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@@ -1,589 +0,0 @@
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-/*
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- * WARNING: be careful changing this code, it is very timing dependent
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- *
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- * 2018-10-28 checked
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- * avr-gcc 4.9.2
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- * avr-gcc 5.4.0
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- * avr-gcc 7.3.0
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- */
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-
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-#ifndef F_CPU
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-#define F_CPU 16000000
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-#endif
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-
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-#include <avr/io.h>
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-#include <avr/interrupt.h>
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-#include <util/delay.h>
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-#include <stddef.h>
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-#include <stdbool.h>
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-#include "serial.h"
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-
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-#ifdef SOFT_SERIAL_PIN
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-
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-#ifdef __AVR_ATmega32U4__
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- // if using ATmega32U4 I2C, can not use PD0 and PD1 in soft serial.
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- #ifdef USE_I2C
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- #if SOFT_SERIAL_PIN == D0 || SOFT_SERIAL_PIN == D1
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- #error Using ATmega32U4 I2C, so can not use PD0, PD1
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- #endif
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- #endif
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-
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- #if SOFT_SERIAL_PIN >= D0 && SOFT_SERIAL_PIN <= D3
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- #define SERIAL_PIN_DDR DDRD
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- #define SERIAL_PIN_PORT PORTD
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- #define SERIAL_PIN_INPUT PIND
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- #if SOFT_SERIAL_PIN == D0
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- #define SERIAL_PIN_MASK _BV(PD0)
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- #define EIMSK_BIT _BV(INT0)
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- #define EICRx_BIT (~(_BV(ISC00) | _BV(ISC01)))
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- #define SERIAL_PIN_INTERRUPT INT0_vect
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- #elif SOFT_SERIAL_PIN == D1
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- #define SERIAL_PIN_MASK _BV(PD1)
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- #define EIMSK_BIT _BV(INT1)
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- #define EICRx_BIT (~(_BV(ISC10) | _BV(ISC11)))
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- #define SERIAL_PIN_INTERRUPT INT1_vect
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- #elif SOFT_SERIAL_PIN == D2
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- #define SERIAL_PIN_MASK _BV(PD2)
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- #define EIMSK_BIT _BV(INT2)
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- #define EICRx_BIT (~(_BV(ISC20) | _BV(ISC21)))
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- #define SERIAL_PIN_INTERRUPT INT2_vect
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- #elif SOFT_SERIAL_PIN == D3
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- #define SERIAL_PIN_MASK _BV(PD3)
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- #define EIMSK_BIT _BV(INT3)
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- #define EICRx_BIT (~(_BV(ISC30) | _BV(ISC31)))
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- #define SERIAL_PIN_INTERRUPT INT3_vect
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- #endif
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- #elif SOFT_SERIAL_PIN == E6
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- #define SERIAL_PIN_DDR DDRE
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- #define SERIAL_PIN_PORT PORTE
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- #define SERIAL_PIN_INPUT PINE
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- #define SERIAL_PIN_MASK _BV(PE6)
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- #define EIMSK_BIT _BV(INT6)
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- #define EICRx_BIT (~(_BV(ISC60) | _BV(ISC61)))
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- #define SERIAL_PIN_INTERRUPT INT6_vect
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- #else
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- #error invalid SOFT_SERIAL_PIN value
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- #endif
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-
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-#else
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- #error serial.c now support ATmega32U4 only
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-#endif
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-
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-//////////////// for backward compatibility ////////////////////////////////
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-#ifndef SERIAL_USE_MULTI_TRANSACTION
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-/* --- USE Simple API (OLD API, compatible with let's split serial.c) */
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- #if SERIAL_SLAVE_BUFFER_LENGTH > 0
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- uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
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- #endif
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- #if SERIAL_MASTER_BUFFER_LENGTH > 0
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- uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
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- #endif
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- uint8_t volatile status0 = 0;
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-
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-SSTD_t transactions[] = {
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- { (uint8_t *)&status0,
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- #if SERIAL_MASTER_BUFFER_LENGTH > 0
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- sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
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- #else
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- 0, (uint8_t *)NULL,
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- #endif
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- #if SERIAL_SLAVE_BUFFER_LENGTH > 0
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- sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
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- #else
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- 0, (uint8_t *)NULL,
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- #endif
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- }
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-};
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-
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-void serial_master_init(void)
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-{ soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); }
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-
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-void serial_slave_init(void)
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-{ soft_serial_target_init(transactions, TID_LIMIT(transactions)); }
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-
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-// 0 => no error
