{ "guild": { "id": "1361349522684510449", "name": "wafer.space Community", "iconUrl": "2025-12_media/fb143eaa45770cbb40493d09b625e98b-09FD1.png" }, "channel": { "id": "1409664140196188251", "type": "GuildTextChat", "categoryId": "1409664731760955403", "category": "\uD83D\uDCD0 - Designing", "name": "\uD83D\uDCBB-digital", "topic": null }, "dateRange": { "after": "2025-11-30T23:59:59.999+00:00", "before": "2026-01-01T00:00:00+00:00" }, "exportedAt": "2026-07-08T07:21:21.2514394+00:00", "messages": [ { "id": "1454559562727165962", "type": "Default", "timestamp": "2025-12-27T19:40:24.164+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "given how big GF's SRAM blocks are at the small end (64 words is half the size of 512!), do you think it'd end up being more area-efficient to just use registers/flip flops for small \"sram-like\" banks? say 16 words / 128 bits?", "author": { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] }, { "id": "1454560511696830679", "type": "Default", "timestamp": "2025-12-27T19:44:10.416+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "just criminal \uD83D\uDE04", "author": { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, "attachments": [ { "id": "1454560511449628874", "url": "2025-12_media/image-E88FB.png", "fileName": "image.png", "fileSizeBytes": 24887 } ], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [ { "id": "", "name": "\uD83D\uDE04", "code": "smile", "isAnimated": false, "imageUrl": "2025-12_media/1f604-BF863.svg" } ] }, { "id": "1454562609457270929", "type": "Default", "timestamp": "2025-12-27T19:52:30.561+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "(suppose it's easy enough to try it out heh)", "author": { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] }, { "id": "1454575734092730455", "type": "Default", "timestamp": "2025-12-27T20:44:39.718+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "You can just take the are of a FF and multiply it and see how close you are.", "author": { "id": "596068704471482370", "name": "246tnt", "discriminator": "0000", "nickname": "tnt", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/88d17af9d19ab43565b0c46751ef7d12-DFEE5.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] }, { "id": "1454575912535457874", "type": "Default", "timestamp": "2025-12-27T20:45:22.262+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "For wide shallow mem, the muxing/addr decode won't be too bad so it's a good first rough estimate.", "author": { "id": "596068704471482370", "name": "246tnt", "discriminator": "0000", "nickname": "tnt", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/88d17af9d19ab43565b0c46751ef7d12-DFEE5.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] }, { "id": "1454626774779695134", "type": "Default", "timestamp": "2025-12-28T00:07:28.766+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "aha ok. so with some generous assumptions on the overhead plumbing, a 16x8 might looks something like this (albeit witih flexibility to smoosh into odd corners due to being not a macro block)", "author": { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, "attachments": [ { "id": "1454626774448341063", "url": "2025-12_media/image-AB3D7.png", "fileName": "image.png", "fileSizeBytes": 21416 } ], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] }, { "id": "1454691750437191752", "type": "Default", "timestamp": "2025-12-28T04:25:40.17+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "Have you seen: https://github.com/AUCOHL/DFFRAM\nTheir approach is to create a macro block containing standard cells for different memory configurations. This can be more dense than just having a large FF based RAM along with your RTL, and in theory speeds up synth/PnR. I'd suspect the final QoR ends up slightly worse.", "author": { "id": "274535015969456128", "name": "greg.hashtag.9468", "discriminator": "0000", "nickname": "Greg", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/fb1d1a9872c8ef9ce08855c75f2963a7-A225D.png" }, "attachments": [], "embeds": [ { "title": "GitHub - AUCOHL/DFFRAM: Standard Cell Library based Memory Compiler...", "url": "https://github.com/AUCOHL/DFFRAM", "timestamp": null, "description": "Standard Cell Library based Memory Compiler using FF/Latch cells - AUCOHL/DFFRAM", "color": "#1E2327", "thumbnail": { "url": "2025-12_media/DFFRAM-01085", "width": 1200, "height": 600 }, "images": [], "fields": [], "inlineEmojis": [] } ], "stickers": [], "reactions": [ { "emoji": { "id": "", "name": "\uD83D\uDC40", "code": "eyes", "isAnimated": false, "imageUrl": "2025-12_media/1f440-6C64D.svg" }, "count": 1, "users": [ { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" } ] } ], "mentions": [], "inlineEmojis": [] }, { "id": "1454691970017660929", "type": "Default", "timestamp": "2025-12-28T04:26:32.522+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "Might be handy for size comparisions", "author": { "id": "274535015969456128", "name": "greg.hashtag.9468", "discriminator": "0000", "nickname": "Greg", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/fb1d1a9872c8ef9ce08855c75f2963a7-A225D.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] }, { "id": "1454894742516269076", "type": "Default", "timestamp": "2025-12-28T17:52:17.253+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "oh awesome, I had not seen that. cheers for the link!", "author": { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] }, { "id": "1455387744519065691", "type": "Default", "timestamp": "2025-12-30T02:31:18.09+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "@BreakingTaps - https://docs.google.com/spreadsheets/d/1fW5ecBsLSec4hXBMaOjMUHQGslm4y-QUILgrxqS8MpA/edit?gid=0#gid=0", "author": { "id": "169786952432746498", "name": "mithro_", "discriminator": "0000", "nickname": "Tim 'mithro' Ansell", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/9679bb77da48d47c905b398d98a83780-75B68.png" }, "attachments": [], "embeds": [ { "title": "GF180MCU SRAM Sizing", "url": "https://docs.google.com/spreadsheets/d/1fW5ecBsLSec4hXBMaOjMUHQGslm4y-QUILgrxqS8MpA/edit?gid=0", "timestamp": null, "description": "", "thumbnail": { "url": "2025-12_media/AHkbwyJoFG8TDUxYDGXsHLp06bFE4p8DK_Ok7xLij_-F9622", "width": 1200, "height": 630 }, "images": [], "fields": [], "inlineEmojis": [] } ], "stickers": [], "reactions": [], "mentions": [ { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" } ], "inlineEmojis": [] }, { "id": "1455387905722679440", "type": "Default", "timestamp": "2025-12-30T02:31:56.524+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "@BreakingTaps - I believe @Tim Edwards's 3v3 SRAM is quite a bit smaller?", "author": { "id": "169786952432746498", "name": "mithro_", "discriminator": "0000", "nickname": "Tim 'mithro' Ansell", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/9679bb77da48d47c905b398d98a83780-75B68.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [ { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, { "id": "1365118310701600900", "name": "rtimothyedwards_19428", "discriminator": "0000", "nickname": "Tim Edwards", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/6bcc8e61db497b620550682309ace5d5-D89B4.png" } ], "inlineEmojis": [] }, { "id": "1455390134244606082", "type": "Default", "timestamp": "2025-12-30T02:40:47.845+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "@BreakingTaps : One reason the GF SRAMs don't scale well is that they all contain the same 10-bit address decoder and sense amps designed for a 128-row array.", "author": { "id": "1365118310701600900", "name": "rtimothyedwards_19428", "discriminator": "0000", "nickname": "Tim Edwards", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/6bcc8e61db497b620550682309ace5d5-D89B4.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [ { "emoji": { "id": "", "name": "\uD83D\uDC80", "code": "skull", "isAnimated": false, "imageUrl": "2025-12_media/1f480-94524.svg" }, "count": 1, "users": [ { "id": "228329196504481793", "name": "nxmq99", "discriminator": "0000", "nickname": "nxmq99", "color": null, "isBot": false, "avatarUrl": "2025-12_media/a894465ce64c0d99a11e309c80c403db-DA6C3.png" } ] } ], "mentions": [ { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" } ], "inlineEmojis": [] }, { "id": "1455608224815382560", "type": "Default", "timestamp": "2025-12-30T17:07:24.689+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "oof \uD83D\uDE04", "author": { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, "attachments": [], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [ { "id": "", "name": "\uD83D\uDE04", "code": "smile", "isAnimated": false, "imageUrl": "2025-12_media/1f604-BF863.svg" } ] }, { "id": "1455665497084531075", "type": "Default", "timestamp": "2025-12-30T20:54:59.462+00:00", "timestampEdited": null, "callEndedTimestamp": null, "isPinned": false, "content": "generated a few latch and dff banks using dffram, neat project! latches were consistently 10-15% smaller than dff, and as expected they are all quite a bit bigger than the foundry optimized banks. Not really a fair comparison, will probably run some tests comparing it against a dumb register array since that's a lot closer to the use case", "author": { "id": "384390069412429834", "name": "polyfractal", "discriminator": "0000", "nickname": "BreakingTaps", "color": null, "isBot": false, "roles": [], "avatarUrl": "2025-12_media/8d8c1d8b8ad51d6cdb1a47512c39b297-42908.png" }, "attachments": [ { "id": "1455665495347826894", "url": "2025-12_media/image-7646F.png", "fileName": "image.png", "fileSizeBytes": 28098 }, { "id": "1455665495700279509", "url": "2025-12_media/image-A5ADE.png", "fileName": "image.png", "fileSizeBytes": 76330 }, { "id": "1455665496954241187", "url": "2025-12_media/chip_top_black-1778D.png", "fileName": "chip_top_black.png", "fileSizeBytes": 6373100 } ], "embeds": [], "stickers": [], "reactions": [], "mentions": [], "inlineEmojis": [] } ], "messageCount": 14 }