6809 SBC for Externally Clocked 6809

Needed to test a few 6809E cpus , and try writing some 6809 code. Found this nkce project on github. Assembled one board , the project has a slight issue , the two serial ports are wired one DTE and one DCE , this caused me a little confusion. I also forgot that 6809 boot vector is at the top of memory , so needed to place boot code at the last addresses in flash. Enjoyable project.

Jan 07,2021
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1.6mm
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