Keyboard: Helix serial.c, split_scom.c bug fix and update (#4191)
* helix/serial.c add support PD1,PD3,PE6 and configuration simplify * Add comment about ATmega32U4 I2C * Add compile time check for ATmega32U4 I2C * change TAB code to 8 SPACE code * Helix serial.c PORTD,PD0 test. OK OK PD0 - PD1 OK PD2 - PD3 - PE6 * Helix serial.c PORTD,PD1 test. OK OK PD0 OK PD1 OK PD2 - PD3 - PE6 * Helix serial.c PORTD,PD3 test. OK OK PD0 OK PD1 OK PD2 OK PD3 - PE6 * Helix serial.c PORTE,PD6 test. OK OK PD0 OK PD1 OK PD2 OK PD3 OK PE6 * Helix serial.c: PD0,PD1,PD3,PE6 all test end * Helix serial.c: rename SOFT_SERIAL_PORT to SOFT_SERIAL_PIN * Helix serial.c add debug code * Helix serial.c: add transaction ID range check * Helix serial.c debug code update * Helix serial.c debug code update * Helix serial.c: Strict checking of the value of tid. * adjust the delay of serial.c * Helix serial.c: remove debug code * remove EXTRAFLAGS += -DCONSOLE_ENABLE from five_rows/rules.mk tmk_core/common.mk has >ifeq ($(strip $(CONSOLE_ENABLE)), yes) > TMK_COMMON_DEFS += -DCONSOLE_ENABLE * Fix error handling in split_scomm.c * add some comment to serial.c * add some comment about SELECT_SOFT_SERIAL_SPEED
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					 8 changed files with 229 additions and 137 deletions
				
