bdring
Problem: Low memory error while running G-code
Wiki Search Terms
"Low Memory" "SD Card" "LocalFS"
Controller Board
MSK TinyBee
Machine Description
Using MSK TinyBee to control four motors. UART is used to connect with an external serial display. I created a serial monitor software for that external display and I can type commands to control the board.
Input Circuits
No response
Configuration file
board: MKS TinyBee V1.0_001
name: K40 Laser
meta: (01.02.2022) by Skorpi
kinematics:
Cartesian:
stepping:
engine: I2S_STATIC
idle_ms: 0
pulse_us: 4
dir_delay_us: 1
disable_delay_us: 0
uart1:
txd_pin: gpio.17
rxd_pin: gpio.16
rts_pin: NO_PIN
baud: 115200
mode: 8N1
uart_channel1:
uart_num: 1
report_interval_ms: 400
axes:
x:
# X
steps_per_mm: 640
max_rate_mm_per_min: 4000.000
acceleration_mm_per_sec2: 50
max_travel_mm: 411.000
soft_limits: false
homing:
cycle: 2
positive_direction: true
mpos_mm: 0.000
feed_mm_per_min: 300.000
seek_mm_per_min: 5000.000
settle_ms: 500
seek_scaler: 1.100
feed_scaler: 1.100
motor0:
limit_neg_pin: gpio.33:low
hard_limits: false
pulloff_mm: 2.000
stepstick:
step_pin: I2SO.1
direction_pin: I2SO.2
disable_pin: I2SO.0
y:
# Y
steps_per_mm: 135.85
max_rate_mm_per_min: 4000.000
acceleration_mm_per_sec2: 50
max_travel_mm: 182.000
soft_limits: false
homing:
cycle: 1
positive_direction: true
mpos_mm: 0.000
feed_mm_per_min: 300.000
seek_mm_per_min: 5000.000
settle_ms: 500
seek_scaler: 1.100
feed_scaler: 1.100
motor0:
limit_neg_pin: gpio.32:low
hard_limits: false
pulloff_mm: 2.000
stepstick:
step_pin: I2SO.4
direction_pin: I2SO.5
disable_pin: I2SO.3
z:
# Z
steps_per_mm: 640
max_rate_mm_per_min: 4000.000
acceleration_mm_per_sec2: 50
max_travel_mm: 80
soft_limits: false
homing:
cycle: 3
positive_direction: true
mpos_mm: 0.000
feed_mm_per_min: 300.000
seek_mm_per_min: 1000.000
settle_ms: 500
seek_scaler: 1.100
feed_scaler: 1.100
motor0:
limit_neg_pin: gpio.22:low
# limit_neg_pin: gpio.22:high
hard_limits: false
pulloff_mm: 1.000
stepstick:
step_pin: I2SO.7
direction_pin: I2SO.8
disable_pin: I2SO.6
a:
# E0
steps_per_mm: 85.3
max_rate_mm_per_min: 4000.000
acceleration_mm_per_sec2: 50
max_travel_mm: 3300.000
soft_limits: false
homing:
cycle: 4
positive_direction: true
mpos_mm: 0.000
feed_mm_per_min: 300.000
seek_mm_per_min: 1000.000
settle_ms: 500
seek_scaler: 1.100
feed_scaler: 1.100
motor0:
limit_neg_pin: gpio.35:low
# limits_neg_pin: gpio.35:high
hard_limits: false
pulloff_mm: 1.000
stepstick:
step_pin: I2SO.10
direction_pin: I2SO.11
disable_pin: I2SO.9
b:
# E1
steps_per_mm: 1600
max_rate_mm_per_min: 1500.000
acceleration_mm_per_sec2: 100
max_travel_mm: 15.000
soft_limits: false
homing:
cycle: 0
positive_direction: true
mpos_mm: 0.000
feed_mm_per_min: 300.000
seek_mm_per_min: 1000.000
settle_ms: 500
seek_scaler: 1.100
feed_scaler: 1.100
motor0:
limit_neg_pin: gpio.2:high
# limit_neg_pin: gpio.2:high
hard_limits: false
pulloff_mm: 1.000
stepstick:
step_pin: I2SO.13
direction_pin: I2SO.14
disable_pin: I2SO.12
i2so:
bck_pin: gpio.25
data_pin: gpio.27
ws_pin: gpio.26
control:
safety_door_pin: NO_PIN
reset_pin: NO_PIN
# Original: gpio.35:high
feed_hold_pin: NO_PIN
# feed_hold_pin: gpio.36:low
cycle_start_pin: gpio.39:low
# EXP1 BTN_ENC
macro0_pin: NO_PIN
macro1_pin: NO_PIN
macro2_pin: NO_PIN
macro3_pin: NO_PIN
macros:
startup_line0:
startup_line1:
macro0: G1F1000X0Y0Z0A0B0
# macro0: G1F1000X0Y0Z0A0B0
macro1:
macro2:
macro3:
coolant:
flood_pin: NO_PIN
# gpio.12:high
mist_pin: NO_PIN
delay_ms: 0
#probe:
# pin: gpio.2
# check_mode_start: true
PWM:
