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my_hdmi_device

(★ 107)

New clean hdmi implementation for ulx3s, icestick, icoboard, arty7, colorlight i5 and blackicemx! With tmds encoding hacked down from dvi standard. Supports DDR and SRD tranfser!

파일 탐색기

최종 버전 다운로드 (.zip)

- dvi_spec-V1_0.pdf
- chip_balls.v
- ice40up5k.pcf
- Makefile
- chip_balls.v
- icestick.pcf
- Makefile
- - my_hdmi_nano.gprj
  - my_hdmi_nano.gprj.user
Arty-A7-100-Master.xdc
ball.v
blackice-mx.pcf
build_arty7.sh
chip_balls.v
colorlighti5.lpf
ecp5pll.sv
hdmi.jpg
hdmi_device.v
lfsr.v
LICENSE.md
Makefile
Makefile.arty7
Makefile.blackicemx
Makefile.colorlighti5
Makefile.icoboard
my_vga_clk_generator.v
my_vga_clk_generator.vh
nano4k.cst
README.md
tmds_encoder.v
ulx3s_v20.lpf
video_timings.v

# 설치 가이드

1. 코드 내려받기

git clone https://github.com/splinedrive/my_hdmi_device

깃허브에서 프로젝트 코드 전체를 내 컴퓨터로 내려받습니다.

cd my_hdmi_device

방금 내려받은 프로젝트 폴더 안으로 이동합니다.

2. Make

보통 추천

사전 준비물

Git GitHub에서 프로젝트 코드를 내려받으려면 필요합니다.
Make Linux/macOS는 보통 기본 설치되어 있습니다. Windows는 별도 설치(예: MSYS2, WSL)가 필요합니다.

make

생성된 빌드 설정을 바탕으로 실제 컴파일을 진행해 실행 파일을 만듭니다.

✅ 에러 없이 끝나면 성공입니다. 생성된 실행 파일을 직접 실행해보세요.

// repository documentation

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# my\_hdmi\_device

**my\_hdmi\_device** is an implementation inspired by the FPGA4Fun tutorials, ULX3S DVI (vga2dvi) examples, and Larry’s HDMI BlackIceMX example. I learned by reading the code, although I didn’t fully understand everything at first. That’s why I rewrote the TMDS encoder directly from the DVI standard (Page 29) — without any problems. This helped me understand TMDS encoding, why we use LVDS, the challenges involved, and how 8b/10b encoding fits into the bigger picture.

The idea of shifting and using a faster clock appears in all implementations I studied. I also learned about DDR and SDR transmission. 🙂 For iCE40, I learned from MyStorm and Larry’s HDMI example code. The VGA “balls and stars” demo technique I picked up from Steven Hugg’s *Designing Video Game Hardware in Verilog*.

I borrowed parts of the VGA timing calculation from the ULX3S example code, because usually these values are just shown as fixed tables. I wrote everything from scratch over the Christmas holidays, using the HDMI PMOD from Luke Wren (a gift from UltraEmbedded).

I want to share what I figured out and got working. Maybe this code can be a new base for other projects. Just use `tmds_encoder`, `hdmi_device.h`, and learn from the top module — then you’ll be ready for your next project.

---

## Supported Boards

This code runs on **BlackIceMX** and **ULX3S-85F** (you can adjust the Makefile to generate fewer “balls” if needed). I don’t want to go too deep into the details, because I want to explore many FPGA designs in the future. But everything starts with the basics.

I used this PMOD for iCE40-based FPGAs:
👉 [https://github.com/Wren6991/DVI-PMOD](https://github.com/Wren6991/DVI-PMOD)

---

## TODO

* HDMI audio (island mode)

---

## Build Instructions

**ULX3S:**
make prog

**BlackIceMX:**
make -f Makefile.blackicemx prog

**Icoboard:**
make -f Makefile.icoboard prog

**iCEstick:**
cd icestick\_\_hack
make prog

**Arty7:**
make -f Makefile.arty7 prog
⚠️ Currently not working. Use Vivado instead.
Enable with:
`define ARTY7`
DDR/SDR both work.

**Colorlight i5:**
make -f Makefile.colorlighti5 prog

**Tang Nano 4K:**
`define NANO_4K`
Open project file:
nano4k/my\_hdmi\_nano/my\_hdmi\_nano.gprj

---

Have fun!

**Hirosh**

![hdmi](https://raw.githubusercontent.com/splinedrive/my_hdmi_device/master/hdmi.jpg)