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boards:ecb:2s1p:start [2020/01/17 07:20]
rcini
boards:ecb:2s1p:start [2021/10/10 00:08]
b1ackmai1er
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 {{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/boards/ecb/2s1p/ecb_2s1p_001.png?nolink&800x484|ECB 2S1P Board Plot}} {{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/boards/ecb/2s1p/ecb_2s1p_001.png?nolink&800x484|ECB 2S1P Board Plot}}
  
-{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/boards/ecb/2s1p/img_6854.jpg?nolink&800x600|EBC 2S1P board as-built.}}+{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/boards/ecb/2s1p/img_6854.jpg?nolink&800x1067|EBC 2S1P board as-built.}}
  
 ===== Overview ===== ===== Overview =====
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 ===== Software ===== ===== Software =====
  
-The UAR/T used is a derivative of the Intel 8251 UAR/T so most basic code will run without significant modification. To use with MS-DOS on the SBC-188, TSR (terminate and stay resident) drivers are required to provide replacement BIOS functions (BIOS-046 and earlier does not have any code to support the board). Additionally, most DOS programs assume that the serial and parallel ports live at specific I/O port addresses and are interrupt-capable. On versions of the SBC-188 prior to version 3, the interrupt system doesn't conveniently allow for interrupt-driven serial ports such as the 2S1P, so the board has to be run in "polled" mode. It's expected that version 3 of the SBC-188 will have a usable/trappable interrupt that can be connected to the 2S1P to allow for most software to work; the I/O port allocation will still be an issue.+The UAR/T used is a derivative of the Intel 8251 UAR/T so most basic code will run without significant modification. To use with MS-DOS on the SBC-188, TSR (terminate and stay resident) drivers are required to provide replacement BIOS functions (none of the BIOSes, including the latest BIOS-050, do not have any code to support the board). Additionally, most DOS programs assume that the serial and parallel ports live at specific I/O port addresses and are interrupt-capable. On versions of the SBC-188 prior to version 3, the interrupt system doesn't conveniently allow for interrupt-driven serial ports such as the 2S1P, so the 2S1P has to be run in "polled" mode. It's expected that version 3 of the SBC-188 will have a usable/trappable interrupt that can be connected to the 2S1P to allow for most software to work; the I/O port and interrupt selection allocation will still be an issue but that's easier to deal with.
  
-The plan is to release some of the software shortly, but it should be considered "beta" quality.+The software should be considered "beta" quality.
  
 ===== Resources ===== ===== Resources =====
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 |{{:boards:ecb:2s1p:ecb_2s1p-1.0-001_pcb.pdf|ECB 2S1P-1.0-001_pcb.pdf}} |500Kb|2019-12-27| |{{:boards:ecb:2s1p:ecb_2s1p-1.0-001_pcb.pdf|ECB 2S1P-1.0-001_pcb.pdf}} |500Kb|2019-12-27|
 |{{:boards:ecb:2s1p:ecb_2s1p-1.0-001.zip|ECB 2S1P-1.0-001_design.zip}} |2.1Mb|2020-01-12| |{{:boards:ecb:2s1p:ecb_2s1p-1.0-001.zip|ECB 2S1P-1.0-001_design.zip}} |2.1Mb|2020-01-12|
 +|{{:boards:ecb:2s1p:ecb_driver_rel01.zip|ECB 2S1P_driver_rel01.zip}} |39Kb|2020-01-17|
  
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boards/ecb/2s1p/start.txt · Last modified: 2021/10/10 00:08 by b1ackmai1er
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