Data General microNOVA: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
(→Cards) |
||
| Line 6: | Line 6: | ||
!Card Number | !Card Number | ||
!Card Type | !Card Type | ||
!Card Photo | |||
|- | |- | ||
!9 | !9 | ||
| | |||
| | | | ||
| | | | ||
|- | |- | ||
!8 | !8 | ||
| | |||
| | | | ||
| | | | ||
| Line 18: | Line 21: | ||
|107 000648 03 | |107 000648 03 | ||
|Serial | |Serial | ||
|[[File:Data General microNOVA - Async Card 1.jpg|frameless|150x150px]] | |||
|- | |- | ||
!6 | !6 | ||
|107 000648 06 | |107 000648 06 | ||
|Serial | |Serial | ||
|[[File:Data General microNOVA - Async Card 2.jpg|frameless|150x150px]] | |||
|- | |- | ||
!5 | !5 | ||
|107 000759 01 | |107 000759 01 | ||
|Memory | |Memory | ||
|[[File:Data General microNOVA - Memory Card 2.jpg|frameless|150x150px]] | |||
|- | |- | ||
!4 | !4 | ||
|107 000759 01 | |107 000759 01 | ||
|Memory | |Memory | ||
|[[File:Data General microNOVA - Memory Card 1.jpg|frameless|150x150px]] | |||
|- | |- | ||
!3 | !3 | ||
|107 000624 01 | |107 000624 01 | ||
|Memory | |Memory | ||
|[[File:Data General microNOVA - MEM Card 3.jpg|frameless|150x150px]] | |||
|- | |- | ||
!2 | !2 | ||
|107 000624 01 | |107 000624 01 | ||
|Memory | |Memory | ||
|[[File:Data General microNOVA - MEM Card 2.jpg|frameless|150x150px]] | |||
|- | |- | ||
!1 | !1 | ||
|107 000533 03 | |107 000533 03 | ||
|CPU | |CPU | ||
|[[File:Data General microNOVA - CPU Card.jpg|frameless|150x150px]] | |||
|} | |} | ||
== Power == | == Power == | ||
Power Connector: <nowiki>https://www.mouser.com/ProductDetail/538-50-84-1120</nowiki> | Power Connector: <nowiki>https://www.mouser.com/ProductDetail/538-50-84-1120</nowiki> | ||
| Line 76: | Line 76: | ||
On the first day of attempting to use the MicroNova after bringing up the PSU with Usagi Electric it behaved inconsistently when being fully rebooted and would not always present the Debug Console (Memory Monitor). After some contemplating and manual reading I think there are three avenues to troubleshoot for a potential cause for this: | On the first day of attempting to use the MicroNova after bringing up the PSU with Usagi Electric it behaved inconsistently when being fully rebooted and would not always present the Debug Console (Memory Monitor). After some contemplating and manual reading I think there are three avenues to troubleshoot for a potential cause for this: | ||
# There is a memory issue with one of the four RAM cards that is preventing the system from operating correctly | # <s>There is a memory issue with one of the four RAM cards that is preventing the system from operating correctly</s> | ||
# The previously extremely dirty backplane needs more cleaning to have consistent contact | # <s>The previously extremely dirty backplane needs more cleaning to have consistent contact</s> | ||
# The powerfail option I removed the batteries from is behaving oddly on poweroff and some CPU/RAM state may be held by the giant caps | # <s>The powerfail option I removed the batteries from is behaving oddly on poweroff and some CPU/RAM state may be held by the giant caps</s> | ||
# The card bus has differential connectors that need to be terminated. The external drives share the differential signals and are daisy chained, the last drive in the chain has the terminator on it. | |||
Option 3 is the most recent theory based on reading through the manual ( 015-000050-00_microNOVA_Programmers_Reference_197602.pdf ) and reading the description of the powerfail option. | Option 3 is the most recent theory based on reading through the manual ( 015-000050-00_microNOVA_Programmers_Reference_197602.pdf ) and reading the description of the powerfail option. | ||
== | == Addressable Locations == | ||
''Note: This is a 4-bit bitslice machine that uses '''octal''' notation, not hex. Digit values range from 0 to 7.'' | ''Note: This is a 4-bit bitslice machine that uses '''octal''' notation, not hex. Digit values range from 0 to 7.'' | ||
{| class="wikitable" | {| class="wikitable" | ||
Revision as of 23:38, 21 February 2025
Data General microNOVA
| General Info | |
|---|---|
| Manufacturer | Data General |
| Condition | Working |
| QR Code | |
 | |
Cards
| Slot # | Card Number | Card Type | Card Photo |
|---|---|---|---|
| 9 | |||
| 8 | |||
| 7 | 107 000648 03 | Serial | 
|
| 6 | 107 000648 06 | Serial | 
|
| 5 | 107 000759 01 | Memory | 
|
| 4 | 107 000759 01 | Memory | 
|
| 3 | 107 000624 01 | Memory | 
|
| 2 | 107 000624 01 | Memory | 
|
| 1 | 107 000533 03 | CPU | 
|
Power
Power Connector: https://www.mouser.com/ProductDetail/538-50-84-1120
| Current Rating | Diameter | Length | |
|---|---|---|---|
| 120 VAC | 5A | 6.3mm | 32mm |
| 240 VAC | 3A | 6.3mm | 32mm |
Startup Inconsistency
On the first day of attempting to use the MicroNova after bringing up the PSU with Usagi Electric it behaved inconsistently when being fully rebooted and would not always present the Debug Console (Memory Monitor). After some contemplating and manual reading I think there are three avenues to troubleshoot for a potential cause for this:
There is a memory issue with one of the four RAM cards that is preventing the system from operating correctlyThe previously extremely dirty backplane needs more cleaning to have consistent contactThe powerfail option I removed the batteries from is behaving oddly on poweroff and some CPU/RAM state may be held by the giant caps- The card bus has differential connectors that need to be terminated. The external drives share the differential signals and are daisy chained, the last drive in the chain has the terminator on it.
Option 3 is the most recent theory based on reading through the manual ( 015-000050-00_microNOVA_Programmers_Reference_197602.pdf ) and reading the description of the powerfail option.
Addressable Locations
Note: This is a 4-bit bitslice machine that uses octal notation, not hex. Digit values range from 0 to 7.
| Address (Octal) | Description |
|---|---|
| 0 | Accumulator 0 |
| 1 | Accumulator 1 |
| 2 | Accumulator 2 |
| 3 | Accumulator 3 |
| 4 | The program counter of the interrupted program. |
| 5 | Stack Pointer |
| 6 | Frame Pointer |
| 7 | CPU and console controller (TTO) status where:
Bits 0-12 are reserved for future use. Bit 13 is status of the carry bit when the console debug option received control. Bit 14 is status of Interrupt On flag when the console debug option received control Bit 15 is status of TTO Done flag when the console debug option received control |
| 10 | Address of a location in the first 256 words of main memory that can be used by the console debug option for breakpoint transfers. |
| 11 | Address of the most recent breakpoint |
| 12 | User instruction at the address of the most recent breakpoint |
| 17 | Contents of memory location 0775778 |
| Address (Octal) | Description |
|---|---|
| 2-36 | 30 word bootstrap loader storage |
| 100 | Programmed I/O bootstrap loader start location |
| 377 | NIOS instruction loop location for booting from data channel device |
| 077400-077777 | The console debug option consists of a program contained in 256 locations of read-only memory (ROM) that respond to addresses 077400-077777 |