|
-
-
- #ifndef HardwareSerial_h
- #define HardwareSerial_h
-
- #include "imxrt.h"
-
- #ifdef __cplusplus
- #include "Stream.h"
- #include "core_pins.h"
-
- #ifdef SERIAL_9BIT_SUPPORT
- #define BUFTYPE uint16_t
- #else
- #define BUFTYPE uint8_t
- #endif
-
- extern "C" {
- extern void IRQHandler_Serial1();
- extern void IRQHandler_Serial2();
- extern void IRQHandler_Serial3();
- extern void IRQHandler_Serial4();
- extern void IRQHandler_Serial5();
- extern void IRQHandler_Serial6();
- extern void IRQHandler_Serial7();
- extern void IRQHandler_Serial8();
- }
-
- class HardwareSerial : public Stream
- {
- public:
- typedef struct {
- IRQ_NUMBER_t irq;
- void (*irq_handler)(void);
- volatile uint32_t &ccm_register;
- const uint32_t ccm_value;
- const uint8_t rx_pin;
- const uint8_t tx_pin;
-
-
- volatile uint32_t &rx_select_input_register;
- const uint8_t rx_mux_val;
- const uint8_t tx_mux_val;
- const uint8_t rx_select_val;
- } hardware_t;
- public:
- constexpr HardwareSerial(IMXRT_LPUART_t *myport, const hardware_t *myhardware,
- volatile BUFTYPE *_tx_buffer, size_t _tx_buffer_size,
- volatile BUFTYPE *_rx_buffer, size_t _rx_buffer_size) :
- port(myport), hardware(myhardware),
- tx_buffer_(_tx_buffer), rx_buffer_(_rx_buffer), tx_buffer_size_(_tx_buffer_size), rx_buffer_size_(_rx_buffer_size),
- tx_buffer_total_size_(_tx_buffer_size), rx_buffer_total_size_(_rx_buffer_size) {
- }
- void begin(uint32_t baud, uint8_t format=0);
- void end(void);
-
- virtual int available(void);
- virtual int peek(void);
- virtual void flush(void);
- virtual size_t write(uint8_t c);
- virtual int read(void);
-
- void transmitterEnable(uint8_t pin);
- void setRX(uint8_t pin);
- void setTX(uint8_t pin, bool opendrain=false);
- bool attachRts(uint8_t pin);
- bool attachCts(uint8_t pin);
- void clear(void);
- int availableForWrite(void);
- size_t write9bit(uint32_t c);
-
- using Print::write;
-
-
-
-
-
- operator bool() { return true; }
- private:
- IMXRT_LPUART_t * const port;
- const hardware_t * const hardware;
-
- volatile BUFTYPE *tx_buffer_;
- volatile BUFTYPE *rx_buffer_;
- volatile BUFTYPE *rx_buffer_storage_ = nullptr;
- volatile BUFTYPE *tx_buffer_storage_ = nullptr;
- size_t tx_buffer_size_;
- size_t rx_buffer_size_;
- size_t tx_buffer_total_size_;
- size_t rx_buffer_total_size_;
- volatile uint8_t transmitting_ = 0;
- volatile uint16_t tx_buffer_head_ = 0;
- volatile uint16_t tx_buffer_tail_ = 0;
- volatile uint16_t rx_buffer_head_ = 0;
- volatile uint16_t rx_buffer_tail_ = 0;
-
-
- int transmit_pin_=-1;
- int rts_pin_=-1;
-
- inline void transmit_assert() {digitalWrite(transmit_pin_, 1);}
- inline void transmit_deassert() {digitalWrite(transmit_pin_, 0);}
- inline void rts_assert() {digitalWrite(rts_pin_ , 0); }
- inline void rts_deassert() {digitalWrite(rts_pin_ , 1); }
-
- void IRQHandler();
- friend void IRQHandler_Serial1();
