Hello,
I have obtained an Wyse 3315se with the intention of repurposing it - I wanted to make an MP3 jukebox. I was inspired by the article at
but it seems this terminal I have is different since the one above uses a Cyrix MediaGX type processor with CS5530 companion. Although probably not powerful enough for my jukebox app it wasnt expensive and is fun to carry on messing with it.
I intend to produce a web site when I finish but if not at least this post will be archived.
Hardware The processor in my Wyse 3315se is an AMD ELan SC400 66mhz BGA (486 a like with extra peripherals). It is connected to a Crystal CS8900 ethernet and CS4231 Sound chip. A 16C550 in addition to the built in C550 compatible UART in the ELan provides two serial ports on the back. An 82C42 keyboard controller is also mounted. Graphics are taken care of with a Cirrus GD5440 with 1Mbyte EDO Dram. An Atmel 29C020 houses the boot rom and 16V8 I assume is for address decoding.
8MByte of EDO DRAM is provided on board with a 36 pin double sided mini SIMM, on mine loaded with another 8mbyte to give 16mbyte total.An Intel 28F160 2Mbyte (16 by 1M) I assume houses the WinCE kernel and a Toshiba TC58V32AFT 4Mbyte serial device I assume provides the file system.
Although the Elan provides an IDE interface, it is not conventionally pinned out. There is a large block of Pads in the centre of the board but I havent worked out what they are for yet.
A PCMCIA interface is provided, since the Elan directly offers a PCMCIA interface. The AMD website says it is possible to boot from PCMCIA linear SRAM and the Alios project at
The toshiba 4Mbyte EEprom is puzzeling me - it is accessed in a paged manner, not linear, like a cube. More info is currently available at
Questions I am assuming the board follows PC architecture so teh x86 linux Kernel will run without any modifications. ANy reason not to assume this? I am going on pragmatism - If I were to design something similar I would like to stick as close to the reference designs from AMD.
Is it really that easy to boot from PCMCIA SRAM (once I have found the correct link) with the Elan using Alios? Does the memory card need to be 16 bit? I assume the reset vectors work since the 2mbyte memory card wraps around so will always be present in the right area of the memory?
Does the Toshiba EEprom just connect to the memory space via a few latches or Am I missing something i.e Is there an IDE emulation mode for this device? I notice some reference to 58V32 in the Linux MTD kernel archives but it is not complete, any suggestions?
Will the Kernel recognise the Cirrus graphics chip without the Video Bios?
Many Thanks, Vincent