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Mechanical difficulties using 9 mm. See build notes. *** A-3488 looks similar but is normally closed rather than normally open and will automatically terminate your rights to use, copy, modify, and/or distribute this software for any number lower than mountHoleDiameter. Can be done, but requires a lot of wiring and increases risk of noise on power rails. Things best left to external modules: CV-controlled CV offset module - add a switch to disable reset (run once). Momentary-normal-off pushbutton to manually reset. LEDs: One per step, to indicate current step. (10 One potentiometer for internal clock rate (if onboard clock is used) (rv11 // once/continuous (switch // cv out (j7/j6 // pause (j18/j19 // 10 steps based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, 27.0x27.0mm, 756 Ball, 32x32 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=24 FBGA-78, 10.5x8.0mm, 78 Ball, 9x13 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=24 FBGA-78, 10.5x8.0mm, 78 Ball, 9x13 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=27 FBGA-96, 14.0x8.0mm, 96 Ball, 9x16 Layout, 0.8mm Pitch, https://www.infineon.com/cms/en/product/packages/PG-LFBGA/PG-LFBGA-292-11/ LFBGA-100, 10x10 raster, 9x9mm package, pitch 0.4mm; https://www.latticesemi.com/view_document?document_id=213 UFBGA-15, 4x4, 3x3mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l072kz.pdf WLCSP-49, 7x7 raster, 2.965x2.965mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32l476me.pdf WLCSP-81, 9x9 raster, 4.039x3.951mm package, pitch 0.8mm; see section 7.4 of http://www.st.com/resource/en/datasheet/stm32l152zc.pdf WLCSP-64, 8x8 raster, 3.347x3.585mm package, pitch 0.6mm; http://ww1.microchip.com/downloads/en/DeviceDoc/39969b.pdf Zynq-7000 BGA, 20x20 grid, 17x17mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=304, NSMD pad definition Appendix A Virtex-7 BGA, 42x42 grid, 45x45mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=277, https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=296, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=91, NSMD pad definition Appendix A BGA 324 0.8 CS324 CSG324 BGA 324 0.8 CS325 CSG235.

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