Motherboard 8
About the Motherboard 8 PCB
Motherboard 8 is an open source RISC-V PCB design by tart-telescope, published on GitHub under the GPL-3.0 license. It is a 6-layer board measuring 168.8 × 105.3 mm, with 57 components from 39 distinct parts.
Its main chip is the CH32V003F4U6, from the RISC-V family. Other key parts include the K7805MT-1000R4, AMS1117-3.3, CS48520S and LM2576SX-5.0. By type, the board carries 25 test points, 10 capacitors, 6 ICs, 4 connectors, 3 diodes and 3 resistors.
It belongs with the rf & radio designs in this gallery.
From the project
Designs for the TART-3 electronics hardware
This folder contains the schematics for the radio module of the TART radio telescope.
Main components on the Motherboard 8
Motherboard 8 bill of materials (BOM)
57 components, 39 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | K7805MT-1000R4 NC7SVU04P5X | SOT-353_SC-70-5 | U1 |
| 2 | AMS1117-3.3 | SOT-223-3_TabPin2 | U4, U5 |
| 1 | CH32V003F4U6 ch32v003f4u6 | QFN-20-1EP_3x3mm_P0.4mm_EP1.65x1.65mm | U7 |
| 1 | CS48520S | SOIC-8_3.9x4.9mm_P1.27mm | U9 |
| 1 | LM2576SX-5.0 | TO-263-5_TabPin3 | U10 |
| 1 | 1XXB16368MBA | OSC-SMD_4P-L2.5-W2.0-BL | X2 |
| 1 | C404113 RADIO 1-4 | CONN-TH_36P-P1.00-V_3183-10200P1T | J1 |
| 1 | C404113 RADIO 5-8 | CONN-TH_36P-P1.00-V_3183-10200P1T | J2 |
| 1 | C131337 SWDIO | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J5 |
| 1 | 9-28V | DB126V-5.0-2P-GN-P | J14 |
| 1 | DDR3_204P_SMD | CONN-SMD_204P-P0.60_AS0A621-H2S6-7H | FPGA_SLOT1 |
| 1 | Raspberry Pi 2 or 3 Raspberry_Pi_2_3 | raspberrypi_2_3 | RP1 |
| 1 | C319436 Reset | TS-1187A-B-A-B | SW1 |
| 1 | C5199798 +5V | TestPoint_Keystone_5015_Micro-Minature | TP1 |
| 2 | C5199798 GND | TestPoint_Keystone_5015_Micro-Minature | TP4, TP12 |
| 4 | C5199798 I1 | TestPoint_Keystone_5015_Micro-Minature | TP5, TP16, TP20, TP24 |
| 1 | C5199798 SDATA | TestPoint_Keystone_5015_Micro-Minature | TP6 |
| 4 | C5199798 I0 | TestPoint_Keystone_5015_Micro-Minature | TP7, TP18, TP22, TP26 |
| 1 | C5199798 CS# | TestPoint_Keystone_5015_Micro-Minature | TP8 |
| 1 | C5199798 SCLK | TestPoint_Keystone_5015_Micro-Minature | TP9 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C5199798 PGM | TestPoint_Keystone_5015_Micro-Minature | TP10 |
| 2 | C5199798 CLK_16 | TestPoint_Keystone_5015_Micro-Minature | TP11, TP13 |
| 4 | C5199798 Q1 | TestPoint_Keystone_5015_Micro-Minature | TP14, TP17, TP21, TP25 |
| 4 | C5199798 Q0 | TestPoint_Keystone_5015_Micro-Minature | TP15, TP19, TP23, TP27 |
| 1 | SS34 | D_SMA | D1 |
| 1 | C72043 PWR | D_0603_1608Metric | D4 |
| 1 | C72043 PC2 | D_0603_1608Metric | D5 |
| 1 | BLM18KG221SN1D | L_0603_1608Metric | FB1 |
| 1 | 100uH | L_Chilisin_BMRF00131360 | L1 |
| 1 | 10U 220uF | C_Elec_8x10.2 | C1 |
| 1 | 22U 1uF | C_0603_1608Metric | C2 |
| 1 | 10U 1nF | C_0402_1005Metric | C3 |
| 1 | 22U 100n | C_0402_1005Metric | C4 |
| 1 | 10U 100n | C_0402_1005Metric | C5 |
| 2 | 22U 22u | C_0603_1608Metric | C8, C12 |
| 2 | 100N 100n | C_0402_1005Metric | C9, C10 |
| 1 | 1000u | C_Elec_8x10.2 | C13 |
| 1 | 39K 1M | R_0402_1005Metric | R1 |
| 2 | 1k | R_0402_1005Metric | R13, R16 |
Motherboard 8 design files
The KiCad project lives in the tart-telescope/radio_module repository on GitHub; these links point at the commit this page was built from.
Motherboard 8: common questions
What microcontroller does the Motherboard 8 use?
The Motherboard 8 is built around the CH32V003F4U6, from the RISC-V family.
How big is the Motherboard 8 PCB?
The Motherboard 8 measures 168.8 × 105.3 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the Motherboard 8?
57 components, from 39 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Motherboard 8 design files?
From the tart-telescope/radio_module repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Motherboard 8 design in my own project?
Yes, under the terms of its GPL-3.0 license, which tart-telescope chose for the repository.
Can I test firmware for the Motherboard 8 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RISC-V firmware against it before you order a PCB.
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