

Kircular Accelerator Prototype Innovative New Experience
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 49
- Pads
- 117
- Tracks, vias
- 39, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 1 Dec 2018
- Updated
- 5 Jul 2024
Overview
Scu is an open-source printed circuit board by chiplet, from the chiplet/kapine repository on GitHub. It is a 2-layer board with 27 parts on 49 nets, routed with 39 tracks and 0 vias.
It is built around the LM3670MF-1.8 and LP5907MFX-3.3. Its parts include 13 capacitors, 5 resistors, 3 ICs, 2 diodes and 2 connectors. It belongs with the STM32 boards of this library.
Main components
2LM3670MF-1.8
SOT-23-5-40℃~+85℃@(TA) 1 1.8V 15uA 1MHz 2.5V~5.5V 350mA Buck Buck Built-in Fixed Yes SOT-23-5 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersLP5907MFX-3.3
SOT-23-5-40℃~+125℃@(Tj) 1 10uVrms 12uA 250mA 250mV@(250mA) 3.3V 5.5V 82dB@(1kHz) Fixed Positive Short Circuit Protection、Thermal shutdown、Enable control、Input under-voltage protection、Output discharge SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdKAPINE
Kircular Accelerator Prototype Innovative New Experience
Setup
KiCAD Library Setup
Run the following command to install the third party KiCAD libraries used in the project
git submodule update --init --recursive
This project uses components from digikey-kicad-library which is configured as a git submodule of this project. Git doesn't clone submodules of a project by default when the project it is cloned so this has to be done manually.
Hardware
Pinout
Application Signal Descriptions
- m[0..15] -- Electromagnet control signals
- s[0..15] -- Photogate sensor input signals
- Debug 1 -- Debug led 1
- Debug 2 -- Debug led 2
- USART1 -- Command link UART
| Microcontroller Pin | Application Signal | Direction | Alternate Function |
|---|---|---|---|
| PB5 | m0 | Digital out | TBD |
| PD2 | m1 | Digital out | TBD |
| PC11 | m2 | Digital out | TBD |
| PA12 | m3 | Digital out | TBD |
| PA8 | m4 | Digital out | TBD |
| PC8 | m5 | Digital out | TBD |
| PC6 | m6 | Digital out | TBD |
| PB14 | m7 | Digital out | TBD |
| PB11 | m8 | Digital out | TBD |
| PB2 | m9 | Digital out | TBD |
| PC5 | m10 | Digital out | TBD |
| PA3 | m11 | Digital out | TBD |
| PC3 | m12 | Digital out | TBD |
| PC1 | m13 | Digital out | TBD |
| PB9 | m14 | Digital out | TBD |
| PB7 | m15 | Digital out | TBD |
| PB4 | s0 | Digital in | TBD |
| PC12 | s1 | Digital in | TBD |
| PC10 | s2 | Digital in | TBD |
| PA11 | s3 | Digital in | TBD |
| PC9 | s4 | Digital in | TBD |
| PC7 | s5 | Digital in | TBD |
| PB15 | s6 | Digital in | TBD |
| PB13 | s7 | Digital in | TBD |
| PB10 | s8 | Digital in | TBD |
| PB1 | s9 | Digital in | TBD |
| PC4 | s10 | Digital in | TBD |
| PA2 | s11 | Digital in | TBD |
| PC2 | s12 | Digital in | TBD |
| PC0 | s13 | Digital in | TBD |
| PB8 | s14 | Digital in | TBD |
| PB6 | s15 | Digital in | TBD |
| PA0 | Debug 1 | Digital out | TBD |
| PA1 | Debug 2 | Digital out | TBD |
| PA9 | USART1_TX | Digital out | AF7 |
| PA10 | USART1_RX | Digital in | AF7 |
| PC13 | RGB LEDs | Digital out | TBD |
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C5, C7 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C8, C10, C12 |
| 3 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C4, C9, C11 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 10u | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C13 |
| 1 | 470k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | Conn_01x03_MountingPin | Connector_Molex:Molex_PicoBlade_53261-0371_1x03-1MP_P1.25mm_Horizontal | J1 |
| 1 | Conn_01x06_MountingPin | Connector_Molex:Molex_PicoBlade_53261-0671_1x06-1MP_P1.25mm_Horizontal | J2 |
| 1 | LM3670MF | Package_TO_SOT_SMD:TSOT-23-5 | U2 |
| 1 | LP5907MFX-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | STM32F072C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
Questions
What parts does the Scu use?
27 parts, built around the LM3670MF-1.8 and LP5907MFX-3.3. 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 Scu KiCad files?
From the chiplet/kapine repository on GitHub, at the commit this page was made from: the board is hw/scu/main/main.kicad_pcb and its schematic hw/motherboard/main/main.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Scu design in my own project?
Its repository states no licence, so its author keeps all rights: ask chiplet before reusing the design.
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