❗ This project provides documentation on how to configure stepper motor driver boards and how to use them with the SKR V1.4 3D printer controller board ❗
I use Git for Windows with VScode to manage this repository. I also use Git LFS extension for .pdf and .png files.
Install Git with LFS extension: https://git-lfs.github.com/
To Download the whole repository do the following: select the "Clone or download button" and click on "paste to clipboard" button so you can place the URL for the GitHub repository to the clipboard. Now Open Git Bash.
Change the current working directory to the location where you want the cloned directory.
Type git clone, and then paste the URL you copied earlier.
$ git clone https://github.com/GadgetAngel/SKR-V1.4-Stepper-Driver-Jumper-Configuration-Manual.git
Press Enter to create your local clone.
Now open Window explorer to the location of the local clone.
You can download the .zip file (for this repository) from my google drive located here:
The Whole Repository in .zip file is located on Google Drive at: https://drive.google.com/file/d/17Kp9Up91jG7fkuRo1nIgjalsLMgn0W6u/view?usp=sharing
Here is a GUIDE on how to connect the MAX31865 board with a PT100/PT1000 Temperature Sensor to the SKR V1.4 board: https://github.com/GadgetAngel/MAX31865-SKR-V1-4-GUIDE
Stepper Driver Configurations for SKR V1.4 Board
By @GadgetAngel
Preface......................................................................................................1
What is a stepper motor?...................................................................................2
Stall Detection and Sensor-less Homing.....................................................................3
Requirements Needed to Make Sensor-less Homing Work......................................................3
POLOLU A4988.................................................................................................4
Driver Chip Chart for POLOLU A4988.........................................................................4
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set..........5
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board...........................................6
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Have
RST&SLP Set..............................................................................................8
The (latest release of) Marlin Setup for POLOLU A4988 Drivers.............................................13
BIQU A4988..................................................................................................16
Driver Chip Chart for BIQU 4988...........................................................................16
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set.........17
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board..........................................18
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Have
RST&SLP Set.............................................................................................20
The (latest release of) Marlin Setup for BIQU A4988 Drivers...............................................25
DRV8825.....................................................................................................28
Driver Chip Chart for POLOLU DRV8825......................................................................28
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set.........29
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board..........................................30
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Have
RST&SLP Set.............................................................................................32
The (latest release of) Marlin Setup for DRV8825 Drivers..................................................38
BIQU LV8729.................................................................................................42
Driver Chip Chart for BIQU LV8729.........................................................................42
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set..43
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not Have
RST&SLP Set.............................................................................................45
The (latest release of) Marlin Setup for BIQU LV8729 Drivers..............................................51
FYSETC LV8729...............................................................................................56
Driver Chip Chart for FYSETC LV8729.......................................................................56
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set..57
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not Have
RST&SLP Set.............................................................................................59
The (latest release of) Marlin Setup for FYSETC LV8729 Drivers............................................65
LERDGE LV8729...............................................................................................70
Driver Chip Chart for LERDGE LV8729.......................................................................70
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set..71
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not Have
RST&SLP Set.............................................................................................73
The (latest release of) Marlin Setup for LERDGE LV8729 Drivers............................................79
MKS LV8729..................................................................................................84
Driver Chip Chart for MKS LV8729..........................................................................84
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set..85
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not Have
RST&SLP Set.............................................................................................87
The (latest release of) Marlin Setup for MKS LV8729 Drivers...............................................93
FYSETC S6128 V1.1...........................................................................................98
Driver Chip Chart for FYSETC S6128........................................................................98
