//#define USE_SPECIAL //check for custom drivers #if defined(USE_SPECIAL) #include "mcufriend_special.h" #if !defined(USE_SPECIAL_FAIL) #warning WE ARE USING A SPECIAL CUSTOM DRIVER #endif #endif #if !defined(USE_SPECIAL) || defined (USE_SPECIAL_FAIL) #if 0 #elif defined(__AVR_ATmega328P__) //regular UNO shield on UNO #define RD_PORT PORTC #define RD_PIN 0 #define WR_PORT PORTC #define WR_PIN 1 #define CD_PORT PORTC #define CD_PIN 2 #define CS_PORT PORTC #define CS_PIN 3 #define RESET_PORT PORTC #define RESET_PIN 4 #define BMASK 0x03 //more intuitive style for mixed Ports #define DMASK 0xFC //does exactly the same as previous #define write_8(x) { PORTB = (PORTB & ~BMASK) | ((x) & BMASK); PORTD = (PORTD & ~DMASK) | ((x) & DMASK); } #define read_8() ( (PINB & BMASK) | (PIND & DMASK) ) #define setWriteDir() { DDRB |= BMASK; DDRD |= DMASK; } #define setReadDir() { DDRB &= ~BMASK; DDRD &= ~DMASK; } #define write8(x) { write_8(x); WR_STROBE; } #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; dst = read_8(); RD_IDLE; } #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } #define PIN_LOW(p, b) (p) &= ~(1<<(b)) #define PIN_HIGH(p, b) (p) |= (1<<(b)) #define PIN_OUTPUT(p, b) *(&p-1) |= (1<<(b)) #elif defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__) //regular UNO shield on MEGA2560 #define RD_PORT PORTF #define RD_PIN 0 #define WR_PORT PORTF #define WR_PIN 1 #define CD_PORT PORTF #define CD_PIN 2 #define CS_PORT PORTF #define CS_PIN 3 #define RESET_PORT PORTF #define RESET_PIN 4 #define EMASK 0x38 #define GMASK 0x20 #define HMASK 0x78 #define write_8(x) { PORTH &= ~HMASK; PORTG &= ~GMASK; PORTE &= ~EMASK; \ PORTH |= (((x) & (3<<0)) << 5); \ PORTE |= (((x) & (3<<2)) << 2); \ PORTG |= (((x) & (1<<4)) << 1); \ PORTE |= (((x) & (1<<5)) >> 2); \ PORTH |= (((x) & (3<<6)) >> 3); \ } #define read_8() ( ((PINH & (3<<5)) >> 5)\ | ((PINE & (3<<4)) >> 2)\ | ((PING & (1<<5)) >> 1)\ | ((PINE & (1<<3)) << 2)\ | ((PINH & (3<<3)) << 3)\ ) #define setWriteDir() { DDRH |= HMASK; DDRG |= GMASK; DDRE |= EMASK; } #define setReadDir() { DDRH &= ~HMASK; DDRG &= ~GMASK; DDRE &= ~EMASK; } #define write8(x) { write_8(x); WR_STROBE; } #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; dst = read_8(); RD_IDLE; } #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } #define PIN_LOW(p, b) (p) &= ~(1<<(b)) #define PIN_HIGH(p, b) (p) |= (1<<(b)) #define PIN_OUTPUT(p, b) *(&p-1) |= (1<<(b)) #elif defined(__SAMD21G18A__) //regular UNO shield on ZERO or M0_PRO #include "sam.h" // configure macros for the control pins #define RD_PORT PORT->Group[0] #define RD_PIN 2 #define WR_PORT PORT->Group[1] #define WR_PIN 8 #define CD_PORT PORT->Group[1] #define CD_PIN 9 #define CS_PORT PORT->Group[0] #define CS_PIN 4 #define RESET_PORT PORT->Group[0] #define RESET_PIN 5 // configure macros for data bus #define DMASK 0x0030C3C0 // #define write_8(x) PORT->Group[0].OUT.reg = (PORT->Group[0].OUT.reg & ~DMASK)|(((x) & 0x0F) << 6)|(((x) & 0x30) << 10)|(((x) & 0xC0)<<14) #if defined(ARDUINO_SAMD_ZERO) || defined(ARDUINO_SAMD_ZERO) // American ZERO #define write_8(x) {\ PORT->Group[0].OUTCLR.reg = DMASK;\ PORT->Group[0].OUTSET.reg = (((x) & 0x0B) << 6)\ |(((x) & (1<<2)) << 12)\ |(((x) & (1<<4)) << 4)\ |(((x) & (1<<5)) << 10)\ |(((x) & 0xC0) << 14);\ } #define read_8() (((PORT->Group[0].IN.reg >> 6) & 0x0B)\ |((PORT->Group[0].IN.reg >> 12) & (1<<2))\ |((PORT->Group[0].IN.reg >> 4) & (1<<4))\ |((PORT->Group[0].IN.reg >> 10) & (1<<5))\ |((PORT->Group[0].IN.reg >> 14) & 0xC0)) #else //default to an M0_PRO on v1.6.5 or 1.7.6 #define write_8(x) {\ PORT->Group[0].OUTCLR.reg = DMASK;\ PORT->Group[0].OUTSET.reg = (((x) & 0x0F) << 6)\ |(((x) & 0x30) << 10)\ |(((x) & 0xC0) << 14);\ } #define read_8() (((PORT->Group[0].IN.reg >> 6) & 0x0F)|((PORT->Group[0].IN.reg >> 10) & 0x30)|((PORT->Group[0].IN.reg >> 14) & 0xC0)) #endif #define setWriteDir() { PORT->Group[0].DIRSET.reg = DMASK; \ PORT->Group[0].WRCONFIG.reg = (DMASK & 0xFFFF) | (0<<22) | (1<<28) | (1<<30); \ PORT->Group[0].WRCONFIG.reg = (DMASK>>16) | (0<<22) | (1<<28) | (1<<30) | (1<<31); \ } #define setReadDir() { PORT->Group[0].DIRCLR.reg = DMASK; \ PORT->Group[0].WRCONFIG.reg = (DMASK & 0xFFFF) | (1<<17) | (1<<28) | (1<<30); \ PORT->Group[0].WRCONFIG.reg = (DMASK>>16) | (1<<17) | (1<<28) | (1<<30) | (1<<31); \ } #define write8(x) { write_8(x); WR_ACTIVE; WR_STROBE; } #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; dst = read_8(); RD_IDLE; } #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } // Shield Control macros. #define PIN_LOW(port, pin) (port).OUTCLR.reg = (1<<(pin)) #define PIN_HIGH(port, pin) (port).OUTSET.reg = (1<<(pin)) #define PIN_OUTPUT(port, pin) (port).DIR.reg |= (1<<(pin)) #elif defined(__SAM3X8E__) //regular UNO shield on DUE // configure macros for the control pins #define RD_PORT PIOA #define RD_PIN 16 #define WR_PORT PIOA #define WR_PIN 24 #define CD_PORT PIOA #define CD_PIN 23 #define CS_PORT PIOA #define CS_PIN 22 #define RESET_PORT PIOA #define RESET_PIN 6 // configure macros for data bus #define BMASK (1<<25) #define CMASK (0xBF << 21) #define write_8(x) { PIOB->PIO_CODR = BMASK; PIOC->PIO_CODR = CMASK; \ PIOC->PIO_SODR = (((x) & (1<<0)) << 22); \ PIOC->PIO_SODR = (((x) & (1<<1)) << 20); \ PIOB->PIO_SODR = (((x) & (1<<2)) << 23); \ PIOC->PIO_SODR = (((x) & (1<<3)) << 25); \ PIOC->PIO_SODR = (((x) & (1<<4)) << 22); \ PIOC->PIO_SODR = (((x) & (1<<5)) << 20); \ PIOC->PIO_SODR = (((x) & (1<<6)) << 18); \ PIOC->PIO_SODR = (((x) & (1<<7)) << 16); \ } #define read_8() ( ((PIOC->PIO_PDSR & (1<<22)) >> 22)\ | ((PIOC->PIO_PDSR & (1<<21)) >> 20)\ | ((PIOB->PIO_PDSR & (1<<25)) >> 23)\ | ((PIOC->PIO_PDSR & (1<<28)) >> 25)\ | ((PIOC->PIO_PDSR & (1<<26)) >> 22)\ | ((PIOC->PIO_PDSR & (1<<25)) >> 20)\ | ((PIOC->PIO_PDSR & (1<<24)) >> 18)\ | ((PIOC->PIO_PDSR & (1<<23)) >> 16)\ ) #define setWriteDir() { PIOB->PIO_OER = BMASK; PIOC->PIO_OER = CMASK; } #define setReadDir() { \ PMC->PMC_PCER0 = (1 << ID_PIOB)|(1 << ID_PIOC);\ PIOB->PIO_ODR = BMASK; PIOC->PIO_ODR = CMASK;\ } #define write8(x) { write_8(x); WR_ACTIVE; WR_STROBE; } //#define write8(x) { write_8(x); WR_ACTIVE; WR_STROBE; WR_IDLE; } #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; RD_ACTIVE; dst = read_8(); RD_IDLE; RD_IDLE; } #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } // Shield Control macros. #define PIN_LOW(port, pin) (port)->PIO_CODR = (1<<(pin)) #define PIN_HIGH(port, pin) (port)->PIO_SODR = (1<<(pin)) #define PIN_OUTPUT(port, pin) (port)->PIO_OER = (1<<(pin)) #elif defined(__AVR_ATmega32U4__) //regular UNO shield on Leonardo #define RD_PORT PORTF #define RD_PIN 7 #define WR_PORT PORTF #define WR_PIN 6 #define CD_PORT PORTF #define CD_PIN 5 #define CS_PORT PORTF #define CS_PIN 4 #define RESET_PORT PORTF #define RESET_PIN 1 #define BMASK (3<<4) #define CMASK (1<<6) #define DMASK ((1<<7)|(1<<4)|(3<<0)) #define EMASK (1<<6) static inline //hope we use r24 void write_8(uint8_t x) { PORTB &= ~BMASK; PORTC &= ~CMASK; PORTD &= ~DMASK; PORTE &= ~EMASK; PORTB |= (((x) & (3 << 0)) << 4); PORTD |= (((x) & (1 << 2)) >> 1); PORTD |= (((x) & (1 << 3)) >> 3); PORTD |= (((x) & (1 << 4)) << 0); PORTC |= (((x) & (1 << 5)) << 1); PORTD |= (((x) & (1 << 6)) << 1); PORTE |= (((x) & (1 << 7)) >> 1); } #define read_8() ( ((PINB & (3<<4)) >> 4)\ | ((PIND & (1<<1)) << 1)\ | ((PIND & (1<<0)) << 3)\ | ((PIND & (1<<4)) >> 0)\ | ((PINC & (1<<6)) >> 1)\ | ((PIND & (1<<7)) >> 1)\ | ((PINE & (1<<6)) << 1)\ ) #define setWriteDir() { DDRB |= BMASK; DDRC |= CMASK; DDRD |= DMASK; DDRE |= EMASK; } #define setReadDir() { DDRB &= ~BMASK; DDRC &= ~CMASK; DDRD &= ~DMASK; DDRE &= ~EMASK; } #define write8(x) { write_8(x); WR_STROBE; } #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; dst = read_8(); RD_IDLE; } #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } #define PIN_LOW(p, b) (p) &= ~(1<<(b)) #define PIN_HIGH(p, b) (p) |= (1<<(b)) #define PIN_OUTPUT(p, b) *(&p-1) |= (1<<(b)) #elif defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__) // regular UNO shield on a Teensy 3.x #warning regular UNO shield on a Teensy 3.x #if defined(__MK20DX128__) || defined(__MK20DX256__) // Teensy3.0 || 3.2 96MHz #define WRITE_DELAY { WR_ACTIVE; WR_ACTIVE; } #define READ_DELAY { RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; } #elif defined(__MK64FX512__) // Teensy3.5 120MHz thanks to PeteJohno #define WRITE_DELAY { WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; } #define READ_DELAY { RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; } #elif defined(__MK66FX1M0__) // Teensy3.6 180MHz untested. delays can possibly be reduced. #define WRITE_DELAY { WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; } #define