TMC2240¶
Product Profile¶
The TMC2240 is a smart high-performance stepper motor driver IC with serial communication interfaces (SPI, UART) and extensive diagnosis capabilities.
Product Link: https://biqu.equipment/products/bigtreetech-tmc2240-v1-0
Features Highlights¶
- Voltage range 4.5-36V DC
- Current ratings per H-bridge (typical at 25°C) IMAX=5.0A (bridge peak current) IRMS=2.1ARMS (3A sine wave peak)
- SPI & Single Wire UART
- Highest resolution 256 microsteps per full step
- SpreadCycle™ (highly dynamic motor control chopper)
- StealthChop2™ (ultra-quiet technology)
- MicroPlyer™ (microstep control)
- StallGuard4™ (locked-motor test)
- CoolStep™ (current dynamic control)
Dimensions¶
Interface Diagram¶
Interface Diagram¶
The direction of installing the EZ version driver to the new header is shown in the image below:
| J1 | Function | J2 | Function |
| 1 | (EN)Enable | 1 | (VM)Motor Supply Voltage |
| 2 | (SDI/CFG1)Data | 2 | (GND)GND |
| 3 | (SCK/CFG2)Clock | 3 | (B2) B Phase |
| 4 | (CSN/CFG3) Chip Select | 4 | (B1) B Phase |
| 5 | (SDO/CFG0) Data | 5 | (A1) A Phase |
| 6 | (DIAG) Locked-Rotor Detection | 6 | (A2) A Phase |
| 7 | (STEP) Pulse Input | 7 | (VIO) Logic Voltage |
| 8 | (DIR) Direction Input | 8 | (GND) GND |
Software Installation¶
Klipper Firmware Download, please click:
https://codeload.github.com/bigtreetech/klipper/zip/refs/heads/tmc2240