here you will find the files related to the hardware aspect of SIMtrace.

the hardware for SIMtrace (1) and SIMtrace 2 is almost the same.
the main difference is the micro-controller.
SIMtrace (1) uses an Atmel AT91SAM7S micro-controller.
This micro-controller has been deprecated for some time and needed to be replaced.
SIMtrace 2 uses am Atmal ATSAM3S.
Because the micro-controller architecture is difference, the firmware has been rewritten from scratch.
The firmware for SIMtrace 2 will not work on SIMtrace boards with AT91SAM7S micro-controllers.

folders
=======

- releases: archives containing schematic and fabrication output of the various SIMtrace versions
- kicad: the source files for the hardware design (schematic and board layout)
- pcd: schematic and fabrication output of the current SIMtrace version
- datasheet: collection of datasheets for parts used by SIMtrace
- geda: an initial trial of redesigning SIMtrace, abandoned

changelog
=========

v1.5
----

updated schematic:
- made more readable
- uses SAM3S micro-controller for SIMtrace 2
- has several parts marked as Do Not Place (DNP) since they are not required anymore by the SAM3S

the board layout is the same as v1.4.
you just need to use the updated BOM with new micro-controller and fewer parts.

see SIMtrace.csv for DNP parts.
the BOM.ods is outdated but still provided some links for the parts.
