add README wit hardwar eproject details
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here you will find the files related to the hardware aspect of SIMtrace.
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the hardware for SIMtrace (1) and SIMtrace 2 is almost the same.
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the main difference is the micro-controller.
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SIMtrace (1) uses an Atmel AT91SAM7S micro-controller.
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This micro-controller has been deprecated for some time and needed to be replaced.
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SIMtrace 2 uses am Atmal ATSAM3S.
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Because the micro-controller architecture is difference, the firmware has been rewritten from scratch.
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The firmware for SIMtrace 2 will not work on SIMtrace boards with AT91SAM7S micro-controllers.
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folders
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=======
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- releases: archives containing schematic and fabrication output of the various SIMtrace versions
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- kicad: the source files for the hardware design (schematic and board layout)
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- pcd: schematic and fabrication output of the current SIMtrace version
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- datasheet: collection of datasheets for parts used by SIMtrace
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- geda: an initial trial of redesigning SIMtrace, abandoned
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changelog
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=========
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v1.5
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----
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updated schematic:
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- made more readable
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- uses SAM3S micro-controller for SIMtrace 2
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- has several parts marked as Do Not Place (DNP) since they are not required anymore by the SAM3S
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the board layout is the same as v1.4.
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you just need to use the updated BOM with new micro-controller and fewer parts.
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see SIMtrace.csv for DNP parts.
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the BOM.ods is outdated but still provided some links for the parts.
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