Possible to update GW firmware to .27 or higher ?!

[gilmod714]

Hello,

would it be possible to update the greaseweazle FW to 0.27 or higher ? .. the current .22 is too old that the example is based on.. "greaseweazle.ino" .. the current GW fw is 1.6 i think ..

the reason being .. I'm trying to connect the floppy to WinUAE as amiga drive-bridge plugin , and it complains about the old GW fw.. (it works fine on my stm32 board fw1.6) -- but I have too many RP2040's I'd like to put to use ;)

[jepler]

We'd be happy to see support for newer GW messages added, and when they are added we can bump the compatibility firmware version number.

[montyleib]

Jeff, I think gilmod714 is asking for the Feather Greaseweazle firmware to be updated, which isn't in this repo. Where would one go to help out?

[gilmod714]

YES .. exactly .. Thanks Montyleib ..

It would also be nice (for completeness) to integrate the "Erase" function as well :)

[jepler]

The adafruit greaseweazle-compatible firmware is in this repo: https://github.com/adafruit/Adafruit_Floppy/blob/main/examples/greaseweazle/greaseweazle.ino

[montyleib]

Thanks, Jeff!

I had only found it in keirf's firmware repository, and assumed his is behind this one.

[gilmod714]

This firmware .ino sketch still reporting GW under ver 0.27 though !

[montyleib]

I see 21 (assuming .21) in the code. No one has kept up with keirf, although Jeff has sure been very involved due to his work on Apple floppy code.

I've tried to compare this with keirf's current firmware, and it's done little more than give me headaches. Assuming greaseweazle.ino is modelled after .21, I'll look backward in keirf's code and try to go from there.

(edit) keirf's .31 release is no more understandable to me than his current. I'll diff them to see what he's done.

No promises, though... :)

[gilmod714]

Any efforts to bring up the current firmware above .27 would be very useful I think :) .. 21 is really-really old FW!

Thanks for your efforts in advance montyleib :)

[montyleib]

@ladyada set the firmware version in greaseweazle.ino as 1.0 (lines 91 and 92), which is what the Greaseweazle host tools reports when "gw info" is run. Seems curious that WinUAE reports 'too old' and 'need .27 or greater'. I'm suspicious that the device model that is reported (Adafruit Floppy Generic) is the real issue.

I'm currently comparing the blue pill C code between versions, I still need to wrap my head around a) figuring out the translation C->Python and b) make the changes in Python to match the C from .22... it's making more sense daily. :)

@gilmod714 : are you certain that .22 is what WinUAE thinks greaseweazle.ino is? I have keirf's source from .22 to .31 (which became 1.0)

from keirf's Release Notes:

** v1.0 - 26 December 2021

• Firmware is now released separately from the host tools
• No firmware changes since v0.31 (apart from the version bump)

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[ladyada]

@jepler ^ want to take a look in the next few weeks?

[gilmod714]

@montyleib .. yes, I believe WINUAE thinks that "greaseweazle.ino" is .22 on my RP2040 (I forgot where I saw that exactly, but yeah almost certain that's what it reported, when I was tinkering with it - trying to make it work as a disk plugin)

Thank you for your hard work :) .. and also thank you @jepler & @ladyada