Pins.h

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#ifndef PINS_H_
#define PINS_H_
 
#include <Arduino.h>
#include <util/delay.h>
#include <avr/io.h>
 
#define SET_REG_BIT(x, y) x |= (1 << y);                    
#define CLEAR_REG_BIT(x, y) x &= ~(1 << y);                 
 
// Chip select pin bit positions (They are used for faster access than the arduino digital write methods)
#define BIT_POS_TS_CS       PORTA3      
#define BIT_POS_TFT_CS      PORTB1      
#define BIT_POS_IO_EXP_CS   PORTB2      
#define BIT_POS_DDS_CS      PORTB3      
#define BIT_POS_PS_CS       PORTB4      
 
// https://camo.githubusercontent.com/331d26748c79ccaf42bb0837711b14728c82e47e6fd21b2997a1b9c5155cf672/68747470733a2f2f692e696d6775722e636f6d2f7a424e506335622e706e67
#define PIN_NUMBER_TFT_A0       0       
#define PIN_NUMBER_TFT_CS       1       
#define PIN_NUMBER_IO_EXP_CS    2       
#define PIN_NUMBER_DDS_CS       3       
#define PIN_NUMBER_PS_CS        4       
 
#define PIN_NUMBER_USB_RX       8       
#define PIN_NUMBER_USB_TX       9       
#define PIN_NUMBER_ENC_A        10      
#define PIN_NUMBER_ENC_B        11      
#define PIN_NUMBER_ENC_PB       12      
#define PIN_NUMBER_DMM1_NEG     13      
#define PIN_NUMBER_DMM2_NEG     14      
#define PIN_NUMBER_IO_EXP_INT   15      
 
// Caution: The key pin numbers are not used. In the KeyPad.h file the complete port C is used directly.
#define PIN_NUMBER_KEY_C1       16      
#define PIN_NUMBER_KEY_C2       17      
#define PIN_NUMBER_KEY_C3       18      
#define PIN_NUMBER_KEY_C4       19      
#define PIN_NUMBER_KEY_R1       20      
#define PIN_NUMBER_KEY_R2       21      
#define PIN_NUMBER_KEY_R3       22      
#define PIN_NUMBER_KEY_R4       23      
 
#define PIN_NUMBER_ADC_PS_CUR   24      
#define PIN_NUMBER_ADC_PS_VOLT  25      
#define PIN_NUMBER_TOUCH_IRQ    26      
#define PIN_NUMBER_TOUCH_CS     27      
#define PIN_NUMBER_ADC_5V       28      
#define PIN_NUMBER_ADC_3V3      29      
#define PIN_NUMBER_ADC_DVM1     30      
#define PIN_NUMBER_ADC_DVM2     31      

void Pins_Init();
 

#define SPI_SELECT_TOUCH        CLEAR_REG_BIT(PORTA, BIT_POS_TS_CS)             
#define SPI_DESELECT_TOUCH      SET_REG_BIT(PORTA, BIT_POS_TS_CS)               
 
#define SPI_SELECT_TFT          CLEAR_REG_BIT(PORTB, BIT_POS_TFT_CS)            
#define SPI_DESELECT_TFT        SET_REG_BIT(PORTB, BIT_POS_TFT_CS)              
 
#define SPI_SELECT_DDS          CLEAR_REG_BIT(PORTB, BIT_POS_DDS_CS)            
#define SPI_DESELECT_DDS        SET_REG_BIT(PORTB, BIT_POS_DDS_CS)              
 
#define SPI_SELECT_PS           CLEAR_REG_BIT(PORTB, BIT_POS_PS_CS)             
#define SPI_DESELECT_PS         SET_REG_BIT(PORTB, BIT_POS_PS_CS)               
 
#define SPI_SELECT_IO_EXP       CLEAR_REG_BIT(PORTB, BIT_POS_IO_EXP_CS)         
#define SPI_DESELECT_IO_EXP     SET_REG_BIT(PORTB, BIT_POS_IO_EXP_CS)           
 
#define BITMASK_CS_PORTA        (1 << BIT_POS_TS_CS)                                                                                
#define BITMASK_CS_PORTB        (1 << BIT_POS_PS_CS) | (1 << BIT_POS_DDS_CS) | (1 << BIT_POS_IO_EXP_CS) | (1 << BIT_POS_TFT_CS)     
#define SPI_DESELECT_ALL        PORTA |= BITMASK_CS_PORTA; PORTB |= BITMASK_CS_PORTB;                                               
 
#endif /* PINS_H_ */