2 layers
Cart programmer
JiggleSoft/atari2600_cart_prog
Atari 2600 Budget ROM Cartridge, Budget ROM/RAM/Bank Switching Cartridge, Budget Programmer.
7 parts8
2 layers53.3 × 85.1 mm
Rom cart
JiggleSoft/atari2600_cart_prog8Atari 2600 Budget ROM Cartridge, Budget ROM/RAM/Bank Switching Cartridge, Budget Programmer.
- Size
- 53.3 × 85.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 35
- Pads
- 143
- Tracks, vias
- 58, 0
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Jan 2019
- Updated
- 23 Mar 2019
Overview
Rom cart is an open-source printed circuit board by JiggleSoft, from the JiggleSoft/atari2600_cart_prog repository on GitHub. It is a 2-layer board of 53.3 × 85.1 mm with 13 parts on 35 nets, routed with 58 tracks and 0 vias.
It is built around the SST39SF040-70-4C-NHE and 74HCT1G04GW. Its parts include 2 resistors, 2 ICs, 2 connectors, 2 switches and 1 capacitor. It belongs with the retro computing and games and interfaces and adapters boards of this library.
Main components
2
SST39SF040-70-4C-NHE
PLCC-32(11.4x14)0℃~+70℃ 100 Years 100,000 cycles 14MHz 30uA 4.5V~5.5V 4Mbit PLCC-32(11.4x14) NOR FLASH ROHSMicrochip TechnologyNOR FLASH
74HCT1G04GW
TSSOP-5-1.3mm-40℃~+125℃ 1 150mV~400mV 20uA 24ns@4.5V,50pF 2V 4.13V~4.32V 4.5V~5.5V 74HCT 800mV TSSOP-5-1.3mm Inverters ROHSNexperiaInverters
README
README.mdJiggleSoft
atari2600_cart_prog
Atari 2600 Budget Cartridges and Budget Programmer.
Home on GitHub (https://github.com/JiggleSoft/atari2600_cart_prog)
Project Status
- This project is in the initial design stage to allow for testing.
Project Contents Summary
- Atari 2600 Budget ROM Cartridge.
- Target of < $3.00 cost each (PCB and components, excluding shell).
- 4K ROM, manually switchable from 128KB, 256KB, or 512KB (depending on chip installed).
- Atari 2600 Budget ROM/RAM/Bank Switching Cartridge.
- Target of < $6.00 cost each (PCB and components, excluding shell).
- ROM of 128KB, 256KB, or 512KB (depending on chip installed).
- RAM of 128KB (optional installation).
- PLD providing various Bank Switching methods e.g. 8K, 16K, 32K, up to 512KB ROM + RAM options.
- DPC functionality if resources allow.
- Multi-cart boot menu (optional and depends on images installed).
- Atari 2600 Budget Programmer.
- Target of < $15.00 cost each (PCB and components).
- USB CDC Serial Port connection to PC.
- Budget Cartridges (both of those above) can be plugged in directly for programming Atari 2600 ROM images.
- Budget Cartridges (both of those above) can be plugged in directly for dumping the Atari 2600 ROM images.
- Nice to have (if possible):-
- Allow dumping other Atari 2600 cartridge ROMs.
- Allow dumping Atari 7800 cartridge ROMs.
- Allow dumping other platform ROMs.
- Allow programming other platforms cartridges.
- Note:
- The PLD will likely require a separate programmer to flash it.
Contact
- Justin Lane (atari2600@jigglesoft.co.uk)
Repository Contents
- doc/ --- Documentation
- eng/ --- Shared engineering files.
- rom_cart/ - Budget ROM cartridge (WIP).
- cart_programmer/ -- Cartridge Programmer related files (WIP).
- rom_ram_pld_cart/ - Budget ROM/RAM/Bank Switching cartridge (WIP).
- internal_rom/ -- Investigation into the Atari 2600 internal ROM that was never used (incomplete).
Pictures
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | SW_DIP_x04 | Button_Switch_THT:SW_DIP_SPSTx04_Slide_9.78x12.34mm_W7.62mm_P2.54mm | SW1, SW2 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1 |
| 1 | 10K X 8 | Resistor_SMD:R_Cat16-8 | RN1 |
| 1 | 74HCT1G04 | Package_TO_SOT_SMD:SOT-353_SC-70-5_Handsoldering | U2 |
| 1 | CONN_512K_CART_CARD | Conn_Atari_JiggleSoft:Atari_2600_Cartridge_2x12_PCB_Edge | J2 |
| 1 | CONN_A2K6_CART_CARD | Conn_Atari_JiggleSoft:Atari_2600_Cartridge_2x12_PCB_Edge | J1 |
| 1 | Jumper_NC_Small | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | R | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R2 |
| 1 | R470 X 8 | Resistor_SMD:R_Cat16-8 | RN2 |
| 1 | SST39SF040-70-4C-NHE | Package_LCC:PLCC-32_11.4x14.0mm_P1.27mm | U1 |
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Questions
How big is the Rom cart PCB?
It measures 53.3 × 85.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rom cart use?
13 parts, built around the SST39SF040-70-4C-NHE and 74HCT1G04GW. 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 Rom cart KiCad files?
From the JiggleSoft/atari2600_cart_prog repository on GitHub, at the commit this page was made from: the board is rom_cart/eng/kicad/rom_cart/rom_cart.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rom cart design in my own project?
Its repository states no licence, so its author keeps all rights: ask JiggleSoft before reusing the design.