pwm_hz: 5000
# on EXP1 IO15 connector.
# note IO15 will give some short pulses on boot, which may activate spindle
# use IO17 on EXP1 to avoid
output_pin: gpio.15
s0_with_disable: true
tool_num: 0
spinup_ms: 0
spindown_ms: 0
speed_map: 0=0.000% 10000=100.000%
# PWM Duty Cycle M67 E0 Q50
user_outputs:
analog0_pin: NO_PIN
analog1_pin: NO_PIN
analog2_pin: NO_PIN
analog3_pin: NO_PIN
analog0_hz: 5000
analog1_hz: 5000
analog2_hz: 5000
analog3_hz: 5000
digital0_pin: gpio.14:low
digital1_pin: gpio.13:low
digital2_pin: gpio.12:low
digital3_pin: gpio.21:low
digital4_pin: gpio.4:low
digital5_pin: gpio.0:low
start:
must_home: false
# USB TX0(1) RX0(3)
# J3-> TX2(17) RX2(16)
# J1-> I2SO.23 I2SO.22
# TH1(36) TH2(34) THB(39)
# HE0(I2SO.17) HE1(I2SO.18) HBED(I2SO.16)
# FAN1(I2SO.19) FAN2(I2SO.20)
# EXP1 EXP2
#(BEEPER) I2SO.21 | 1 2 | 13 (BTN_ENC) (SPI MISO) 19 | 1 2 | 18 (SPI SCK)
# (LCD_EN) 21 | 3 4 | 4 (LCD_RS) (BTN_EN1) 14 | 3 4 | 5 (SPI CS)
# (LCD_D4) 0 | 5 6 16 (LCD_D5) (BTN_EN2) 12 | 5 6 23 (SPI MOSI)
# (LCD_D6) 15 | 7 8 | 17 (LCD_D7) (SPI_DET) 34 | 7 8 | RESET
# GND | 9 10 | 5V GND | 9 10 | 3.3V
Startup Messages
[MSG:INFO: FluidNC v3.7.12 https://github.com/bdring/FluidNC]
[MSG:INFO: Compiled with ESP32 SDK:v4.4.4]
[MSG:INFO: Local filesystem type is spiffs]
[MSG:INFO: Configuration file:1.yaml]
[MSG:DBG: Running after-parse tasks]
[MSG:DBG: Checking configuration]
[MSG:INFO: Machine K40 Laser]
[MSG:INFO: Board MKS TinyBee V1.0_001]
[MSG:INFO: UART1 Tx:gpio.17 Rx:gpio.16 RTS:NO_PIN Baud:115200]
[MSG:INFO: I2SO BCK:gpio.25 WS:gpio.26 DATA:gpio.27]
[MSG:DBG: SPI not defined]
[MSG:DBG: See http://wiki.fluidnc.com/en/config/sd_card#sdfallbackcs-access-sd-without-a-config-file]
[MSG:INFO: Stepping:I2S_static Pulse:4us Dsbl Delay:0us Dir Delay:1us Idle Delay:0ms]
[MSG:INFO: User Digital Output:0 on Pin:gpio.14:low]
[MSG:INFO: User Digital Output:1 on Pin:gpio.13:low]
[MSG:INFO: User Digital Output:2 on Pin:gpio.12:low]
[MSG:INFO: User Digital Output:3 on Pin:gpio.21:low]
[MSG:INFO: User Digital Output:4 on Pin:gpio.4:low]
[MSG:INFO: User Digital Output:5 on Pin:gpio.0:low]
[MSG:INFO: Axis count 5]
[MSG:INFO: Axis X (-411.000,0.000)]
[MSG:INFO: Motor0]
[MSG:INFO: stepstick Step:I2SO.1 Dir:I2SO.2 Disable:I2SO.0]
[MSG:INFO: X Neg Limit gpio.33:low]
[MSG:DBG: X Neg Limit 0]
[MSG:INFO: Axis Y (-182.000,0.000)]
[MSG:INFO: Motor0]
[MSG:INFO: stepstick Step:I2SO.4 Dir:I2SO.5 Disable:I2SO.3]
[MSG:INFO: Y Neg Limit gpio.32:low]
[MSG:DBG: Y Neg Limit 0]
[MSG:INFO: Axis Z (-80.000,0.000)]
[MSG:INFO: Motor0]
[MSG:INFO: stepstick Step:I2SO.7 Dir:I2SO.8 Disable:I2SO.6]
