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add write delay for ZERO, add macros for NUCLEO-STM32F103

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prenticedavid
2016-11-15 11:49:56 +00:00
parent 1fdbc7d822
commit 1437033112
1 changed files with 64 additions and 1 deletions
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65
mcufriend_shield.h
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@@ -122,7 +122,7 @@
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_STROBE; }
#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); }
@@ -283,6 +283,69 @@ void write_8(uint8_t x)
#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
#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)))
// be wise to clear both MODER bits properly.
#define clearModebits() { \
GPIOA->regs->CRH &= ~0xFFF; GPIOB->regs->CRH &= ~0xF00; GPIOB->regs->CRL &= ~0xFFF000; GPIOC->regs->CRL &= ~0xF0000000; \
}
#define setWriteDir() { \
clearModebits(); \
GPIOA->regs->CRH |= 0x333; GPIOB->regs->CRH |= 0x300; GPIOB->regs->CRL |= 0x333000; GPIOC->regs->CRL |= 0x30000000; \
}
#define setReadDir() { \
clearModebits(); \
GPIOA->regs->CRH |= 0x444; GPIOB->regs->CRH |= 0x400; GPIOB->regs->CRL |= 0x444000; GPIOC->regs->CRL |= 0x40000000; \
}
#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_MODE4(reg, pin, mode) reg=(reg&~(0xF<<((pin)<<2)))|(mode<<((pin)<<2))
#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) PIN_MODE4((port)->regs->CRL, pin, 0x3) //50MHz push-pull only 0-7
#define PIN_INPUT(port, pin) PIN_MODE4((port)->regs->CRL, pin, 0x4) //digital input
#else
#error MCU unsupported
#endif // regular UNO shields on Arduino boards