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Topics by yogi
Posts found: 417-432 of 621
Batsly Adams wrote:I wasn't trying to cause frustration. I thought that the attitude about the clone was a bit lousy and that the energy could be better spent elsewhere if it's motivated by revenge (isn't the PCB Membler's Squeedo design anyway?). I couldn't stop you even if I wanted to.
I'm talking with Kitsch. I'll work on closing up the project with the features that I think are important and you can buy what you want. Choice is good, right?
Didn't really mean to point my 'priate' response directly at you 
just that there is so much bad karma with that guy that I feel 0% guilty looking at his code (if it's even his?). And Yes, building on the Midines concept with a upgrade, I would opt for a Midibox MIOS32 core solution rather then just a clone. ARM processors rulz!
After looking over the fine board photos, yea the the board was designed by Membler, the Squeedo Synth. Just did some Google'n, found a link by Membler to photos of the bare board, front and back, as well as spec sheet for his MicroMapper firmware used on the cart. Looks like he was/is active on NESDev.com
Yogi
Batsly Adams wrote:I just ordered some PCBs to support FaMI, I can't do much in the way of hobby stuff nowadays due to time constraints. Most of FaMI / any other projects I work on are written on vacation days.
Reading from the controller port is flawed due to the behavior in the DPCM hardware, which meant no samples. I wrote a few workarounds but it was at the expense of some features (latency, visual feedback etc). Although the ROM ended up being pretty full featured with control of the 4 basic channels I felt as though it was incomplete if you weren't able to use DPCM. I have a working PCB now that I'll be happy to release once I'm done testing.
Bleo has been invaluable, and I love him dearly.
EDIT: If the Chip Maestro has proven itself to be unsatisfactory then I'll plan to do a short run of these carts based on demand.
YEA Batsly!! I'd love to support your work and if you do offer up boards I would be in for one.
As to the issue of 'hacking' the Midines, all I can say is while I don't priate other people's work, ESPECIALLY within a hobby community, I find it hard to respect Wayfar's rights after he has stomped on mine. I have already paid for a Midines, so I have some right to one copy of the software.
Ness wrote:...About the chip maestro, did I understood yogi weel : no room for improvment on the chip maestro because of "gates"? .
Yes and no: yes as in the 'op codes' that are read by the 2A03 are static logic outputs based on the the inputs on the adr bus, such as 'If A0 & A1 & A2=00, then output XX'. In Jarek's first design he used discrete gates, but he has converted the logic to a HDL file for the CPLD. So within the CPLD all 'gate logic' is synthesized from the generic logic cell fabric but are functionally the same as discrete gates.
The logic within the CPLD can be changed, but to add features on the NES side you would need to: design logic equations for each 'op code' of each line in a program.
I have seen State Machines implemented with PROMs, programed to output different bit patterns at selected address locations, to respond to input bit patterns on the adr pins. Back when u Controllers were far more expensive and difficult to use. The complexity of these designs don't scale up very well.
Yogi
TSC wrote:PR8/Pulsar/NTRQ seem to work without error. Tested using famicom n8 w/ nes/famicom converter on American NES.
OH YEA, this is so good to hear. I've been wanting to know for sure for a very long time, Thanks TSC
Interesting topic! Just a little reluctant to jump in here, but Midines was one of my first chiptune loves ( and disappointment) years ago, that dream ended so very badly 
When the Chip Maestro cart was in the early stages, it looked exciting. So I dug into Jarek's posts about Tsundere hoping to find a replacement for the Midines. http://www.soniktech.com/tsundere/index.php
Jarek's design interfaces an Arduino to the NES' cart port. The uC handles the midi messages and converts the note values to the relevant reg values for 2A03.
The interface consists of a state machine that is driven by the state of address bits A0:A2. Starting at ADR 0000 the state machine generates 'op codes' that are read by the 2A03; they set up a simple loop to read values from the Atmel chip via buffer registers (implemented in the CPLD) and store them to the PSG. A very simple loop 8 bytes long including the data reads!
The Chip Maestro board replaces the Arduino with an ATMega168 chip ( running Arduino firmware ) and the logic gates with a CPLD; Jarek has posted the Arduino code but the Vertilog/VHDL synth file for the CPLD isn't released yet..
