HardLabs

Scot resolver

philcrump·scot-resolver·pcb/scot-resolver.kicad_pcb

Scot resolver PCB layout, top view — open source STM32 board by philcrump
Simulate this board

About the Scot resolver PCB

Scot resolver is an open source STM32 PCB design by philcrump, published on GitHub under the MIT license. It is a 2-layer board measuring 108.6 × 79.4 mm, with 137 components from 65 distinct parts.

Its main chip is the STM32F0xxKxTx, from the STM32 family. Other key parts include the AD8692ARMZ, AD8397ARZ, TSR1, MCP2562 and AD2S1210. By type, the board carries 62 capacitors, 34 resistors, 14 ICs, 9 connectors, 7 inductors and 6 diodes.

From the project

Firmware & PCB for CAN Interface to a Muirhead-Vactric Angular Resolver

22-32V DC Input STM32F042K6 Microcontroller @ 48MHz MCP2562 CAN 2.0A/B Communication Interface AD2S1210 Resolver to Digital Converter AD8397 Excitation Driver AD8692 Receiver Amplifiers

C25 has 0603 pad, C27 & C28 have 1210 pads, all should be 0805 to match the part. C26 has 1210 pad, should be 1206. Not disastrous, part still fits, with careful placement on 1210 to ensure direct contact with the pads. Input Voltage rating is 22-32V, not 19-36V as printed on the PCB (limited by U6-LM317 dropout and thermal). Optional Ripple Rejection Capacitor should be fitted across R22 (LM317 regulator)…

Scot resolver, from the project README
From the project README

Main components on the Scot resolver

AD8692ARMZAD8397ARZTSR1MCP2562STM32F0xxKxTxAD2S1210MCP1703A-5002_SOT223LT1762MCP1703A-3302_SOT223LM317_3PinPackage

Scot resolver bill of materials (BOM)

137 components, 65 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
AD8692ARMZ
IC1, IC3, IC6
1
AD8397ARZ
IC2
1
TSR1
IC4
1
MCP2562
IC8
1
STM32F0xxKxTx
IC9
1
AD2S1210
IC10
3
MCP1703A-5002_SOT223
U1, U3, U4
1
LT1762
U2
1
MCP1703A-3302_SOT223
U5
1
LM317_3PinPackage
U6
1
Crystal_GND24
Y1
1
Crystal
Y2
4
Conn_01x02_Female
J1, J5, J6, J8
3
Conn_01x03_Female
J2, J3, J4
1
CONN_01x03
J7
1
SWD
P1
2
MountingHole
H1, H2
1
TestPoint_Alt
TP1
6
LED
D2, D3, D4, D5, D6, D7
6
600R@100M/1A
FB1, FB2, FB3, FB4, FB5, FB6
Show 45 more
QtyPartRefs
1
Ferrite_Bead_Small
FB7
3
10u
C1, C39, C64
16
100n
C2, C3, C11, C15, C16, C42, C43, C55 +8
2
1n
C4, C5
2
100p
C6, C7
1
10u
C8
4
4n7
C9, C10, C12, C13
3
1u
C14, C20, C41
2
1n2
C17, C44
2
220p
C18, C45
2
6n8
C19, C46
4
1u/6.5V
C21, C29, C30, C31
2
4u7/50V
C22, C35
3
1u/5V
C23, C32, C33
1
10n/50V
C24
1
4u7/6.5V
C25
1
4u7/50V
C26
2
4u7/6.5V
C27, C28
1
1u/3.3V
C34
1
100n/50V
C36
1
4u7/50V
C37
1
4u7/5V
C38
1
100n/3V3
C53
1
100n/5V
C54
2
8p
C57, C58
1
10n
C63
2
18p
C65, C67
4
20k
R1, R2, R5, R6
2
6k2
R3, R4
2
820R
R7, R8
2
390R
R9, R10
2
910R
R11, R12
2
120K
R13, R26
2
1K2
R14, R27
2
2K
R15, R28
2
22K
R16, R29
2
2K7
R17, R30
1
68K
R18
1
5K6
R19
1
1K2
R20
1
240R/1%
R21
1
3K2/1%
R22
3
120R
R36, R41, R42
3
67R
R37, R38, R40
1
10K
R39

Scot resolver design files

The KiCad project lives in the philcrump/scot-resolver repository on GitHub; these links point at the commit this page was built from.

Scot resolver: common questions

What microcontroller does the Scot resolver use?

The Scot resolver is built around the STM32F0xxKxTx, from the STM32 family.

How big is the Scot resolver PCB?

The Scot resolver measures 108.6 × 79.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Scot resolver?

137 components, from 65 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 Scot resolver design files?

From the philcrump/scot-resolver repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Scot resolver design in my own project?

Yes, under the terms of its MIT license, which philcrump chose for the repository.

Can I test firmware for the Scot resolver without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

Similar boards