HardLabs

Efm32wg

dragonlock2·kicadboards·breakouts/efm32wg/efm32wg.kicad_pcb

Efm32wg PCB layout, top view — open source Silicon Labs board by dragonlock2
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About the Efm32wg PCB

Efm32wg is an open source Silicon Labs PCB design by dragonlock2, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 32 × 32 mm, with 61 components from 31 distinct parts.

Its main chip is the EFM32WG332F256-B-QFP64, from the Silicon Labs family. Other key parts include the AZ1117CR2-3.3 and LPC11U35FHI33/501. By type, the board carries 24 capacitors, 18 resistors, 4 connectors, 4 diodes, 3 ICs and 3 crystals.

From the project

Offsite backup for the miscellaneous KiCad boards that don't fit elsewhere

Development board for EFM32WG332F256 with LPC11U35-based DAPLink. Part is obsolete and lacks good Zephyr or Mbed support but I got free samples.

Main components on the Efm32wg

AZ1117CR2-3.3EFM32WG332F256-B-QFP64LPC11U35FHI33/501

Efm32wg bill of materials (BOM)

61 components, 31 distinct parts.

QtyPartRefs
1
AZ1117CR2-3.3
U1
1
EFM32WG332F256-B-QFP64
U2
1
LPC11U35FHI33/501
U3
1
DMP3099L-7
Q1
1
48MHz
Y1
1
32.768kHz
Y2
1
12MHz
Y3
1
Target
J1
1
DAPLink
J2
1
PERIPH0
J3
1
PERIPH1
J4
2
500mA
F1, F2
1
BTN
SW1
1
BOOT
SW2
1
LED_RABG
D1
1
DAP
D2
1
MSD
D3
1
CDC
D4
6
10u
C1, C2, C9, C10, C11, C19
2
10p
C3, C4
Show 11 more
QtyPartRefs
10
100n
C5, C12, C13, C14, C15, C16, C17, C20 +2
2
15p
C6, C7
2
1u
C8, C18
2
30p
C21, C22
1
DNP
R1
2
15
R2, R3
4
2k2
R4, R5, R6, R7
6
100
R8, R9, R10, R12, R13, R14
1
1k5
R11
3
33
R15, R17, R18
1
10k
R16

Efm32wg design files

The KiCad project lives in the dragonlock2/kicadboards repository on GitHub; these links point at the commit this page was built from.

Efm32wg: common questions

What microcontroller does the Efm32wg use?

The Efm32wg is built around the EFM32WG332F256-B-QFP64, from the Silicon Labs family.

How big is the Efm32wg PCB?

The Efm32wg measures 32 × 32 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Efm32wg?

61 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the Efm32wg design files?

From the dragonlock2/kicadboards repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Efm32wg design in my own project?

Yes, under the terms of its Apache-2.0 license, which dragonlock2 chose for the repository.

Can I test firmware for the Efm32wg without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Silicon Labs firmware against it before you order a PCB.

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