[[boards:ecb:scg:start]]
Trace: • cpldbootrom • zetav2 • zeta • sbrk • ashtons
Show page
Recent ChangesSitemap

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
boards:ecb:scg:start [2019/08/21 22:44] – Revision from 2019-08-21 boards:ecb:scg:start [2026/06/15 12:24] (current) – external edit 127.0.0.1
Line 1: Line 1:
 /* Imported from Wayback Machine /* Imported from Wayback Machine
-   Original URL : https://www.retrobrewcomputers.org/doku.php?id=boards:ecb:scg:start +   Original URL : https://retrobrewcomputers.org/doku.php?id=boards:ecb:scg:start 
-   Snapshot date: 2019-08-21+   Snapshot date: 2025-10-15
    Generator    : wayback-archiver    Generator    : wayback-archiver
 */ */
- 
-====== ECB Sprite Color Graphics ====== 
  
 Video Display Interface Board Video Display Interface Board
Line 17: Line 15:
 Current Version: “003”. Current Version: “003”.
  
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_kicad.zip|:boards:ecb:scg:scg-003_kicad.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_kicad.zip|:boards:ecb:scg:scg-003_kicad.zip]]
  
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_gerbers.zip|:boards:ecb:scg:scg-003_gerbers.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_gerbers.zip|:boards:ecb:scg:scg-003_gerbers.zip]]
  
 Please see [[boards:ecb:scg:changes|Changes & Errata]] section for details on previous versions and in particular, information on modifying the SCG board to work in Kontron reset configuration. Please see [[boards:ecb:scg:changes|Changes & Errata]] section for details on previous versions and in particular, information on modifying the SCG board to work in Kontron reset configuration.
Line 31: Line 29:
 ==== Parts List ==== ==== Parts List ====
  
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.pdf|Parts List - PDF]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.pdf|Parts List - PDF]]
  
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.xlsx|Parts List - XLS]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.xlsx|Parts List - XLS]]
  
 The TMS9918 is an NTSC format chip. A PAL version of this chip is available (TMS9928A) but it is not totally compatible per the following from the datasheet. The TMS9918 is an NTSC format chip. A PAL version of this chip is available (TMS9928A) but it is not totally compatible per the following from the datasheet.
Line 40: Line 38:
  
 So maybe that is something for the next iteration… So maybe that is something for the next iteration…
 +
 +From Adam Dewis: “It turns out 9128/9118s and such designed with 4-Bit DRAM have bidirectional data pins instead of the multiplexed address/data out and data-in bus on the 9918 which (necessitated by 1-bit DRAMs having separate data in and out pins). After going cross eyed at the schematics for a while I noticed U9 latches data out onto the SRAMs bidir data bus. As the 9128 is also bidir this latch isn't needed if you substitute a TMS9118/9128 chip. I thought I would pass this along as it is not mentioned on the wiki, it took me a fair amount of digging to locate this information, and other than some characters being repeated in text mode these the TMS9128 appears to be an acceptable substitute for the TMS9918.”
  
 A 2Mhz crystal is specified for the sound chip clock but on board dividers can be configured to use a higher frequency crystal. Also common serial and colour burst frequency crystals can be used depending on your need for frequency accuracy and compatibility. A 2Mhz crystal is specified for the sound chip clock but on board dividers can be configured to use a higher frequency crystal. Also common serial and colour burst frequency crystals can be used depending on your need for frequency accuracy and compatibility.
Line 83: Line 83:
  
 <code code> <code code>
-  5-7:  Audio Oscillator / 8 +  6-8:  Audio Oscillator / 1 
-  7-9:  Audio Oscillator / 2 +* 5-7:  Audio Oscillator / 2
-* 6-8:  Audio Oscillator+
   8-10: Audio Oscillator / 4   8-10: Audio Oscillator / 4
 +  7-9:  Audio Oscillator / 8
 +
 +(Corrected 29/11/2021)
 </code> </code>
  
Line 186: Line 188:
 ==== Test Software ==== ==== Test Software ====
  
-Two programs are available to test basic video operation of the card in the [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:tms9918-test.zip|tms9918-test]] package. Refer to images below.+Two programs are available to test basic video operation of the card in the [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:tms9918-test.zip|tms9918-test]] package. Refer to images below.
  
 HW9918.COM will display the “HELLO WORLD” text on the screen. HW9918.COM will display the “HELLO WORLD” text on the screen.
Line 192: Line 194:
 TSTSPR.COM will display sprites and allow background colour changes. TSTSPR.COM will display sprites and allow background colour changes.
  
-Sound functionality can be tested with the [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ay-test.zip|ay-test]] package.+Sound functionality can be tested with the [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ay-test.zip|ay-test]] package.
  
