Pin Mapping

This is the current pin mapping of the main sPrinter MCU.

PinNameModePeripheralFunction
PA0SRV1_POSPWM2TIM2_CH1Servo 1 position
PA1SRV2_POSPWM2TIM2_CH1Servo 2 position
PA8USB_SOFSOFUSB_OTG_FSUSB start of signal
PA9LOG_TXTXUSART1Log serial transmit
PA10LOG_RXRXUSART1Log serial receive
PA11USB_DMDMUSB_OTG_FSUSB data minus
PA12USB_DPDPUSB_OTG_FSUSB data plus
PA13TMSSWDIOSYS_JTMSJTag test mode select
PA14TCKSWCLKSYS_JTCKJTag clock
PB0LED_GREENOUT_PPGPIOGreen LED
PB7LED_BLUEOUT_PPGPIOBlue LED
PB10STEP1_DIROUT_PPGPIOStepper 1 direction
PB11STEP2_DIROUT_PPGPIOStepper 2 direction
PB14LED_REDOUT_PPGPIORed LED
PC0SUN_ADC1IN10ADC1Suntracker analog in
PC1SUN_ADC2IN11ADC1Suntracker analog in
PC2SUN_ADC3IN12ADC1Suntracker analog in
PC3SUN_ADC4IN13ADC1Suntracker analog in
PC4SUN_ADC5IN14ADC1Suntracker analog in
PC6ENG4_SPDPWM2TIM8_CH1Engine 4 speed
PC7ENG3_SPDPWM2TIM8_CH2Engine 3 speed
PC8ENG2_SPDPWM2TIM8_CH3Engine 2 speed
PC9ENG1_SPDPWM2TIM8_CH4Engine 1 speed
PC13USER_BTNEXTI10_RTGPIOUser button interrupt
PC14OSC32_INOSC32_INRCCOscillator input
PC15OSC32_OUTOSC32_OUTRCCOscillator output
PD0STEP1_ENOUT_PPGPIOStepper 1 enable
PD1STEP2_ENOUT_PPGPIOStepper 2 enable
PD5RF_TXTXUSART2RF module transmit
PD6RF_RXRXUSART2RF module receive
PD8STLK_TXTXUSART3STLink transmit
PD9STLK_RXRXUSART3STLink receive
PD12ENG5_SPDPWM2TIM4_CH1Engine 5 speed
PD13ENG6_SPDPWM2TIM4_CH2Engine 6 speed
PD14ENG7_SPDPWM2TIM4_CH3Engine 7 speed
PE2ENC3_EIEXTI2_RFTGPIOEncoder 3 interrupt
PE3ENC4_EIEXTI3_RFTGPIOEncoder 4 interrupt
PE4ENC5_EIEXTI4_RFTGPIOEncoder 5 interrupt
PE5ENC6_EIEXTI5_RFTGPIOEncoder 6 interrupt
PE7ENG1_DIROUT_PPGPIOEngine 1 direction
PE8ENG2_DIROUT_PPGPIOEngine 2 direction
PE9ENG3_DIROUT_PPGPIOEngine 3 direction
PE10ENG4_DIROUT_PPGPIOEngine 4 direction
PE11ENG5_DIROUT_PPGPIOEngine 5 direction
PE12ENG6_DIROUT_PPGPIOEngine 6 direction
PE14ENG7_DIROUT_PPGPIOEngine 7 direction
PG0ENC1_EIEXTI0_RFTGPIOEncoder 1 interrupt
PG1ENC2_EIEXTI1_RFTGPIOEncoder 2 interrupt
PG2STEP1_CTLOUT_PPGPIOStepper 1 control
PG3STEP2_CTLOUT_PPGPIOStepper 2 control
PG6USB_PWROUT_PPGPIOUSB power switch on
PG7USB_OCINGPIOUSB over current
PH0MCOOSC_INRCCOscillator input
PH1OSC_OUTOSC_OUTRCCOscillator output