What is uClinux?
Getting started with uClinux
uCsimm Hardware Project
bFLT and elf2flt
uClinux-dist on SourceForge
The uCsimm module is a microcontroller module built specifically for the uClinux Operating System. It stands an inch high, with a standard 30-pin SIMM form factor. The uCsimm is a perfect microcontroller for embedded systems that require stability, single process functionality, and ethernet capability, in a compact and modular form factor. There are innumerable uses for the uCsimm, but in the past, it has been used as everything from a webserver to a Programmable Logic Controller.
The uCsimm: Good things come in small packages.
The uCsimm is driven by a Motorola DragonBall 68EZ328 processor, and comes well equiped with 2 MB of FLASH and 8Mb of DRAM. We have also included a 10Base-T ethernet and RS 232 high-speed serial. There is also a built-in LCD panel driver capable of displaying QVGA at a resolution of 320 x 240.
We have also taken a few pictures of the first completed prototypes. You can view them at http://www.uclinux.com/uC68EZ328.
For a pin out description, read this product brief: http://www.uclinux.com/uC68EZ328/uC68EZ328.pdf.
If you would like join the uCsimm mailing list please send an email to ucsimm-request@uClinux.com with the command "subscribe ucsimm" in the body of the message, or click [here] if you have browser-supported email.
For those interested, the board has:
The module has been tested with a port of RTLinux 0.9J. A copy of an early oscilloscope tracing can be found on the uCsimm Real-time port page.
- a 16MHz 68EZ328 DragonBall Microcontroller
- 2 MB FLASH ROM
- 8 MB DRAM
- 21 General Purpose I/O pins (or up to 13 with a graphic LCD panel enabled)
- a built-in display driver, capable of driving a monochrome LCD panel up to QVGA resolution (640x480)
- 10Base-T Ethernet Controller Chip
- RS-232 Serial Support
- High speed (1Mbit/sec) I2C or SPI 3 wire serial
- a 3.3 Volt draw. When idle, it draws only microamps.
To get started, all you need is a 3.3Volt power supply, a SIMM socket and a serial cable.