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mcufriend_shield.h
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// Place this file in libraries\MCUFRIEND_kbv\utility
#define ARDUINO_BLUEPILL_F103C8
//#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
//################################### UNO ##############################
#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))
//################################### MEGA2560 ##############################
#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))
//################################# ZERO and M0_PRO ############################
#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))
//####################################### DUE ############################
#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))
//################################### LEONARDO ##############################
#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))
//################################### UNO SHIELD on BOBUINO ##############################
#elif defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega644P__) //UNO shield on BOBUINO
#warning regular UNO shield on BOBUINO
#define RD_PORT PORTA
#define RD_PIN 7
#define WR_PORT PORTA
#define WR_PIN 6
#define CD_PORT PORTA
#define CD_PIN 5
#define CS_PORT PORTA
#define CS_PIN 4
#define RESET_PORT PORTA
#define RESET_PIN 3
#define BMASK 0x0F //
#define DMASK 0x6C //
#define write_8(x) { PORTB = (PORTB & ~BMASK) | ((x) >> 4); \
PORTD = (PORTD & ~DMASK) | ((x) & 0x0C) | (((x) & 0x03) << 5); }
#define read_8() ( (PINB << 4) | (PIND & 0x0C) | ((PIND & 0x60) >> 5) )
#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))
//####################################### TEENSY ############################
#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; 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 GPIO_INIT() {SIM_SCGC5 |= 0x3E00;} //PORTA-PORTE
#define GPIO_INIT() {for (int i = 2; i <= 9; i++) pinMode(i, OUTPUT); for (int i = A0; i <= A4; i++) pinMode(i, OUTPUT);}
#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))
//####################################### STM32 ############################
// NUCLEO: ARDUINO_NUCLEO_xxxx from ST Core or ARDUINO_STM_NUCLEO_F103RB from MapleCore
// BLUEPILL: ARDUINO_NUCLEO_F103C8 / ARDUINO_BLUEPILL_F103C8 from ST Core or ARDUINO_GENERIC_STM32F103C from MapleCore
// MAPLE_REV3: n/a from ST Core or ARDUINO_MAPLE_REV3 from MapleCore
// ST Core: ARDUINO_ARCH_STM32
// MapleCore: __STM32F1__
#elif defined(__STM32F1__) || defined(ARDUINO_ARCH_STM32) //MapleCore or ST Core
#define IS_NUCLEO64 ( defined(ARDUINO_STM_NUCLEO_F103RB) \
|| defined(ARDUINO_NUCLEO_F030R8) || defined(ARDUINO_NUCLEO_F091RC) \
|| defined(ARDUINO_NUCLEO_F103RB) || defined(ARDUINO_NUCLEO_F303RE) \
|| defined(ARDUINO_NUCLEO_F401RE) || defined(ARDUINO_NUCLEO_F411RE) \
|| defined(ARDUINO_NUCLEO_F446RE) || defined(ARDUINO_NUCLEO_L053R8) \
|| defined(ARDUINO_NUCLEO_L152RE) || defined(ARDUINO_NUCLEO_L476RG) \
)
// F1xx, F4xx, L4xx have different registers and styles. General Macros
#if defined(__STM32F1__) //weird Maple Core
#define REGS(x) regs->x
#else //regular ST Core
#define REGS(x) x
#endif
#define PIN_HIGH(port, pin) (port)-> REGS(BSRR) = (1<<(pin))
#define PIN_LOW(port, pin) (port)-> REGS(BSRR) = (1<<((pin)+16))
#define PIN_MODE2(reg, pin, mode) reg=(reg&~(0x3<<((pin)<<1)))|(mode<<((pin)<<1))
#define GROUP_MODE(port, reg, mask, val) {port->REGS(reg) = (port->REGS(reg) & ~(mask)) | ((mask)&(val)); }
// Family specific Macros. F103 needs ST and Maple compatibility
// note that ILI9320 class of controller has much slower Read cycles
#if 0
#elif defined(__STM32F1__) || defined(ARDUINO_NUCLEO_F103C8) || defined(ARDUINO_BLUEPILL_F103C8) || defined(ARDUINO_NUCLEO_F103RB)
#define WRITE_DELAY { }
#define READ_DELAY { RD_ACTIVE; }
#if defined(__STM32F1__) //MapleCore crts.o does RCC. not understand regular syntax anyway
#define GPIO_INIT()
#else
#define GPIO_INIT() { RCC->APB2ENR |= RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_IOPCEN | RCC_APB2ENR_IOPDEN | RCC_APB2ENR_AFIOEN; \
AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_1;}
#endif
#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 PIN_OUTPUT(port, pin) {\
if (pin < 8) {GP_OUT(port, CRL, 0xF<<((pin)<<2));} \
else {GP_OUT(port, CRH, 0xF<<((pin&7)<<2));} \
}
#define PIN_INPUT(port, pin) { \
if (pin < 8) { GP_INP(port, CRL, 0xF<<((pin)<<2)); } \
else { GP_INP(port, CRH, 0xF<<((pin&7)<<2)); } \
}
// should be easy to add F030, F091, F303, L053, ...
