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builderpages:b1ackmai1er:start [2019/05/14 17:39]
b1ackmai1er
builderpages:b1ackmai1er:start [2019/07/11 01:55] (current)
b1ackmai1er
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-{{indexmenu>​builderpages:​b1ackmai1er#2|js navbar}}{{indexmenu>​playground:​b1ackmai1er#2|js navbar}}+|{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​thumbnails/​ecb-4pio-thumb.png?​nolink&​128x220}}|{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​thumbnails/​ecb-scg-thumb.png?​nolink&​128x220}}|{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​thumbnails/​ecb-sbc-v2-003a-thumb.png?​nolink&​128x220}}
 +|ECB-4PIO|ECB-SCG|ECB-SBC-V2-003A|
  
 SBC-V2-004 This has been my biggest project so far. I took the SBC-V2 and added on board PPIDE circuit, added a simple sound circuit, on board super capacitor and standardized the serial connector with the Mark IV board. This was the the first real routing I have done and my original intention was just to correct the original reset flaw in the SBC-V2-003 and it grew from there. Contributed schematic for the AS6C4008 schematic to Kicad library. SBC-V2-004 This has been my biggest project so far. I took the SBC-V2 and added on board PPIDE circuit, added a simple sound circuit, on board super capacitor and standardized the serial connector with the Mark IV board. This was the the first real routing I have done and my original intention was just to correct the original reset flaw in the SBC-V2-003 and it grew from there. Contributed schematic for the AS6C4008 schematic to Kicad library.
  
 {{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​images/​sbc-v2-004q.png?​nolink&​800x600}} {{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​images/​sbc-v2-004q.png?​nolink&​800x600}}
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 +This is the next iteration with clock divider circuit for switchable speeds. ​ Intended for MSX compatability but not sure how useful it will be.
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 +{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​images/​images/​ecb-sbc-v004v.png?​nolink&​800x600}}
  
 ECB-RAM FLOPPY A really interesting design by Wolfgang Kabatze. Once again, documentation,​ Gerbers and Kicad files had to be recovered and a new wiki site built. Came across a few fake RAM chips with this build. Programming the AT-TINY made this a new learning experience. Contributed a small change to ROMWBW to display the write protect status. ECB-RAM FLOPPY A really interesting design by Wolfgang Kabatze. Once again, documentation,​ Gerbers and Kicad files had to be recovered and a new wiki site built. Came across a few fake RAM chips with this build. Programming the AT-TINY made this a new learning experience. Contributed a small change to ROMWBW to display the write protect status.
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-ECB-SCG There is a minor design flaw with the board in that the volume trim pots circuits are reversed which can cause output to be distorted if set incorrectly. Contributed an update board and schematic to address the errata for this board. Contributed beep code to ROMWBW. The colour output is not that great on my board which may be due to N\its NTSC output format or there may still be an unresolved issue. The sound output from this board is awesome but it didn't start out that way. It took me almost a year to figure out one of my jumpers was set incorrectly and was creating a distorted output.+ECB-SCG There is a minor design flaw with the board in that the volume trim pots circuits are reversed which can cause output to be distorted if set incorrectly. Contributed an update board and schematic to address the errata for this board. Contributed beep code to ROMWBW. The colour output is not that great on my board which may be due to its NTSC output format or there may still be an unresolved issue. The sound output from this board is awesome but it didn't start out that way. It took me almost a year to figure out one of my jumpers was set incorrectly and was creating a distorted output.
  
 {{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​images/​ecb-scg-003.png?​nolink&​800x600}} {{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​b1ackmai1er/​images/​ecb-scg-003.png?​nolink&​800x600}}
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builderpages/b1ackmai1er/start.1557869957.txt.gz · Last modified: 2019/05/14 17:39 by b1ackmai1er
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