 AY-TEST.COM will output a descending tone to each sound channel. AY-TEST.COM will output a descending tone to each sound channel.
Line 214: Line 216:
 ==== Sound Programs ==== ==== Sound Programs ====
  
-The AY-3-8910 is a widely supported sound chip and there is a large library of sound files that can be played on this board. Included in ROMWBW is a sound file player called TUNE which can play Protracker 2/3 and .MYM format PSG files. A collection of demonstration files is also included.+The AY-3-8910 is a widely supported sound chip and there is a large library of sound files that can be played on this board. Included in ROMWBW is a sound file player called TUNE which can play Protracker 2/3 and .MYM format PSG files and a collection of demonstration files. 
 + 
 +See here for more : https://zxart.ee/eng/music/ 
 + 
 +Download a sample Chip Tune pack here : [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ctpack01.zip|:boards:ecb:scg:ctpack01.zip]]
  
 ===== Photo Gallery ===== ===== Photo Gallery =====
Line 262: Line 268:
 ===== Demonstration Videos ===== ===== Demonstration Videos =====
  
-  * [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0059.mov|mpeg0059.mov]] +  * [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0059.mov|mpeg0059.mov]] 
-  * [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0060.mov|mpeg0060.mov]] +  * [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0060.mov|mpeg0060.mov]] 
-  * [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0061.mov|mpeg0061.mov]] +  * [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0061.mov|mpeg0061.mov]] 
-  * [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0063.mov|mpeg0063.mov]] +  * [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0063.mov|mpeg0063.mov]] 
-  * [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0064.mov|mpeg0064.mov]]+  * [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:videos:mpeg0064.mov|mpeg0064.mov]]
  
 ===== File List ===== ===== File List =====
Line 274: Line 280:
 Filesize Filesize
 Last modified Last modified
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ay-test.zip|ay-test.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ay-test.zip|ay-test.zip]]
 6.2 KiB 6.2 KiB
 2017/10/09 14:47 2017/10/09 14:47
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ecb_scg-002.zip|ecb_scg-002.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ctpack01.zip|ctpack01.zip]] 
 +311.1 KiB 
 +2020/02/02 23:27 
 +[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:ecb_scg-002.zip|ecb_scg-002.zip]]
 137.4 KiB 137.4 KiB
 2017/10/05 22:45 2017/10/05 22:45
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.pdf|scg-002-bom.pdf]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.pdf|scg-002-bom.pdf]]
 383.5 KiB 383.5 KiB
 2017/10/05 22:54 2017/10/05 22:54
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.xlsx|scg-002-bom.xlsx]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002-bom.xlsx|scg-002-bom.xlsx]]
 19.8 KiB 19.8 KiB
 2017/10/05 22:45 2017/10/05 22:45
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002_board.pdf|scg-002_board.pdf]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002_board.pdf|scg-002_board.pdf]]
 4.3 MiB 4.3 MiB
 2017/10/05 22:45 2017/10/05 22:45
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002_schematic.pdf|scg-002_schematic.pdf]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-002_schematic.pdf|scg-002_schematic.pdf]]
 258.4 KiB 258.4 KiB
 2017/10/05 22:45 2017/10/05 22:45
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_gerbers.zip|scg-003_gerbers.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_gerbers.zip|scg-003_gerbers.zip]]
 222.1 KiB 222.1 KiB
 2018/06/26 07:47 2018/06/26 07:47
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_kicad.zip|scg-003_kicad.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scg-003_kicad.zip|scg-003_kicad.zip]]
 183.8 KiB 183.8 KiB
 2018/06/26 07:47 2018/06/26 07:47
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scgmsxstuff.zip|scgmsxstuff.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:scgmsxstuff.zip|scgmsxstuff.zip]]
 9.4 MiB 9.4 MiB
 2017/10/07 13:06 2017/10/07 13:06
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:sgc-002_gerbers.zip|sgc-002_gerbers.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:sgc-002_gerbers.zip|sgc-002_gerbers.zip]]
 209.1 KiB 209.1 KiB
 2018/06/24 07:52 2018/06/24 07:52
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:tms9918-test.zip|tms9918-test.zip]]+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:scg:tms9918-test.zip|tms9918-test.zip]]
 11.2 KiB 11.2 KiB
 2017/10/08 15:01 2017/10/08 15:01
  
boards/ecb/scg/start.1566427455.txt.gz · Last modified: (external edit)
Show pageOld revisions
Media ManagerBack to top
CC Attribution-Share Alike 4.0 International
Driven by DokuWiki Recent changes RSS feed Valid CSS Valid XHTML 1.0