- friend void IRQHandler_Serial2();
- friend void IRQHandler_Serial3();
- friend void IRQHandler_Serial4();
- friend void IRQHandler_Serial5();
- friend void IRQHandler_Serial6();
- friend void IRQHandler_Serial7();
- friend void IRQHandler_Serial8();
-
-
- };
- extern HardwareSerial Serial1;
- extern HardwareSerial Serial2;
- extern HardwareSerial Serial3;
- extern HardwareSerial Serial4;
- extern HardwareSerial Serial5;
- extern HardwareSerial Serial6;
- extern HardwareSerial Serial7;
- extern HardwareSerial Serial8;
-
-
-
- #endif
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- #define SERIAL_7E1 0x02
- #define SERIAL_7O1 0x03
- #define SERIAL_8N1 0x00
- #define SERIAL_8E1 0x06
- #define SERIAL_8O1 0x07
- #define SERIAL_7E1_RXINV 0x12
- #define SERIAL_7O1_RXINV 0x13
- #define SERIAL_8N1_RXINV 0x10
- #define SERIAL_8E1_RXINV 0x16
- #define SERIAL_8O1_RXINV 0x17
- #define SERIAL_7E1_TXINV 0x22
- #define SERIAL_7O1_TXINV 0x23
- #define SERIAL_8N1_TXINV 0x20
- #define SERIAL_8E1_TXINV 0x26
- #define SERIAL_8O1_TXINV 0x27
- #define SERIAL_7E1_RXINV_TXINV 0x32
- #define SERIAL_7O1_RXINV_TXINV 0x33
- #define SERIAL_8N1_RXINV_TXINV 0x30
- #define SERIAL_8E1_RXINV_TXINV 0x36
- #define SERIAL_8O1_RXINV_TXINV 0x37
- #ifdef SERIAL_9BIT_SUPPORT
- #define SERIAL_9N1 0x84
- #define SERIAL_9E1 0x8E
- #define SERIAL_9O1 0x8F
- #define SERIAL_9N1_RXINV 0x94
- #define SERIAL_9E1_RXINV 0x9E
- #define SERIAL_9O1_RXINV 0x9F
- #define SERIAL_9N1_TXINV 0xA4
- #define SERIAL_9E1_TXINV 0xAE
- #define SERIAL_9O1_TXINV 0xAF
- #define SERIAL_9N1_RXINV_TXINV 0xB4
- #define SERIAL_9E1_RXINV_TXINV 0xBE
- #define SERIAL_9O1_RXINV_TXINV 0xBF
- #endif
-
- #if defined(__MK64FX512__) || defined(__MK66FX1M0__) || defined(KINETISL)
- #define SERIAL_2STOP_BITS 0x100
- #define SERIAL_8E2 (SERIAL_8E1 | SERIAL_2STOP_BITS)
- #define SERIAL_8O2 (SERIAL_8O1 | SERIAL_2STOP_BITS)
- #define SERIAL_8E2_RXINV (SERIAL_8E1_RXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8O2_RXINV (SERIAL_8O1_RXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8E2_TXINV (SERIAL_8E1_TXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8O2_TXINV (SERIAL_8O1_TXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8E2_RXINV_TXINV (SERIAL_8E1_RXINV_TXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8O2_RXINV_TXINV (SERIAL_8O1_RXINV_TXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8N2 (SERIAL_8N1 | SERIAL_2STOP_BITS)
- #define SERIAL_8N2_RXINV (SERIAL_8N1_RXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8N2_TXINV (SERIAL_8N1_TXINV | SERIAL_2STOP_BITS)
- #define SERIAL_8N2_RXINV_TXINV (SERIAL_8N1_RXINV_TXINV | SERIAL_2STOP_BITS)
- #else
-
- #define SERIAL_8N2 0x04
- #define SERIAL_8N2_RXINV 0x14
- #define SERIAL_8N2_TXINV 0x24
- #define SERIAL_8N2_RXINV_TXINV 0x34
- #endif
-
-
-
-
-
-
-
-
-
-
-
- #define BAUD2DIV(baud) (24000000/16/(baud))
-
-
-
- #endif
|