139 Why not?

139 : Why not?

Design render

How it works

This is a single tile 'demo' hacked on the very last day, basically during coffee breaks. It's using an old rotozoom trick, and is otherwise pretty simple.

Music is ... well it is an attempt ;)

How to test

Plug VGA pmod, power up, enjoy.

External hardware

VGA PMOD, Audio PMOD

IO

#InputOutputBidirectional
0R1
1G1
2B1
3VS
4R0
5G0
6B0
7HSAudio (output)

Chip location

Controller Mux Mux Mux Mux Mux Mux Mux Mux Mux Mux Mux Analog Mux Mux Mux Mux Mux Mux Mux Mux Mux Mux Mux Analog Mux Mux Mux Mux Mux Mux Mux Mux Mux Mux tt_um_chip_rom (Chip ROM) tt_um_factory_test (TinyTapeout 8 Factory Test) tt_um_oscillating_bones (Oscillating Bones) tt_um_urish_charge_pump (Dickson Charge Pump) tt_um_bgr_agolmanesh (Bandgap Reference) tt_um_tnt_diff_rx (TT08 Differential Receiver test) tt_um_rejunity_vga_logo (VGA Tiny Logo (1 tile)) tt_um_tommythorn_maxbw (Asynchronous Multiplier) tt_um_mattvenn_r2r_dac_3v3 (Analog 8 bit 3.3v R2R DAC) tt_um_urish_simon (Simon Says memory game) tt_um_rebeccargb_universal_decoder (Universal Binary to Segment Decoder) tt_um_mattvenn_rgb_mixer (RGB Mixer demo5) tt_um_rebeccargb_hardware_utf8 (Hardware UTF Encoder/Decoder) tt_um_find_the_damn_issue (Find The Damn Issue) tt_um_brandonramos_VGA_Pong_with_NES_Controllers (VGA Pong with NES Controllers) tt_um_kb2ghz_xalu (4-bit minicomputer ALU) tt_um_rebeccargb_intercal_alu (INTERCAL ALU) tt_um_a1k0n_demo (Demo by a1k0n) tt_um_rburt16_bias_generator (Bias Generator) tt_um_zec_square1 ("SQUARE-1": VGA/audio demo) tt_um_jmack2201 (Sprite Bouncer with Looping Background Options) tt_um_ran_DanielZhu (Dice) tt_um_gfg_development_tinymandelbrot (TinyMandelbrot) tt_um_LnL_SoC (Lab and Lectures SoC) tt_um_htfab_pi_snake (Pi Snake) tt_um_tt08_aicd_playground (AICD Playground) tt_um_toivoh_demo (Sequential Shadows [TT08 demo competition]) tt_um_quarren42_demoscene_top (asic design is my passion) tt_um_crispy_vga (Crispy VGA) tt_um_MichaelBell_canon (TT08 Pachelbel's Canon demo) tt_um_shuangyu_top (Calculator) tt_um_wokwi_407306064811090945 (DDR throughput and flop aperature test) tt_um_08_sws (Sine Wave Synthesizer) tt_um_favoritohjs_scroller (VGA Scroller) tt_um_tt08_wirecube (Wirecube) tt_um_vga_glyph_mode (Glyph Mode) tt_um_a1k0n_vgadonut (VGA donut) tt_um_roy1707018 (RO) tt_um_analog_factory_test (TT08 Analog Factory Test) tt_um_sign_addsub (CMOS design of 4-bit Signed Adder Subtractor) tt_um_tinytapeout_logo_screensaver (VGA Screensaver with Tiny Tapeout Logo) tt_um_patater_demokit (Patater Demo Kit Waggling Rainbow on a Chip) tt_um_algofoogle_tt08_vga_fun (TT08 VGA FUN!) tt_um_simon_cipher (simon_cipher) tt_um_thexeno_rgbw_controller (Color Controller) tt_um_demosiine_sda (DemoSiine) tt_um_bytex64_munch (Munch) tt_um_alexjaeger_ringoscillator (5MHz Ring Oscillator) tt_um_cfib_demo (cfib Demoscene Entry) tt_um_wokwi_407852791999030273 (Simple 8 Bit ALU) tt_um_Richard28277 (4-bit ALU) tt_um_betz_morse_keyer (Morse Code Keyer) tt_um_nvious_graphics (nVious Graphics) tt_um_tiny_pll (Tiny PLL) tt_um_ezchips_calc (8-Bit Calculator) tt_um_hack_cpu (HACK CPU) tt_um_noritsuna_Vctrl_LC_oscillator (Voltage Controlled LC-Oscillator) tt_um_ring_divider (Divided Ring Oscillator) tt_um_2048_vga_game (2048 sliding tile puzzle game (VGA)) tt_um_morningjava_r2r_from_matt (Bucket Brigade) tt_um_ephrenm_tsal (TSAL_TT) tt_um_kapilan_alarm (Alarm Clock) tt_um_stochastic_addmultiply_CL123abc (Stochastic Multiplier, Adder and Self-Multiplier) tt_um_wokwi_407760296956596225 (tt08-octal-alu) tt_um_dlfloatmac (DL float MAC) tt_um_wakki_0123_Raw_Transistors (Raw_Transistors) tt_um_faramire_rotary_ring_wrapper (Rotary Encoder WS2812B Control) tt_um_devstdin_LDO_OSC (LDO BG IREF OSC) tt_um_frequency_counter (Frequency Counter SSD1306 OLED) tt_um_rom_test (TT08 SKY130 ROM 'YOLO' Test) tt_um_i2c_peripheral_stevej (i2c peripherals: leading zero count and fnv-1a hash) tt_um_yuri_panchul_schoolriscv_cpu_with_fibonacci_program (schoolRISCV CPU with Fibonacci program) tt_um_yuri_panchul_adder_with_flow_control (Adder with Flow Control) tt_um_brailliance (Brailliance) tt_um_nyan (nyan) tt_um_MichaelBell_mandelbrot (VGA Mandelbrot) tt_um_ssp_opamp (2-stage Opamp Designs) tt_um_fountaincoder_top_ad (pulse_add) tt_um_edwintorok (Rounding error) tt_um_mac (MAC) tt_um_dpmu (DPMU) tt_um_JAC_EE_segdecode (7 Segment Decode) tt_um_wokwi_408118380088342529 (Traffic-light-sequence) tt_um_shiftreg_test (TT08 SKY130 Shift Register 'YOLO' Test) tt_um_yuri_panchul_sea_battle_vga_game (Sea Battle) tt_um_benpayne_ps2_decoder (PS2 Decoder) tt_um_meriac_play_tune (Super Mario Tune on A Piezo Speaker) tt_um_comm_ic_bhavuk (Comm_IC) tt_um_daosvik_aesinvsbox (AES Inverse S-box) tt_um_wokwi_408216451206371329 (Logic Test) tt_um_micro_tiles_container (Micro tile container) tt_um_cattuto_sr_latch (TT08 - experiments with latch-based shift registers) tt_um_rejunity_vga_test01 (VGA Drop (audio/visual demo)) tt_um_silice (Warp) tt_um_wokwi_408231820749720577 (Abacus Lock) tt_um_jayjaywong12 (mulmul) tt_um_emmyxu_obstacle_detection (Obstacle Detection) tt_um_neural_navigators (Neural Net ASIC) tt_um_a1k0n_nyancat (VGA Nyan Cat) tt_um_rebeccargb_styler (Styler) tt_um_resfuzzy (resfuzzy) tt_um_cejmu (CEJMU Beers and Adders) tt_um_16_mic_beamformer_arghunter (16 Mic Beamformer) tt_um_pdm_pitch_filter_arghunter (PDM Pitch Filter) tt_um_pdm_correlator_arghunter (PDM Correlator) tt_um_ddc_arghunter (DDC) tt_um_i2s_to_pwm_arghunter (I2S to PWM ) tt_um_georgboecherer_vco (Analog Voltage Controlled Oscillator) tt_um_supermic_arghunter (Supermic ) tt_um_dmtd_arghunter (DMTD ) tt_um_htfab_bouncy_capsule (Bouncy Capsule) tt_um_samuelm_pwm_generator (PWM generator) tt_um_mattvenn_analog_ring_osc (Ring Oscillators) tt_um_toivoh_demo_deluxe (Sequential Shadows Deluxe [TT08 demo competition]) tt_um_vga_clock (VGA clock) tt_um_z2a_rgb_mixer (RGB Mixer demo) tt_um_faramire_stopwatch (Simple Stopwatch) tt_um_micro_tiles_container_group2 (Micro tile container (group 2)) tt_um_johshoff_metaballs (Metaballs) tt_um_top (Flame demo) tt_um_NicklausThompson_SkyKing (SkyKing Demo) tt_um_Electom_cla_4bits (4-bit CLA) tt_um_vga_cbtest (Generate VGA output for Color Blindness Test) tt_um_zoom_zoom (Zoom Zoom) tt_um_dpmunit (DPM_Unit) tt_um_clock_divider_arghunter (Clock Divider ) tt_um_dlmiles_poc_fskmodem_hdlctrx (FSK Modem +HDLC +UART (PoC)) tt_um_emilian_muxpga (TinyFPGA resubmit for TT08) tt_um_pyamnihc_dummy_counter (Dummy Counter) tt_um_whynot (Why not?) tt_um_sudana_ota5t_1 (5-T OTA) tt_um_dlmiles_tt08_poc_uart (UART) tt_um_dendraws_donut (donut) tt_um_wokwi_408237988946759681 (Counter) tt_um_tmkong_rgb_mixer (RGB Mixer) Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available