37 DOTTEE VGA demo

37 : DOTTEE VGA demo

Design render

How it works

This is my submission to the TTSKY26a Demoscene Competition, in the 1-tile category. Racing the beam, we use the power of MATHS to generate pretty pictures.

How to test

Just hook up a VGA monitor, supply a 25MHz clock, and reset it. Use the TT Audio PMOD to hear some music.

It repeats after about 68 seconds.

External hardware

IO

#InputOutputBidirectional
0R1
1G1
2B1
3VSync
4R0
5G0
6B0
7HSyncaudio_out

Chip location

Controller Mux Mux Mux Mux Mux Mux Mux Mux Mux Mux Analog Mux Mux Mux Mux Mux Mux Mux Mux Mux Mux Analog Mux Mux Mux Mux Analog Mux Mux Mux Mux Mux Mux tt_um_chip_rom (Chip ROM) tt_um_factory_test (Tiny Tapeout Factory Test) tt_um_oscillating_bones (Oscillating Bones) tt_um_wokwi_457142813149930497 (TinyTapeOut workshop) tt_um_wokwi_457311688017142785 (tiny tapeout test gates) tt_um_bfcpu (bfCPU) tt_um_rebeccargb_universal_decoder (Universal Binary to Segment Decoder) tt_um_rebeccargb_hardware_utf8 (Hardware UTF Encoder/Decoder) tt_um_rebeccargb_intercal_alu (INTERCAL ALU) tt_um_rebeccargb_vga_pride (VGA Pride) tt_um_wokwi_457215959798165505 (4-bit N frequency divider) tt_um_ppu_aebarthyi (simple_ppu) tt_um_riscyv02 (RISCY-V02) tt_um_pong (Pong) tt_um_LH_TapeoutMultiplier (tt_um_LH_TapeoutMultiplier) tt_um_wokwi_457571222315471873 (7 Seg C) tt_um_wokwi_457571216758012929 (Mikes Second) tt_um_wokwi_457569452934172673 (FirstTinyTapeoutWokwiProject) tt_um_wokwi_457571159626309633 (Tiny Tapeout V1) tt_um_wokwi_457577038845586433 (TinyTapeOut) tt_um_wokwi_457571280506256385 (Tiny tapeouts test gates) tt_um_wokwi_457576742418338817 (calculator) tt_um_wokwi_457571219715001345 (Ami's TT Logic Gates) tt_um_wokwi_457571067547656193 (Mikes First Wokwi design) tt_um_wokwi_457571453314827265 (Tiny tapeout one hot to seven segment display 1-8) tt_um_wokwi_457572218833202177 (4bit adder and hex converter) tt_um_wokwi_463741407580251137 (Lady's First Tapeout) tt_um_wokwi_457571138696714241 (jdisplayer) tt_um_wokwi_457570687900145665 (Tiny Tapeout Test Gates) tt_um_wokwi_457577511431565313 (Tiny Tapeout Test Gates) tt_um_wokwi_457571262875481089 (Tiny Tapeout) tt_um_wokwi_457571417674762241 (TamTries Tiny Tapeout) tt_um_wokwi_457571366985520129 (georgies wokwi design) tt_um_wokwi_457571701752981505 (WilfTT) tt_um_wokwi_457572875733692417 (First WOKWI Design) tt_um_wokwi_457571571887847425 (tiny tapeout gate test) tt_um_wokwi_457571352249873409 (First Wokwi design) tt_um_wokwi_457571405919170561 (Namo's first tapeout) tt_um_wokwi_457571339952163841 (OR Gate with NAND) tt_um_wokwi_457571188658258945 (Abishag's first Wokwi Design) tt_um_wokwi_457571426719781889 (Tiny) tt_um_wokwi_457571268900604929 (tiny tape GDS) tt_um_wokwi_457571949070179329 (Tom Haley Tiny Tape Out Design ) tt_um_alex_ha_192 (alex_ha_192) tt_um_wokwi_457577241913913345 (tiny tapeout test gates ) tt_um_wokwi_457571297367365633 (First Wokwi Attempt) tt_um_wokwi_457571363309211649 (idk yet) tt_um_wokwi_457571305740256257 (Work In progress title) tt_um_wokwi_457579594627462145 (TinyTapeoutProjectDefne) tt_um_wokwi_457571274041781249 (Tiny Tapeout Workshop by Kirsty Tan) tt_um_wokwi_457571233499594753 (Tiny Tapeout Workshop) tt_um_wokwi_457570205537212417 (Tiny Tapeout Test Project) tt_um_ojas_sharma_imperial_ttcpu (ttcpu 4-bit RISC microprocessor) tt_um_wokwi_457571271419289601 (chip one) tt_um_wokwi_457573490746716161 (Name Serial Printer) tt_um_wokwi_457569507958215681 (Tiny tapeout proj) tt_um_wokwi_457577929607958529 (Random 1st Attempt) tt_um_wokwi_457571438667259905 (PD+PFD+FreqDiv) tt_um_wokwi_457571602706552833 (Joe's first Wokwi design) tt_um_wokwi_457571471659666433 (Nicolas' first Wokwi design) tt_um_wokwi_457571148733696001 (Tiny Tapeout Workshop 1) tt_um_wokwi_457572520479222785 (Tiny Tapeout: Buenos días Mundo! ) tt_um_wokwi_457571494688497665 (First Chip) tt_um_wokwi_457571341266031617 (D-Type Flip Flop) tt_um_wokwi_457581344351934465 (WOKWI) tt_um_wokwi_457571462196267009 (Tiny Tapeout) tt_um_wokwi_457571359410603009 (TinyTapeout) tt_um_Terdoo_Osu (Spiking Pattern Recognition Core) tt_um_wokwi_457571319408448513 (Mani TinyTapeout) tt_um_wokwi_457571298662360065 (Tiny Tapeout Test Gates) tt_um_wokwi_457573015156590593 (Lil tapeout) tt_um_wokwi_457576363047649281 (Inverter) tt_um_wokwi_457571216488527873 (Tiny Tapeout Template Copy Paul 1) tt_um_wokwi_457571472208072705 (Tiny Tapeout Test design) tt_um_wokwi_457571381968631809 (Tiny tapeout test) tt_um_wokwi_457571314694049793 (Tiny Tapeout Test) tt_um_wokwi_457571368009979905 (Tiny Tapeout Test Gates) tt_um_wokwi_457571389542502401 (First thing) tt_um_wokwi_457570267471381505 (Tiny Tapeout) tt_um_wokwi_457571563051492353 (CS First Wokwi design) tt_um_wokwi_457577392775721985 ( tiny Tapeout Test Gate) tt_um_wokwi_457570279596067841 (Tiny Tapeout Workshop - AJJ) tt_um_wokwi_457571180646081537 (Alins Password) tt_um_wokwi_457572360568198145 (Tiny Tapeout) tt_um_wokwi_457571270578328577 (Tiny tapeout workshop) tt_um_wokwi_457581625098771457 (Tiny Tapeout First Test Run) tt_um_wokwi_442342513281875969 (First Design) tt_um_wokwi_457581848269362177 (Tiny Tapeout Brainf*ck?) tt_um_sap_alexanderholden (sap1) tt_um_wokwi_457571752214675457 (3bit_ALU) tt_um_wokwi_457571542558115841 (Tiny Tapeout") tt_um_wokwi_457573095390500865 (Tiny Tapeout Workshop Counter) tt_um_wokwi_457571511812802561 (Akash's first Wokwi design) tt_um_wokwi_457577563633889281 (Tiny Tapeouts gate tests) tt_um_wokwi_457576950671858689 (Hymns_GDS) tt_um_wokwi_457571371384299521 (Digital digit display circuit - TINYTAPEOUT) tt_um_rowantylerr_RC_TDC (Resistor Capacitor TDC) tt_um_wokwi_463662181299058689 (2 bit ALU) tt_um_chinghey (Hey FlexCompute-130) tt_um_8b10 (serdes8b10) tt_um_rom_vga_screensaver (VGA Screensaver with embedded bitmap ROM) tt_um_mayamelon_top (Tiny PI Controller) tt_um_JAIMEPRYOR0_VGA_YAY (VGA_YAY) tt_um_2048_vga_game (2048 sliding tile puzzle game (VGA)) tt_um_mng2_2ncos (A Tale of Two NCOs) tt_um_shimmydee_checkers (One-tile ADC) tt_um_urish_simon (Simon Says memory game) tt_um_dheeeraaj_sine_chirp_beacon (DDS Sine Chirp Beacon) tt_um_nicholas_ls194a (Universal Shift Register (SN74LS194A compatible)) tt_um_BellaB05_Hearts (Pink Hearts) tt_um_scottshuynh_ad_astra (ASIC Ad Astra) tt_um_liamolucko_vga (VGA demo) tt_um_lledoux_s3fdp_seqcomb (S3FDP Seq+Comb Stream Core) tt_um_5482582_cat_vga (Cat VGA) tt_um_vga_example_directional_toggle (Directional toggle of VGA playground example) tt_um_jimbok_ro_puf (Ring Oscillator PUF) tt_um_xxsahanaxx_hwsec_glitch (Hardware Security Glitching Attack) tt_um_NguyenHuuHenry_vga_project (VGA_Project) tt_um_irfantekin_analog (tt_um_irfantekin_analog) tt_um_chicagojones_sky26a_trng (Sky26a Advanced TRNG) tt_um_yen (YEN) tt_um_pedometer (Ultra Low Power Pedometer ASIC) tt_um_analog_atenfyr1 (Configurable Self-biasing Miller-compensated OTA) tt_um_aes_sbox (Formally-Verified Constant-Time AES S-Box) tt_um_tcpu_alienflip (tcpu) tt_um_nebula (Sierpinski Fractal Starfield) tt_um_zenith_tx26 (Zenith TX26) tt_um_odgrip_demoscene_ttsky26a (My first demoscene) tt_um_vighnesh_sawant_plane (Plane with a banner) tt_um_glyph_mode_hd (Glyph Mode HD) tt_um_TSARKA_TinyQV (TinyQV Wishbone SoC) tt_um_SimpleCounter (Simple Counter) tt_um_cfar_nobuzzer (CFAR Detector without Buzzer) tt_um_present (Present) tt_um_top (Approximate Logic Unit) tt_um_goose (OIIA-goose) tt_um_riscv_core (Tiny RISC-V) tt_um_dac_test3v3 (Design and Implementation of R-2R Ladder DAC for GPR Application) tt_um_tadc_its (Time Domain ADC) tt_um_algofoogle_vga_matrix_dac (Analog VGA CSDAC experiments) tt_um_jyblue1001_pll (Analog-PLL) tt_um_axi4lite2x2_top (AXI4-Lite 2M-2S Interconnect) tt_um_systolic_top (4x4 Systolic Matrix MAC Accelerator) tt_um_goose_game (Goose Game) tt_um_rongbin99_happyredmapleleaf_audio_chip (Audio Wave Generator Chip) tt_um_fp_id (FinSec-1: AS-68M Fingerprint Verification ASIC) tt_um_game_of_life (Demoscene: Game of Life) tt_um_ds_missile_command (Missile Command) tt_um_cmos_inverter (Reactive Plasma: CMOS Inverter) tt_um_nightplumeaki_tinypipcore (tinypipcore) tt_um_immrudul_w7khan (Mrudul and Wahhaj Demoscene F2025) tt_um_sohamgovande_transformer (Transformer) tt_um_isa084_uart_servo (UART Positioning PWM Interface) tt_um_wokwi_461265571826974721 (Bias Correction Filter) tt_um_8_bit_cpu (8-bit CPU) tt_um_richad (ADPPLS) tt_um_algofoogle_dottee (DOTTEE VGA demo) tt_um_sar_fms (SAR FSM) tt_um_kolontsov_journey (Journey) tt_um_fft_adityaamehra (64 Sample FFT ASIC) tt_um_lambda_clock (Lambda Clock) tt_um_ece298A_analog (ECE298A analog tile) tt_um_toivoh_demo (Orion Iron Ion [TTSKY26a demo competition]) tt_um_kilian_interference (Wave Lattice) tt_um_fabulous_sky_26a (Tiny FABulous FPGA) tt_um_Rats2012_WobblyBits (WobblyBits - 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1D Cellular Automata) tt_um_shimomi_analog (analog circuit) tt_um_toivoh_demo_4tile (Four tile demo [TTSKY26a demo competition]) tt_um_IEEE_open_silicon_FOSSEE (Ring oscillator VCO and Differential Amplifier) tt_um_lm_chip_top (Project Long Man: A Delay-Insensitive Interconnect) tt_um_AlephNaNsea_space_time_waves_and_filaments (Space-Time Waves and Filaments) tt_um_spacelizard_apu (Spacelizard APU) tt_um_wokwi_457569490272926721 (Letter S) tt_um_mau_top_4b (SIMD2 Math Accelerator Unit) tt_um_maze (Maze) tt_um_demoscenettsky (Algorithmic Pattern Generator) tt_um_wokwi_457572141968369665 (Arran's tinytapeout project) tt_um_maxluppe_ttsky26a_analog (Standard Digital Logic Cells Analog Comparator) tt_um_grammartile (GrammarTile) tt_um_bubble_sort (IEEE Bubble Sort Engine) tt_um_ahmed_nematallah_12_bit_adc (12-bit ADC) tt_um_bad_ode_plotter_vga (Bad VGA ODE Plotter) tt_um_wokwi_463706339714973697 (Demo 4-bit ALU 74181 variant) tt_um_wokwi_457569853853115393 (Jasper Tiny Tape Out Workshop) tt_um_wokwi_457560507752701953 (Osian Tiny Tapeout) tt_um_wokwi_457571501325987841 (Rola_Tiny Tapeout Template Workshop4Mar26) tt_um_wokwi_457571903121572865 (TT-wokwi-template) tt_um_wokwi_463380823859050497 (My_Name_on_7_Seg_display) tt_um_wokwi_457569584731832321 (Tiny Tapeout 9 Template Copy) tt_um_wokwi_457571826952995841 (Tiny Tapeout Novomorphic Design 1) tt_um_wokwi_457571349142937601 (Tiny Tapeout Secret First Letter Code) tt_um_wokwi_457571261877235713 (Tiny Tapeout Test) tt_um_wokwi_457582867322921985 (Tiny Tapeout Test GDS) tt_um_wokwi_457571135132600321 (Tiny Tapeout Test Gates) tt_um_wokwi_457571331577181185 (Tinytapeout_IA) tt_um_wokwi_457576779101727745 (tiny tapeout test gates) tt_um_wokwi_457571577702202369 (tj wowki) tt_um_wokwi_457572953060951041 (wokwi) tt_um_pettit_galton (Tiny Galton) tt_um_fountaincoder_top_abc (ABC Temporal Coincidence Detector) tt_um_prime_quine (Prime Quine) tt_um_ghtag_trinity_gf16 (Trinity GF16 Dot Product Accelerator) tt_um_LFSR (Configurable Galois LFSR) tt_um_Acrazt05_titan_proccesing_unit (Titan Proccesing Unit (TPU)) tt_um_essen (Digital) tt_um_alu_bns (6-bit Multi-Functional ALU) tt_um_gerardvt_spade_poc (Interactive XOR Plasma (Spade HDL)) tt_um_gerardvt_clash_poc (Interactive Triangle-Wave Plasma (Clash HDL)) tt_um_jackthoene_frogger (Frogger) tt_um_wokwi_463698873100105729 (IEEE Open Silicon 2026: UTB Logic Trivia Challenge: 8-bit Digital Lock) tt_um_wokwi_463666635153364993 (IEEE - Hex Counter and Logic Gate Validator) tt_um_ChristmasTree_MaligayangPasko (ChristmasTree_MaligayangPasko) tt_um_wokwi_463711763041599489 (IEEE Open Silicon 2026: UTB UART Transmitter basic) tt_um_tinytensorcore (TinyTensorCore) tt_um_uwasic_crypto (UWASIC Crypto) tt_um_topadi (time) tt_um_siliconimist (Siliconimist Demoscene) tt_um_neutern_0 (tt_um_neutern_0) tt_um_htfab_hsxo (HSXO) tt_um_madech_8bit_processor_vga (8-Bit Processor with VGA) tt_um_vga_clock (VGA clock) tt_um_usu_AXIS_MVMul (AXI-Stream Matrix Vector Multiplier) tt_um_weird_numbers (Weird Numbers) tt_um_bovi_cable_tester (Cable Tester) tt_um_libokuohai_asap_cpu_v2 (ASAP CPU v2) tt_um_LinusSkucas_pio (Tiny PIO) tt_um_thomas_ep_sensor (EP Sensor v7 (symmetric in-place thicken, Zhao-compliant)) tt_um_rakhanaufm_truerandom (Current-Starved Ring Oscillator Based True Random Number Generator) tt_um_parakeet (parakeet) tt_um_mcml_vco (MCML experiments) tt_um_tpu ( Tensor Processing Unit) tt_um_strasti (8-Bit ALU) tt_um_zed_analog (Analog design) tt_um_axi4lite_top (Axi4_Lite) tt_um_c4m_spsram_direct (TTSKY-SPSRAM-direct) tt_um_Onchip_Folded_Cascode_N_with_Bias (Folded Cascode N Type with Bias from Onchip Research Group) tt_um_htfab_hybrid (Telephone hybrid) tt_um_ilamparuthi_cfar (CFAR Radar Detector) tt_um_pakesson_glitcher (Glitcher) tt_um_advaittej_stopwatch (V-SPACE Demo: Command & Control Chronograph) tt_um_william_pll (Smartcard PLL Clock Generator) tt_um_Melody_Generator_JLANordhal (Melody Generator based on Markov Chains) tt_um_d_monteiro (Neuromorphic Processor (SNN)) tt_um_jacob_kebaso_4bit_cpu (Nibble - 4-bit CPU) tt_um_signal_detector (Signal_Detection_Processor) tt_um_catalinlazar_tinycore8 (TinyCore8) tt_um_chidam_secengine (Tiny Secure Telemetry Engine) tt_um_urish_usb_cdc (USB CDC (Serial) Device) tt_um_josenbm (9-Channel Frequency Counter with I2C + SPI DAC & ADC) tt_um_shalindra_vga_rings (Variable Speed and Colour Select VGA Rings) tt_um_dinukuk_MYVGA_GLIDER (DKTT01 - VGA Glider) tt_um_fibonacci_JoaoBortolace (Fibonacci Counter) tt_um_wokwi_461639934990157825 (4 bit unlock (IEEE)) tt_um_ctw_ldo (LDO Regulator Skywater 130nm)