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With skaman's delay(1000) fix I was now able to dump both of my SA-1 games with my Cart Reader V9H.
It still took around 10 tries to unlock the Mini Yonku Shining Scorpion cartridge but in the end it dumped fine.

I did have some success(1L3B-01 PCB works but 1L5B-20 PCB is finicky) with skaman's enhanced code, which I modified to use the pinout of my current shield pcb.

I made a short video: https://www.youtube.com/watch?v=YGsC28IBr2A&t=8m5s

I got it working now too, thanks to you and ofc skaman. :beer: :D Followed your advise and updated the code in the link above. It now takes only 85s to flash a 4MB file instead of 125s like before thanks to flashing both roms in parallel. With the busycheck commented out it takes 33s but ofc you onl...

I can't erase nor write the sector protection flag on the first flash chip. I'm using CMD 0x02 to unlock /WP, both /WP's of two flashchips are connected together and using CMD 0x02 does have an effect on the second flashchip as without it I can't erase the sector protection, but with I can. Also I d...

Simply amazing, big thanks to all of you. :beer: :D The code I'm using right now seems to be doing something wrong though but strangely it only affects the first flashrom. While all works perfectly fine with the second flashrom(0xE0 when in HiRom All mode) for me the first flashrom(0xC0) always lock...

Slightly off-topic but I wrote a 29F032 programmer for the Arduino Mega 2560, it works surprisingly reliable. It also does 29F1610 and 29L3211. You can get Arduino Megas for $6 from China including shipping. Making this probably the cheapest way to program those flashroms. You can find the sketch at...

Not sure if it helps but on the SNES NP cart I do the WR pulses like so: // Arduino running at 16Mhz -> one nop = 62.5ns // Wait till output is stable __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t"); // Pull WE low digitalWr...

Nice, the LH28F004SUT-Z1 datasheet even has some flow charts that are missing from the LH28F800's datasheet.

That would be great. :D More random google finds: - after sending the 128bytes to the MX29F1610 you are supposed to wait 100us according to this application note http://www.prom-electric.ru/data/uploads/datasheets/Macronix/Memory/Parallel%20Flash/AppNotes/29f1610-app.pdf - on page 31 of this MX29GL1...

Some random information I came across while googling: - the official Nintendo Game Boy Dev/Prototype Carts also had Sharp flash memory( Datasheet , Useless but nice to look at decap ) http://abload.de/img/rampart0057vsf2.jpg Source: http://atariage.com/forums/topic/170272-is-this-a-gameboy-proto/ - ...

Is there more info available on how to get the Block Lock Status Bit in the Page Status Register from 0 (Locked for Erase/Write) to 1(Unlocked for Erase/Write) with the Satellaview cart's flash? Is the register itself writable or is there a special command that does unlock the protection? Like "...

Menu + Umi no Nushi Tsuri(LoROM Sram: 64 Kb Size: 16 Mb) + Otogiriso(LoROM Sram: 64 Kb Size: 8 Mb) https://dl.dropboxusercontent.com/u/20912715/snes/NP%20Dumps/00/00menu.JPG https://dl.dropboxusercontent.com/u/20912715/snes/NP%20Dumps/00/0001.JPG https://dl.dropboxusercontent.com/u/20912715/snes/NP%...

Wow so much info, thank you, I read through it three times already and am still amazed. This is one very interesting cartridge.

I tried the SRAM theory, sadly it was a dead end. Even after I flashed both the SRAM and the complete 4MB dump of skaman's Fire Emblem NP cart to my former menu+DerbyStallion98 cart it didn't boot. I also tried listening to the databus with the Arduino but I'm not sure if I'm doing it right. To me i...