Design DocumentRaw Githubusercontent

Olimex GateMateA1-EVB Rev.C FPGA Evaluation Board

Hardware schematic for the GateMateA1-EVB, featuring the CCGM1A1 FPGA, RP2040 controller, and peripherals like VGA, PS/2, and Pmod interfaces.

View design document

Overview

This design document provides the Rev.C hardware schematic for the GateMateA1-EVB evaluation board, centered on the Cologne Chip CCGM1A1 GateMate FPGA. The design incorporates a Raspberry Pi RP2040 for JTAG programming and system management. Power regulation is handled by Texas Instruments TPS62A02ADRLR buck converters to provide 1.2V core, 1.8V, and 2.5V rails. The board includes multiple interfaces including VGA, a PS/2 mini-DIN port, and Pmod headers using TXB0108PWR level shifters. Memory support is provided through Zetta Device SPI Flash and Lyontek SRAM.

Use Cases

FPGA prototyping and development
Hardware evaluation of Cologne Chip GateMate series
Reference design for RP2040-based JTAG controllers
Embedded system design with VGA and PS/2 peripherals

Topics

GateMateA1-EVB

CCGM1A1

FPGA

Olimex

RP2040

TPS62A02ADRLR

TXB0108PWR

VGA

PS/2

Pmod

Schematic

Referenced Parts

TXB0108PWR

Texas Instruments

U5 TXB0108PWR(TSSOP-20)

MCP120T-300I/TT

Microchip

U4 NA(MCP120T-300I/TT(SOT-23-3))

CCGM1A1

Cologne Chip

U1H CCGM1A1(FBGA-324)

A40-00119-A52-12

G-Switch

USB-C-16P-F(A40-00119-A52-12)

HX7027

Hexin

U2 HX7027(SOT-23-3)

BSS138

Onsemi

FET2 BSS138(SOT-23-3)

RP2040

Raspberry Pi

U10 RP2040(QFN-56_7x7mm_P0.4mm)

TPS62A02ADRLR

Texas Instruments

U15 TPS62A02ADRLR(SOT-563-6)

PIM201610-1R0MTS00

Cyntec

L7 1.0uH/4.2A/DCR=35mR/20%/2.00x1.60x1.00mm/L2016(PIM201610-1R0MTS00)

DSHP04TS-S

Diptronics

CFG_SET1 DSHP04TS-S

SX5M10.000M20F30TNN

LCSC

CR1 Q10MHz/30ppm/1.62V-3.63V/4P/5x3.2mm(SX5M10.000M20F30TNN_LCSC-C2901522)

LY68S3200SLT

Lyontek

U7 LY68S3200SLT(SOIC-8_150mil)

ZD25WQ16CSIGT

Zetta Device

U8 ZD25WQ16CSIGT(SOIC-8_208mils)

GG0402052R542P

G-NOR

TVS5 NA(GG0402052R542P)

YTS-A016-X

Yite

FPGA_BUT1 YTS-A016-X

1N5819S4

Generic

D1 1N5819S4/SOD123

133MHz

Maxim

For example, they can generate a 48MHz clock which meets the frequency accuracy requirement of the USB interface and a 133MHz maximum speed system clock.

TXB0108PWR	Texas Instruments	U5 TXB0108PWR(TSSOP-20)
MCP120T-300I/TT	Microchip	U4 NA(MCP120T-300I/TT(SOT-23-3))
CCGM1A1	Cologne Chip	U1H CCGM1A1(FBGA-324)
A40-00119-A52-12	G-Switch	USB-C-16P-F(A40-00119-A52-12)
HX7027	Hexin	U2 HX7027(SOT-23-3)
BSS138	Onsemi	FET2 BSS138(SOT-23-3)
RP2040	Raspberry Pi	U10 RP2040(QFN-56_7x7mm_P0.4mm)
TPS62A02ADRLR	Texas Instruments	U15 TPS62A02ADRLR(SOT-563-6)
PIM201610-1R0MTS00	Cyntec	L7 1.0uH/4.2A/DCR=35mR/20%/2.00x1.60x1.00mm/L2016(PIM201610-1R0MTS00)
DSHP04TS-S	Diptronics	CFG_SET1 DSHP04TS-S
SX5M10.000M20F30TNN	LCSC	CR1 Q10MHz/30ppm/1.62V-3.63V/4P/5x3.2mm(SX5M10.000M20F30TNN_LCSC-C2901522)
LY68S3200SLT	Lyontek	U7 LY68S3200SLT(SOIC-8_150mil)
ZD25WQ16CSIGT	Zetta Device	U8 ZD25WQ16CSIGT(SOIC-8_208mils)
GG0402052R542P	G-NOR	TVS5 NA(GG0402052R542P)
YTS-A016-X	Yite	FPGA_BUT1 YTS-A016-X
1N5819S4	Generic	D1 1N5819S4/SOD123
133MHz	Maxim	For example, they can generate a 48MHz clock which meets the frequency accuracy requirement of the USB interface and a 133MHz maximum speed system clock.