To flash new firmware:
#define X_STEP_PIN PB13 #define X_DIR_PIN PB12 #define X_ENABLE_PIN PC3#define Y_STEP_PIN PB10 #define Y_DIR_PIN PB2 #define Y_ENABLE_PIN PC2
#define Z_STEP_PIN PB11 #define Z_DIR_PIN PB1 #define Z_ENABLE_PIN PC5
#define E0_STEP_PIN PB14 #define E0_DIR_PIN PB0 #define E0_ENABLE_PIN PC4
Unlike the official datasheet (which is often kept proprietary by Creality), this document is a "living paper" created by enthusiasts who traced the physical circuit board to map every connection.
| Sensor | MCU ADC Pin | Reference voltage | |--------|-------------|-------------------| | Hotend | PA2 (ADC2) | 3.3V (via 4.7k pullup to 3.3V) | | Bed | PA3 (ADC3) | 3.3V (via 4.7k pullup to 3.3V) |
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