HDMI Chisel core

This HDMI core is mainly inspired from vhdl-hdmi-out project.

French_flags_720p

Install

To use it locally, first clone the repository then publish it locally :

$ git clone https://github.com/Martoni/HdmiCore.git
$ cd HdmiCore
$ sbt publishLocal

HdmiCore use fpgamacro project to work. It must be published locally too :

$ git clone https://github.com/Martoni/fpgamacro.git
$ cd fpgamacro
$ sbt publishLocal

On your personnal build.sbt project add the following line :

    libraryDependencies ++= Seq(
//    ...
      "com.armadeus" %% "hdmicore" % "6.2.0"
    ),

Generate simple pattern

For TangNano4k

First launch sbt then generate simple pattern for Tang Nano 4K board:

$ sbt
sbt:hdmicore> runMain hdmicore.platforms.TangNano4k
[info] running hdmicore.platforms.TangNano4k 
Elaborating design...
H_DISPLAY UInt<11>(1280)
V_DISPLAY UInt<10>(720)
hregsize 11
vregsize 10
Done elaborating.

A file named TangNano4k.v should be generated, it's the verilog file for the entire project (the TOP component)

Then launch gowin_ide and create a project with fpga part named GW1NSR-LV4CQN48PC7/I6. Once project created do not forget to activate MODE pin as a standard IO in menu Project->Configuration->Dual-Purpose Pin and select use MODE as regular IO. It's for led blinking :)

Then finaly add these files (prefere to not copy in local directory):

TangNano4k.v
platforms/tangnano4k/tangnano4k.cst
platforms/tangnano4k/tangnano4k.sdc

Then launch synthesis and place&route

Finally flash your board with openFPGALoader:

$ openFPGALoader ide/tangnano4khdmi/impl/pnr/tangnano4khdmi.fs
write to ram
Jtag frequency : requested 6.00MHz   -> real 6.00MHz  
Parse file Parse ide/tangnano4khdmi/impl/pnr/tangnano4khdmi.fs: 
Done
DONE
Jtag frequency : requested 2.50MHz   -> real 2.00MHz  
erase SRAM Done
Flash SRAM: [==================================================] 100.00%
Done
SRAM Flash: Success

Plug HDMI then enjoy the result.

For TangNano9k

First launch sbt then generate simple pattern for Tang Nano 9K board:

$ sbt
sbt:hdmicore> runMain hdmicore.platforms.TangNano9k
[info] running hdmicore.platforms.TangNano9k 
Elaborating design...
H_DISPLAY UInt<11>(1280)
V_DISPLAY UInt<10>(720)
hregsize 11
vregsize 10
Done elaborating.

A file named TangNano9k.v should be generated, it's the verilog file for the entire project (the TOP component)