README.rst 3.2 KB

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  1. Arduino TMC26X Stepper Motor Controller Library
  2. ===============================================
  3. License
  4. -------
  5. TMC26XStepper.cpp - - TMC 260/261/262 Stepper library for Wiring/Arduino
  6. based on the stepper library by Tom Igoe, et. al.
  7. Copyright (c) 2011, Interactive Matter, Marcus Nowotny
  8. Permission is hereby granted, free of charge, to any person obtaining a copy
  9. of this software and associated documentation files (the "Software"), to deal
  10. in the Software without restriction, including without limitation the rights
  11. to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12. copies of the Software, and to permit persons to whom the Software is
  13. furnished to do so, subject to the following conditions:
  14. The above copyright notice and this permission notice shall be included in
  15. all copies or substantial portions of the Software.
  16. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17. IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18. FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19. AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20. LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21. OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22. THE SOFTWARE.
  23. About
  24. -----
  25. The TMC26X is a stepper motor controller for bipolar stepper motors. From the trinamic web site:
  26. The TMC262 is the first energy efficient high current high precision microstepping driver
  27. IC for bipolar stepper motors. The unique high resolution sensorless load detection stallGuard2™
  28. is used to for the world’s first integrated load dependent current control feature called coolStep™.
  29. The ability to read out the load and detect an overload makes the TMC262 an optimum choice for
  30. drives where a high reliability is desired at a low cost. The new patented spreadCycle PWM mixed
  31. decay chopper scheme ensures best zero crossing performance as well as high speed operation.
  32. The TMC262 can be driven with Step & Direction signals as well as by serial SPI™ interface.
  33. Using the microPlyer allows to operate the motor with highest 256 μStep smoothness reducing the
  34. input frequency to 16 μSteps. A full set of protection and diagnostic features makes this device
  35. very rugged. It directly drives external MOSFETs for currents of up to 6A. This way it reaches
  36. highest energy efficiency and allows driving of a high motor current without cooling measures
  37. even at high environment temperatures.
  38. The unique features of the TMC26X are that everything can (and must) be controlled in software:
  39. * the motor current
  40. * microstepping
  41. * stall protection
  42. * current reduction according to load
  43. * stallGuard2™ sensorless load detection
  44. * coolStep™ load dependent current control
  45. * spreadCycle hysteresis PWM chopper
  46. * microPlyer 16-to-256 μStep multiplier
  47. * full protection and diagnostics
  48. This makes the TMC26X a bit harder to use than other stepper motors but much more versatile.
  49. This library resolves all the complicated stuff so that you can use TMC26X straight away.
  50. Furthermore, all the settings are implemented in high level interfaces so that configuring your
  51. motor is a breeze.
  52. How to use
  53. ----------
  54. Check out the Setup Guide here:
  55. And the How To here: