4 layers40 × 14 mm
Rs probe
probe-rs/rusty-probe
This is an open hardware probe for the Serial Wire Debug (SWD) and JTAG protocol. Based on the RP2040 MCU.
108 parts170
4 layers10 × 9 mm
PicoGate
blueskull/PicoGate27A tiny FPGA core module based on GW1NZ-LV1, CH552 and SLG46580
- Size
- 10 × 9 mm
- Copper layers
- 4
- Thickness
- 0.8 mm
- Parts
- 108
- Nets
- 57
- Pads
- 216
- Tracks, vias
- 463, 97
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 26 Aug 2021
- Updated
- 7 Jan 2022
Overview
PicoGate is an open-source printed circuit board by blueskull, from the blueskull/PicoGate repository on GitHub, published under the Unlicense licence. It is a 4-layer board of 10 × 9 mm with 108 parts on 57 nets, routed with 463 tracks and 97 vias.
It is built around the CH552P. Its parts include 80 connectors, 13 resistors, 12 capacitors and 3 ICs. It belongs with the fPGA and programmable logic boards and the FPGA and CPLD and 8051 (CH55x, STC, AT89) boards of this library.
Main components
1README
README.mdPicoGate
A tiny FPGA core module featuring GW1NZ-LV1.
This module contains a Gowin GW1NZ-LV1 FPGA in 6mm*6mm QFN48 package, a WCH CH552 USB MCU in 3mm*3mm QFN16 package, and a Dialog Semiconductor (formerly SiLego) SLG46580 PMIC in 2mm*3mm QFN20 package. The FPGA has 23 IOs brought out, referenced at a programmable IO voltage (by default, 1.8V and 3.3V switchable), with an additional of 2 fixed 3.3V IOs and 3 high voltage (5V) IOs, expanded through SLG46580. The MCU provides USB-JTAG and USB-SPI bridging, clock generation and supply voltage supervision, while the PMIC provides 1.2V, 3.3V and programmable VIO as well as 5V logic level shifting.
The entire module is packaged in a space saving 9.0mm*10.0mm BGA package with 23+2+3 digital IO pads, 1.2V/3.3V/VIO regulator output pads, 5V and USB pads and ample of ground pads. As of early-2022, the budgetary 1kpcs BOM cost is around $2.5, making it ideal for adding simple custom logics to any existing designs.
The hardware and GreenPak firmware designs are licensed under the unlicense license, meaning you can basically do whatever you'd like with it, but the author kindly asks you to do good things and give more then you take. The MCU firmware is stored in my ch552-jtag repository and is licensed accordingly.
Parts
108| Qty | Value | Footprint | References |
|---|---|---|---|
| 80 | CONN1X1 | Mechanical:PAD1_0.35_0.35_R | P1, P2, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21, P22, P23 +64 |
| 13 | Resistor | Components:0201 | R1, R2, R3, R4, R5, R6, R9, R10, R11, R12, R13, R14, R15 |
| 12 | Capacitor | Components:0201 | C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12 |
| 1 | CH552P | Components:QFN16_3.0_3.0_0.5_US | U2 |
| 1 | GW1NZ-LV1QN48 | Components:QFN48_6.0_6.0_0.4_US | U3 |
| 1 | SLG46580 | Components:QFN20_3.0_2.0_0.4_US | U1 |
Questions
How big is the PicoGate PCB?
It measures 10 × 9 mm and has 4 copper layers, 0.8 mm thick.
What parts does the PicoGate use?
108 parts, built around the CH552P. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PicoGate KiCad files?
From the blueskull/PicoGate repository on GitHub, at the commit this page was made from: the board is PicoGate.kicad_pcb and its schematic PicoGate.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PicoGate design in my own project?
Its repository publishes it under the Unlicense licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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