a2232
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a2232 [2018/08/25 16:04] – wiki_admin | a2232 [2018/08/30 22:24] – external edit 127.0.0.1 | ||
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Up to 57600 on all ports using a custom device and hardware modification: | Up to 57600 on all ports using a custom device and hardware modification: | ||
- | Several sites also refer to mods for up to 115200 bps speeds (on all ports? Link?). Amiga.resource.cx also has a photo of a board with a title "Rev 6 board with RTS/CTS handshake mod". Another modification is to replace the 1.84 Mhz oscillator with a 3.68 Mhz one. This doubles the baud rates but the software won't know about this so the user must keep this in mind when using the board. | + | Several sites also refer to mods for up to 115200 bps speeds (on all ports? Link? |
+ | |||
+ | Amiga.resource.cx also has a photo of a board with a title "Rev 6 board with RTS/CTS handshake mod". Another modification is to replace the 1.84 Mhz oscillator with a 3.68 Mhz one. This doubles the baud rates but the software won't know about this so the user must keep this in mind when using the board. | ||
===== Connectors, pinouts and cables ===== | ===== Connectors, pinouts and cables ===== | ||
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// | // | ||
- | ===== Usage ===== | + | ===== Using the serial ports ===== |
+ | |||
+ | ==== Workbench ==== | ||
In Workbench the ports can be accessed using the serial.device driver (ver 33.11 from 1990 and newer, install disk available at Amiga.resource.cx) with the following unit numbers: | In Workbench the ports can be accessed using the serial.device driver (ver 33.11 from 1990 and newer, install disk available at Amiga.resource.cx) with the following unit numbers: | ||
- | Unit 0 -> default port (set in Prefs serial | + | <table label> |
- | Unit 1 -> Amiga' | + | < |
- | Unit 2 -> A2232' | + | |Unit 0|default port (set in Workbench' |
- | Unit 3 -> A2232' | + | |Unit 1|Amiga' |
- | Unit 4 -> A2232' | + | |Unit 2|A2232' |
- | Unit 5 -> A2232' | + | |Unit 3|A2232' |
- | Unit 6 -> A2232' | + | |Unit 4|A2232' |
- | Unit 7 -> A2232' | + | |Unit 5|A2232' |
- | Unit 8 -> A2232' | + | |Unit 6|A2232' |
+ | |Unit 7|A2232' | ||
+ | |Unit 8|A2232' | ||
+ | </ | ||
If several A2232 boards are installed, the second board' | If several A2232 boards are installed, the second board' | ||
- | In Amiga UNIX, the first port of the A2232 is known as / | + | ==== Amix ==== |
+ | |||
+ | In Amiga UNIX, the first port of the A2232 is known as **/ | ||
+ | |||
+ | Probably the main selling point of the A2232 was the ability to connect several serial terminals to an AMIX machine. To start a login shell at any of the serial ports, use pmadm: **pmadm -e -p serial -s ql00** This enables shell in the first port at the default speed of 9600 bps (defined as the ' | ||
- | Probably the main selling point of the A2232 was the ability to connect several serial terminals to an AMIX machine. To start a login shell at any of the serial ports, use pmadm: pmadm -e -p serial -s ql00 This enables shell in the first port at the default speed of 9600 bps (defined as the ' | + | A real vintage dumb terminal (or a modern PC running terminal emulator, or a device like PockeTerm from Briel Computers) can be connected to the port and used to log into the machine. |
- | == Sources: == | + | === Sources |
- | A2232 System schematics | + | * A2232 System schematics |
- | http:// | + | |
- | http:// | + | |
- | Wikimedia Commons (mini 8-pin DIN diagram) | + | |
- | Thanks to mackbw on English Amiga Board for information on the pinouts! | + | |
a2232.txt · Last modified: 2021/09/19 18:00 by 127.0.0.1