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-// 1 => slave did not respond
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-// 2 => checksum error
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-int serial_update_buffers()
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-{
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- int result;
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- result = soft_serial_transaction();
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- return result;
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-}
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-
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-#endif // end of Simple API (OLD API, compatible with let's split serial.c)
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-////////////////////////////////////////////////////////////////////////////
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-
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-#define ALWAYS_INLINE __attribute__((always_inline))
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-#define NO_INLINE __attribute__((noinline))
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-#define _delay_sub_us(x) __builtin_avr_delay_cycles(x)
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-
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-// parity check
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-#define ODD_PARITY 1
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-#define EVEN_PARITY 0
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-#define PARITY EVEN_PARITY
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-
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-#ifdef SERIAL_DELAY
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- // custom setup in config.h
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- // #define TID_SEND_ADJUST 2
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- // #define SERIAL_DELAY 6 // micro sec
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- // #define READ_WRITE_START_ADJUST 30 // cycles
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- // #define READ_WRITE_WIDTH_ADJUST 8 // cycles
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-#else
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-// ============ Standard setups ============
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-
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-#ifndef SELECT_SOFT_SERIAL_SPEED
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-#define SELECT_SOFT_SERIAL_SPEED 1
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-// 0: about 189kbps
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-// 1: about 137kbps (default)
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-// 2: about 75kbps
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-// 3: about 39kbps
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-// 4: about 26kbps
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-// 5: about 20kbps
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-#endif
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-
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-#if __GNUC__ < 6
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- #define TID_SEND_ADJUST 14
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-#else
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- #define TID_SEND_ADJUST 2
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-#endif
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-
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-#if SELECT_SOFT_SERIAL_SPEED == 0
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- // Very High speed
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- #define SERIAL_DELAY 4 // micro sec
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- #if __GNUC__ < 6
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- #define READ_WRITE_START_ADJUST 33 // cycles
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- #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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- #else
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- #define READ_WRITE_START_ADJUST 34 // cycles
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- #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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- #endif
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-#elif SELECT_SOFT_SERIAL_SPEED == 1
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- // High speed
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- #define SERIAL_DELAY 6 // micro sec
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- #if __GNUC__ < 6
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- #define READ_WRITE_START_ADJUST 30 // cycles
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- #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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- #else
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- #define READ_WRITE_START_ADJUST 33 // cycles
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- #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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- #endif
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-#elif SELECT_SOFT_SERIAL_SPEED == 2
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- // Middle speed
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- #define SERIAL_DELAY 12 // micro sec
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- #define READ_WRITE_START_ADJUST 30 // cycles
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- #if __GNUC__ < 6
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- #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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- #else
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- #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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- #endif
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-#elif SELECT_SOFT_SERIAL_SPEED == 3
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- // Low speed
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- #define SERIAL_DELAY 24 // micro sec
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- #define READ_WRITE_START_ADJUST 30 // cycles
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- #if __GNUC__ < 6
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- #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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- #else
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- #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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- #endif
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-#elif SELECT_SOFT_SERIAL_SPEED == 4
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- // Very Low speed
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- #define SERIAL_DELAY 36 // micro sec
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- #define READ_WRITE_START_ADJUST 30 // cycles
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- #if __GNUC__ < 6
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- #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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- #else
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- #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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- #endif
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-#elif SELECT_SOFT_SERIAL_SPEED == 5
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- // Ultra Low speed
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- #define SERIAL_DELAY 48 // micro sec
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- #define READ_WRITE_START_ADJUST 30 // cycles
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- #if __GNUC__ < 6
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- #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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- #else
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- #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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- #endif
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-#else