#elif defined(STM32F030x8)
#define WRITE_DELAY { }
#define READ_DELAY { RD_ACTIVE; }
#define GPIO_INIT() { RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#elif defined(STM32F091xC)
#define WRITE_DELAY { }
#define READ_DELAY { RD_ACTIVE; }
#define GPIO_INIT() { RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#elif defined(STM32F303xE)
#define WRITE_DELAY { }
#define READ_DELAY { RD_ACTIVE; }
#define GPIO_INIT() { RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOCEN; \
/* AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_1; */ }
#elif defined(STM32F401xE)
#define WRITE_DELAY { WR_ACTIVE; WR_ACTIVE; }
#define READ_DELAY { RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; }
#define GPIO_INIT() { RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN | RCC_AHB1ENR_GPIOBEN | RCC_AHB1ENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#elif defined(STM32F411xE)
#define WRITE_DELAY { WR_ACTIVE; WR_ACTIVE; WR_ACTIVE; }
#define READ_DELAY { RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; }
#define GPIO_INIT() { RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN | RCC_AHB1ENR_GPIOBEN | RCC_AHB1ENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#elif defined(STM32F446xx)
#define WRITE_DELAY { 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; }
#define GPIO_INIT() { RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN | RCC_AHB1ENR_GPIOBEN | RCC_AHB1ENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#elif defined(STM32L053xx)
#define WRITE_DELAY { }
#define READ_DELAY { RD_ACTIVE; }
#define GPIO_INIT() { RCC->IOPENR |= RCC_IOPENR_GPIOAEN | RCC_IOPENR_GPIOBEN | RCC_IOPENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#elif defined(STM32L152xE)
#define WRITE_DELAY { }
#define READ_DELAY { RD_ACTIVE; }
#define GPIO_INIT() { RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#elif defined(STM32L476xx)
#define WRITE_DELAY { WR_ACTIVE; WR_ACTIVE; }
#define READ_DELAY { RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; }
#define GPIO_INIT() { RCC->AHB2ENR |= RCC_AHB2ENR_GPIOAEN | RCC_AHB2ENR_GPIOBEN | RCC_AHB2ENR_GPIOCEN; }
#define PIN_OUTPUT(port, pin) PIN_MODE2((port)->MODER, pin, 0x1)
#else
#error unsupported STM32
#endif
#if 0
#elif defined(ARDUINO_GENERIC_STM32F103C) || defined(ARDUINO_NUCLEO_F103C8) || defined(ARDUINO_BLUEPILL_F103C8)
#warning Uno Shield on BLUEPILL
#define RD_PORT GPIOB
#define RD_PIN 5
//#define RD_PIN 0 //hardware mod to Adapter. Allows use of PB5 for SD Card
#define WR_PORT GPIOB
#define WR_PIN 6
#define CD_PORT GPIOB
#define CD_PIN 7
#define CS_PORT GPIOB
#define CS_PIN 8
#define RESET_PORT GPIOB
#define RESET_PIN 9
// configure macros for the data pins
#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); }
#elif IS_NUCLEO64 // Uno Shield on NUCLEO
#warning Uno Shield on NUCLEO
#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)))
#if defined(ARDUINO_NUCLEO_F103RB) || defined(ARDUINO_STM_NUCLEO_F103RB) //F103 has unusual GPIO modes
// 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); }
#else //F0xx, F3xx, F4xx, L0xx, L1xx, L4xx use MODER
// PA10,PA9,PA8 PB10,PB5,PB4,PB3 PC7
#define setWriteDir() { setReadDir(); \
GPIOA->MODER |= 0x150000; GPIOB->MODER |= 0x100540; GPIOC->MODER |= 0x4000; }
