nesdev.org

I'd highly reccomend a Willem Programmer if you have the parallel port it requires. Excellent bang for the buck. If not, there are USB models floating around, but they cost more. Either way, great programmer. If I'm not mistaken, EPROMs also require an ultraviolet light thingy to erase. What you'll ...

MetalSlime wrote:What does your full loop look like?

Try enabling the square channel (via $4015) before you make your writes to $4000-$4003.

That was it, thanks!

Honestly, he's right. The only reason I bought them is because I already HAVE a UV light eraser. Flash is easier and generally more cost effective, even with the cheaper UV Light erasers these days that can be found. If you really need a UV Light eraser however, go look on ebay. You also do need a p...

The Willem can erase chips, yes. This is based on it so I assume it should be able to do so. Mind you UV EPROMs like what I use need UV light to be erased, but I only get them because I have a UVLight eraser and they are cheap. Flash and EEPROMs should be easy to erase and burn whatever you want int...

I use the USB Willem because it is cheaper, but you might consider one of these if you don't have a paralell port computer handy:

http://www.mcumall.com/comersus/store/c ... cIndex.asp

Perhaps someone can explain this concept to me, I'm fairly new to the sound part of the NES. I'm following this guide: http://patater.com/gbaguy/day14n.htm I'm trying to generate a looping sweep wave on Square Wave Channel 1. I can do it with a loop, but I am experiencing an odditiy. Wheras in my lo...

If anyone is curious as to my progress and wants to offer tips/tricks (basically tell me what I'm doing inefficinently), here's my latest product. I can move a (dumb) sprite! Yet to test it on a real NES, but my guess is it will work. http://21gunsoftware.com:8080/PRG2.ZIP It's a lot of cut and past...

Beautiful, thanks. Your guys patience seems infinite, and I appreciate it. I'll post my first program when I finish it, promise.

lda #0 tax @clear_ram: sta $00,x sta $0100,x sta $0200,x sta $0300,x sta $0400,x sta $0500,x sta $0600,x sta $0700,x inx bne @clear_ram Thanks for that code snippet. Using my now rudimentary assembly skills, I mostly understand it. You are simply incrementing the x register and storing 0 throughout...

That's it then. I'm starting to write the program in assembler. Pretty sure that with that and some good coding practices, I can get it to work. Baby steps to be sure... But hey, it's a good summer project. I'm familiar with most Higher level langauges, but not assembly. Well let you know how it goe...

The original mario bros roms work, so it isn't hardware... Still, it's odd. It behaves like I want in Nintendulator, but not in Nestopia. In Nestopia, it acts like it does loaded in my dev cart. However, on the PowerPak CF card, it acts like it does in Nintendulator, just like I want. That can't be ...

Oh man, I forgot entirely about those counters... Haha, thought I had pulled them out. They were meant to slow the scroll speed. Don't worry, I'll start with ripping those out. I'll also get those emulators and see if I can't get more consistent results. Actually, I was unaware of the wiki here and ...

I'm going to post the program now. I thought I had it working, but behavior in an emulator and on my devcart are drasticly different. It works fine in an emulator, but just draws a whole bunch of jibberish on a real NES. Try it and you'll see what I mean. It might just be that I used nbasic, but the...

It works now. I had the mirroring set wrong for the board.

Yep, UV light eraser. I'll post the program if this doesn't work, know in 15 minutes. It's really simple.