All of the note handling is done by the uC, IMO the '168 is underpowered, but all of the transfers are at the speed of the 2A03's instruction cycle. There is alot that can be improved on the uC side, but on the 2A03 side there really isn't much that can be changed, it's not code, it's 'gates'.
yogi
Delek wrote:.... I don't know if Game Gear is compatible 100% with SMS, but always you can use the .vgm export feature and process it to create a ROM for GG.
Yes, AFAIK
The only real diff between the two systems is the display resolution. The SMS/GG pin on the GG cart port flags the VPU to switch resolution to accommodate the SMS code's displays on the LCD. Now this difference may or may not be an issue if someone is writing a native tracker.
As far as PSG, Mem access and mapping the two are the same.
I've been setting up littlescale's SMSM on a GG for a while now, but it's been on hold for a bit.
The GG will run SMS code just fine with the SMS/GG pin set. You need a converter for a SMS cart, but with a GG flash cart you could run the code with just a jumper. As to the board thickness of the GG cart, be careful. I have found that the GG's cart port can be a real pain. I had a lot of problems with a 'New" adaptor that was too thick. And if it's too thin it can lose contact also.
Littlescale's kernel is very basic, just scans the game port and sends incoming values to the PSG regs. The Teensy code can use the USB or a true midi in port, so there are lots of options as far as midi control.
A native tracker would be cool, but a midi interface works for me also!
Yogi
Coming along very nice! Downloaded and will try out soon, Thanks
Yogi
Hi, sounds cool!
Is the project something like the Harmony Cart, or more basic like a 256-in-1 sort of cart? A low cost multi-cart is interesting. I have a Harmony and like the flexibility of the SD based storage, but a low cost basic cart that could store a number of roms would be a plus.
Keep us posted!
Yogi
EDIT: Ok I read your blog, so cool answered some of my questions. Will it be ram based? Interesting!
Thanks DSC. Will have to fire-up the EPROM burner!!
DSC wrote:droNES is great! Playin' with it all day! Pic of my old school cart.
Oh OK, was thinking you were using a flash cart, my bad. Any info on your cart? I did a SMMM cart a while ago (followed the guide @ Hack.it.up), would be cool to have a droNES too.
Well, WELCOME! dj.tuBIG/MaliceX
Lucky YOU, with a SW1000XG! I was hunting for one but settled on a Labway WaveForce clone. So far I'm very happy with it, the XG midi really sounds GOOD. In combination with the OPL core it's like having two cards
Thanks for your links. Was not aware of the hardware OPL support in Taewoong's Daum build; but I see he has included Gulikoza code, seems tailored to running Win9x under DOSBox(?)
I had found a thread:
VOGONS wrote: http://www.vogons.org/viewtopic.php?f=3 … 24#p272233
"
I've been mailing a person who can use it on XP. He told me this:
---------------------------------------------------------------------------
"https://rapidshare.com/files/830132505/Yamaha DS-XG WinXP Driver.zip
I installed this driver over the built-in XP driver. Rebooted. Installed PowerYMF and added legacy support. It asked to reboot again. Copied porttalk.sys to system32/drivers and added porttalk.reg to registry. Rebooted again. I set gulikoza's DOSBox CVS build to use "hardware" OPL mode. And that's it, I start DOSBox and the FM music is played through the card's real OPL3 chip.
I hope this was helpful."
So this looked very promising for Adlib Tracker ][ but yet to try it out.
On Taewoong's page there are links to other VOGONS threads, how-tos for installing Win9x. This got me thinking about a complicated work around: running DOSBox/Win98SE/AdlibTracker][@DOS Prompt. Probability a wacky idea 
Would like to hear ForteMedia examples, I had been considering buying one just to have it ( but grabbing a second Labway/Yammy card seems a better choice).
Yogi
Lik'en IT! Specialty "Home Computer 2", very nice vibe
Oh look at that cover art, very nice cherry on top of another sweet album from Yerzmyey.
DSC wrote:Just purchased! Can't wait to get it on actual hardware!
Oh please update us, been debating over which to buy, PowerPak (when RZone restocks) or Everdrive.
Posts found: 417-432 of 621
ChipMusic.org / Forums / Posts by yogi