2 layers40.6 × 110 mm
Europi surface mount
Allen-Synthesis/EuroPi
EuroPi: A reprogrammable Eurorack module based on the Raspberry Pi Pico
92 parts584CC0-1.0
2 layers100 × 70 mm
Logic Analyzer
WheatleyTheCore/Logic-AnalyzerA Logic analyzer build around the MC9S08SH8 microprocessor.
- Size
- 100 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 31
- Pads
- 96
- Tracks, vias
- 233, 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 14 Jan 2020
- Updated
- 22 Jun 2021
Overview
Logic Analyzer is an open-source printed circuit board by WheatleyTheCore, from the WheatleyTheCore/Logic-Analyzer repository on GitHub. It is a 2-layer board of 100 × 70 mm with 24 parts on 31 nets, routed with 233 tracks and 2 vias.
It is built around the L7805. Its parts include 8 capacitors, 6 connectors, 2 ICs, 2 crystals and 1 resistor. It belongs with the sensors and measurement boards of this library.
Main components
1README
README.mdLogic-Analyzer
A Logic analyzer built around the MC9S08SH8 microprocessor.
The PCB was desgned with Kicad, and and firmware was written with Processor Expert.
An interrupt is triggered every time the signal line goes high, incrementing a counter. Each second this counter is read and reset, and the baud is calculated from that reading.
TODO
Current version functions through use of interrupt pin, future version will use of a fast sample rate to handle higher baud rates better. A faster microprocessor will be required for this.
Future versions will also use the smallest bit in the received signal to calculate the baud, so almost any signal will be able to be used to calculate the baud rate(for example 00001000 or 11111110). This also ensures that the line being high or low for over one tick won't trip it up.
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.5mm | H1, H2, H3, H4 |
| 2 | .1 uF | Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm | C2, C4 |
| 2 | 0.1 uF | Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm | C8, C9 |
| 2 | 20 pF | Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm | C5, C7 |
| 1 | 1 MΩ | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 10 k | Potentiometer_THT:Potentiometer_Bourns_3339P_Vertical | RV1 |
| 1 | 10 uF | Capacitor_THT:CP_Radial_D8.0mm_P5.00mm | C1 |
| 1 | 100 uF | Capacitor_THT:CP_Radial_D8.0mm_P5.00mm | C3 |
| 1 | CXO_DIP8 | Oscillator:Oscillator_DIP-8 | X1 |
| 1 | Conn_01x01_Male | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x03_Male | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | Conn_01x16_Male | Display:WC1602A | J4 |
| 1 | Conn_02x03_Counter_Clockwise | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J5 |
| 1 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J3 |
| 1 | Crystal | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | MC9S08SH8xPJ | Package_DIP:DIP-20_W7.62mm | IC1 |
Questions
How big is the Logic Analyzer PCB?
It measures 100 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Logic Analyzer use?
24 parts, built around the L7805. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Logic Analyzer KiCad files?
From the WheatleyTheCore/Logic-Analyzer repository on GitHub, at the commit this page was made from: the board is kicad/LogicAnalyzer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Logic Analyzer design in my own project?
Its repository states no licence, so its author keeps all rights: ask WheatleyTheCore before reusing the design.
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