ClockworkPi R01

Software Support
Linux and U-Boot upstreaming are in progress. See Allwinner_Nezha for build instructions. For U-Boot on the DevTerm, use the devterm_r_01_defconfig configuration.

Add-ons
On the back/bottom side are solder pads for a SPI flash, NAND or NOR. You need to add resistors in order to use it. The top left pin close to the edge is pin 1 (CS).

Carrier Boards
ClockworkPi's R-01 "core" module is pin compatible with RaspberryPi CM3 via DDR2-SODIMM 200 Pins interface.

Clockwork nomenclature

 * "core": such as R01, slots into a CM3 compatible interface on the "mainboard".
 * "mainboard": is the ClockworkPi v3.14 which accepts a "core" (R01),
 * "exp" - M.2 interface
 * "kit" - bundles together "core", "main", "ext", etc. Examples are DevTerm Kit R-01 and uConsole Kit R-01

ClockworkPi v3.14
This board features
 * PMU which supports reliable and complete lithium battery charge and discharge management
 * Integrated 5G-WIFI (802.11ac) + Bluetooth 5.0
 * High-gain antenna
 * 3x USB-A 2.0 interface
 * USB-C* charging port
 * TF card (Micro SD card) slot
 * 40 Pins MIPI screen interface
 * Micro-HDMI interface
 * 3.5 headphone jack, supports microphone input
 * Onboard stereo audio power amplifier chip
 * 40 Pins GPIOs expansion interface (using standard 0.5mm FPC connector)
 * 52 Pins extension module interface (using standard M.2 Mini PCI-E connector) for the “EXT. module”. Pins for UART are on this connector.

Schematics

Known Issue: DevTerm Kit: "UART" port on "ext" board is unstable or "read only"
DevTerm's "exp" board has electrical issues with the USB OTG UART. See:


 * https://forum.clockworkpi.com/t/devterm-r-01-ext-board-uart-is-read-only/8704
 * https://github.com/emutyworks/DevTerm-R01/wiki/Connect-with-USB-UART
 * Another fix is to add jumper wires to UART Rx, Tx, Ground and use an external high-quality 3.3v UART. DO NOT USE THIS METHOD WITH AN RS232 ADAPTER.

Waveshare Compute Module PoE Board
Waveshare wiki

This board features a PoE ethernet port connected via USB to the module.

In addition, there are 3 micro USB ports for power supply, a built-in USB serial adapter, and USB host, as well as 4 USB-A host connectors.

Note that this board offers **no** access to USB0, which is the OTG/FEL USB port.

More connectors:
 * video: HDMI (Type A - full), 1x MIPI DSI, 2x MIPI CSI
 * audio: via HDMI, I2S
 * storage: µSD slot
 * fan header
 * 2 LEDs for power status and "Power ACT" (not applicable to the R01?)

WaveShare PiLaptop
Waveshare wiki

Whether this laptop works with the R01 needs confirmation. It was designed for the Raspberry Pi CM3.

Pictures
= External links =
 * hardware design, schematics, kernel patches, etc