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-#error invalid SELECT_SOFT_SERIAL_SPEED value
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-#endif /* SELECT_SOFT_SERIAL_SPEED */
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-#endif /* SERIAL_DELAY */
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-
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-#define SERIAL_DELAY_HALF1 (SERIAL_DELAY/2)
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-#define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY/2)
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-
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-#define SLAVE_INT_WIDTH_US 1
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-#ifndef SERIAL_USE_MULTI_TRANSACTION
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- #define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
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-#else
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- #define SLAVE_INT_ACK_WIDTH_UNIT 2
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- #define SLAVE_INT_ACK_WIDTH 4
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-#endif
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-
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-static SSTD_t *Transaction_table = NULL;
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-static uint8_t Transaction_table_size = 0;
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-
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-inline static void serial_delay(void) ALWAYS_INLINE;
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-inline static
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-void serial_delay(void) {
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- _delay_us(SERIAL_DELAY);
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-}
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-
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-inline static void serial_delay_half1(void) ALWAYS_INLINE;
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-inline static
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-void serial_delay_half1(void) {
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- _delay_us(SERIAL_DELAY_HALF1);
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-}
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-
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-inline static void serial_delay_half2(void) ALWAYS_INLINE;
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-inline static
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-void serial_delay_half2(void) {
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- _delay_us(SERIAL_DELAY_HALF2);
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-}
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-
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-inline static void serial_output(void) ALWAYS_INLINE;
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-inline static
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-void serial_output(void) {
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- SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
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-}
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-
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-// make the serial pin an input with pull-up resistor
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-inline static void serial_input_with_pullup(void) ALWAYS_INLINE;
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-inline static
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-void serial_input_with_pullup(void) {
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- SERIAL_PIN_DDR &= ~SERIAL_PIN_MASK;
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- SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
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-}
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-
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-inline static uint8_t serial_read_pin(void) ALWAYS_INLINE;
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-inline static
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-uint8_t serial_read_pin(void) {
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- return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
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-}
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-
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-inline static void serial_low(void) ALWAYS_INLINE;
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-inline static
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-void serial_low(void) {
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- SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
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-}
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-
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-inline static void serial_high(void) ALWAYS_INLINE;
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-inline static
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-void serial_high(void) {
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- SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
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-}
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-
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-void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size)
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-{
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- Transaction_table = sstd_table;
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- Transaction_table_size = (uint8_t)sstd_table_size;
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- serial_output();
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- serial_high();
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-}
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-
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-void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size)
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-{
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- Transaction_table = sstd_table;
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- Transaction_table_size = (uint8_t)sstd_table_size;
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- serial_input_with_pullup();
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-
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- // Enable INT0-INT3,INT6
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- EIMSK |= EIMSK_BIT;
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-#if SERIAL_PIN_MASK == _BV(PE6)
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- // Trigger on falling edge of INT6
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- EICRB &= EICRx_BIT;
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-#else
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- // Trigger on falling edge of INT0-INT3
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- EICRA &= EICRx_BIT;
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-#endif
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-}
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-
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-// Used by the sender to synchronize timing with the reciver.
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-static void sync_recv(void) NO_INLINE;
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-static
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-void sync_recv(void) {
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- for (uint8_t i = 0; i < SERIAL_DELAY*5 && serial_read_pin(); i++ ) {
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- }
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- // This shouldn't hang if the target disconnects because the
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- // serial line will float to high if the target does disconnect.
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- while (!serial_read_pin());
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-}
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-
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-// Used by the reciver to send a synchronization signal to the sender.
