kodak80 H4 build (x2)
Re: kodak80 H4 build (x2)
Nice work @kodak80
Re: kodak80 H4 build (x2)
@Icky , @exxos must of missed the gal code for the i.44 floppy. Is it obtainable?
Re: kodak80 H4 build (x2)
With the 1.44mb IC now working, I believe that the FlashFloppy Gotek firmware has a setting in FF.CFG for setting pin 2 based on floppy density. That said, my initial testing only shows 5v on pin 2 with both 720k and 1.44mb floppy images mounted. If I can figure this out, then I can wire the output from pin 2 to the JP18 bottom pin to feed this into the 1.44mb IC.
pin02 = auto* | nc | low | high | rdy | nrdy | dens | ndens | chg | nchg
• Manually assign an output signal (Gotek->host) to floppy interface pin 2
• auto: Automatically determined from interface = setting
• nc: Unused / No Connection
• low, high: Constant low (0v) or high (5v) voltage
• rdy, nrdy: Drive ready, or logical complement
• dens, ndens: Density mode (HD = 0v), or logical complement
• chg, nchg: Disk changed, or logical complement
pin02 = auto* | nc | low | high | rdy | nrdy | dens | ndens | chg | nchg
• Manually assign an output signal (Gotek->host) to floppy interface pin 2
• auto: Automatically determined from interface = setting
• nc: Unused / No Connection
• low, high: Constant low (0v) or high (5v) voltage
• rdy, nrdy: Drive ready, or logical complement
• dens, ndens: Density mode (HD = 0v), or logical complement
• chg, nchg: Disk changed, or logical complement
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Re: kodak80 H4 build (x2)
I am curious as to what jed file was used for the the 1.44 mb floppy is it the ua2 file for the mega ste or do you have a zip of it thank you
Tom
Tom
Re: kodak80 H4 build (x2)
Okay, I now have my Gotek outputting on pin 2 4.88v and 0.006v when 720kb and 1.44mb floppy images are mounted. Had to update FlashFloppy to v2.14 for the pin 2 setting in FF.CFG to work with density.
Now when I connect pin 2 from the Gotek to the JP18 this stops the Gotek working so will need to do more testing to see what is happening.
Now when I connect pin 2 from the Gotek to the JP18 this stops the Gotek working so will need to do more testing to see what is happening.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Re: kodak80 H4 build (x2)
I have now managed to get the Gotek (with FlashFloppy firmware v2.14) working with 720kb and 1.44mb floppy images. FlashFloppy FF.CFG pin02 = ndens reverses the voltage output to match the H4 and I have switched between the different size floppy images on-the-fly and they work fine. So with the feed from the Gotek pin 2 to JP18 bottom pin (closest the keyboard) everything works fine.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Re: kodak80 H4 build (x2)
cool
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Re: kodak80 H4 build (x2)
Well done, any chance of a step by step instruction @kodak80 when you get a mo?
If it ain't broke, test it to Destruction.
Re: kodak80 H4 build (x2)
Just wanted to share the final DMA H4 fix PCB in place. The previous images show the IC in the wrong place on the PCB.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Re: kodak80 H4 build (x2)
Will work on this. Will create a new topic.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review