Games not save

[CristianCG86]

Hi!!

I loved this project. I have been looking for something like this for a long time, thank you.

But I tried saving system with the games Phantasy Star IV and Tänzer, but they didn't save my game. I have checked all the assembly, the position of the components, the position of the jumper, but I don't see any failure in the assembly. I loved this project. I have been looking for something like this for a long time, thank you.

But I have tried saving in FRAM and with the games Phantasy Star IV and Beyond Oasis, but they didn't save my game. I have checked all the assembly, the position of the components, the position of the jumper, but I don't see any failure in the assembly. Has it also happened to you?

Regards

[soniccd123]

Hey!

About Beyond Oasis specifically, did you soldered the jumper to >2MB position? It should work, I've made a repro myself and been playing it.

About Phantasy Star IV and Tänzer, never tested them, maybe try diferent jumper positions, some games, even though being <2MB in size, use the same save system as games bigger than 2MB.

Also, be sure that the FRAM chip is correctly soldered, try testing its pins continuity, I've had problems with saving before because the chip had one pin that was not making contact.

[12manu12]

Hi, i am testing with this pcbs and I have the same, testes with beyond Oasis (Story of Thor) and the game not save.
Did you manage to fix it and make it work?

I used 74LS139N instead of 74HC139. Can this be mixed with 74HC74 or do you need 74LS74 to work as well?
The FRAM used is FM18W08.
The jumper has pins 2 and 3 connected on the back of the board.
I attach a photo.