2 layers110 × 36 mm
4 layers110 × 36 mm
Boot main
sokrasins/boot-selectorChoose your booting OS, now with more RP2040!
- Size
- 110 × 36 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 85
- Nets
- 85
- Pads
- 281
- Tracks, vias
- 371, 47
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 29 Jul 2024
- Updated
- 23 Aug 2024
Overview
Boot main is an open-source printed circuit board by sokrasins, from the sokrasins/boot-selector repository on GitHub, published under the MIT licence. It is a 4-layer board of 110 × 36 mm with 85 parts on 85 nets, routed with 371 tracks and 47 vias.
It is built around the RP2040, W25Q32JVSSIQ and W25Q32JVZPIQ. Its parts include 24 resistors, 24 diodes, 17 capacitors, 7 ICs and 3 transistors. It belongs with the RP2040 boards of this library.
Main components
3
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
W25Q32JVZPIQ
WSON-8-EP(5x6)-40℃~+85℃ 100,000 cycles 10uA 133MHz 2.7V~3.6V 20 Years 32Mbit 3ms SPI WSON-8-EP(5x6) NOR FLASH ROHSWinbondNOR FLASH
README
README.mdBoot Selector
Choose your booting OS, now with more RP2040!
Inspired by
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | LED | LED_SMD:LED_1206_3216Metric | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +8 |
| 16 | 1k | Resistor_SMD:R_0603_1608Metric | R13, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29 |
| 9 | 0.1u | Capacitor_SMD:C_0402_1005Metric | C8, C9, C11, C12, C13, C14, C15, C16, C17 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R33, R34, R35 |
| 3 | NPN | Package_TO_SOT_SMD:SOT-323_SC-70 | Q1, Q2, Q3 |
| 3 | ~ | cap_pads:square_20x20mm_guide | U6, U7, U8 |
| 2 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C3, C18 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C5, C6 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C7, C10 |
| 2 | 27.4R | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R30, R31 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1, SW2 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Conn_01x06_Pin | Connector_FFC-FPC:Hirose_FH12-6S-0.5SH_1x06-1MP_P0.50mm_Horizontal | J1 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | USB_C_Plug_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4115-03-C | P1 |
| 1 | W25Q32JVSS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U5 |
| 1 | W25Q32JVZP | Package_SON:WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U3 |
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Questions
How big is the Boot main PCB?
It measures 110 × 36 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Boot main use?
85 parts, built around the RP2040, W25Q32JVSSIQ and W25Q32JVZPIQ. 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 Boot main KiCad files?
From the sokrasins/boot-selector repository on GitHub, at the commit this page was made from: the board is pcb/boot_main/boot_main.kicad_pcb and its schematic pcb/boot_main/app_flash.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Boot main design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).