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    MachineKit Stepper Driver

    stepper

    See circuit chatter and programming chatter.

    Commands

    Block (defines one trapezoid)

    • key: 129, steps to make (signed int32), entry speed (uint32) mm/min, acceleration rate (uint32) mm/min/s, acceleration steps (uint32), steps until deceleration (uint32)
    • careful, it's possible to specify a block that will not terminate (zero speed while still having steps to make)
    • returns an ack when the block is complete

    Todo

    • working on next boards, one for NEMA17s (board is out to fab) and one for NEMA23s (board is being designed)
    • if necessary, more accurate step ticker, rather than current polling technique

    MKStepper17

    • is out to fab

    MKStepper23

    p/n pairs FDD8424HCT-ND

    • schemtatic
    • nc all: stlrs
    • route logic, power looks siiiik