Difference between revisions of "Schneiderware"

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(I/O Ports)
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Databoxes: '''UHR8000''' RTC-RAM-driver in 10-1986 (hex listing, plus [[Hisoft Devpac]] source code) (caution this version uses incorrect I/O addresses FBE1-FBE3), '''UHRC000X''' RTC-ROM-driver in 4-1987 (this version uses correct I/O addresses FBE2-FBE4). Uni-PIO examples in 12-1986 (=only a few basic lines). There seem to be no Centronics and V/24 drivers included in databoxes.
 
Databoxes: '''UHR8000''' RTC-RAM-driver in 10-1986 (hex listing, plus [[Hisoft Devpac]] source code) (caution this version uses incorrect I/O addresses FBE1-FBE3), '''UHRC000X''' RTC-ROM-driver in 4-1987 (this version uses correct I/O addresses FBE2-FBE4). Uni-PIO examples in 12-1986 (=only a few basic lines). There seem to be no Centronics and V/24 drivers included in databoxes.
  
== I/O Ports ==
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A summary of the I/O ports, Schematics, and Photos can be found here: [[Schneiderware Summary]].
 
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{|{{Prettytable|width: 700px; font-size: 2em;}}
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|Address (default) || Address (alternate) || Usage
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|-
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|DFxxh || N/A   || [[Schneiderware Pseudo ROM|Schneiderware RAM/EPROM]] - Expansion ROM bank number (W)<br>Battery-backed SRAM and/or EPROM are selected when the bank-number matches the jumper-selected values; the memory is then mapped to C000h..FFFFh (in case of READing one must also enable upper ROM via Gate Array). The bank number decoding is a bit strange:
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* EPROM/Read bank: All 8 bits decoded (bank 00h..FFh)
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* SRAM/Read bank: Only lower 4 bits decoded (bank X0h..XFh)
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* SRAM/Write bank: Only lower 4 bits decoded (bank X0h..XFh)
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The SRAM/Write mode doesn't disable the internal RAM in the CPC, so writes are going both to SRAM and normal RAM at C000-FFFF, that no matter if upper ROM is enabled/disabled via Gate Array; the author recommended to map VRAM to 4000-7FFF via CRTC registers, in order to prevent video dirt during writing.
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|-
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|F8E0h || F8F0h (later redefined to F8E4h) || [[Schneiderware Centronics Port]] 8255 PPI Port A (data)
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|-
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|F8E1h || F8F1h (later redefined to F8E5h) || [[Schneiderware Centronics Port]] 8255 PPI Port B (unused)
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|-
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|F8E2h || F8F2h (later redefined to F8E6h) || [[Schneiderware Centronics Port]] 8255 PPI Port C (busy/strobe)<br>(bit7=busy, bit6-1=unused, bit0=strobe; strobe is externally inverted)<br>(autolf is wired to GND, all other control/status signals are not connected)
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|-
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|F8E3h || F8F3h (later redefined to F8E7h) || [[Schneiderware Centronics Port]] 8255 PPI Control
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|-
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|F8E8h || F8F0h, F8F8h || [[Schneiderware Uni-PIO]] 8255 PPI #1 Port A ('''without''' pull-ups, with red LEDs)
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|-
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|F8E9h || F8F1h, F8F9h || [[Schneiderware Uni-PIO]] 8255 PPI #1 Port B ('''with''' pull-ups and green LEDs)
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|-
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|F8EAh || F8F2h, F8FAh || [[Schneiderware Uni-PIO]] 8255 PPI #1 Port C (lower 4bit '''without''' pull-ups and red LEDs, upper 4bit '''with''' pull-ups and green LEDs)
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|-
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|F8EBh || F8F3h, F8FBh || [[Schneiderware Uni-PIO]] 8255 PPI #1 Control
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|-
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|F8ECh || F8F4h, F8FCh || [[Schneiderware Uni-PIO]] 8255 PPI #2 Port A (without pull-ups or LEDs)
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|-
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|F8EDh || F8F5h, F8FDh || [[Schneiderware Uni-PIO]] 8255 PPI #2 Port B (without pull-ups or LEDs)
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|-
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|F8EEh || F8F6h, F8FEh || [[Schneiderware Uni-PIO]] 8255 PPI #2 Port C (without pull-ups or LEDs)
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|-
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|F8EFh || F8F7h, F8FFh || [[Schneiderware Uni-PIO]] 8255 PPI #2 Control
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|-
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|F9E0h || F9E2h || [[Schneiderware V/24 Interface]] 8251 USART Data
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|-
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|F9E1h || F9E3h || [[Schneiderware V/24 Interface]] 8251 USART Control
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|-
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|F9ECh || F9E8h || [[Schneiderware V/24 Interface]] 8253 Timer 0 (TX clock)
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|-
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|F9EDh || F9E9h || [[Schneiderware V/24 Interface]] 8253 Timer 1 (RX clock)
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|-
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|F9EEh || F9EAh || [[Schneiderware V/24 Interface]] 8253 Timer 2 (unused)
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|-
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|F9EFh || F9EBh || [[Schneiderware V/24 Interface]] 8253 Timer Control<br>Note: Timer clock input is jumper select-able: 2MHz (default), or 1MHz
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|-
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|FAE0h || N/A || [[Schneiderware Analog Converter]] ADC 0848 A/D Converter (R/W)<br>Read: Get 8bit data from selected channel<br>Write: Select channel & mode; bit0..2=channel (0..7), bit3..4=mode, bit5-7=unused<br>
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* Mode 0 (or 1) - Differential: Plus=Channel(N), Minus=Channel(N XOR 1)
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* Mode 2 - Single-Ended: Plus=Channel(N) and Minus=AGND
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* Mode 3 - Pseudo-Differential: Plus=Channel(N) and Minus=Channel(7)
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|-
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|FAE1h || N/A || [[Schneiderware Analog Converter]] DAC 0832 D/A Converter #1 (W)<br>Write: 8bit data
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|-
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|FAE2h || N/A || [[Schneiderware Analog Converter]] DAC 0832 D/A Converter #2 (W)<br>Write: 8bit data
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|-
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|FAF0h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #1 Port A (Data, 8bit)
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|-
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|FAF1h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #1 Port B (Address LSBs, 8bit)
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|-
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|FAF2h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #1 Port C (Address MSBs, 7bit; bit7=unused)
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|-
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|FAF3h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #1 Control
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|-
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|FAF4h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #2 Port A (bit0-7=unused)
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|-
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|FAF5h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #2 Port B (bit0-5=unused, bit6=Red LED, bit7=Green LED)
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|-
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|FAF6h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #2 Port C (programming signals, 8bit)
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|-
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|FAF7h || N/A || [[Schneiderware EPROM Burner]] 8255 PPI #2 Control
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|-
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|FBE2h || BUGGED:FBE1h || [[Schneiderware Real Time Clock]] Index/Control (W)
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|-
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|FBE3h || BUGGED:FBE2h || [[Schneiderware Real Time Clock]] Data 4bit (W)
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|-
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|FBE4h || BUGGED:FBE3h || [[Schneiderware Real Time Clock]] Data 4bit (R)
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|-
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|}
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== Schematics ==
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<gallery>
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File:Schneiderware Basisplatine Pinouts.png|Motherboard
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File:Schneiderware Centronics Schematic.png|Centronics
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File:Schneiderware Uni-PIO Schematic.png|Uni-PIO
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File:Schneiderware RS232 Schematic.png|RS232
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File:Schneiderware Power Supply Schematic.png|Power Supply
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File:Schneiderware A-D and D-A Converter Schematic.png|DAC/ADC
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File:Schneiderware RTC Schematic.png|RTC
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File:Schneiderware SRAM and EPROM Schematic.png|SRAM/EPROM
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File:Schneiderware EPROM Burner Schematic.png|Eprom Burner
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</gallery>
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== Pictures ==
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<gallery>
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File:Schneiderware 2 Basisplatine (component side).jpg |Schneiderware #2<br>Basisplatine (component side)
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File:Schneiderware 2 Basisplatine (solder side).jpg    |Schneiderware #2<br>Basisplatine (solder side)
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File:Schneiderware 2 Centronics (component side).jpg  |Schneiderware #2<br>Centronics (component side)
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File:Schneiderware 2 Centronics (solder side).jpg      |Schneiderware #2<br>Centronics (solder side)
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File:Schneiderware 3 V24 (component side).jpg          |Schneiderware #3<br>V24 (component side)
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File:Schneiderware 3 V24 (solder side).jpg            |Schneiderware #3<br>V24 (solder side)
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File:Schneiderware 4 Netzteil (component side).jpg    |Schneiderware #4<br>Supply/Netzteil (only +12V/-12V components installed)
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File:Schneiderware 4 Netzteil (solder side).jpg        |Schneiderware #4<br>Supply/Netzteil (solder side)
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File:Schneiderware 5 Echtzeituhr (component side).jpg  |Schneiderware #5<br>RTC/Echtzeituhr (component side)
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File:Schneiderware 5 Echtzeituhr (solder side).jpg    |Schneiderware #5<br>RTC/Echtzeituhr (solder side)
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File:Schneiderware 6 Uni-PIO (component side).jpg      |Schneiderware #6<br>Uni-PIO (component side)
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File:Schneiderware 6 Uni-PIO (solder side).jpg        |Schneiderware #6<br>Uni-PIO (solder side)
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</gallery>
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== Datasheets ==
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* [[Media:ADC0848 Datasheet.pdf|ADC0848 Datasheet.pdf]] - 8 channel A/D converter
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* [[Media:DAC0832 Datasheet.pdf|DAC0832 Datasheet.pdf]] - 1 channel D/A converter
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* [[Media:M5832 Datasheet.pdf|M5832 Datasheet]] - Real time clock
+

