116 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			116 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C
		
	
	
	
| /*********************************************************************************
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|  *  MIT License
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|  *  
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|  *  Copyright (c) 2023 Gregg E. Berman
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|  *  
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|  *  https://github.com/HomeSpan/HomeSpan
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|  *  
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|  *  Permission is hereby granted, free of charge, to any person obtaining a copy
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|  *  of this software and associated documentation files (the "Software"), to deal
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|  *  in the Software without restriction, including without limitation the rights
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|  *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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|  *  copies of the Software, and to permit persons to whom the Software is
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|  *  furnished to do so, subject to the following conditions:
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|  *  
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|  *  The above copyright notice and this permission notice shall be included in all
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|  *  copies or substantial portions of the Software.
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|  *  
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|  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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|  *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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|  *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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|  *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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|  *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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|  *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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|  *  SOFTWARE.
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|  *  
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|  ********************************************************************************/
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|  
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|  #include "extras/StepperControl.h"
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| 
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| //////////////////////////
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| 
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| struct Stepper_TB6612 : StepperControl {
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| 
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|   int pins[4];
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|   uint8_t phase;
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|   uint8_t nPhases;
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|   uint32_t runCode;
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| 
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| //////////////////////////
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| 
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|   Stepper_TB6612(int a1Pin, int a2Pin, int b1Pin, int b2Pin) : StepperControl(){    
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|     pins[3]=a1Pin;
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|     pins[2]=a2Pin;
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|     pins[1]=b1Pin;
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|     pins[0]=b2Pin;
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| 
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|     for(int i=0;i<4;i++)
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|       pinMode(pins[i],OUTPUT);
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| 
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|     setStepType(FULL_STEP_TWO_PHASE);
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|   }
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| 
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| //////////////////////////
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| 
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|   void onEnable() override {
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|     setPinCode((runCode>>(phase*4)) & 0xF);
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|   }
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| 
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| //////////////////////////
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| 
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|   void onDisable() override {
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|     setPinCode(0);
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|   }
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| 
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| //////////////////////////
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| 
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|   void onBrake() override {
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|     setPinCode(0xF);
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|   }
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| 
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| //////////////////////////
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| 
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|   void onStep(boolean direction){
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|     if(direction)
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|       phase=(phase+1)%nPhases;
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|     else
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|       phase=(phase+nPhases-1)%nPhases;
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|       
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|     setPinCode((runCode>>(phase*4)) & 0xF);    
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|   }
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| 
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| //////////////////////////
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| 
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|   void setPinCode(uint8_t pinCode){
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|     for(int i=0;i<4;i++)
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|       digitalWrite(pins[i],(pinCode>>i)&1);    
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|   }
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| 
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| //////////////////////////
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| 
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|   void setStepType(int mode) override {
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|     switch(mode){
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|       case FULL_STEP_ONE_PHASE:
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|         phase=0;
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|         nPhases=4;
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|         runCode=0x2418;
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|         break;
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|       case FULL_STEP_TWO_PHASE:
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|         phase=0;
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|         nPhases=4;
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|         runCode=0x659A;
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|         break;
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|       case HALF_STEP:
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|         phase=0;
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|         nPhases=8;
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|         runCode=0x2645198A;
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|         break;
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|       default:
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|         ESP_LOGE(TAG,"Unknown StepType=%d.  Stepper Unchanged",mode);
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|     }
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|   }
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|   
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| };
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| 
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| //////////////////////////
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