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set.........99
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board.........................................100
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Have
RST&SLP Set............................................................................................102
The (latest release of) Marlin Setup for FYSETC S6128 V1.1 Drivers.......................................108
FYSETC ST820...............................................................................................113
Driver Chip Chart for FYSETC ST820.......................................................................113
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set........114
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board.........................................115
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Have
RST&SLP Set............................................................................................117
The (latest release of) Marlin Setup for FYSETC ST820 Drivers............................................123
BIQU ST820.................................................................................................129
Driver Chip Chart for BIQU ST820.........................................................................129
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set........130
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board.........................................131
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Have
RST&SLP Set............................................................................................133
The (latest release of) Marlin Setup for BIQU ST820 Drivers..............................................139
POLOLU ST820 (STSPIN820)...................................................................................145
Driver Chip Chart for POLOLU ST820.......................................................................145
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set........146
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board.........................................147
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Have
RST&SLP Set............................................................................................149
The (latest release of) Marlin Setup for POLOLU ST820 (STSPIN820) Drivers................................155
POLOLU MP6500..............................................................................................161
Driver Chip Chart for POLOLU MP6500......................................................................161
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.162
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not Have
RST&SLP Set............................................................................................164
The (latest release of) Marlin Setup for POLOLU MP6500 Drivers...........................................168
POLOLU TB67S249FTG.........................................................................................173
Driver Chip Chart for POLOLU TB67S249FTG.................................................................173
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.174
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................176
The (latest release of) Marlin Setup for POLOLU TB67S249FTG Drivers......................................182
BIQU S109..................................................................................................187
Driver Chip Chart for BIQU S109..........................................................................187
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.188
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................190
The (latest release of) Marlin Setup for BIQU S109 Drivers...............................................196
FYSETC S109................................................................................................201
Driver Chip Chart for FYSETC S109........................................................................201
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.202
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................204
The (latest release of) Marlin Setup for FYSETC S109 Drivers.............................................210
BIQU TMC2100 Stand-alone Mode..............................................................................215
Driver Chip Chart for BIQU TMC2100 in Stand-alone Mode...................................................215
SKR V1.4 LEGEND of Driver Chip Chart for Tri State Stepper Drivers.......................................216
How to Create aa SKR V1.4 DuPont Jumper Cable to Use with Tri State Drivers............................218
SKR V1.4 LEGEND of Driver Socket Representation for Tri State Stepper Motor Drivers......................220
Additional Equipment Needed for Low Low (STEP or FULL) Configuration...................................222
The (latest release of) Marlin Setup for BIQU TMC2100 Drivers in Stand-alone Mode........................230
MKS TMC2100 Stand-alone Mode...............................................................................235
Driver Chip Chart for MKS TMC2100 in Stand-alone Mode....................................................235
SKR V1.4 LEGEND of Driver Chip Chart for Tri State Stepper Drivers.......................................236
How to Create a SKR V1.4 DuPont Jumper Cable to Use with Tri State Drivers.............................238
SKR V1.4 LEGEND of Driver Socket Representation for Tri State Stepper Motor Drivers......................240
Additional Equipment Needed for Low Low (STEP or FULL) Configuration...................................242
The (latest release of) Marlin Setup for MKS TMC2100 Drivers in Stand-alone Mode.........................250
BIQU TMC2130 Stand-alone Mode..............................................................................255
Driver Chip Chart for BIQU TMC2130 in Stand-alone Mode...................................................255
SKR V1.4 LEGEND of Driver Chip Chart for Tri State Stepper Drivers.......................................256
