2 layers74.4 × 51.2 mm
Esp32-wroom timer
AlessandroAU/Chorus32-ESP32LapTimer
This is an ESP32 port of the popular Chorus RF Laptimer
66 parts102GPL-3.0
2 layers20.3 × 38.1 mm
Dodgypla
desaster/c64-dodgypla30Commodore 64 PLA replacement
- Size
- 20.3 × 38.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 43
- Pads
- 86
- Tracks, vias
- 186, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 29 Jan 2018
- Updated
- 30 Jan 2018
Overview
Dodgypla is an open-source printed circuit board by desaster, from the desaster/c64-dodgypla repository on GitHub. It is a 2-layer board of 20.3 × 38.1 mm with 10 parts on 43 nets, routed with 186 tracks and 0 vias.
It is built around the XC9536XL-5VQG44C and AMS1117. Its parts include 5 connectors, 3 capacitors and 2 ICs. It belongs with the retro computing and games boards and the FPGA and CPLD boards of this library.
Main components
2README
README.mdPLA replacement for C64.
Based on the work by skoe:
https://bitbucket.org/skoe/pla http://skoe.de/docs/c64-dissected/pla/c64_pla_dissected_a4ds.pdf
This design uses the Xilinx XC9536XL, which has 5V tolerant inputs essential for operation with the Commodore 64.
As opposed to skoe's design, the required CASRAM delay is implemented in Verilog instead of using additional components.
This project includes:
- A Xilinx ISE project written in Verilog for Xilinx XC9536XL
- A KiCad project including a board designed for home etching
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 3.3uF | Capacitors_SMD:C_0805 | C1, C2 |
| 1 | 0.1uF | Capacitors_SMD:C_0603 | C3 |
| 1 | AMS1117 | TO_SOT_Packages_SMD:SOT-223-3Lead_TabPin2 | U1 |
| 1 | PAD_TCK | desaster_footprints:testpad_1.6mm | J2 |
| 1 | PAD_TDI | desaster_footprints:testpad_1.6mm | J5 |
| 1 | PAD_TDO | desaster_footprints:testpad_1.6mm | J4 |
| 1 | PAD_TMS | desaster_footprints:testpad_1.6mm | J3 |
| 1 | PLA_Conn | Housings_DIP:DIP-28_W15.24mm_Socket | J1 |
| 1 | XC9536XL-5VQG44C | dodgyPLA_footprints:LQFP-44_10x10mm_Pitch0.8mm | U2 |
Questions
How big is the Dodgypla PCB?
It measures 20.3 × 38.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dodgypla use?
10 parts, built around the XC9536XL-5VQG44C and AMS1117. 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 Dodgypla KiCad files?
From the desaster/c64-dodgypla repository on GitHub, at the commit this page was made from: the board is kicad/dodgypla.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dodgypla design in my own project?
Its repository states no licence, so its author keeps all rights: ask desaster before reusing the design.
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