============================================================== Guild: wafer.space Community Channel: 𐦂𖨆𐀪𖠋 - Friends / tinytapeout Topic: Current shuttle - Tiny Tapeout GF 0p2 - [discord](https://discord.com/channels/1009193568256135208/1422290927816540402) - [webpage](https://app.tinytapeout.com/shuttles/ttgf0p2) After: 2026-10-31 11:59 p.m. Before: 2026-12-01 12:00 a.m. ============================================================== [2026-11-01 10:32 a.m.] TTBot#6027 New tapeout: Shlomo Abrams submitted Asynchronous FIFO (https://github.com/ShlomoAbrams/tt-fifo) {Embed} https://github.com/ShlomoAbrams/tt-fifo GitHub - ShlomoAbrams/tt-fifo Contribute to ShlomoAbrams/tt-fifo development by creating an account on GitHub. [2026-11-03 4:24 a.m.] TTBot#6027 New tapeout: neev-shah-s22 submitted AquaFuse-1: fish-presence wake gate (https://github.com/neev-shah-s22/aquafuse1-tt) {Embed} https://github.com/neev-shah-s22/aquafuse1-tt GitHub - neev-shah-s22/aquafuse1-tt: AquaFuse-1: sensor-direct fish... AquaFuse-1: sensor-direct fish-presence wake gate for Tiny Tapeout SKY130 (8x4) - neev-shah-s22/aquafuse1-tt 2026-11_media/aquafuse1-tt-1E1D0 [2026-11-03 12:59 p.m.] TTBot#6027 New tapeout: @Leo Moser (mole99) submitted Tiny FABulous FPGA (BOAT 26 version) (https://github.com/mole99/tt-fabulous-boat-26) {Embed} https://github.com/mole99/tt-fabulous-boat-26 GitHub - mole99/tt-fabulous-boat-26: A tiny FABulous FPGA for BOAT 26 A tiny FABulous FPGA for BOAT 26. Contribute to mole99/tt-fabulous-boat-26 development by creating an account on GitHub. 2026-11_media/tt-fabulous-boat-26-A935B {Reactions} 💜 [2026-11-04 7:28 a.m.] TTBot#6027 New tapeout: @tnt submitted tnt's variant of GF180mcu mini-MOSbius (https://github.com/smunaut/ttgf-mini-mosbius) {Embed} https://github.com/smunaut/ttgf-mini-mosbius GitHub - smunaut/ttgf-mini-mosbius: tnt's take on Mini-MOSbius port... tnt's take on Mini-MOSbius ported to GF180mcu TT shuttles - smunaut/ttgf-mini-mosbius 2026-11_media/ttgf-mini-mosbius-21CE8 [2026-11-04 5:38 p.m.] TTBot#6027 New tapeout: @RebelMike submitted TinyQV Risc-V SoC (https://github.com/MichaelBell/ttboat26-tinyQV) {Embed} https://github.com/MichaelBell/ttboat26-tinyQV GitHub - MichaelBell/ttboat26-tinyQV: TinyQV - Crowdsourced Risc-V ... TinyQV - Crowdsourced Risc-V SoC for TT Best of all Time '26 - MichaelBell/ttboat26-tinyQV 2026-11_media/ttboat26-tinyQV-138E4 [2026-11-05 1:24 a.m.] TTBot#6027 New tapeout: Ihsan Salari submitted Charge-Pump PLL (https://github.com/ihsan-sa/ece298a-pll) {Embed} https://github.com/ihsan-sa/ece298a-pll GitHub - ihsan-sa/ece298a-pll: ECE 298A charge-pump PLL (Tiny Tapeo... ECE 298A charge-pump PLL (Tiny Tapeout, GF180MCU). Contribute to ihsan-sa/ece298a-pll development by creating an account on GitHub. 2026-11_media/ece298a-pll-E059E [2026-11-05 11:54 a.m.] TTBot#6027 New tapeout: Amishi, Keshav submitted TCPU_8 (https://github.com/keshav-off/CPU8_LNMIIT_01_gf) {Embed} https://github.com/keshav-off/CPU8_LNMIIT_01_gf GitHub - keshav-off/CPU8_LNMIIT_01_gf: Submission template for Tiny... Submission template for Tiny Tapeout GF180 (wafer.space) shuttles - Verilog HDL Projects - keshav-off/CPU8_LNMIIT_01_gf 2026-11_media/CPU8_LNMIIT_01_gf-F4C1F [2026-11-06 4:33 p.m.] TTBot#6027 New tapeout: Rishabh Agrawal, Ankit Mawle submitted CL4_LNMIIT_05 (https://github.com/Rishabh-ece/CL4_LNMIIT_05_gf) {Embed} https://github.com/Rishabh-ece/CL4_LNMIIT_05_gf GitHub - Rishabh-ece/CL4_LNMIIT_05_gf: Submission template for Tiny... Submission template for Tiny