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bigtreetech / BIGTREETECH-SKR-V1.3

32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
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When Input Shaping is enabled, the printer does not load #589

Closed MrKuskov closed 2 months ago

MrKuskov commented 3 months ago

The BIQU B1 printer. I am compiling the Marlin firmware with the Input Shaping option enabled. 

/**
 * Input Shaping -- EXPERIMENTAL
 *
 * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
 *
 * This option uses a lot of SRAM for the step buffer. The buffer size is
 * calculated automatically from SHAPING_FREQ_[XY], DEFAULT_AXIS_STEPS_PER_UNIT,
 * DEFAULT_MAX_FEEDRATE and ADAPTIVE_STEP_SMOOTHING. The default calculation can
 * be overridden by setting SHAPING_MIN_FREQ and/or SHAPING_MAX_FEEDRATE.
 * The higher the frequency and the lower the feedrate, the smaller the buffer.
 * If the buffer is too small at runtime, input shaping will have reduced
 * effectiveness during high speed movements.
 *
 * Tune with M593 D<factor> F<frequency>:
 *
 *  D<factor>    Set the zeta/damping factor. If axes (X, Y, etc.) are not specified, set for all axes.
 *  F<frequency> Set the frequency. If axes (X, Y, etc.) are not specified, set for all axes.
 *  T[map]       Input Shaping type, 0:ZV, 1:EI, 2:2H EI (not implemented yet)
 *  X<1>         Set the given parameters only for the X axis.
 *  Y<1>         Set the given parameters only for the Y axis.
 */
#define INPUT_SHAPING_X
#define INPUT_SHAPING_Y
#if EITHER(INPUT_SHAPING_X, INPUT_SHAPING_Y)
  #if ENABLED(INPUT_SHAPING_X)
    #define SHAPING_FREQ_X  40          // (Hz) The default dominant resonant frequency on the X axis.
    #define SHAPING_ZETA_X  0.15f       // Damping ratio of the X axis (range: 0.0 = no damping to 1.0 = critical damping).
  #endif
  #if ENABLED(INPUT_SHAPING_Y)
    #define SHAPING_FREQ_Y  40          // (Hz) The default dominant resonant frequency on the Y axis.
    #define SHAPING_ZETA_Y  0.15f       // Damping ratio of the Y axis (range: 0.0 = no damping to 1.0 = critical damping).
  #endif
  #define SHAPING_MIN_FREQ  20        // By default the minimum of the shaping frequencies. Override to affect SRAM usage.
  #define SHAPING_MAX_STEPRATE 10000  // By default the maximum total step rate of the shaped axes. Override to affect SRAM usage.
  #define SHAPING_MENU                // Add a menu to the LCD to set shaping parameters.
#endif

After installing the firmware on the printer, the printer freezes on bootlogo in Marlin Mode I tried to reduce the amount of memory occupied by the function. Without the option enabled, 56% of the memory is allocated, with default settings of 75%, reduced the settings to 60%. 

#define SHAPING_MIN_FREQ  20        // By default the minimum of the shaping frequencies. Override to affect SRAM usage.
  #define SHAPING_MAX_STEPRATE 5000  // By default the maximum total step rate of the shaped axes. Override to affect SRAM usage.

It doesn't help. Without Input Shaping enabled, everything is stitched correctly

MrKuskov commented 2 months ago

the firmware file turned out to be more than 224kb. That's why it didn't load. I had to disable some of the functions.