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MEGA_8BIT_SHIELD for Due

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prenticedavid
2016-06-10 08:21:46 +01:00
parent d6540e0b33
commit e6ce7fcfb3
1 changed files with 53 additions and 0 deletions
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53
mcufriend_special.h
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@@ -703,6 +703,59 @@ static inline void write_8(uint8_t val)
#define PIN_HIGH(port, pin) (port)->PIO_SODR = (1<<(pin))
#define PIN_OUTPUT(port, pin) (port)->PIO_OER = (1<<(pin))
#elif defined(__SAM3X8E__) && defined(USE_MEGA_8BIT_SHIELD) //regular CTE shield on DUE
#warning USE_MEGA_8BIT_SHIELD for peloxp
// configure macros for the control pins
#define RD_PORT PIOA
#define RD_PIN 20 //D43
#define WR_PORT PIOC
#define WR_PIN 7 //D39
#define CD_PORT PIOC
#define CD_PIN 6 //D38
#define CS_PORT PIOC
#define CS_PIN 8 //D40
#define RESET_PORT PIOC
#define RESET_PIN 9 //D41
// configure macros for data bus
//
#define DMASK ((15<<0)|(1<<6)) //PD0-PD3, PD6 D25-D28,D29
#define write_8(x) { PIOA->PIO_CODR = AMASK; PIOB->PIO_CODR = BMASK; PIOD->PIO_CODR = DMASK; \
PIOA->PIO_SODR = (((x)&(3<<9))<<5); \
PIOB->PIO_SODR = (((x)&(1<<8))<<18); \
PIOD->PIO_SODR = (((x)&(1<<7))<<2)|(((x)&(1<<5))<<5)|(((x)&(15<<11))>>11)|(((x)&(1<<15))>>9); \
}
#define read_8() ( 0\
|((PIOB->PIO_PDSR & (1<<26))>>18)\
|((PIOA->PIO_PDSR & (3<<14))>>5)\
|((PIOD->PIO_PDSR & (15<<0))<<11)\
|((PIOD->PIO_PDSR & (1<<6))<<9)\
)
#define setWriteDir() {\
PIOA->PIO_OER = AMASK; PIOA->PIO_PER = AMASK; \
PIOB->PIO_OER = BMASK; PIOB->PIO_PER = BMASK; \
PIOD->PIO_OER = DMASK; PIOD->PIO_PER = DMASK; \
}
#define setReadDir() { \
PMC->PMC_PCER0 = (1 << ID_PIOA)|(1 << ID_PIOB)|(1 << ID_PIOC)|(1 << ID_PIOD); \
PIOA->PIO_ODR = AMASK; \
PIOB->PIO_ODR = BMASK; \
PIOD->PIO_ODR = DMASK; \
}
// ILI9486 is slower than ILI9481
#define write8(x) { write_8(x); WR_ACTIVE; WR_ACTIVE; WR_STROBE; WR_IDLE; WR_IDLE; }
#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; dst = read_8(); RD_IDLE; 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))
#else
#define USE_SPECIAL_FAIL
#endif