Tapeout GF180 (wafer.space) shuttles - Verilog HDL Projects - Rishabh-ece/CL4_LNMIIT_05_gf 2026-11_media/CL4_LNMIIT_05_gf-E0048 [2026-11-07 7:19 a.m.] TTBot#6027 New tapeout: Maohan Sun submitted RO array for variation and BTI aging (https://github.com/maohansun/-tt-gf180-ro-aging) {Embed} https://github.com/maohansun/-tt-gf180-ro-aging GitHub - maohansun/-tt-gf180-ro-aging: Ring-oscillator array for pr... Ring-oscillator array for process variation and BTI aging on GF180MCU - maohansun/-tt-gf180-ro-aging 2026-11_media/-tt-gf180-ro-aging-39146 [2026-11-09 12:16 p.m.] TTBot#6027 ✅ mattvenn reported @algofoogle (Anton Maurovic)'s [Ring osc on VGA](https://www.tinytapeout.com/chips/ttgf0p2/tt_um_algofoogle_vgaringosc) as working: The rings run from 23.7 MHz (161 stages) to 220.5 MHz (3 stages); the fixed 5× inv_1 ring runs at about 320 MHz. Period fits T = 0.240 ns × N + 4.19 ns: about 120 ps per inv_2 stage (T = 2·N·t_pd) plus about 4.2 ns fixed loop overhead (tap multiplexer and clock buffer). uio[1] (clksel2[1]) wasn't working so we couldn't test the 5 × inv_4 ring {Embed} https://www.tinytapeout.com/chips/ttgf0p2/tt_um_algofoogle_vgaringosc 614 Ring osc on VGA - Tiny Tapeout VGA display visualisation of a ring oscillator doing work 2026-11_media/social-preview-BB690 {Reactions} 🎉 [2026-11-09 2:19 p.m.] TTBot#6027 🔍 smunaut reported @urish's [Oscillating Bones](https://www.tinytapeout.com/chips/ttgf0p3/tt_um_oscillating_bones) as partially working: It oscillates at 127 MHz however it's not visible on the digital pins at all. The load from the analog external connection on the output inverter is too great, reducing the amplitude greatly and it's not enough for the digital logic that follows. You can see a tiny ( ~ 100 mV ) signal on the analog pin . If you inject an external bias through that pin to put it in the "right" zone, you can get some life out of the digital divider but barely and inconsistent. {Embed} https://www.tinytapeout.com/chips/ttgf0p3/tt_um_oscillating_bones 294 Oscillating Bones - Tiny Tapeout A stylish SkullFET ring oscillator (~120 MHz) with an 8-bit /2../256 divider 2026-11_media/social-preview-6EA00 [2026-11-09 5:37 p.m.] TTBot#6027 ✅ smunaut reported @tnt's [tnt's recreation of a 555 on GF180mcu](https://www.tinytapeout.com/chips/ttgf0p3/tt_um_tnt_gf_555) as working: Works as designed. Both the one exposed entirely on external pins and the one configured as on-chip oscillator. The on-chip one is around 975 kHz and 67% duty cycle. I tested the external one using 4.7n cap, 0.5k / 1k resistors and got 151 kHz at 72.7% duty cycle. {Embed} https://www.tinytapeout.com/chips/ttgf0p3/tt_um_tnt_gf_555 103 tnt's recreation of a 555 on GF180mcu - Tiny Tapeout Just a simple classic timer IC re-imagined 2026-11_media/social-preview-F7905 [2026-11-09 6:13 p.m.] TTBot#6027 ✅ smunaut reported @algofoogle (Anton Maurovic)'s [algofoogle analog stuff](https://www.tinytapeout.com/chips/ttgf0p3/tt_um_algofoogle_gf_analog) as working: Seems to work fine. Tested only the analog VCO control since there was no instructions for the DAC controlled one. Oscillates ( very slowly ) even at 0V. About 1.4 MHz at 0.55V. 167 MHz at 1.5V and roughtly 416 MHz at 3.3V. {Embed} https://www.tinytapeout.com/chips/ttgf0p3/tt_um_algofoogle_gf_analog 37 algofoogle analog stuff - Tiny Tapeout Some analog and custom layout experiments in gf180mcuD for ttgf0p3 (the TT GF 1st analog experimental shuttle) 2026-11_media/social-preview-2C5C6 {Reactions} 🤩 [2026-11-09 6:33 p.m.] TTBot#6027 ✅ smunaut reported @Matt Venn's [GF R2R DAC](https://www.tinytapeout.com/chips/ttgf0p3/tt_um_gf_r2r_dac) as working: Works ( tested the sine generator mode ). Shows ~ 3 LSBs non-monotonicity in the middle of the range. {Embed} https://www.tinytapeout.com/chips/ttgf0p3/tt_um_gf_r2r_dac 35 GF R2R DAC - Tiny Tapeout 8 bit R2R DAC 2026-11_media/social-preview-0C1C7 {Reactions} 👍 [2026-11-09 9:50 p.m.] TTBot#6027 ✅ smunaut reported @htamas's [MoM capacitor](https://www.tinytapeout.com/chips/ttgf0p3/tt_um_htfab_momcap) as working: Measured at 112 pF . Measure setup is looking at the time to rise to 2.5V through a 47k resistor and compare the dummy terminal vs the active terminal. Dummy measured at 38.7 pF and Active measured at 151.6 pF {Embed} https://www.tinytapeout.com/chips/ttgf0p3/tt_um_htfab_momcap 39 MoM capacitor - Tiny Tapeout Simple metal-oxide-metal capacitor for gf180mcuD that fills an analog 1x2 tile 2026-11_media/social-preview-897DC [2026-11-09 10:38 p.m.] TTBot#6027 ✅ smunaut reported @tnt's [Quadrature VCO](https://www.tinytapeout.com/chips/ttgf0p3/tt_um_tnt_gf_vco) as working: Seems to work. 2.0V gives 120 MHz, 2.5V = 240 MHz, 3.3V = 317 MHz. Measuring phase between quadrature outputs shows 90 deg difference ( measured at ~ 30 MHz since higher freq are too distorted ). {Embed} https://www.tinytapeout.com/chips/ttgf0p3/tt_um_tnt_gf_vco 262 Quadrature VCO - Tiny Tapeout Quadrature VCO with nominal target frequency of 240 MHz 2026-11_media/social-preview-B5323 [2026-11-09 11:03 p.m.] namibj @tnt phase noise future when [probably not this week]....? https://www.youtube.com/watch?v=SOHjFtw0sgo .... for the frequencies you're dealing with, I think a pair of RTL-SDR's should actually be able to do it? I'm guessing there's some gnuradio or mayhaps more-dedicated DSP bundle around that can do the mentioned carrier lock, carrier-surpression, cross-correlation steps. Not gonna do _too well,_ but I can't expect that ASIC VCO to be hard-to-measure levels of low-phase-noise. {Embed} The Signal Path https://www.youtube.com/watch?v=SOHjFtw0sgo TSP #161 - Tutorial on Theory, Characterization & Measurement Techn... In this episode Shahriar demonstrates the fundamentals of Phase Noise. The theory behind phase noise is presented both from a time-domain and frequency domain points of view. Various mathematical equations which represent phase noise behavior is also presented. Phase noise measurement challenges and techniques are covered. Capabilities and limi... 2026-11_media/maxresdefault-5605C.jpg [2026-11-09 11:05 p.m.] 246tnt I expect it to be abysmal because of noise on the Vctl line. I should have put some on-die filtering ... [2026-11-09 11:31 p.m.] namibj oh. oh noes. just two itty bitty gate fingers and their paired-up (at least more than one contact!) via stack up and out to the analog mux..... Though.... why should it be _that_ noisy? T-gates aren't big noise sources, or are they actually? [2026-11-10 7:09 a.m.] 246tnt More like PCB traces and stuff acting as antenna ... [2026-11-10 9:23 a.m.] TTBot#6027 New tapeout: Aram Yun submitted tiny-sparse-acc (https://github.com/ramzxc/tiny-sparse-acc-gf180) {Embed} https://github.com/ramzxc/tiny-sparse-acc-gf180 GitHub - ramzxc/tiny-sparse-acc-gf180 Contribute to ramzxc/tiny-sparse-acc-gf180 development by creating an account on GitHub. 2026-11_media/tiny-sparse-acc-gf180-CD1BE ============================================================== Exported 21 message(s) ==============================================================