#define setReadDir() { GPIOA->MODER &= ~0x3F0000; GPIOB->MODER &= ~0x300FC0; GPIOC->MODER &= ~0xC000; }
#endif
#elif defined(ARDUINO_MAPLE_REV3) // Uno Shield on MAPLE_REV3 board
#warning Uno Shield on MAPLE_REV3 board
#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); }
#else
#error REGS group
#endif
#define write8(x) { write_8(x); WRITE_DELAY; WR_STROBE; WR_IDLE; }
#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; RD_IDLE; }
#define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); }
//################################### ESP32 ##############################
#elif defined(ESP32) //regular UNO shield on TTGO D1 R32 (ESP32)
#define LCD_RD 2 //LED
#define LCD_WR 4
#define LCD_RS 15 //hard-wired to A2 (GPIO35)
#define LCD_CS 33 //hard-wired to A3 (GPIO34)
#define LCD_RST 32 //hard-wired to A4 (GPIO36)
#define LCD_D0 12
#define LCD_D1 13
#define LCD_D2 26
#define LCD_D3 25
#define LCD_D4 17
#define LCD_D5 16
#define LCD_D6 27
#define LCD_D7 14
#define RD_PORT GPIO.out
#define RD_PIN LCD_RD
#define WR_PORT GPIO.out
#define WR_PIN LCD_WR
#define CD_PORT GPIO.out
#define CD_PIN LCD_RS
#define CS_PORT GPIO.out1.val
#define CS_PIN LCD_CS
#define RESET_PORT GPIO.out1.val
#define RESET_PIN LCD_RST
static inline uint32_t map_8(uint32_t d)
{
return (
0
| ((d & (1 << 0)) << (LCD_D0 - 0))
| ((d & (1 << 1)) << (LCD_D1 - 1))
| ((d & (1 << 2)) << (LCD_D2 - 2))
| ((d & (1 << 3)) << (LCD_D3 - 3))
| ((d & (1 << 4)) << (LCD_D4 - 4))
| ((d & (1 << 5)) << (LCD_D5 - 5))
| ((d & (1 << 6)) << (LCD_D6 - 6))
| ((d & (1 << 7)) << (LCD_D7 - 7))
);
}
static inline uint8_t map_32(uint32_t d)
{
return (
0
| ((d & (1 << LCD_D0)) >> (LCD_D0 - 0))
| ((d & (1 << LCD_D1)) >> (LCD_D1 - 1))
| ((d & (1 << LCD_D2)) >> (LCD_D2 - 2))
| ((d & (1 << LCD_D3)) >> (LCD_D3 - 3))
| ((d & (1 << LCD_D4)) >> (LCD_D4 - 4))
| ((d & (1 << LCD_D5)) >> (LCD_D5 - 5))
| ((d & (1 << LCD_D6)) >> (LCD_D6 - 6))
| ((d & (1 << LCD_D7)) >> (LCD_D7 - 7))
);
}
static inline void write_8(uint16_t data)
{
GPIO.out_w1tc = map_8(0xFF); //could define once as DMASK
GPIO.out_w1ts = map_8(data);
}
static inline uint8_t read_8()
{
return map_32(GPIO.in);
}
static void setWriteDir()
{
pinMode(LCD_D0, OUTPUT);
pinMode(LCD_D1, OUTPUT);
pinMode(LCD_D2, OUTPUT);
pinMode(LCD_D3, OUTPUT);
pinMode(LCD_D4, OUTPUT);
pinMode(LCD_D5, OUTPUT);
pinMode(LCD_D6, OUTPUT);
pinMode(LCD_D7, OUTPUT);
}
static void setReadDir()
{
pinMode(LCD_D0, INPUT);
pinMode(LCD_D1, INPUT);
pinMode(LCD_D2, INPUT);
pinMode(LCD_D3, INPUT);
pinMode(LCD_D4, INPUT);
pinMode(LCD_D5, INPUT);
pinMode(LCD_D6, INPUT);
pinMode(LCD_D7, INPUT);
}
#define WRITE_DELAY { }
#define READ_DELAY { }
#define write8(x) { write_8(x); WRITE_DELAY; WR_STROBE; }
#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; }
#define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); }
#define PIN_LOW(p, b) (digitalWrite(b, LOW))
#define PIN_HIGH(p, b) (digitalWrite(b, HIGH))
#define PIN_OUTPUT(p, b) (pinMode(b, OUTPUT))
#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(GPIO_INIT)
#define GPIO_INIT()
#endif
#define CTL_INIT() { GPIO_INIT(); RD_OUTPUT; WR_OUTPUT; CD_OUTPUT; CS_OUTPUT; RESET_OUTPUT; }
#define WriteCmd(x) { CD_COMMAND; write16(x); CD_DATA; }
#define WriteData(x) { write16(x); }