doom bitstream for ulx3s

emard commented 4 years ago

HI

I'd like if you could open a separate git repository with binaries (bitstream, flash image maybe) of this great example:

https://twitter.com/sylefeb/status/1288053013748289538

sylefeb commented 4 years ago

Hi Emard, thanks for the suggestion - that is a good idea. I am a bit concerned by copyright on the Doom data (as it gets embedded into the bitstream, unsure this is ok or not) ; but I was thinking of using FreeDoom https://freedoom.github.io/ I'll look into it, and also will port other demos to the small screen!

emard commented 4 years ago

HI

For binary repo a free version would be ideal

3D rendering example on 1.3" ST7789 color LCD is just fantastic

I designed ULX3S, but not imagined something like this would be easily possible :)

so much great projects appeared recently

On 7/28/20, sylefeb notifications@github.com wrote:

Hi Emard, thanks for the suggestion - that is a good idea. I am a bit concerned by copyright on the Doom data (as it gets embedded into the bitstream, unsure this is ok or not) ; but I was thinking of using FreeDoom https://freedoom.github.io/ I'll look into it, and also will port other demos to the small screen!

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/sylefeb/Silice/issues/52#issuecomment-665178006

sylefeb commented 4 years ago

This is a great board, a ton of fun to play with, thanks for making this possible! Only getting started ;-)

emard commented 4 years ago

Thanx! If you have some hardware or support issues, feel free to ask me. Onboard ESP32 can be used for remote writing to FPGA, FLASH and SD, faster than USB and very practical https://github.com/emard/esp32ecp5

I just compiled silice binary, hope that's enough to build something please add some ULX3S board specific examples - I like to try compiling blink and 3D checkered pattern on HDMI or ST7789

On 7/28/20, sylefeb notifications@github.com wrote:

This is a great board, a ton of fun to play with, thanks for making this possible! Only getting started on the possibilities ;-)

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/sylefeb/Silice/issues/52#issuecomment-665193704

sylefeb commented 4 years ago

Most of the ULX3S work is in the work in progress (wip) branch, with a dedicated folder in projects/build/ https://github.com/sylefeb/Silice/tree/wip/projects/build/ulx3s

Many of the current examples are using a VGA DAC, I am hoping to port to HDMI soon. Also most of the recent work is not yet in the repo. I'll push hopefully tonight (was chasing a few last issues).

Please let me know if you run into trouble.

emard commented 4 years ago

Great, I will wait for mainstream push small hint, option ecppack --compress will make shorter bitstream which loads much faster

On 7/28/20, sylefeb notifications@github.com wrote:

Most of the ULX3S work is in the work in progress (wip) branch, with a dedicated folder in projects/build/ https://github.com/sylefeb/Silice/tree/wip/projects/build/ulx3s

Many of the current examples are using a VGA DAC, I am hoping to port to HDMI soon. Also most of the recent work is not yet in the repo. I'll push hopefully tonight (was chasing a few last issues).

Please let me know if you run into trouble.

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/sylefeb/Silice/issues/52#issuecomment-665203921

sylefeb commented 4 years ago

Thanks! I just tested freedoom and ... it worked! Here is a bitstream to test (super low res, just a first attempt) - this is for the ST7789 screen.

freedoom_e1m1_ulx3s.zip

sylefeb commented 4 years ago

I also pushed to work in progress ; you could give it a try as it is fairly stable. A good starting point for ULX3S + ST7789 is projects/oled_test. To build go into projects/build/ulx3s and use ./ulx3s_bare.sh ../../oled_test/oled_test.ice For the Doom-chip, first put doom1.wad in projects/doomchip and then ./ulx3s_bare.sh ../../doomchip/oled_doomchip.ice (takes ~1 hour)

emard commented 4 years ago

Bitstream works!! tested on ULX3S 85F + ST7789 LCD! Just a bitstream is required, no FLASH, no SD

Screen is quite dark, has colors, responds fast. Left button turns right, right button turns left.

Thanx for this incredible example!

On 7/28/20, sylefeb notifications@github.com wrote:

I also pushed to work in progress ; you could give it a try as it is fairly stable. A good starting point for ULX3S + ST7789 is projects/oled_test. To build go into projects/build/ulx3s and use ./ulx3s_bare.sh ../../oled_test/oled_test.ice For the Doom-chip, first put doom1.wad in projects/doomchip and then ./ulx3s_bare.sh ../../doomchip/oled_doomchip.ice (takes ~1 hour)

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/sylefeb/Silice/issues/52#issuecomment-665295295

sylefeb commented 4 years ago

Ah great! Thanks for testing it. The image is mirrored left/right, hence the reverted controls :-) (I have to fiddle a bit more with the screen MADCTL) It seems the screen has a Gamma capability, but I could not really get anything out of it yet ...

I believe I have room for significant improvement in both speed and size (LUTs, BRAM is constrained by game data). Working on it!

emard commented 4 years ago

ST7789 has hardware option to mirror in all 4 directions

Here are my initialization files st7780linit*.mem They differ in MADCTL CASET RASET parameters

https://github.com/emard/ulx3s-misc/tree/master/examples/spi_display/hdl/spi_display_verilog

On 7/29/20, sylefeb notifications@github.com wrote:

Ah great! Thanks for testing it. The image is mirrored left/right, hence the reverted controls :-) (I have to fiddle a bit more with the screen MADCTL) It seems the screen has a Gamma capability, but I could not really get anything out of it yet ...

I believe I have room for significant improvement in both speed and size (LUTs, BRAM is constrained by game data). Working on it!

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/sylefeb/Silice/issues/52#issuecomment-665485796

emard commented 4 years ago

this init sequence contains control bytes that are not sent to SPI but they describe for number of parameters that follow is is there delay after the command

I tried to comment them in one of the files like this https://github.com/emard/ulx3s-misc/blob/master/examples/spi_display/hdl/spi_display_verilog/st7789_linit.mem#L24

On 7/29/20, D EMARD vordah@gmail.com wrote:

ST7789 has hardware option to mirror in all 4 directions

Here are my initialization files st7780linit*.mem They differ in MADCTL CASET RASET parameters

https://github.com/emard/ulx3s-misc/tree/master/examples/spi_display/hdl/spi_display_verilog

On 7/29/20, sylefeb notifications@github.com wrote:

Ah great! Thanks for testing it. The image is mirrored left/right, hence the reverted controls :-) (I have to fiddle a bit more with the screen MADCTL) It seems the screen has a Gamma capability, but I could not really get anything out of it yet ...

I believe I have room for significant improvement in both speed and size (LUTs, BRAM is constrained by game data). Working on it!

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/sylefeb/Silice/issues/52#issuecomment-665485796

sylefeb commented 4 years ago

Thanks!

sylefeb / Silice

doom bitstream for ulx3s #52