ganymede icon indicating copy to clipboard operation
ganymede copied to clipboard

rev1 schematic wrong crystal value

Open ObviousInRetrospect opened this issue 4 years ago • 5 comments

I Built a rev1 an discovered that the schematic shows a 8mhz crystal but the firmware is configured for a 16mhz crystal (which matches the jpeg). No source files in the repo so I can't easily send a pull request with the correction.

Attaching a patch to configure the mcu for an 8mhz crystal in case anyone else repeats my error (having fixed the problem in software I wasn't motivated to replace the crystal). 8mhz.txt

Would you consider adding at least the schematic and preferably the design files for rev3 to the repo? It's a nice keyboard. Given the components that lack silkscreen it would have been easier to assemble with access to the board files.

ObviousInRetrospect avatar Jul 12 '20 01:07 ObviousInRetrospect

Sorry about this @ObviousInRetrospect ! I didn't have enough 8MHz crystals so I switched to 16 MHz crystals at some pint.

It's a very important call out so I'll leave the issue open for anybody else that follows your path.

nicolai86 avatar Jan 27 '21 04:01 nicolai86

also let me fix the missing schematics. another nice call out.

nicolai86 avatar Jan 27 '21 04:01 nicolai86

https://github.com/nicolai86/ganymede/commit/9c96c2d28d5396f54fbc986f7e1ca9513a758c81 adds the schematic for rev2.

nicolai86 avatar Jan 27 '21 04:01 nicolai86

https://github.com/nicolai86/ganymede/commit/9909a344b8d5b8e749dde967682d227af309a690 adds the schematic for rev3

nicolai86 avatar Jan 27 '21 04:01 nicolai86

the design files for rev3 are already checked in - if you refer to the gerber files. I can send you the eagle files separately if you like.

nicolai86 avatar Jan 27 '21 04:01 nicolai86