How to Create a SKR V1.4 DuPont Jumper Cable to Use with Tri State Drivers.............................258
SKR V1.4 LEGEND of Driver Socket Representation for Tri State Stepper Motor Drivers......................260
Additional Equipment Needed for Low Low (STEP or FULL) Configuration...................................262
The (latest release of) Marlin Setup for BIQU TMC2130 Drivers in Stand-alone Mode........................270
BIQU TMC2130 SPI Mode......................................................................................275
Driver Chip Chart for BIQU TMC2130 in SPI Mode...........................................................275
SKR V1.4 LEGEND of Driver Socket Representation for Stepper Motor Drivers in SPI Mode....................278
Information on Sensor-less Homing........................................................................281
The (latest release of) Marlin Setup for BIQU TMC2130 Drivers in SPI Mode................................285
BIQU TMC2208 V3.0 Stand-alone Mode.........................................................................298
Driver Chip Chart for BIQU TMC2208 in Stand-alone Mode...................................................298
SKR V1.4 LEGEND of Driver Chip for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.......299
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................301
The (latest release of) Marlin Setup for BIQU TMC2208 V3.0 Drivers in Stand-alone Mode...................305
BIQU TMC2208 V3.0 One Time Programming (OTP) Mode..........................................................310
Driver Chip Chart for BIQU TMC2208 in OTP Mode...........................................................310
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.311
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................313
The (latest release of) Marlin Setup for BIQU TMC2208 V3.0 Drivers in One Time Programming (OTP) Mode....317
BIQU TMC2208 V3.0 UART Mode................................................................................322
Driver Chip Chart for BIQU TMC2208 in UART Mode..........................................................322
SKR V1.4 LEGEND of Driver Socket Representation for Stepper Motor Drivers in UART Mode...................325
The (latest release of) Marlin Setup for BIQU TMC2208 V3.0 Drivers in UART Mode..........................331
FYSETC TMC2208 V1.2 Stand-alone Mode.......................................................................341
Driver Chip Chart for FYSETC TMC2208 in Stand-alone Mode.................................................341
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.342
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................344
The (latest release of) Marlin Setup for FYSETC TMC2208 V1.2 Drivers in Stand-alone Mode.................348
FYSETC TMC2208 V1.2 One Time Programming (OTP) Mode........................................................353
Driver Chip Chart for FYSETC TMC2208 in OTP Mode.........................................................353
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.354
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................356
The (latest release of) Marlin Setup for FYSETC TMC2208 V1.2 Drivers in One Time Programming (OTP) Mode..360
FYSETC TMC2208 V1.2 UART Mode..............................................................................365
Driver Chip Chart for FYSETC TMC2208 in UART Mode........................................................365
SKR V1.4 LEGEND of Driver Socket Representation for Stepper Motor Drivers in UART Mode...................368
The (latest release of) Marlin Setup for FYSETC TMC2208 V1.2 Drivers in UART Mode........................374
BIQU TMC2225 V1.0 Stand-alone Mode.........................................................................384
Driver Chip Chart for BIQU TMC2225 in Stand-alone Mode...................................................384
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.385
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................387
The (latest release of) Marlin Setup for BIQU TMC2225 V1.0 Drivers in Stand-alone Mode...................391
BIQU TMC2225 V1.0 One Time Programming (OTP) Mode..........................................................396
Driver Chip Chart for BIQU TMC2225 in OTP Mode...........................................................396
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.397
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................399
The (latest release of) Marlin Setup for BIQU TMC2225 V1.0 Drivers in One Time Programming (OTP) Mode....403
BIQU TMC2225 V1.0 UART Mode................................................................................408
Driver Chip Chart for BIQU TMC2225 in UART Mode..........................................................408
SKR V1.4 LEGEND of Driver Socket Representation for Stepper Motor Drivers in UART Mode...................411
The (latest release of) Marlin Setup for BIQU TMC2225 V1.0 Drivers in UART Mode..........................417
BIQU TMC2209 V1.2 Stand-alone Mode for StealthChop.........................................................427
Driver Chip Chart for BIQU TMC2209 in Stand-alone Mode (StealthChop).....................................427
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.428
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................430
The (latest release of) Marlin Setup for BIQU TMC2209 V1.2 Drivers in Stand-alone Mode for StealthChop...434
BIQU TMC2209 V1.2 Stand-alone Mode for SpreadCycle.........................................................439
Driver Chip Chart for BIQU TMC2209 in Stand-alone Mode (SpreadCycle).....................................439
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have RST&SLP PINS Set.440
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.......................................................................................442
The (latest release of) Marlin Setup for BIQU TMC2209 V1.2 Drivers in Stand-alone Mode for SpreadCycle...446
BIQU TMC2209 V1.2 UART Mode................................................................................451