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-static void sync_send(void) NO_INLINE;
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-static
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-void sync_send(void) {
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- serial_low();
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- serial_delay();
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- serial_high();
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-}
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-
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-// Reads a byte from the serial line
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-static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) NO_INLINE;
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-static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) {
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- uint8_t byte, i, p, pb;
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-
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- _delay_sub_us(READ_WRITE_START_ADJUST);
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- for( i = 0, byte = 0, p = PARITY; i < bit; i++ ) {
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- serial_delay_half1(); // read the middle of pulses
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- if( serial_read_pin() ) {
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- byte = (byte << 1) | 1; p ^= 1;
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- } else {
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- byte = (byte << 1) | 0; p ^= 0;
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- }
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- _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
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- serial_delay_half2();
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- }
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- /* recive parity bit */
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- serial_delay_half1(); // read the middle of pulses
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- pb = serial_read_pin();
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- _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
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- serial_delay_half2();
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-
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- *pterrcount += (p != pb)? 1 : 0;
|
|
|
|
-
|
|
|
|
- return byte;
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-// Sends a byte with MSB ordering
|
|
|
|
-void serial_write_chunk(uint8_t data, uint8_t bit) NO_INLINE;
|
|
|
|
-void serial_write_chunk(uint8_t data, uint8_t bit) {
|
|
|
|
- uint8_t b, p;
|
|
|
|
- for( p = PARITY, b = 1<<(bit-1); b ; b >>= 1) {
|
|
|
|
- if(data & b) {
|
|
|
|
- serial_high(); p ^= 1;
|
|
|
|
- } else {
|
|
|
|
- serial_low(); p ^= 0;
|
|
|
|
- }
|
|
|
|
- serial_delay();
|
|
|
|
- }
|
|
|
|
- /* send parity bit */
|
|
|
|
- if(p & 1) { serial_high(); }
|
|
|
|
- else { serial_low(); }
|
|
|
|
- serial_delay();
|
|
|
|
-
|
|
|
|
- serial_low(); // sync_send() / senc_recv() need raise edge
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-static void serial_send_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
|
|
|
|
-static
|
|
|
|
-void serial_send_packet(uint8_t *buffer, uint8_t size) {
|
|
|
|
- for (uint8_t i = 0; i < size; ++i) {
|
|
|
|
- uint8_t data;
|
|
|
|
- data = buffer[i];
|
|
|
|
- sync_send();
|
|
|
|
- serial_write_chunk(data,8);
|
|
|
|
- }
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-static uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
|
|
|
|
-static
|
|
|
|
-uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) {
|
|
|
|
- uint8_t pecount = 0;
|
|
|
|
- for (uint8_t i = 0; i < size; ++i) {
|
|
|
|
- uint8_t data;
|
|
|
|
- sync_recv();
|
|
|
|
- data = serial_read_chunk(&pecount, 8);
|
|
|
|
- buffer[i] = data;
|
|
|
|
- }
|
|
|
|
- return pecount == 0;
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-inline static
|
|
|
|
-void change_sender2reciver(void) {
|
|
|
|
- sync_send(); //0
|
|
|
|
- serial_delay_half1(); //1
|
|
|
|
- serial_low(); //2
|
|
|
|
- serial_input_with_pullup(); //2
|
|
|
|
- serial_delay_half1(); //3
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-inline static
|
|
|
|
-void change_reciver2sender(void) {
|
|
|
|
- sync_recv(); //0
|
|
|
|
- serial_delay(); //1
|
|
|
|
- serial_low(); //3
|
|
|
|
- serial_output(); //3
|
|
|
|
- serial_delay_half1(); //4
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-static inline uint8_t nibble_bits_count(uint8_t bits)
|
|
|
|
-{
|
|
|
|
- bits = (bits & 0x5) + (bits >> 1 & 0x5);
|
|
|
|
- bits = (bits & 0x3) + (bits >> 2 & 0x3);
|
|
|
|
- return bits;
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-// interrupt handle to be used by the target device
|
|
|
|
-ISR(SERIAL_PIN_INTERRUPT) {
|
|
|
|
-
|
|
|
|
-#ifndef SERIAL_USE_MULTI_TRANSACTION
|
|
|
|
- serial_low();
|
|
|
|
- serial_output();
|
|
|
|
- SSTD_t *trans = Transaction_table;
|
|
|
|
-#else
|
|
|
|
- // recive transaction table index
|
|
|
|
- uint8_t tid, bits;
|
|
|
|
- uint8_t pecount = 0;
|
|
|
|
- sync_recv();
|
|
|
|
- bits = serial_read_chunk(&pecount,7);
|
|
|
|
- tid = bits>>3;
|
|
|
|
- bits = (bits&7) != nibble_bits_count(tid);
|
|
|
|
- if( bits || pecount> 0 || tid > Transaction_table_size ) {
|
|
|
|
- return;
|
|
|
|
- }
|
|
|
|
- serial_delay_half1();
|
|
|
|
-
|
|
|
|
- serial_high(); // response step1 low->high
|
|
|
|
- serial_output();
|
|
|
|
- _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT*SLAVE_INT_ACK_WIDTH);
|
|
|
|
- SSTD_t *trans = &Transaction_table[tid];
|
|
|
|
- serial_low(); // response step2 ack high->low
|
|
|
|
-#endif
|
|
|
|
-
|
|
|
|
- // target send phase
|
|
|
|
- if( trans->target2initiator_buffer_size > 0 )
|
|
|
|
- serial_send_packet((uint8_t *)trans->target2initiator_buffer,
|
|
|
|
- trans->target2initiator_buffer_size);
|
|
|
|
- // target switch to input
|
|
|
|
- change_sender2reciver();
|
|
|
|
-
|
|
|
|
- // target recive phase
|
|
|
|
- if( trans->initiator2target_buffer_size > 0 ) {
|
|
|
|
- if (serial_recive_packet((uint8_t *)trans->initiator2target_buffer,
|
|
|
|
- trans->initiator2target_buffer_size) ) {
|
|
|
|
- *trans->status = TRANSACTION_ACCEPTED;
|
|
|
|
- } else {
|
|
|
|
- *trans->status = TRANSACTION_DATA_ERROR;
|
|
|
|
- }
|
|
|
|
- } else {
|
|
|
|
- *trans->status = TRANSACTION_ACCEPTED;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- sync_recv(); //weit initiator output to high
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-/////////
|
|
|
|
-// start transaction by initiator
|
|
|
|
-//
|
|
|
|
-// int soft_serial_transaction(int sstd_index)
|
|
|
|
-//
|
|
|
|
-// Returns:
|
|
|
|
-// TRANSACTION_END
|
|
|
|
-// TRANSACTION_NO_RESPONSE
|
|
|
|
-// TRANSACTION_DATA_ERROR
|
|
|
|
-// this code is very time dependent, so we need to disable interrupts
|
|
|
|
-#ifndef SERIAL_USE_MULTI_TRANSACTION
|
|
|
|
-int soft_serial_transaction(void) {
|
|
|
|
- SSTD_t *trans = Transaction_table;
|
|
|
|
-#else
|
|
|
|
-int soft_serial_transaction(int sstd_index) {
|
|
|
|
- if( sstd_index > Transaction_table_size )
|
|
|
|
- return TRANSACTION_TYPE_ERROR;
|
|
|
|
- SSTD_t *trans = &Transaction_table[sstd_index];
|
|
|
|
-#endif
|
|
|
|
- cli();
|
|
|
|
-
|
|
|
|
- // signal to the target that we want to start a transaction
|
|
|
|
