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add driver for BluePill Shield Adapter

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prenticedavid
2017-03-22 22:35:26 +00:00
parent 7b4eea0efc
commit 3b98e86790
1 changed files with 37 additions and 0 deletions
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37
utility/mcufriend_shield.h
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@@ -431,6 +431,43 @@ void write_8(uint8_t x)
#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
#elif defined(__STM32F1__) && defined(ARDUINO_GENERIC_STM32F103C) // Uno Shield on BLUEPILL_ADAPTER
#warning Uno Shield on BLUEPILL_ADAPTER
// 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 GPIOB
#define RD_PIN 5
#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
// 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) gpio_set_mode(port, pin, GPIO_OUTPUT_PP) //50MHz push-pull on 0-15
#define PIN_INPUT(port, pin) gpio_set_mode(port, pin, GPIO_INPUT_FLOATING) //digital input
#else
#error MCU unsupported
#endif // regular UNO shields on Arduino boards