paulrickards on Nostr: Then burned it to the W27C512 EEPROM. Then I prototyped the board with jumpers to a ...
Then burned it to the W27C512 EEPROM.
Then I prototyped the board with jumpers to a breadboard and tried it to see if we can at least fool the MiniPRO into thinking the 27C512 is a 6309 (equiv).
Happy to report that it works so I’ve at least swizzled the pins in the right order! Won’t know for sure until it’s in circuit but it’s promising.
#AppleLisaClone #RetroComputing
Published at
2023-08-31 13:47:23Event JSON
{
"id": "1d6419d51eee3507a0f9df9fe3466e5c4b5fd46545cd0e820dd8a12f77b0599a",
"pubkey": "b0a11a6125c511239cd7a0f1ea8c4eea15a57707dfdd9ef57e27cc22f46aea77",
"created_at": 1693489643,
"kind": 1,
"tags": [
[
"e",
"92a5a128f96e3713e79135779fdee1ee11228bc42f545f2d8f00848d7d84b2b6",
"wss://relay.mostr.pub",
"reply"
],
[
"t",
"applelisaclone"
],
[
"t",
"retrocomputing"
],
[
"proxy",
"https://mastodon.social/users/paulrickards/statuses/110984537282696782",
"activitypub"
]
],
"content": "Then burned it to the W27C512 EEPROM. \n\nThen I prototyped the board with jumpers to a breadboard and tried it to see if we can at least fool the MiniPRO into thinking the 27C512 is a 6309 (equiv).\n\nHappy to report that it works so I’ve at least swizzled the pins in the right order! Won’t know for sure until it’s in circuit but it’s promising. \n\n#AppleLisaClone #RetroComputing\n\nhttps://files.mastodon.social/media_attachments/files/110/984/522/850/091/641/original/466db951020cb621.jpeg\n\nhttps://files.mastodon.social/media_attachments/files/110/984/523/044/091/186/original/50d25855f9beec5e.jpeg",
"sig": "c1e4534e25dd859bb453e5ada9487164f071a5684b214b407eb7f073ba8003ee95278f651de8abe0725386a2daad4339d223593c33ea936db63ccae47c87a4dc"
}