Driver Chip Chart for BIQU TMC2209 in UART Mode..........................................................451
SKR V1.4 LEGEND of Driver Socket Representation for Stepper Motor Drivers in UART Mode...................454
Information on Sensor-less Homing........................................................................458
The (latest release of) Marlin Setup for BIQU TMC2209 V1.2 Drivers in UART Mode..........................462
BIQU TMC5160 V1.2 SPI Mode.................................................................................475
Driver Chip Chart for BIQU TMC5160 in SPI Mode...........................................................475
SKR V1.4 LEGEND of Driver Socket Representation for Stepper Motor Drivers in SPI Mode....................478
Information on Sensor-less Homing........................................................................481
The (latest release of) Marlin Setup for BIQU TMC5160 V1.2 Drivers in SPI Mode...........................485
BIQU TMC5161 V1.0 SPI Mode.................................................................................498
Driver Chip Chart for BIQU TMC5161 in SPI Mode...........................................................498
SKR V1.4 LEGEND of Driver Socket Representation for Stepper Motor Drivers in SPI Mode....................501
Information on Sensor-less Homing........................................................................504
The (latest release of) Marlin Setup for BIQU TMC5161 V1.0 Drivers in SPI Mode...........................508
APPENDIX A.................................................................................................521
How to adjust the Vref on a Stepper Motor Driver board using the Potentiometer...........................521
APPENDIX B.................................................................................................523
For the TMC drivers what's the difference between stand-alone mode and ("UART" or "SPI ") modes?.........523
How to Calculate Vref for Non-TMC Stepper Motor Divers...................................................523
How to Calculate Vref for TMC Stepper Motor Drivers......................................................524
Driving Current Calculation Formulas for TMC Stepper Motor Drivers.......................................525
#1 TMC2100 with Rs = 0.110Ω (110mΩ)....................................................................525
#2 TMC2130 with Rs = 0.110Ω (110mΩ)....................................................................525
#3 TMC2208 with Rs = 0.110Ω (110mΩ) for Stand-alone Mode...............................................525
#4 TMC2208 with Rs = 0.110Ω (110mΩ) for UART Mode......................................................526
#5 TMC2209 with Rs = 0.110Ω (110mΩ) for Stand-alone Mode...............................................526
#6 TMC2209 with Rs = 0.110Ω (110mΩ) for UART Mode......................................................527
#7 TMC2225 with Rs = 0.150Ω (150mΩ) for UART Mode......................................................527
#8 TMC5160 with Rs = 0.075Ω (75mΩ) for SPI Mode........................................................527
#9 TMC5161 with Rs = 0.062Ω (62mΩ) for SPI Mode........................................................528
#10 TMC2225 with Rs = 0.150Ω (150mΩ) for Stand-alone Mode..............................................528
APPENDIX C.................................................................................................529
The (Latest Release of) Marlin Setup That Is Common to ALL Stepper Motor Drivers.........................529
Link to BIGTREETECH SKR V1.4 Instruction Manual.pdf....................................................529
Link to Download Marlin 2.0.x Firmware Website.........................................................529
Link to Pronterface Software...........................................................................530
Link to How to Calibrate your 3D Printer...............................................................530
SKR V1.4 Color PIN Diagram...............................................................................543
SKR V1.4 Color Wiring Diagram............................................................................544
DCDC Mode V1.0 Board.....................................................................................547
SKR V1.4 Color PIN 1 Diagram.............................................................................549
SKR V1.4 Color Schematic Diagram.........................................................................550
SKR V1.4 Uncolored Schematic Diagram.....................................................................551
APPENDIX D.................................................................................................552
Legends for SKR V1.4 Stepper Driver Socket Representations...............................................552
SKR V1.4 LEGEND COMMON to ALL Driver Socket Representation.............................................553
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which
Have RST&SLP Set.....................................................................................554
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Have RST&SLP PINS Set......557
Special Consideration of D Jumper (RST&SLP) for SKR V1.4 Board.......................................558
SKR V1.4 LEGEND of Driver Socket Representation for Binary State Stepper Motor Drivers Which Do Not
Have RST&SLP Set.....................................................................................559
SKR V1.4 LEGEND of Driver Chip Chart for Binary State Stepper Drivers Which Do Not Have
RST&SLP PINS Set.....................................................................................562
SKR V1.4 LEGEND of Driver Socket Representation for Tri State Stepper Motor Drivers....................563
SKR V1.4 LEGEND of Driver Chip Chart for Tri State Stepper Drivers.....................................565
How to Create a SKR V1.4 DuPont Jumper Cable to Use with Tri State Drivers...........................567
SKR V1.4 LEGEND of Driver Socket Representation for SPI Capable Stepper Motor Drivers..................568