			
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			@ -1,16 +1,9 @@
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#ifndef SOFT_SERIAL_CONFIG_H
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#define SOFT_SERIAL_CONFIG_H
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//// #error rev2 serial config
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#ifndef SOFT_SERIAL_PIN
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/* Soft Serial defines */
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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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#define SERIAL_PIN_MASK _BV(PD2)
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#define SERIAL_PIN_INTERRUPT INT2_vect
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#define SOFT_SERIAL_PIN D2
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#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
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#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
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//// #error rev2 serial config
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#endif /* SOFT_SERIAL_CONFIG_H */
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#endif
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			@ -1,16 +1,9 @@
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#ifndef SOFT_SERIAL_CONFIG_H
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#define SOFT_SERIAL_CONFIG_H
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//// #error rev1/keymaps/OLED_sample serial config
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#ifndef SOFT_SERIAL_PIN
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/* Soft Serial defines */
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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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#define SERIAL_PIN_MASK _BV(PD2)
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#define SERIAL_PIN_INTERRUPT INT2_vect
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#define SOFT_SERIAL_PIN D2
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#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
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#define SERIAL_MASTER_BUFFER_LENGTH 0
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//// #error rev1/keymaps/OLED_sample serial config
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#endif /* SOFT_SERIAL_CONFIG_H */
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#endif
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			@ -1,16 +1,9 @@
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#ifndef SOFT_SERIAL_CONFIG_H
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#define SOFT_SERIAL_CONFIG_H
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/// #error rev1 serial config
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#ifndef SOFT_SERIAL_PIN
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/* Soft Serial defines */
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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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#define SERIAL_PIN_MASK _BV(PD0)
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#define SERIAL_PIN_INTERRUPT INT0_vect
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#define SOFT_SERIAL_PIN D0
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#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
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#define SERIAL_MASTER_BUFFER_LENGTH 0
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/// #error rev1 serial config
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#endif /* SOFT_SERIAL_CONFIG_H */
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#endif
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			@ -122,10 +122,6 @@ ifeq ($(strip $(Link_Time_Optimization)),yes)
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    EXTRAFLAGS += -flto -DUSE_Link_Time_Optimization
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endif
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ifeq ($(strip $(CONSOLE_ENABLE)),yes)
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    EXTRAFLAGS += -DCONSOLE_ENABLE
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endif
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# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
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SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
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			@ -1,15 +1,8 @@
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#ifndef SOFT_SERIAL_CONFIG_H
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#define SOFT_SERIAL_CONFIG_H
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/* Soft Serial defines */
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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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#define SERIAL_PIN_MASK _BV(PD2)
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#define SERIAL_PIN_INTERRUPT INT2_vect
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#define SERIAL_USE_MULTI_TRANSACTION
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//// #error rev2 serial config
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#endif /* SOFT_SERIAL_CONFIG_H */
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#ifndef SOFT_SERIAL_PIN
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/* Soft Serial defines */
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#define SOFT_SERIAL_PIN D2
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#define SERIAL_USE_MULTI_TRANSACTION
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#endif
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			@ -10,6 +10,9 @@
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#ifdef SERIAL_DEBUG_MODE
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#include <avr/io.h>
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#endif
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#ifdef CONSOLE_ENABLE
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  #include <print.h>
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#endif
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uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
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uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
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			@ -17,6 +20,7 @@ uint8_t volatile status_com = 0;
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uint8_t volatile status1 = 0;
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uint8_t slave_buffer_change_count = 0;
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uint8_t s_change_old = 0xff;
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uint8_t s_change_new = 0xff;
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SSTD_t transactions[] = {
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#define GET_SLAVE_STATUS 0
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			@ -41,12 +45,12 @@ SSTD_t transactions[] = {
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void serial_master_init(void)
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{
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    soft_serial_initiator_init(transactions);
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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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{
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    soft_serial_target_init(transactions);
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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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			@ -54,19 +58,37 @@ void serial_slave_init(void)
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// 2 => checksum error
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int serial_update_buffers(int master_update)
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{
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    int status;
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    int status, smatstatus;
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    static int need_retry = 0;
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    if( s_change_old != slave_buffer_change_count ) {
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	status = soft_serial_transaction(GET_SLAVE_BUFFER);
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	if( status == TRANSACTION_END )
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	    s_change_old = slave_buffer_change_count;
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    if( s_change_old != s_change_new ) {
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        smatstatus = soft_serial_transaction(GET_SLAVE_BUFFER);
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        if( smatstatus == TRANSACTION_END ) {
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            s_change_old = s_change_new;
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#ifdef CONSOLE_ENABLE
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            uprintf("slave matrix = %b %b %b %b %b\n",
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                    serial_slave_buffer[0], serial_slave_buffer[1],
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                    serial_slave_buffer[2], serial_slave_buffer[3],
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                    serial_slave_buffer[4] );
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#endif
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        }
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    } else {
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        // serial_slave_buffer dosen't change
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        smatstatus = TRANSACTION_END; // dummy status
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    }
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    if( !master_update && !need_retry)
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	status = soft_serial_transaction(GET_SLAVE_STATUS);
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    else
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	status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
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    need_retry = ( status == TRANSACTION_END ) ? 0 : 1;
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    return status;
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    if( !master_update && !need_retry) {
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        status = soft_serial_transaction(GET_SLAVE_STATUS);
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    } else {
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        status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
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    }
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    if( status == TRANSACTION_END ) {
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        s_change_new = slave_buffer_change_count;
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        need_retry = 0;
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    } else {
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        need_retry = 1;
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    }
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    return smatstatus;
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}
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#endif // SERIAL_USE_MULTI_TRANSACTION
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			@ -14,7 +14,56 @@
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#include "serial.h"
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//#include <pro_micro.h>
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#ifdef USE_SERIAL
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#ifdef SOFT_SERIAL_PIN
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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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  #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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#else
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 #error serial.c now support ATmega32U4 only
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#endif
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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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			@ -42,16 +91,20 @@ SSTD_t transactions[] = {
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};
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void serial_master_init(void)
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{ soft_serial_initiator_init(transactions); }
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{ soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); }
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void serial_slave_init(void)
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{ soft_serial_target_init(transactions); }
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{ soft_serial_target_init(transactions, TID_LIMIT(transactions)); }
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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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{ return soft_serial_transaction(); }
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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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#endif // Simple API (OLD API, compatible with let's split serial.c)
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			@ -59,39 +112,66 @@ int serial_update_buffers()
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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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// Serial pulse period in microseconds.
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#define TID_SEND_ADJUST 14
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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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#define SELECT_SERIAL_SPEED 1
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#if SELECT_SERIAL_SPEED == 0
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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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#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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#define TID_SEND_ADJUST 2
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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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  #define READ_WRITE_START_ADJUST 33 // cycles
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  #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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#elif SELECT_SERIAL_SPEED == 1
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  #define READ_WRITE_WIDTH_ADJUST 6 // cycles
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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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  #define READ_WRITE_START_ADJUST 30 // cycles
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  #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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#elif SELECT_SERIAL_SPEED == 2
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  #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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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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  #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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#elif SELECT_SERIAL_SPEED == 3
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  #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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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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  #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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#elif SELECT_SERIAL_SPEED == 4
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  #define READ_WRITE_WIDTH_ADJUST 7 // cycles
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#elif SELECT_SOFT_SERIAL_SPEED == 4
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  // Very Low speed
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  #define SERIAL_DELAY 50            // micro sec
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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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  #define READ_WRITE_WIDTH_ADJUST 3 // cycles
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		||||
  #define READ_WRITE_WIDTH_ADJUST 7 // cycles
 | 
			
		||||
#elif SELECT_SOFT_SERIAL_SPEED == 5
 | 
			
		||||
  // Ultra Low speed
 | 
			
		||||
  #define SERIAL_DELAY 48            // micro sec
 | 
			
		||||
  #define READ_WRITE_START_ADJUST 30 // cycles
 | 
			
		||||
  #define READ_WRITE_WIDTH_ADJUST 7 // cycles
 | 
			
		||||
#else
 | 
			
		||||
#error Illegal Serial Speed
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#error invalid SELECT_SOFT_SERIAL_SPEED value
 | 
			
		||||
#endif /* SELECT_SOFT_SERIAL_SPEED */
 | 
			
		||||
#endif /* SERIAL_DELAY */
 | 
			
		||||
 | 
			
		||||
#define SERIAL_DELAY_HALF1 (SERIAL_DELAY/2)
 | 
			
		||||
#define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY/2)
 | 
			
		||||
| 
						 | 
				
			
			@ -105,6 +185,7 @@ int serial_update_buffers()
 | 
			
		|||
#endif
 | 
			
		||||
 | 
			
		||||
static SSTD_t *Transaction_table = NULL;
 | 
			
		||||
static uint8_t Transaction_table_size = 0;
 | 
			
		||||
 | 
			
		||||
inline static
 | 
			
		||||
void serial_delay(void) {
 | 
			
		||||
| 
						 | 
				
			
			@ -152,30 +233,28 @@ void serial_high(void) {
 | 
			
		|||
  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void soft_serial_initiator_init(SSTD_t *sstd_table)
 | 
			
		||||
void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size)
 | 
			
		||||
{
 | 
			
		||||
    Transaction_table = sstd_table;
 | 
			
		||||
    Transaction_table_size = (uint8_t)sstd_table_size;
 | 
			
		||||
    serial_output();
 | 
			
		||||
    serial_high();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void soft_serial_target_init(SSTD_t *sstd_table)
 | 
			
