pnoyes wrote:
Hello everyone. Peter here. I created Dodo.
It was a big mess of wires, but it is now on a PCB. The breadboard worked at first but over time became very flaky. Here is where I am at:
- The main board is done and tested
- I have prototyped a game pad
- I have a single voice of sound working using the shift register on the 65C22
- Cobbled together a simulator so I can more quickly develop software.
- Deep in game development. In my simulator it is easy to see how many cpu cycles per frame my game is using. I am targeting 20fps on 1mhz so that means I am limited to 50,000 cylces. Right now I am at 60-70k so there is work to do. I am confident I can solve it by rewriting my sprite drawing functions in assembly.
What is left:
- Prototype hooking up an SPI FRAM chip to use as high score storage
- Design 2nd PCB for game buttons and to mount screen on, I will also put FRAM on here if it works out
- Design enclosure and 3D print it (waiting for my Kickstarter Tiko to arrive)
Looks great!
Enjoyed reading about it, thanks for posting.
When you do your controller, are you planning to hack an existing unit, or design from scratch?
I am going the DIY route, keeping to the basic up, down, right, left, and dual fire unit.
Another option is to purchase one of those SNES knockoffs and gut the shift register.
I purchased a lot from EBay once, and added direct wiring. Worked great.
Brad
Brad