- serial_output();
|
|
|
|
- serial_low();
|
|
|
|
- _delay_us(SLAVE_INT_WIDTH_US);
|
|
|
|
-
|
|
|
|
-#ifndef SERIAL_USE_MULTI_TRANSACTION
|
|
|
|
- // wait for the target response
|
|
|
|
- serial_input_with_pullup();
|
|
|
|
- _delay_us(SLAVE_INT_RESPONSE_TIME);
|
|
|
|
-
|
|
|
|
- // check if the target is present
|
|
|
|
- if (serial_read_pin()) {
|
|
|
|
- // target failed to pull the line low, assume not present
|
|
|
|
- serial_output();
|
|
|
|
- serial_high();
|
|
|
|
- *trans->status = TRANSACTION_NO_RESPONSE;
|
|
|
|
- sei();
|
|
|
|
- return TRANSACTION_NO_RESPONSE;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
-#else
|
|
|
|
- // send transaction table index
|
|
|
|
- int tid = (sstd_index<<3) | (7 & nibble_bits_count(sstd_index));
|
|
|
|
- sync_send();
|
|
|
|
- _delay_sub_us(TID_SEND_ADJUST);
|
|
|
|
- serial_write_chunk(tid, 7);
|
|
|
|
- serial_delay_half1();
|
|
|
|
-
|
|
|
|
- // wait for the target response (step1 low->high)
|
|
|
|
- serial_input_with_pullup();
|
|
|
|
- while( !serial_read_pin() ) {
|
|
|
|
- _delay_sub_us(2);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- // check if the target is present (step2 high->low)
|
|
|
|
- for( int i = 0; serial_read_pin(); i++ ) {
|
|
|
|
- if (i > SLAVE_INT_ACK_WIDTH + 1) {
|
|
|
|
- // slave failed to pull the line low, assume not present
|
|
|
|
- serial_output();
|
|
|
|
- serial_high();
|
|
|
|
- *trans->status = TRANSACTION_NO_RESPONSE;
|
|
|
|
- sei();
|
|
|
|
- return TRANSACTION_NO_RESPONSE;
|
|
|
|
- }
|
|
|
|
- _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT);
|
|
|
|
- }
|
|
|
|
-#endif
|
|
|
|
-
|
|
|
|
- // initiator recive phase
|
|
|
|
- // if the target is present syncronize with it
|
|
|
|
- if( trans->target2initiator_buffer_size > 0 ) {
|
|
|
|
- if (!serial_recive_packet((uint8_t *)trans->target2initiator_buffer,
|
|
|
|
- trans->target2initiator_buffer_size) ) {
|
|
|
|
- serial_output();
|
|
|
|
- serial_high();
|
|
|
|
- *trans->status = TRANSACTION_DATA_ERROR;
|
|
|
|
- sei();
|
|
|
|
- return TRANSACTION_DATA_ERROR;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- // initiator switch to output
|
|
|
|
- change_reciver2sender();
|
|
|
|
-
|
|
|
|
- // initiator send phase
|
|
|
|
- if( trans->initiator2target_buffer_size > 0 ) {
|
|
|
|
- serial_send_packet((uint8_t *)trans->initiator2target_buffer,
|
|
|
|
- trans->initiator2target_buffer_size);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- // always, release the line when not in use
|
|
|
|
- sync_send();
|
|
|
|
-
|
|
|
|
- *trans->status = TRANSACTION_END;
|
|
|
|
- sei();
|
|
|
|
- return TRANSACTION_END;
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-#ifdef SERIAL_USE_MULTI_TRANSACTION
|
|
|
|
-int soft_serial_get_and_clean_status(int sstd_index) {
|
|
|
|
- SSTD_t *trans = &Transaction_table[sstd_index];
|
|
|
|
- cli();
|
|
|
|
- int retval = *trans->status;
|
|
|
|
- *trans->status = 0;;
|
|
|
|
- sei();
|
|
|
|
- return retval;
|
|
|
|
-}
|
|
|
|
-#endif
|
|
|
|
-
|
|
|
|
-#endif
|
|
|
|
-
|
|
|
|
-// Helix serial.c history
|
|
|
|
-// 2018-1-29 fork from let's split and add PD2, modify sync_recv() (#2308, bceffdefc)
|
|
|
|
-// 2018-6-28 bug fix master to slave comm and speed up (#3255, 1038bbef4)
|
|
|
|
-// (adjusted with avr-gcc 4.9.2)
|
|
|
|
-// 2018-7-13 remove USE_SERIAL_PD2 macro (#3374, f30d6dd78)
|
|
|
|
-// (adjusted with avr-gcc 4.9.2)
|
|
|
|
-// 2018-8-11 add support multi-type transaction (#3608, feb5e4aae)
|
|
|
|
-// (adjusted with avr-gcc 4.9.2)
|
|
|
|
-// 2018-10-21 fix serial and RGB animation conflict (#4191, 4665e4fff)
|
|
|
|
-// (adjusted with avr-gcc 7.3.0)
|
|
|
|
-// 2018-10-28 re-adjust compiler depend value of delay (#4269, 8517f8a66)
|
|
|
|
-// (adjusted with avr-gcc 5.4.0, 7.3.0)
|
|
|