SKR V1.4 LEGEND of Driver Socket Representation for UART Capable Stepper Motor Drivers.................572
SKR V1.4 LEGEND of Driver Socket Representation for Sensor-less Homing Capable Stepper Motor Drivers...579
Examples for Stepper Driver Socket Representations.......................................................584
Example 1 (LV8729 Driver Board; Binary State Driver without RST&SLP) for SKR V1.4 Driver Socket
Representation.......................................................................................584
Example 2 (A4988 Driver Board; Binary State Driver with RST&SLP) for SKR V1.4 Driver Socket
Representation.......................................................................................585
Example 3 (TMC2130 Driver in Stand-alone Mode; Tri State Driver) for SKR V1.4 Driver Socket
Representation.......................................................................................586
Example 4 (TMC2209 UART with Sensor-less Homing) for SKR V1.4 Driver Socket Representation.............587
Example 5 (TMC2209 UART WITHOUT Sensor-less Homing) for SKR V1.4 Driver Socket Representation..........588
Example 6 (TMC2130 SPI with Sensor-less Homing) for SKR V1.4 Driver Socket Representation..............589
Example 7 (TMC2130 SPI WITHOUT Sensor-less Homing) for SKR V1.4 Driver Socket Representation...........590
APPENDIX E.................................................................................................591
Location Of “firmware.bin” File from the Marlin Compilation for SKR V1.4 Board...........................591
APPENDIX F.................................................................................................594
Links to Reference Material..............................................................................594
Marlin Firmware Documentation..........................................................................594
Information on Stepper Motor Drivers and Micro-stepping................................................594
POLOLU A4988 and BIQU A4988............................................................................595
DRV8825................................................................................................595
BIQU LV8729, FYSETC LV8729, LERDGE LV8729, and MKS LV8729..............................................596
BIQU LV8729............................................................................................596
FYSETC LV8729..........................................................................................597
LERDGE LV8729..........................................................................................597
MKS LV8729.............................................................................................598
FYSETC S6128 V1.1......................................................................................598
FYSETC ST820...........................................................................................599
BIQU ST820.............................................................................................599
POLOLU ST820 (STSPIN820)...............................................................................600
POLOLU MP6500..........................................................................................600
POLOLU TB67S249FTG.....................................................................................601
BIQU S109 and FYSETC S109..............................................................................601
BIQU S109..............................................................................................602
FYSETC S109............................................................................................602
Marlin Firmware Documentation Specific to TMC Drivers..................................................603
Information Common to All TMC Drivers..................................................................603
BIQU TMC2100 and MKS TMC2100...........................................................................604
BIQU TMC2130...........................................................................................605
Information Common to BIQU TMC2208 V3.0 and FYSETC TMC2208 V1.2........................................605
Information Common to BIQU TMC2208 V3.0 and FYSETC TMC2208 V1.2 (Continued)............................606
BIQU TMC2208 V3.0......................................................................................606
FYSETC TMC2208 V1.2....................................................................................606
Information Common to TMC2208 and BIQU TMC2225.........................................................607
BIQU TMC2225 V1.0......................................................................................607
BIQU TMC2209 V1.2......................................................................................608
BIQU TMC5160 V1.2......................................................................................608
BIQU TMC5161 V1.0......................................................................................609
SKR V1.4 Board.........................................................................................609
Facebook Groups........................................................................................610
Miscellaneous Information..............................................................................611
Miscellaneous Information (continued)..................................................................612
APPENDIX G.................................................................................................614
BIGTREETECH Reference Material...........................................................................614
Original PIN Diagram...................................................................................614
Original Wiring Diagram 1..............................................................................615
Original Wiring Diagram 2 for STEP/DIR Mode............................................................616
Original Wiring Diagram 3 for UART Mode................................................................617
Original Wiring Diagram 4 for SPI Mode.................................................................618
