Hi All, I was going to build one of these but thought I'd see if anyone already has parts to sell a completed one. Anyone selling kits or pre-built ones? Thanks!
NAME: QROM type: ROM+RAMROM Size: Not foundBanks: 2Sram Size: Not foundChecksum:DB5D
I've had no problem with dumping N64, SNES, GB games so far with latest cart dumper on github.
Before you do anything, clean the carts. Did game boot successfully on real consoles? If not, keep cleaning. I had one of those old Nintendo game which I had to use fine sand paper to remove rust on contact to get it recognized.
Than, use your tester to make sure that no adjacent pins are connected. If important pins are connected, you can't dump games.
Now in your specific case it sounds more like you have made a soldering mistake somewhere since basically nothing works for you. Get a multimeter and check each and every connection against the schematics: https://github.com/sanni/cartreader/blob/master/pcb/cartreader_schematics.pngsometimes the pcb manufacturer gets a little sloppy and the solder mask is not aligned perfectly and it is possible that the GND plane is exposed and makes contact through solder with a function pin, so you always need to check each and every pin for a short to GND
sanni's cart reader support dumping NP carts too so you should have no problem dumping those carts once you get the problem fixed.(You might need clockgen module and snescic).
most N64 slots sold on Aliexpress actually have a 2.54mm spacing instead of 2.5mm. So you need to make sure that you insert the N64 cartridge perfectly centered or it will not make good contact.
there are two sd modules linked in the parts list, one for standard sized and one for micro sd cards. The micro sd cards read/write a lot slower for some reason. And the full-size sd module is missing a voltage level converter and thus only high quality full-size sd cards seem to work without problems, others will encounter read/write errors. I have designed a full-size sd module with voltage level converter and will upload it once I have tested it.
dumping N64 carts sometimes does not work correctly ever since I optimized the code towards writing N64 repros. I'll need to have a look at that again sometime.
dumping GBA carts can be unreliable as sometimes a byte or two will get dumped incorrectly, I think it was mostly with eeprom save carts if I remember correctly. Flashing repro carts once again works perfectly though.