320 Micro tile container (group 2)
320 : Micro tile container (group 2)
- Author: Uri Shaked
- Description: Experimental microtile container
- GitHub repository
- Clock: 0 Hz
Selecting the active project
Use uio[1:0] to select the active micro-tile project.
Project 0 - Test
- Repo: https://github.com/TinyTapeout/tt-micro-tiles-experiment
- Author: Uri Shaked
- Description: Micro tiles test module
How it works
The micro tiles test module is a simple module that demonstrates the use of the micro tile interface.
It has two modes of operation:
- Mirroring the input pins to the output pins (when
rst_nis low). - Outputing a counter on the output pins and the bidirectional pins (when
rst_nis high).
The counter is an 8-bit counter that increments on every clock cycle, and resets when rst_n is low.
How to test
- Set
rst_nlow and observe that the input pins (ui_in) are output on the output pins (uo_out). - Set
rst_nhigh and observe that the counter is output on the output pins (uo_out).
Project 1 - Wokwi Doodle
- Repo: https://github.com/dlmiles/tt08-micro-wokwi-doodle (micro)
- Repo: https://github.com/dlmiles/tt08-wokwi-doodle (1x1)
- Wokwi: https://wokwi.com/projects/408272151035187201
- Module: tt_um_wokwi_408272151035187201
- Author: Darryl Miles
- Description: TT08 Wokwi Doodle
How to build instructions in README.md of tt08-micro-wokwi-doodle
Picture of circuit also in README.md
How it works
I don't know how it works, it is a doodle.
The aim is to see if a random doodle can be made to count on the 7SEG.
Maybe it can, maybe it can't, let the truth tables work it out.
How to test
Send all possible input combinations to the project and see what happens.
It has never been tested to find out if it is possible to observe a full set of 7SEG font states at the output.
External hardware
None, just the standard Tiny Tapeout PCB.
Project 2 - NCO
- Repo: https://github.com/gfg-development/tt-micro-tiles-nco
- Author: Gerrit Grutzeck
- Description: Micro tiles nummerical controlled oscillator, which generates a PDM stream of a sawtooth
How it works
On ui_in the desired frequency is set. The hightest output frequency is the clock divided by $2^{21} / (2^8 - 1)$. The lowest possible frequency is the clock divided by $2^{21}$.
First a phase accumulator is used to generate the sawtooth. The resulting waveform is then converted into a PDM stream in a second stage.
This generated PDM datastream is output via uo_out[7].
How to test
Connect the audio Pmod to the output ports or any other low pass filter with a speaker to uo_out[7].
Then configure the clock to a meaningfull frequency (e.g. 50 MHz for frequencies between 6 kHz and 24 Hz).
Finally set the ui_in pins to the desired frequency (= clk / $2^{21}$ * ui_in). After applying the reset, the sawtooth will be generated.
Project 3 - Micro Maze
- Repo: https://github.com/htfab/micro-maze
- Author: htfab
- Description: A simple fixed maze game with 7-segment output
How it works
The player can walk around the maze, showing the adjacent walls on the 7-segment display.
How to test
Use the first four inputs to move up, down, left or right.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | in[0] | out[0] | sel[0] |
| 1 | in[1] | out[1] | sel[1] |
| 2 | in[2] | out[2] | |
| 3 | in[3] | out[3] | |
| 4 | in[4] | out[4] | |
| 5 | in[5] | out[5] | |
| 6 | in[6] | out[6] | |
| 7 | in[7] | out[7] |