Revision as of 14:30, 30 September 2010

The Schneiderware series consists of several DIY projects which have been released in german magazine CPC Schneider International published by DMV. The name "Schneiderware" was probably choosen due to its double meaning ("CPC Hardware" in computer language, or "specially fitted clothing" in german language). Aside from building the hardware on one's own, one could also order printed circuit boards, either fully assembled, or plain PCBs without components.

The various boards are having special connectors, intended to be mounted on the "Basisplatine" (some kind of a motherboard with ECB Bus sockets) which allows to connect up to five Schneiderware boards to the CPCs Expansion Port; with some small modifications one could also connect the boards directly to the Expansion Port (the motherboard is merely an Y-cable-like adaptor without electrical components, so one doesn't really need it).

Along with the Schneiderware series, there has been also a "CPC Schneider International 02/1987, Page ??-??, 7 MIDI Interface" (advertised together with the Schneiderware PCBs, but not part of the Schneiderware series).

Databoxes: UHR8000 RTC-RAM-driver in 10-1986 (hex listing, plus Hisoft Devpac source code) (caution this version uses incorrect I/O addresses FBE1-FBE3), UHRC000X RTC-ROM-driver in 4-1987 (this version uses correct I/O addresses FBE2-FBE4). Uni-PIO examples in 12-1986 (=only a few basic lines). There seem to be no Centronics and V/24 drivers included in databoxes.

A summary of the I/O ports, Schematics, and Photos can be found here: Schneiderware Summary.