Original PIN 1 Diagram #1..............................................................................619
Additional Original Reference Material for PIN 1 Diagram #2............................................620
Additional Original Reference Material for PIN 1 Diagram #3............................................621
Original Schematic Diagram.............................................................................622
APPENDIX H.................................................................................................623
Filament Runout Sensor Guide for SKR V1.4 Board..........................................................623
Filament Runout Sensor Wired to Limit Switch {X-, Y-, Z-, E0DET, E1DET, or PWRDET}.....................624
Marlin 2.0.x Setup for Filament Runout Sensor Connected to E0DET Connector.............................625
Marlin 2.0.x Setup for Filament Runout Sensor........................................................626
APPENDIX I.................................................................................................630
“Connecting up Raspberry Pi via TFT Connector” Guide for SKR V1.4 Board..................................630
Connecting SKR V1.4 to Raspberry Pi to Eliminate USB Cable Via TFT Connector...........................631
TFT Connector Wiring Diagram for Connecting SKR V1.4 to Raspberry Pi to Eliminate USB Cable..........634
Marlin 2.0.x Setup for Connecting up Raspberry Pi......................................................637
APPENDIX J.................................................................................................639
“Connecting up Raspberry Pi via WIFI Header” Guide for SKR V1.4 Board....................................639
Connecting SKR V1.4 to Raspberry Pi to Eliminate USB Cable via WIFI Header.............................640
WIFI Header Wiring Diagram for Connecting SKR V1.4 to Raspberry Pi to Eliminate USB Cable............643
Marlin 2.0.x Setup for Connecting up Raspberry Pi......................................................646
APPENDIX K.................................................................................................648
BLTouch Guide for SKR V1.4 Board.........................................................................648
Connecting SKR V1.4 with BLTouch.......................................................................649
Wiring Diagram for Connecting SKR V1.4 with BLTouch..................................................652
Marlin 2.0.x Firmware Setup for Connecting a BLTouch to the SKR V1.4 Board.............................653
Explanation when to use Marlin variable Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN...........................657
Understanding Marlin Firmware’s NOZZLE_TO_PROBE_OFFSET Setting.......................................660
APPENDIX L.................................................................................................675
PT100 Guide for SKR V1.4 Board...........................................................................675
Connecting SKR V1.4 with PT100 Amplifier Board and PT100 Sensor........................................676
Instructions on How to Perform the SKR V1.4 Hardware Hack to Obtain an ADC Input on a
Thermistor Port....................................................................................681
Instructions for Suppling Power to the PT100 Amplifier Board...........................................684
Method #1 for Powering the PT100 Amplifier Board (Digital PWR).......................................685
Method #2 for Powering PT100 Amplifier Board (Analog PWR)............................................686
Technique #1 & Method #1 (Digital PWR) Wiring Diagram for Connecting Up Your PT1100 to the TFT Header..687
Technique #2 & Method #1 (Digital PWR) Wiring Diagram for Connecting Up Your PT100 to the
TH0 Connector........................................................................................688
Technique #2 & Method #2 (Analog PWR) Wiring Diagram for Connecting Up Your PT100 to the TH0 Connector.689
Marlin 2.0.x Firmware Setup for Connecting a PT100 Sensor to the SKR V1.4 Board........................690
Marlin 2.0.x Firmware Setup via Technique #1.........................................................691
Marlin 2.0.x Firmware Setup via Technique #2.........................................................696
APPENDIX M.................................................................................................701
K-Type Thermocouple Guide for SKR V1.4 Board.............................................................701
Connecting SKR V1.4 with K-Type Thermocouple Sensor and Adafruit’s AD8495 Amplifier Board..............702
Instructions on How to Perform the SKR V1.4 Hardware Hack to Obtain an ADC Input on a
Thermistor Port....................................................................................707
Instructions for Suppling Power to the AD8495 Amplifier Board..........................................710
Method #1 for Powering the AD8495 Amplifier Board (Digital PWR)......................................711
Method #2 for Powering AD8495 Amplifier Board (Analog PWR)...........................................712
Technique #1 & Method #1 (Digital PWR) Wiring Diagram for Connecting Up Your K-Type Thermocouple
to the TFT Header....................................................................................713
Technique #2 & Method #1 (Digital PWR) Wring Diagram for Connecting Up Your K-Type Thermocouple
to the TH0 Connector.................................................................................714
Technique #2 & Method #2 (Analog PWR) Wiring Diagram for Connecting Up Your K-Type Thermocouple
to the TH0 Connector.................................................................................715
Marlin 2.0.x Firmware Setup for Connecting a K-Type Thermocouple Sensor and Adafruit’s AD8495
Amplifier Board......................................................................................716
Marlin 2.0.x Firmware Setup via Technique #1.........................................................717
Marlin 2.0.x Firmware Setup via Technique #2.........................................................723