepi-panel
# camera
start_x=1
gpu_mem=128
# Uncomment for camera module v2
#dtoverlay=imx219
dtoverlay=ov5647
Compile the mpu6050-i2c5 overlay and copy it to /boot/overlays.
# Gyroscope
dtoverlay=i2c5,pins_10_11
dtoverlay=mpu6050-i2c5,interrupt=27
otg_mode=1
# MCU reading (ttyS0)
enable_uart=1
dtoverlay=uart1
Make sure #dtparam=spi=on is commented out.
Github资源链接：
硬件设计资料：
- Cadence OrCAD Schematic CutiePi_V2.3-20210409.DSN
- Cadence OrCAD/Allegro PCB file CutiePi_V2_3.brd
- Bill of Materials CutiePi_V2.3_BOM-20210802.xlsx
- PDF of schematic CutiePi_V2.3_schematic-20210414.pdf
硬禾发布
refdesignsharerefdesignshare