Re: My hardware project :: GCart 2011
Posted: Thu Dec 19, 2013 4:04 pm
I can hardly say that it is moving along in any acceptable pace. Luckily for me it is a hobby project. I think I have spent like 8 hours / month during 2013. Everything else on my companies, work and politics.
That said. Hopefully I can finish the layout for the junior (internal) during christmas brake ( free until 8/1-2014 ... a first in my life ). The cartridge is next.
The problem has, as always, been to strike a good balance between effort, budget and the need to learn something from this endeavour.
Junior is now single sided SMA mounting (and thus larger at 50mm x 42mm). Reason being to reduce the complexity of the board. On the other hand I have added the option to add RAM for all BLK1-3 and 5. Well actually also 6 and 7. This has also given me a way to fix an annoying flaw in the cartridge design. The DMA could not move data from internal memory to/from external. The board is primarily accessed through wireless lan. The memory onboard is 2MByte of SRAM, addressable in individual 8k chunks.
The cartridge has an IEC connector and I also opted for USB and that the SD card was accessible from the backside. WiFi and Bluetooth is gone, but I kept the ethernet. I also now have access to some serious 3D printers and have opted to do plastics for the cartridge.
Will 2014 be the year this project materialises ... I really hope so.
The pool ... yes it was finished, used and a real burden was lifted from my shoulders. Here it is just before the finishing touches ...
That said. Hopefully I can finish the layout for the junior (internal) during christmas brake ( free until 8/1-2014 ... a first in my life ). The cartridge is next.
The problem has, as always, been to strike a good balance between effort, budget and the need to learn something from this endeavour.
Junior is now single sided SMA mounting (and thus larger at 50mm x 42mm). Reason being to reduce the complexity of the board. On the other hand I have added the option to add RAM for all BLK1-3 and 5. Well actually also 6 and 7. This has also given me a way to fix an annoying flaw in the cartridge design. The DMA could not move data from internal memory to/from external. The board is primarily accessed through wireless lan. The memory onboard is 2MByte of SRAM, addressable in individual 8k chunks.
The cartridge has an IEC connector and I also opted for USB and that the SD card was accessible from the backside. WiFi and Bluetooth is gone, but I kept the ethernet. I also now have access to some serious 3D printers and have opted to do plastics for the cartridge.
Will 2014 be the year this project materialises ... I really hope so.
The pool ... yes it was finished, used and a real burden was lifted from my shoulders. Here it is just before the finishing touches ...