/* Imported from Wayback Machine
   Original URL : https://retrobrewcomputers.org/doku.php?id=builderpages:plasmo:crc65:crc65proto:home
   Snapshot date: 2025-02-12
   Generator    : wayback-archiver
*/

==== Table of Contents ====

[[#crc65_rev1_with_prototype_area|CRC65 rev1 with Prototype Area]]

[[#introduction|Introduction]]

[[#design_files|Design files]]

[[#projects|Projects]]

[[#cf_bootstrap_in_cpld|CF bootstrap in CPLD]]

[[#cf_bootstrap_using_gal20v8|CF Bootstrap using GAL20V8]]

[[#small_rom_in_gal22v10|Small ROM in GAL22V10]]

====== CRC65 rev1 with Prototype Area ======

===== Introduction =====

This is the same [[builderpages:plasmo:crc65|CRC65 rev1]] but with 2“x4” of prototype area consists of array of 0.1“ spacing plated through holes.

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=cbe75b&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/crc65/crc65proto/dsc_74961127.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=600&h=388&tok=f5c365&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fcrc65%2Fcrc65proto%2Fdsc_74961127.jpg?600x388|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_crc65_crc65proto_dsc_74961127.jpg}}]]

===== Design files =====

[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:crc65:crc65proto:crc65r1_gerber_proto_rev0.zip|Gerber photoplots]]

Schematic, CPLD design files are same as CRC65 rev1.

===== Projects =====

==== CF bootstrap in CPLD ====

This project explore true ROM-less bootstrap using a [[builderpages:plasmo:crc65:crc65proto:home:state_machine_in_cpld|state machine in CPLD]] to initialize CF disk and execute instructions streaming out of CF disk's data FIFO.

Link to [[http://forum.6502.org/viewtopic.php?f=6&t=6440&start=120#p104306|forum discussion.]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=fd60c8&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/crc65/crc65proto/dsc_74701111.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=300&h=159&tok=33a3ea&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fcrc65%2Fcrc65proto%2Fdsc_74701111.jpg?300x159|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_crc65_crc65proto_dsc_74701111.jpg}}]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=f50e2d&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/crc65/crc65proto/dsc_74711111.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=300&h=164&tok=485f9e&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fcrc65%2Fcrc65proto%2Fdsc_74711111.jpg?300x164|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_crc65_crc65proto_dsc_74711111.jpg}}]]

==== CF Bootstrap using GAL20V8 ====

This project explore true ROM-less bootstraping with state machine in two GAL20V8

Link to [[http://forum.6502.org/viewtopic.php?f=6&t=6440&p=104523#p104523|forum discussion]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=d5cfe8&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/crc65/crc65proto/dsc_74971127_f.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=300&h=202&tok=f3d3a4&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fcrc65%2Fcrc65proto%2Fdsc_74971127_f.jpg?300x202|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_crc65_crc65proto_dsc_74971127_f.jpg}}]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=91fcaf&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/crc65/crc65proto/dsc_74981127_f.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=300&h=202&tok=b26c9a&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fcrc65%2Fcrc65proto%2Fdsc_74981127_f.jpg?300x202|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_crc65_crc65proto_dsc_74981127_f.jpg}}]]

==== Small ROM in GAL22V10 ====

This project is a SBC based on [[builderpages:plasmo:crc65:crc65proto:home:gal22v10_as_rom|32-byte ROM bootstrap code implemented in GAL22V10]].

Link to [[http://forum.6502.org/viewtopic.php?f=6&t=7856|forum discussio]]n.

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=54acb8&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/crc65/crc65proto/dsc_74911125.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=300&h=200&tok=290c99&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fcrc65%2Fcrc65proto%2Fdsc_74911125.jpg?300x200|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_crc65_crc65proto_dsc_74911125.jpg}}]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=4d1d64&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/crc65/crc65proto/dsc_74921125.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=300&h=169&tok=0e5af7&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fcrc65%2Fcrc65proto%2Fdsc_74921125.jpg?300x169|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_crc65_crc65proto_dsc_74921125.jpg}}]]