HardLabs

Utracer11.unrouted

j-hoppe·uTracer11·M93X2probe.pcb/utracer11.unrouted.kicad_pcb

Utracer11.unrouted PCB layout, top view — open source AVR/Arduino board by j-hoppe

About the Utracer11.unrouted PCB

Utracer11.unrouted is an open source AVR/Arduino PCB design by j-hoppe, published on GitHub under the BSD-3-Clause license. It is a 4-layer board measuring 132.3 × 214.1 mm, with 128 components from 69 distinct parts.

Its main chip is the Arduino Nano Every, from the AVR/Arduino family. Other key parts include the 74LS138, 74HCT30, 8837, DEC8881 and MAX232. By type, the board carries 36 capacitors, 30 connectors, 26 ICs, 26 resistors, 6 diodes and 2 switches.

From the project

flipchip probe and host GUI to visualize intenral operation of PDP-11 CPU

„uTracer11“ (read: "micro-program-tracer for PDP-11") is a signal probe that is plugged into older UNIBUS PDP-11s.

The CPU state is visualized on a host PC via a graphical user interface (GUI)

It is primarily used for micro-stepping the CPU, as a function demo, repair tool, or for entertainment.

See: https://www.retrocmp.com/tools/utracer11

* gui - main user interface, WxWidgets project Linux/Windows

Main components on the Utracer11.unrouted

74LS13874HCT308837DEC8881MAX232MCP23017-2.074LS86MCP23017-0.0MCP23017-0.2MCP23017-1.0MCP23017-0.1MCP23017-0.374HCT374MCP23017-1.2MCP23017-1.1ULN2803AMCP23017-3.0MCP23017-3.1MCP23017-3.3MCP23017-3.224LC1025Arduino Nano Every

Utracer11.unrouted bill of materials (BOM)

128 components, 69 distinct parts.

QtyPartRefs
1
74LS138
U1
1
74HCT30
U2
1
8837
U3
1
DEC8881
U4
1
MAX232
U5
1
MCP23017-2.0
U6
1
74LS86
U7
1
MCP23017-0.0
U8
1
MCP23017-0.2
U9
1
MCP23017-1.0
U10
1
MCP23017-0.1
U11
1
MCP23017-0.3
U12
2
74HCT374
U13, U14
1
MCP23017-1.2
U15
1
MCP23017-1.1
U16
5
ULN2803A
U17, U18, U19, U20, U21
1
MCP23017-3.0
U22
1
MCP23017-3.1
U23
1
MCP23017-3.3
U24
1
MCP23017-3.2
U25
Show 49 more
QtyPartRefs
1
24LC1025
U26
1
Arduino Nano Every
A1
1
PWR
J1
2
GND
J2, J3
1
UB_DATA
J4
1
UB_PAB
J5
1
UB_ADDR
J6
1
UB_C01
J7
1
UB_MSYN
J8
1
UB_SKBYINT
J9
1
UB_MISC
J10
1
CONN-DEC-DUAL-AB
J11
1
UB_BR
J12
1
UB_BG
J13
1
UB_DMA
J14
1
Arduino AUX
J15
1
Arduino-5V-Power
J16
1
UART
J18
1
KY11-LB M7859.J2
J19
1
KY11-LB M7859.J3
J20
1
CPU M8266.J1
J21
1
CPU M8266.J2
J22
1
KM11.A
J23
1
KM11.B
J24
1
MUD-BG4
J25
1
MUD-BG5
J26
1
MUD-BG6
J27
1
MUD-BG7
J28
1
MUD-NPG
J29
1
BOOT SW.
J30
1
RETURN
J31
1
SACK
JP1
1
Reset
SW1
1
Function
SW2
1
green
D1
1
red
D2
4
1N4148
D3, D4, D5, D6
29
100nF
C1, C2, C3, C4, C5, C7, C8, C10 +21
2
1nF
C6, C9
1
47µF
C16
4
1uF
C17, C18, C19, C20
4
3.3K
R1, R2, R3, R4
2
220
R5, R6
2
383
R7, R8
2
1K
R9, R10
1
22K
R11
1
1K
R12
7
178
RN1, RN2, RN5, RN6, RN9, RN10, RN13
7
383
RN3, RN4, RN7, RN8, RN11, RN12, RN14

Utracer11.unrouted design files

The KiCad project lives in the j-hoppe/uTracer11 repository on GitHub; these links point at the commit this page was built from.

Utracer11.unrouted: common questions

What microcontroller does the Utracer11.unrouted use?

The Utracer11.unrouted is built around the Arduino Nano Every, from the AVR/Arduino family.

How big is the Utracer11.unrouted PCB?

The Utracer11.unrouted measures 132.3 × 214.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Utracer11.unrouted?

128 components, from 69 distinct parts. The full bill of materials is listed on this page.

Where can I download the Utracer11.unrouted design files?

From the j-hoppe/uTracer11 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Utracer11.unrouted design in my own project?

Yes, under the terms of its BSD-3-Clause license, which j-hoppe chose for the repository.

Can I test firmware for the Utracer11.unrouted without the hardware?

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

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