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Additional current range(s) #41

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prasimix opened this issue Jun 17, 2017 · 1 comment
Closed

Additional current range(s) #41

prasimix opened this issue Jun 17, 2017 · 1 comment
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enhancement P3-major
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r5B13

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The Power board r5B12 comes with 16-bit I/O expander (IC8) introduced to handle switching between two current range (0-500 mA and 0-5 A). That leave six I/O pins unassigned that could be used for controlling additional current ranges (i.e. 0-50 mA and 0-5 mA). With current PCB layout (and size) at least one could be easily added. Adding support for more current ranges in firmware also shouldn't be a problem.
@prasimix prasimix changed the title Additional current range Additional current range(s) Jun 17, 2017
@prasimix prasimix added this to the r5B13 milestone Jul 25, 2017
@prasimix prasimix self-assigned this Aug 14, 2017
prasimix pushed a commit that referenced this issue Sep 24, 2017
BOM r5B13, #40, #41, #42, #43, #44, #46, #56
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Third current range is added for 0-50 mA. This range is not tested and support for it has to be added into firmware! If not used, remove Q34 and place zero-ohm jumper on R179.

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