TMC2209 SilentStepStick

Pinout

View from the top side. Further infos can be also found in the schematics PDF file.

v2.x Pinout

TMC2209 v2 Pinout

Notes:

  • To enable UART communication, the jumper on the driver has to be bridged from the middle to the respective position.
  • If the operating mode (stealthChop or spreadCycle) cannot be set via UART correctly, then check if the SPREAD pin is not connected to any other signal. Because the operating mode will toggle, if the pin state (low or high) is changed.
  • SKR v1.3 boards use MS3 as UART pin, which is SPREAD on the TMC2209 SilentStepStick. For UART mode the xxxUART pin 1 has to be connected to xxxSPI pin 1 and no jumpers set for UART or SPI on the SKR board. The jumper on the driver board has to be also closed in one direction to activate UART communication. Another method to enable UART is described here.
  • SKR v1.4 boards use MS3 as UART pin, which is SPREAD on the TMC2209 SilentStepStick. So a solder bridge is needed and the SPREAD/MS3 pin has to be cut off, further infos here. The jumper on the driver board has to be also closed in the SPREAD pin direction to activate UART communication.
  • TriGorilla boards set the configuration pins MS1 + MS2 + MS3 to 5V (high), which will set the TMC2209 into 1/16 spreadCycle mode. To enable 1/16 stealthChop mode, cut off the pin SPREAD/MS3 pin on the TMC2209 to unconnect it from the mainboard (SPREAD has an internal pull-down resistor).

Pin Functions

PinFunction
.Power Supply
GNDGround
VMMotor Supply Voltage (5.5-28V)
VIOLogic Supply Voltage (3.3-5V)
.Motor Outputs
M1AMotor Coil 1
M1BMotor Coil 1
M2AMotor Coil 2
M2BMotor Coil 2
.Control Inputs
STEPStep-Signal Input
DIRDirection-Signal Input
ENEnable Motor Outputs (GND=on, VIO=off)
.Configuration
MS1Step-Configuration, pd
MS2Step-Configuration, pd
SPREADChopper, pd (GND=stealthChop, VIO=spreadCycle)
PDN_UARTUART and Auto Power Down Control, pd (GND=on, VIO=off)
DIAGDiagnostics Output (VIO=error)
INDEXIndex Output (one pulse per each four fullsteps)
VREFAnalog Reference Voltage

pd - pin with pull-down resistor

Step-Configuration

CFG2/MS2CFG1/MS1SPREAD/MS3StepsInterpolationMode
GNDGNDGND1/81/256stealthChop
GNDVIOGND1/321/256stealthChop
VIOGNDGND1/641/256stealthChop
VIOVIOGND1/161/256stealthChop
GNDGNDVIO1/81/256spreadCycle
GNDVIOVIO1/321/256spreadCycle
VIOGNDVIO1/641/256spreadCycle
VIOVIOVIO1/161/256spreadCycle

Other modes and options can be set via UART (see TMC220x Configurator).