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enum {
PORT_A,
PORT_B,
PORT_C,
PORT_D,
PORT_E,
PORT_F,
PORT_G,
PORT_H,
PORT_I,
PORT_J,
};
enum {
AF_FN_TIM,
AF_FN_I2C,
AF_FN_USART,
AF_FN_UART = AF_FN_USART,
AF_FN_SPI
};
enum {
AF_PIN_TYPE_TIM_CH1 = 0,
AF_PIN_TYPE_TIM_CH2,
AF_PIN_TYPE_TIM_CH3,
AF_PIN_TYPE_TIM_CH4,
AF_PIN_TYPE_TIM_CH1N,
AF_PIN_TYPE_TIM_CH2N,
AF_PIN_TYPE_TIM_CH3N,
AF_PIN_TYPE_TIM_CH1_ETR,
AF_PIN_TYPE_TIM_ETR,
AF_PIN_TYPE_TIM_BKIN,
AF_PIN_TYPE_I2C_SDA = 0,
AF_PIN_TYPE_I2C_SCL,
AF_PIN_TYPE_USART_TX = 0,
AF_PIN_TYPE_USART_RX,
AF_PIN_TYPE_USART_CTS,
AF_PIN_TYPE_USART_RTS,
AF_PIN_TYPE_USART_CK,
AF_PIN_TYPE_UART_TX = AF_PIN_TYPE_USART_TX,
AF_PIN_TYPE_UART_RX = AF_PIN_TYPE_USART_RX,
AF_PIN_TYPE_UART_CTS = AF_PIN_TYPE_USART_CTS,
AF_PIN_TYPE_UART_RTS = AF_PIN_TYPE_USART_RTS,
AF_PIN_TYPE_SPI_MOSI = 0,
AF_PIN_TYPE_SPI_MISO,
AF_PIN_TYPE_SPI_SCK,
AF_PIN_TYPE_SPI_NSS,
};
typedef struct {
mp_obj_base_t base;
uint8_t idx;
uint8_t fn;
uint8_t unit;
uint8_t type;
union {
void *reg;
TIM_TypeDef *TIM;
I2C_TypeDef *I2C;
USART_TypeDef *USART;
USART_TypeDef *UART;
SPI_TypeDef *SPI;
};
} pin_af_obj_t;
typedef struct {
mp_obj_base_t base;
const char *name;
uint16_t port : 4;
uint16_t pin : 4;
uint16_t num_af : 4;
uint16_t pin_mask;
GPIO_TypeDef *gpio;
const pin_af_obj_t *af;
} pin_obj_t;
extern const mp_obj_type_t pin_obj_type;
extern const mp_obj_type_t pin_af_obj_type;
typedef struct {
const char *name;
const pin_obj_t *pin;
} pin_named_pin_t;
extern const pin_named_pin_t pin_board_pins[];
extern const pin_named_pin_t pin_cpu_pins[];
typedef struct {
mp_obj_base_t base;
mp_obj_t mapper;
mp_obj_t map_dict;
bool debug;
} pin_map_obj_t;
extern pin_map_obj_t pin_map_obj;
typedef struct {
mp_obj_base_t base;
const char *name;
const pin_named_pin_t *named_pins;
} pin_named_pins_obj_t;
extern const pin_named_pins_obj_t pin_board_pins_obj;
extern const pin_named_pins_obj_t pin_cpu_pins_obj;
const pin_obj_t *pin_find_named_pin(const pin_named_pin_t *pins, const char *name);
const pin_af_obj_t *pin_find_af(const pin_obj_t *pin, uint8_t fn, uint8_t unit, uint8_t pin_type);
void pin_map_init(void);
// C function for mapping python pin identifier into an ordinal pin number.
const pin_obj_t *pin_map_user_obj(mp_obj_t user_obj);
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