<![CDATA[ChipMusic.org - FS: NTRQ cart]]> 2012-08-25T15:16:50Z PunBB https://chipmusic.org/forums/topic/8194/fs-ntrq-cart/ <![CDATA[Re: FS: NTRQ cart]]> the OP cart is obviously sold, but I can create new carts if needed, pm me if interested in NTRQ

]]> https://chipmusic.org/derekb 2012-08-25T15:16:50Z https://chipmusic.org/forums/post/129027/#p129027 <![CDATA[Re: FS: NTRQ cart]]> hmmm very odd cuz I've had 0 issues with NTRQ on carts

could possibly be related to the speed of the chips you're dropping in, farfetch though

]]> https://chipmusic.org/derekb 2012-08-21T06:41:02Z https://chipmusic.org/forums/post/128178/#p128178 <![CDATA[Re: FS: NTRQ cart]]> derekb wrote:

are you 100% positive your chips are flashed correctly? have you built donors prior to this? You did strip the NES header prior to flashing right?

Yes, yes aaaand yes. I'll try a Zelda cart out of sheer boredom if I can find one for cheap locally.

Here's are some thoughts on the matter from the other thread fwiw. Perhaps there's a simple solution I'm missing here.

ne7 wrote:

It's to do with initialisation code on h/w seems to not be showing on the Famicom boards (as mine are normally built on the famicom h/w) but is showing up on the NES boards this time (we had a little similar issue with PR8/Pulsar like this before but nailed it after some testing! smile

ne7 wrote:

I’m beginning to think this is all tied to the Famicom’s lack of a CIC security chip and differences to the way the two machines initialise data – the reason PR8 might not be resetting is very likely related to this, I’m going to grab LFT next time I see him online and pick his brains (I warned him already hehe) about it as if anyone can shed light on anything h/w related its most probably him *Grin*

Neil; I repeated the steps in my guide and built yet another PR8 cart for Famicom in the interim so the Famicom side of things checks out just fine – we just have to poke around a bit more on the NES side, it's super weird but I'm sure we'll get to the bottom of it smile

Fuck, does this count as crossposting?

]]> https://chipmusic.org/TSC 2012-08-21T04:17:25Z https://chipmusic.org/forums/post/128167/#p128167 <![CDATA[Re: FS: NTRQ cart]]> TSC wrote:

Thanks for the quick reply!

Yes, I am using 27C010 in several donors. I've tried Bard's Tale, Shingen The Ruler, NES Open, Ultima Exodus, and one other I am probably forgetting at the moment - all with the same behavior. I'll test the battery removal next...I never thought of doing that.

I should mention I have similar results when using PR8/Pulsar in donors as well, although they barely even turn on.

I always use Zelda's for donors, fwiw

]]> https://chipmusic.org/derekb 2012-08-20T18:34:56Z https://chipmusic.org/forums/post/128091/#p128091 <![CDATA[Re: FS: NTRQ cart]]> are you 100% positive your chips are flashed correctly? have you built donors prior to this? You did strip the NES header prior to flashing right?

]]> https://chipmusic.org/derekb 2012-08-20T17:47:09Z https://chipmusic.org/forums/post/128082/#p128082 <![CDATA[Re: FS: NTRQ cart]]> Thanks for the quick reply!

Yes, I am using 27C010 in several donors. I've tried Bard's Tale, Shingen The Ruler, NES Open, Ultima Exodus, and one other I am probably forgetting at the moment - all with the same behavior. I'll test the battery removal next...I never thought of doing that.

I should mention I have similar results when using PR8/Pulsar in donors as well, although they barely even turn on.

]]> https://chipmusic.org/TSC 2012-08-20T17:44:08Z https://chipmusic.org/forums/post/128081/#p128081 <![CDATA[Re: FS: NTRQ cart]]> I read somewhere that some SNROM boards (Shinren the ruler was the example i think) behaved strangly with NTRQ. I've built 6 NTRQ carts to date and all have worked without issue aside from dirty contacts requiring a lil jiggling in the slot to get a proper connection. I guess it's possible the SRAM has junk data which is messing up on load, you could try pulling the battery and waiting for the chip to drain. Are you using a 27C010? If you're using a 27C101 the pinout is slightly different, I believe you have to bridge pins 31 and 32 in order for those to work properly but don't quote me on that.

for reference here's this pcb:

pin 31 is lifted but not attached, should've just clipped it

]]> https://chipmusic.org/derekb 2012-08-20T17:36:50Z https://chipmusic.org/forums/post/128080/#p128080 <![CDATA[Re: FS: NTRQ cart]]> OK, so I just tested the NTRQ donor (using NES Open Golf donor cart - NES-SNROM) with the extra wire (connecting pin 31 to hole 2) removed and I'm getting the same behavior as before: erroneous data/crash/clear menu not clearing anything/etc.

