How I got my DSP-1 installed and working.

I couldn't, for the life of me, find a decent write-up on how to do this. So I thought I'd throw this out there for anyone who was having trouble getting this thing going.

I started with a version 1.6 Super Everdrive and a spare Mario Kart.

I removed the DSP1B from my Mario Kart sac cart and the clock generator (on mine, it was a small, white, rectangular block).





I soldered the DPS1 on its designated spot on the Everdrive and noticed the clock generator had no markings at all and I wasn't sure which direction it should be soldered on. I could tell where on the board it should be (on the opposite side of the DSP).



I did notice that it had a small red dot on one side, looked almost like a red marker dot, like the results of the QC department or something. After hours of searching to no avail, I took a shot in the dark and just soldered it in.



I tried loading Mario Kart and never got passed the coin up sound after the Nintendo logo. I tried Pilot Wings and got all the way through the menu but never loaded the first level. So I desoldered the clock generator and soldered it back in the reverse position and had the same results as before. It was obvious that something was wrong.

I needed the 74HCU04 chip that everyone was claiming came inside the Pilot Wings cart. Well, I didn’t use a Pilot Wings cart and my Mario Kart didn't have the 74HCU04 chip. I knew there was a square marked on the Everdrive for the chip, but it wasn't until recently that I had heard that it wasn't optional, you need this to enable the DSP.

So I got to Googling what devices/games would contain the chip and ran across a forum mentioning its existence in the original NES. I just happened to have a couple spare "spring loaded" NES control decks lying around and I cracked one open. Low and behold, there was a 74HCU04 inside.



It took a little while, in fact it took a lot of effort to get this little guy out. After heating and desoldering and heating and desoldering, I got it out and 2 minutes later, it was soldered into its new home in my new Super Everdrive.



I tested every DSP enabled ROM I had and everything works great!





I never did figure out what the deal was with the resistor everyone was talking about. I hope I don't find out later that it was a critical component.

I hope this helps someone. Oh, and if I'm misinforming anyone on this process, please let me know. I just had a hell of a time trying to find a decent walkthrough on this and found next to nothing.

 

See my thread (with pictures) from a while back where Krikzz explains it all:

http://www.assemblergames.com/forums/showthread.php?t=35602

Btw: To find out which way the White Thingie goes in, just trace its connection on the original cart. Its connected just the same way on Krikzz cart.

 

Pretty sure it doesnt matter which way around the clock generator goes

 

Well... better safe then sorry.

 

Pictures added ^

 

You dont need to put anything on the 2 sets of pads, as you used the original part from donor cart.

 

nooo nes was killed :crying:
almost all dsp carts has 74hcu04 inside, but not yours

 

If it makes you feel better KRIKzz, that NES had all kinds of problems. I was keeping it around for parts.:thumbsup:

 

You can buy a 74HCU04 for next to nothing anyway. You could always refit a new one into the NES at a later date.

 

The resistor you have heard about was for the old version of the SNES ED. This new design you don't have to worry about.

 

I thought the DSP-1 was only added in the latest revision?

Or do you mean a resistor that did something else unrelated to the DSP-1?

As the DSP-1 installation also has 2 caps you might need to install.

 

http://www.assemblergames.com/forums/showpost.php?p=494115&postcount=104
This is the earlier version adding DSP

 

So , KRIKzz

I'm gonna crack open my Japanese Mario Cart for parts.

Can you confirm that Japanese Mario Cart has all the parts needed to get DSP-1 chip working on SFC Everdrive?

I don't have NES to kill , only a few Famicoms and I'm not killing it.

 

Just order the part its available on ebay, digikey, mouser, rs components, farnell etc.

take your pick

http://www.ebay.com/itm/INSC-MM74HC...aultDomain_0&hash=item3efa11d2da#ht_500wt_922

 

Ordering parts from Ebay is probably over kill for me since I live in Asia.

Shipping for 1 74HCU04N is like 13 USD and will probably takes 3 weeks to get here.

For 13 USD I can buy around 4 Mario Karts cartridges.

 

You should be able to get them locally. They are an extremely common part in the electronics world.

Ebay and the rest were just examples of how common and easy to get they are. Locally they cost around $0.15 or so

 

Will try my local electronic shop , thanks.

 

i don't know if your mario cart has 74chu04 inside, but almost all dsp carts which i seen has this ic, but some carts may use other chip, like on photos above

 

Ack! Why are people destroying good games? :crying:
I got my DSP from Ballz 3d and it has everything you need including the 4HCU04N.
Payed a whole $5 for it. It's not that rare.




:-( Stop destroying good games. Think of the children!