READ_DELAY { RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; } #else #error unspecified delays #endif #define RD_PORT GPIOD #define RD_PIN 1 #define WR_PORT GPIOC #define WR_PIN 0 #define CD_PORT GPIOB #define CD_PIN 0 #define CS_PORT GPIOB #define CS_PIN 1 #define RESET_PORT GPIOB #define RESET_PIN 3 // configure macros for the data pins #define AMASK ((1<<12)|(1<<13)) #define CMASK ((1<<3)) #define DMASK ((1<<0)|(1<<2)|(1<<3)|(1<<4)|(1<<7)) #define write_8(d) { \ GPIOA_PCOR = AMASK; GPIOC_PCOR = CMASK; GPIOD_PCOR = DMASK; \ GPIOA_PSOR = (((d) & (1 << 3)) << 9) \ | (((d) & (1 << 4)) << 9); \ GPIOC_PSOR = (((d) & (1 << 1)) << 2); \ GPIOD_PSOR = (((d) & (1 << 0)) << 3) \ | (((d) & (1 << 2)) >> 2) \ | (((d) & (1 << 5)) << 2) \ | (((d) & (1 << 6)) >> 2) \ | (((d) & (1 << 7)) >> 5); \ } #define read_8() ((((GPIOD_PDIR & (1<<3)) >> 3) \ | ((GPIOC_PDIR & (1 << 3)) >> 2) \ | ((GPIOD_PDIR & (1 << 0)) << 2) \ | ((GPIOA_PDIR & (1 << 12)) >> 9) \ | ((GPIOA_PDIR & (1 << 13)) >> 9) \ | ((GPIOD_PDIR & (1 << 7)) >> 2) \ | ((GPIOD_PDIR & (1 << 4)) << 2) \ | ((GPIOD_PDIR & (1 << 2)) << 5))) #define setWriteDir() {GPIOA_PDDR |= AMASK;GPIOC_PDDR |= CMASK;GPIOD_PDDR |= DMASK; } #define setReadDir() {GPIOA_PDDR &= ~AMASK;GPIOC_PDDR &= ~CMASK;GPIOD_PDDR &= ~DMASK; } #define write8(x) { write_8(x); WRITE_DELAY; WR_STROBE; } //PJ adjusted #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; READ_DELAY; dst = read_8(); RD_IDLE; } //PJ adjusted #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } #define PASTE(x, y) x ## y #define PIN_LOW(port, pin) PASTE(port, _PCOR) = (1<<(pin)) #define PIN_HIGH(port, pin) PASTE(port, _PSOR) = (1<<(pin)) #define PIN_OUTPUT(port, pin) PASTE(port, _PDDR) |= (1<<(pin)) #elif defined(__STM32F1__) && defined(ARDUINO_STM_NUCLEO_F103RB) // Uno Shield on NUCLEO-F103 #warning Uno Shield on NUCLEO-F103 REGS // be wise to clear all four mode bits properly. #define GROUP_MODE(port, reg, mask, val) {port->regs->reg = (port->regs->reg & ~(mask)) | ((mask)&(val)); } #define GP_OUT(port, reg, mask) GROUP_MODE(port, reg, mask, 0x33333333) #define GP_INP(port, reg, mask) GROUP_MODE(port, reg, mask, 0x44444444) #define RD_PORT GPIOA #define RD_PIN 0 #define WR_PORT GPIOA #define WR_PIN 1 #define CD_PORT GPIOA #define CD_PIN 4 #define CS_PORT GPIOB #define CS_PIN 0 #define RESET_PORT GPIOC #define RESET_PIN 1 // configure macros for the data pins #define write_8(d) { \ GPIOA->regs->BSRR = 0x0700 << 16; \ GPIOB->regs->BSRR = 0x0438 << 16; \ GPIOC->regs->BSRR = 0x0080 << 16; \ GPIOA->regs->BSRR = (((d) & (1<<0)) << 9) \ | (((d) & (1<<2)) << 8) \ | (((d) & (1<<7)) << 1); \ GPIOB->regs->BSRR = (((d) & (1<<3)) << 0) \ | (((d) & (1<<4)) << 1) \ | (((d) & (1<<5)) >> 1) \ | (((d) & (1<<6)) << 4); \ GPIOC->regs->BSRR = (((d) & (1<<1)) << 6); \ } #define read_8() ( (((GPIOA->regs->IDR & (1<<9)) >> 9) \ | ((GPIOC->regs->IDR & (1<<7)) >> 6) \ | ((GPIOA->regs->IDR & (1<<10)) >> 8) \ | ((GPIOB->regs->IDR & (1<<3)) >> 0) \ | ((GPIOB->regs->IDR & (1<<5)) >> 1) \ | ((GPIOB->regs->IDR & (1<<4)) << 1) \ | ((GPIOB->regs->IDR & (1<<10)) >> 4) \ | ((GPIOA->regs->IDR & (1<<8)) >> 1))) // PA10,PA9,PA8 PB10 PB5,PB4,PB3 PC7 #define setWriteDir() {GP_OUT(GPIOA, CRH, 0xFFF); GP_OUT(GPIOB, CRH, 0xF00); GP_OUT(GPIOB, CRL, 0xFFF000); GP_OUT(GPIOC, CRL, 0xF0000000); } #define setReadDir() {GP_INP(GPIOA, CRH, 0xFFF); GP_INP(GPIOB, CRH, 0xF00); GP_INP(GPIOB, CRL, 0xFFF000); GP_INP(GPIOC, CRL, 0xF0000000); } #define write8(x) { write_8(x); WR_ACTIVE; WR_STROBE; } #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; dst = read_8(); RD_IDLE; } #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } #define PIN_HIGH(port, pin) (port)->regs->BSRR = (1<<(pin)) //#define PIN_LOW(port, pin) (port)->regs->BSRR = (1<<((pin)+16)) #define PIN_LOW(port, pin) (port)->regs->ODR &= ~(1<<(pin)) #if 0 #define PIN_OUTPUT(port, pin) { \ if (pin < 8) { GP_OUT(port, CRL, 0xF<<((pin)<<2)); } \ else { GP_OUT(port, CRH, 0xF<<((pin-8)<<2)); } \ } #define PIN_INPUT(port, pin) { \ if (pin < 8) { GP_INP(port, CRL, 0xF<<((pin)<<2)); } \ else { GP_INP(port, CRH, 0xF<<((pin-8)<<2)); } \ } #elif 1 #define PIN_OUTPUT(port, pin) gpio_set_mode(port, pin, GPIO_OUTPUT_PP) //50MHz push-pull only 0-7 #define PIN_INPUT(port, pin) gpio_set_mode(port, pin, GPIO_INPUT_FLOATING) //digital input #else #define PIN_OUTPUT(port, pin) GP_OUT(port, CRL, 0xF<<((pin)<<2)) //50MHz push-pull only 0-7 #define PIN_INPUT(port, pin) GP_INP(port, CRL, 0xF<<((pin)<<2)) //digital input #endif //#elif defined(__STM32F1__) && defined(ARDUINO_GENERIC_STM32F103R) #elif defined(__STM32F1__) && defined(ARDUINO_MAPLE_REV3) // Uno Shield on MAPLE_REV3 board #warning Uno Shield on MAPLE_REV3 board // be wise to clear all four mode bits properly. #define GROUP_MODE(port, reg, mask, val) {port->regs->reg = (port->regs->reg & ~(mask)) | ((mask)&(val)); } #define GP_OUT(port, reg, mask) GROUP_MODE(port, reg, mask, 0x33333333) #define GP_INP(port, reg, mask) GROUP_MODE(port, reg, mask, 0x44444444) #define RD_PORT GPIOC #define RD_PIN 0 #define WR_PORT GPIOC #define WR_PIN 1 #define CD_PORT GPIOC #define CD_PIN 2 #define CS_PORT GPIOC #define CS_PIN 3 #define RESET_PORT GPIOC #define RESET_PIN 4 // configure macros for the data pins #define write_8(d) { \ GPIOA->regs->BSRR = 0x0703 << 16; \ GPIOB->regs->BSRR = 0x00E0 << 16; \ GPIOA->regs->BSRR = (((d) & (1<<0)) << 10) \ | (((d) & (1<<2)) >> 2) \ | (((d) & (1<<3)) >> 2) \ | (((d) & (1<<6)) << 2) \ | (((d) & (1<<7)) << 2); \ GPIOB->regs->BSRR = (((d) & (1<<1)) << 6) \ | (((d) & (1<<4)) << 1) \ | (((d) & (1<<5)) << 1); \ } #define read_8() ( (((GPIOA->regs->IDR & (1<<10)) >> 10) \ | ((GPIOB->regs->IDR & (1<<7)) >> 6) \ | ((GPIOA->regs->IDR & (1<<0)) << 2) \ | ((GPIOA->regs->IDR & (1<<1)) << 2) \ | ((GPIOB->regs->IDR & (1<<5)) >> 1) \ | ((GPIOB->regs->IDR & (1<<6)) >> 1) \ | ((GPIOA->regs->IDR & (1<<8)) >> 2) \ | ((GPIOA->regs->IDR & (1<<9)) >> 2))) // PA10,PA9,PA8 PA1,PA0 PB7,PB6,PB5 #define setWriteDir() {GP_OUT(GPIOA, CRH, 0xFFF); GP_OUT(GPIOA, CRL, 0xFF); GP_OUT(GPIOB, CRL, 0xFFF00000); } #define setReadDir() {GP_INP(GPIOA, CRH, 0xFFF); GP_INP(GPIOA, CRL, 0xFF); GP_INP(GPIOB, CRL, 0xFFF00000); } // MANOLO8888's wiring scheme is far simpler: //#define write_8(d) { GPIOA->regs->BSRR = 0x00FF << 16; GPIOA->regs->BSRR = (d) & 0xFF; } //#define read_8() (GPIOA->regs->IDR & 0xFF) // PA7 ..PA0 //#define setWriteDir() {GP_OUT(GPIOA, CRL, 0xFFFFFFFF); } //#define setReadDir() {GP_INP(GPIOA, CRL, 0xFFFFFFFF); } #define write8(x) { write_8(x); WR_ACTIVE; WR_STROBE; } #define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); } #define READ_8(dst) { RD_STROBE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; dst = read_8(); RD_IDLE; } #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); } #define PIN_HIGH(port, pin) (port)->regs->BSRR = (1<<(pin)) //#define PIN_LOW(port, pin) (port)->regs->BSRR = (1<<((pin)+16)) #define PIN_LOW(port, pin) (port)->regs->ODR &= ~(1<<(pin)) #define PIN_OUTPUT(port, pin) GP_OUT(port, CRL, 0xF<<((pin)<<2)) //50MHz push-pull only 0-7 #define PIN_INPUT(port, pin) GP_INP(port, CRL, 0xF<<((pin)<<2)) //digital input #else #error MCU unsupported #endif // regular UNO shields on Arduino boards #endif //!defined(USE_SPECIAL) || defined (USE_SPECIAL_FAIL) #define RD_ACTIVE PIN_LOW(RD_PORT, RD_PIN) #define RD_IDLE PIN_HIGH(RD_PORT, RD_PIN) #define RD_OUTPUT PIN_OUTPUT(RD_PORT, RD_PIN) #define WR_ACTIVE PIN_LOW(WR_PORT, WR_PIN) #define WR_IDLE PIN_HIGH(WR_PORT, WR_PIN) #define WR_OUTPUT PIN_OUTPUT(WR_PORT, WR_PIN) #define CD_COMMAND PIN_LOW(CD_PORT, CD_PIN) #define CD_DATA PIN_HIGH(CD_PORT, CD_PIN) #define CD_OUTPUT PIN_OUTPUT(CD_PORT, CD_PIN) #define CS_ACTIVE PIN_LOW(CS_PORT, CS_PIN) #define CS_IDLE PIN_HIGH(CS_PORT, CS_PIN) #define CS_OUTPUT PIN_OUTPUT(CS_PORT, CS_PIN) #define RESET_ACTIVE PIN_LOW(RESET_PORT, RESET_PIN) #define RESET_IDLE PIN_HIGH(RESET_PORT, RESET_PIN) #define RESET_OUTPUT PIN_OUTPUT(RESET_PORT, RESET_PIN) // General macros. IOCLR registers are 1 cycle when optimised. #define WR_STROBE { WR_ACTIVE; WR_IDLE; } //PWLW=TWRL=50ns #define RD_STROBE RD_IDLE, RD_ACTIVE, RD_ACTIVE, RD_ACTIVE //PWLR=TRDL=150ns, tDDR=100ns #if defined(TEENSYDUINO) #warning special pinMode() initialisation for TEENSYDUINO #define CTL_INIT() { \ for (int i = 2; i <= 9; i++) pinMode(i, OUTPUT); \ for (int i = A0; i <= A4; i++) pinMode(i, OUTPUT); \ RD_OUTPUT; WR_OUTPUT; CD_OUTPUT; CS_OUTPUT; RESET_OUTPUT; } #else #define CTL_INIT() { RD_OUTPUT; WR_OUTPUT; CD_OUTPUT; CS_OUTPUT; RESET_OUTPUT; } #endif #define WriteCmd(x) { CD_COMMAND; write16(x); } #define WriteData(x) { CD_DATA; write16(x); }