The only way I managed to get a donor cart to "work" with NTRQ in the past is to power the nes with the cart inserted, not pushing the cart down, waiting for a flash or two, pushing the cart down with the power still running and powering off/on once rapidly.

If there's a difference in the architecture between NES and Famicom, why would the cart for sale in this thread work on the American NES, while the donors do not? What is the difference between the donor and the one for sale?

Oh, and apologies for hijacking this thread, but hey - more views for your item, right?

]]> https://chipmusic.org/TSC 2012-08-20T17:28:36Z https://chipmusic.org/forums/post/128078/#p128078 <![CDATA[Re: FS: NTRQ cart]]> price would probably be a lil higher than NTRQ because I'm probably just gonna source donors through some JP contacts, rather than go through the whole SNROM > SXROM bit

]]> https://chipmusic.org/derekb 2012-08-20T17:28:13Z https://chipmusic.org/forums/post/128077/#p128077 <![CDATA[Re: FS: NTRQ cart]]> yes

]]> https://chipmusic.org/kitsch 2012-08-20T17:26:17Z https://chipmusic.org/forums/post/128076/#p128076 <![CDATA[Re: FS: NTRQ cart]]> would there be any interest in some PR8/Pulsar carts if I were to construct some?

]]> https://chipmusic.org/derekb 2012-08-20T17:25:26Z https://chipmusic.org/forums/post/128075/#p128075 <![CDATA[Re: FS: NTRQ cart]]> That'd be sweet, man. I'll definitely be in touch!

]]> https://chipmusic.org/Telerophon 2012-08-20T17:10:13Z https://chipmusic.org/forums/post/128073/#p128073 <![CDATA[Re: FS: NTRQ cart]]> Telerophon wrote:
derekb wrote:

Telerophon do you have a band btw? Link me

No, the active chip musicians in Austin are organized into a planning committee and work as a group to book shows; that's what I mean when I say "we" in the context of booking and promoting.

we have a Facebook page and a (currently underused) Twitter (@txchipmusic), and we're about to start working on a website.

I don't really have any formal releases at the moment, personally. I need to fix that. tongue

I'll definitely keep you posted, though!

cool man, let me know if yall ever come down here / need help setting something up down here, I hang out with a bunch of dudes from a regional electronic label

]]> https://chipmusic.org/derekb 2012-08-20T17:07:38Z https://chipmusic.org/forums/post/128072/#p128072 <![CDATA[Re: FS: NTRQ cart]]> TSC wrote:

I'll double check all used donor carts later tonight/test NTRQ, sans wire.

Not that anyone cares, but I gotta say I prefer donor boards over new pcbs, simply because it's one less cart in a landfill/one less cart being produced. There's thousands available, why not use what's already there, you know?

Honestly I prefer donors mainly because I can source them for basically free, whereas if I order an unpopulated board from retrozone I need to also add in a ciclone for the lockout chip, extra chips for mmc1, etc etc etc. Better off just using a board that's already populated, its not like the rewiring for the EPROMs is that over the top. If retrozone was selling boards prepopulated so that you just dropped in chips and went your happy way, then yeah i'd probably use them instead.

Also I don't like that retrozone's NROM boards need two separate types of chips, rather than just using two 27c256 I have to use up a 27c010 too? meh

]]> https://chipmusic.org/derekb 2012-08-20T17:06:59Z https://chipmusic.org/forums/post/128071/#p128071 <![CDATA[Re: FS: NTRQ cart]]> derekb wrote:

Telerophon do you have a band btw? Link me

No, the active chip musicians in Austin are organized into a planning committee and work as a group to book shows; that's what I mean when I say "we" in the context of booking and promoting.

we have a Facebook page and a (currently underused) Twitter (@txchipmusic), and we're about to start working on a website.

I don't really have any formal releases at the moment, personally. I need to fix that. tongue

I'll definitely keep you posted, though!

]]> https://chipmusic.org/Telerophon 2012-08-20T16:44:30Z https://chipmusic.org/forums/post/128070/#p128070