HardLabs

Logix core

Gherkin·logix-core

Logix core PCB layout, top view — open source FPGA board by Gherkin

About the Logix core PCB

Logix core is an open source FPGA PCB design by Gherkin, published on GitHub. It is a 6-layer board measuring 100 × 80 mm, with 222 components from 34 distinct parts.

Its main chip is the XC7A35T-FGG484, from the FPGA family. Other key parts include the MP5470GL-0000-P, TPUSBLC6-4SC6, FT230XQ, MX25L3233FZN and C2803004. By type, the board carries 88 capacitors, 83 resistors, 27 transistors, 6 ICs, 5 inductors and 4 switches.

Logix core, from the project README
From the project README

Main components on the Logix core

XC7A35T-FGG484MP5470GL-0000-PTPUSBLC6-4SC6FT230XQMX25L3233FZNC2803004

Logix core bill of materials (BOM)

222 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XC7A35T-FGG484
U1
1
MP5470GL-0000-P
U2
1
TPUSBLC6-4SC6
U3
1
FT230XQ
U4
1
MX25L3233FZN
U5
1
C2803004
MT41K256M16TW-107:P
U6
3
TPNTK3139PT1G
Q1, Q10, Q19
24
2N7002M3T5G-ES
Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 +16
2
QSH-030-01-X-D-A-XX
J1, J2
1
878321420
J3
1
SMXS-04K-TP
SW1
3
TS-1187A-B-A-B
SW2, SW3, SW4
1
USB-MR-D-037
USB1
3
SLS0391FR1A1GD_C2913076
LED1, LED2, LED3
2
LED
D1, D2
1
C85813
FerriteBead
FB1
4
2.2U
2.2u
L1, L2, L3, L4
9
47U
47u
C1, C14, C15, C28, C29, C42, C43, C71 +1
18
4.7U
4.7u
C2, C3, C12, C13, C16, C17, C26, C27 +10
34
0.47U
0.47u
C4, C5, C6, C7, C8, C9, C10, C11 +26
Show 14 more
QtyPartRefs
6
22U
22u
C44, C45, C46, C48, C49, C50
6
1u
C47, C58, C59, C60, C61, C63
8
100N
100n
C51, C52, C53, C57, C84, C85, C86, C87
4
10N
10n
C54, C62, C64, C80
2
47P
47p
C55, C56
1
100U
100u
C65
15
0
R1, R2, R3, R4, R5, R6, R8, R9 +7
1
10K
10k
R7
2
27.4
R11, R13
4
100
R14, R15, R16, R20
2
1k
R17, R18
1
240
R19
34
100K
100k
R21, R30, R31, R32, R33, R34, R35, R36 +26
24
68
R22, R23, R24, R25, R26, R27, R28, R29 +16

Logix core design files

The KiCad project lives in the Gherkin/logix-core repository on GitHub; these links point at the commit this page was built from.

Logix core: common questions

What microcontroller does the Logix core use?

The Logix core is built around the XC7A35T-FGG484, from the FPGA family.

How big is the Logix core PCB?

The Logix core measures 100 × 80 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the Logix core?

222 components, from 34 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 Logix core design files?

From the Gherkin/logix-core 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 Logix core design in my own project?

The repository has no license, so all rights stay with Gherkin. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Logix core without the hardware?

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

Similar boards