[MSG:INFO: Z Neg Limit gpio.22:low]
[MSG:DBG: Z Neg Limit 0]
[MSG:INFO: Axis A (-3300.000,0.000)]
[MSG:INFO: Motor0]
[MSG:INFO: stepstick Step:I2SO.10 Dir:I2SO.11 Disable:I2SO.9]
[MSG:INFO: A Neg Limit gpio.35:low]
[MSG:DBG: A Neg Limit 0]
[MSG:INFO: Axis B (-15.000,0.000)]
[MSG:INFO: Motor0]
[MSG:INFO: stepstick Step:I2SO.13 Dir:I2SO.14 Disable:I2SO.12]
[MSG:INFO: B Neg Limit gpio.2]
[MSG:DBG: B Neg Limit 1]
[MSG:INFO: cycle_start_pin gpio.39:low]
[MSG:INFO: Kinematic system: Cartesian]
[MSG:INFO: PWM Spindle Ena:NO_PIN Out:gpio.15 Dir:NO_PIN Freq:5000Hz Period:8191]
[MSG:INFO: Using spindle PWM]
[MSG:INFO: WiFi is disabled]
User Interface Software
FluidTerm
What happened?
I have a short G-code file stored in spiffs and execute the code by "LocalFS/Run=/2.nc". However, while running, messages like "Low memory: 13242 bytes" showed up randomly and the size was descending. After reaching 0, the board restarted and the original task was somehow aborted.
GCode File
% G21 G17 G21 G94 G90 G54 G92 x0Y0 Z0 A0 G0 G00 a-90 m62 p0 G04 p1 m63 p0 m0 G00 a0 G00 z-31 G00 y-198 m62 p4 g04 p1 G01 z0 f1000 G0 y -107 x-96 g1 z-53 m63 p4 g04 p1 G0 y0 x0 A-150 m62 p1 G04 p1 m63 p1 m0 G00 A0 z -60 y-171.85 m62 p4 g04 p1 z 0 y -218.85 z -15 m63 p4 g04 p1 y-198 z-60 m62 p4 g04 p1 z-50 y0 x-280 y-28 z-60 m63 p4 g04 p1 y0 x0 m62 p2 g04 p1 m63 p2 m0 z-60 x-280 y-28 m62 p4 g04 p1 z-50 y0 x-150 z-36 y-108 z-46 m63 p4 g04 p1 y0 x0 a-120 m62 p3 g04 p1 m63 p3 m0 a-150 m62 p3 g04 p1 m63 p3 m0 a0 x-150 y-108 m62 p4 g04 p1 z-36 y0 x0 y-198 z-60 m63 p4 g04 p1 z-53 y0 x-96 y-107 m62 p4 z0 x0 y-151 z-70 m63 p4 y0 G00 a-150 m62 p0 G04 p1 m63 p0 m0 G00 a-60 G00 z-31 G00 y-198 m62 p4 g04 p1 G01 z0 f1000 G0 y -107 x-96 g1 z-53 m63 p4 g04 p1 G0 y0 x0 A-210 m62 p1 G04 p1 m63 p1 m0 G00 A-60 z -60 y-171.85 m62 p4 g04 p1 z 0 y -218.85 z -15 m63 p4 g04 p1 y-198 z-60 m62 p4 g04 p1 z-50 y0 x-280 y-28 z-60 m63 p4 g04 p1 y0 x0 m62 p2 g04 p1 m63 p2 m0 z-60 x-280 y-28 m62 p4 g04 p1 z-50 y0 x-150 z-36 y-108 z-46 m63 p4 g04 p1 y0 x0 a-180 m62 p3 g04 p1 m63 p3 m0 a-210 m62 p3 g04 p1 m63 p3 m0 a-60 x-150 y-108 m62 p4 g04 p1 z-36 y0 x0 y-198 z-60 m63 p4 g04 p1 z-53 y0 x-96 y-107 m62 p4 z0 x0 y-151 z-70 m63 p4 y0 G28 M30 %
Other Information
If I use a shorter G-code, I do not have such issue.
In addition to the version problem, there are other problems that can happen when running long gcode files from localfs. Accessing FLASH as data can interfere with interrupts, which can cause problems with realtime step generation. We recommend using SD cards for gcode files.
