Radisys Type 2 EPC
Embedded Personal Computer (EPC) Index
EXM - EXpansion Module
EPC-26A / 27 Manuals
Inserting an EPC into an EXM Carrier
NOTE: Make sure that power to your system is off. The EPC-26A / 27 is not designed to be inserted or removed from a live system.
NOTICE: Use of any of the files or information on this page is AT YOUR OWN RISK. If you want a guarantee on this stuff, seek out any repair / service company that supports EXM / EPC devices.
If you have any files or experience with these devices, you can reach me HERE
EPC-26A / 27 CPU (-26A 486DX2-50, -27 486DX4-100 Enhanced, Pico Power chipset)
Jumpers
H2 Reserved for future use.
H3 Use to enable writing to flash
H4 Do not use
H5 Forces a hosted re-flash of the BIOS. Must jumper H3 also.
EPC-26A / 27 Memory Amounts
0MB Flash Memory, 4MB, 8MB, 16MB or 32MB SIMM, max 32MB.
2MB Flash Memory, 4MB, 8MB, 16MB or 32MB SIMM, max 32MB.
4MB Flash Memory, 4MB, 8MB, 16MB or 32MB SIMM, max 32MB.
NOTE: The Flash and SRAM memory may be formatted, and each may act as a drive. The Flash may be made bootable, but that prevents any IDE drive from being C: To enable FlashROM to be used as a drive, go to the Advanced menu.
To the best of my knowledge, Flash or SRAM can't be added to the total memory.
Floppy Types Supported
360K, 720K, 1.2 MB, 1.44MB, and 2.88 MB. BUT... If you look at the EMC-FDM, it appears to have a max 500Kbit/s transfer rate, which suggests to me that it tops out at 1.44MB floppies.
Main Setup Please refer to Chapter 2, BIOS Configuration
Diskette can be internal EMC-FDM or external EXM -9 or -16.
EPC-26A / 27 supports 360K, 720K, 1.2 MB, and 2.88 MB.
NOTE: The EMC-FDM has a 16MHz oscillator, and tops out with 1.44MB.
Main > IDE Adapter Submenu
There appears to be issues with some levels of BIOS and drive size.
Main > Boot Sequence Submenu
Main > Numlock (Keyboard Features) Submenu
Main > Advanced Menu
Integrated Peripherals Sub-Menu - Configures COM ports on EPC CPU module.
Memory Shadow Copy ROM into RAM
Large Disk Access Mode: > 528 MB, [DOS] - DOS, [Other] - other operating systems.
Built-in BIOS Extension Configuration Enables Flash memory to appear as a drive.
Main > Advanced > Integrated Peripherals Submenu
Configure COM ports on EPC CPU module.
Main > Advanced > Memory Shadow Submenu
Main > EXM Menu
Each EXM module has an ID, Option Byte 1 (OB1):/ Option Byte 2 (OB2)
Empty slots should show FF 00 00 indicating that no EXM is present
The ID / OB1 / OB2 information is in Chapter 2 of each EXM's documentation.
NOTE: The system does NOT populate these values! You must enter them manually...
Main > Exit Menu
