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stepcompress: Implement print time to clock conversion in C code

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Implement the conversion from print_time to the local mcu's clock
within the C code.  This simplifies the python code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2017-09-13 08:59:26 -04:00
parent 008be18f41
commit f662445766
4 changed files with 69 additions and 52 deletions
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17
docs/Code_Overview.md
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@@ -148,7 +148,7 @@ provides further information on the mechanics of moves.
start/crusing/end velocity, and distance traveled during
acceleration/cruising/deceleration. All the information is stored in
the Move() class and is in cartesian space in units of millimeters
and seconds. Times are stored relative to the start of the print.
and seconds.
The move is then handed off to the kinematics classes: `Move.move()
-> kin.move()`
@@ -174,14 +174,13 @@ provides further information on the mechanics of moves.
stepcompress_push_const()`, or for delta kinematics:
`DeltaKinematics.move() -> MCU_Stepper.step_delta() ->
stepcompress_push_delta()`. The MCU_Stepper code just performs unit
and axis transformation (seconds to clock ticks and millimeters to
step distances), and calls the C code. The C code calculates the
stepper step times for each movement and fills an array (struct
stepcompress.queue) with the corresponding micro-controller clock
counter times for every step. Here the "micro-controller clock
counter" value directly corresponds to the micro-controller's
hardware counter - it is relative to when the micro-controller was
last powered up.
and axis transformation (millimeters to step distances), and calls
the C code. The C code calculates the stepper step times for each
movement and fills an array (struct stepcompress.queue) with the
corresponding micro-controller clock counter times for every
step. Here the "micro-controller clock counter" value directly
corresponds to the micro-controller's hardware counter - it is
relative to when the micro-controller was last powered up.
* The next major step is to compress the steps: `stepcompress_flush()
-> compress_bisect_add()` (in stepcompress.c). This code generates