		||||
void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size)
 | 
			
		||||
{
 | 
			
		||||
    Transaction_table = sstd_table;
 | 
			
		||||
    Transaction_table_size = (uint8_t)sstd_table_size;
 | 
			
		||||
    serial_input_with_pullup();
 | 
			
		||||
 | 
			
		||||
#if SERIAL_PIN_MASK == _BV(PD0)
 | 
			
		||||
    // Enable INT0
 | 
			
		||||
    EIMSK |= _BV(INT0);
 | 
			
		||||
    // Trigger on falling edge of INT0
 | 
			
		||||
    EICRA &= ~(_BV(ISC00) | _BV(ISC01));
 | 
			
		||||
#elif SERIAL_PIN_MASK == _BV(PD2)
 | 
			
		||||
    // Enable INT2
 | 
			
		||||
    EIMSK |= _BV(INT2);
 | 
			
		||||
    // Trigger on falling edge of INT2
 | 
			
		||||
    EICRA &= ~(_BV(ISC20) | _BV(ISC21));
 | 
			
		||||
    // Enable INT0-INT3,INT6
 | 
			
		||||
    EIMSK |= EIMSK_BIT;
 | 
			
		||||
#if SERIAL_PIN_MASK == _BV(PE6)
 | 
			
		||||
    // Trigger on falling edge of INT6
 | 
			
		||||
    EICRB &= EICRx_BIT;
 | 
			
		||||
#else
 | 
			
		||||
 #error unknown SERIAL_PIN_MASK value
 | 
			
		||||
    // Trigger on falling edge of INT0-INT3
 | 
			
		||||
    EICRA &= EICRx_BIT;
 | 
			
		||||
#endif
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -205,12 +284,12 @@ static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) {
 | 
			
		|||
    uint8_t byte, i, p, pb;
 | 
			
		||||
 | 
			
		||||
  _delay_sub_us(READ_WRITE_START_ADJUST);
 | 
			
		||||
  for( i = 0, byte = 0, p = 0; i < bit; i++ ) {
 | 
			
		||||
  for( i = 0, byte = 0, p = PARITY; i < bit; i++ ) {
 | 
			
		||||
      serial_delay_half1();   // read the middle of pulses
 | 
			
		||||
      if( serial_read_pin() ) {
 | 
			
		||||
	  byte = (byte << 1) | 1; p ^= 1;
 | 
			
		||||
          byte = (byte << 1) | 1; p ^= 1;
 | 
			
		||||
      } else {
 | 
			
		||||
	  byte = (byte << 1) | 0; p ^= 0;
 | 
			
		||||
          byte = (byte << 1) | 0; p ^= 0;
 | 
			
		||||
      }
 | 
			
		||||
      _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
 | 
			
		||||
      serial_delay_half2();
 | 
			
		||||
| 
						 | 
				
			
			@ -230,13 +309,13 @@ static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) {
 | 
			
		|||
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 = 0, b = 1<<(bit-1); b ; b >>= 1) {
 | 
			
		||||
	if(data & b) {
 | 
			
		||||
	    serial_high(); p ^= 1;
 | 
			
		||||
	} else {
 | 
			
		||||
	    serial_low();  p ^= 0;
 | 
			
		||||
	}
 | 
			
		||||
	serial_delay();
 | 
			
		||||
    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(); }
 | 
			
		||||
| 
						 | 
				
			
			@ -288,6 +367,13 @@ void change_reciver2sender(void) {
 | 
			
		|||
    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) {
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -297,12 +383,15 @@ ISR(SERIAL_PIN_INTERRUPT) {
 | 
			
		|||
  SSTD_t *trans = Transaction_table;
 | 
			
		||||
#else
 | 
			
		||||
  // recive transaction table index
 | 
			
		||||
  uint8_t tid;
 | 
			
		||||
  uint8_t tid, bits;
 | 
			
		||||
  uint8_t pecount = 0;
 | 
			
		||||
  sync_recv();
 | 
			
		||||
  tid = serial_read_chunk(&pecount,4);
 | 
			
		||||
  if(pecount> 0)
 | 
			
		||||
  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
 | 
			
		||||
| 
						 | 
				
			
			@ -315,17 +404,17 @@ ISR(SERIAL_PIN_INTERRUPT) {
 | 
			
		|||
  // target send phase
 | 
			
		||||
  if( trans->target2initiator_buffer_size > 0 )
 | 
			
		||||
      serial_send_packet((uint8_t *)trans->target2initiator_buffer,
 | 
			
		||||
			 trans->target2initiator_buffer_size);
 | 
			
		||||
                         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;
 | 
			
		||||
                               trans->initiator2target_buffer_size) ) {
 | 
			
		||||
          *trans->status = TRANSACTION_ACCEPTED;
 | 
			
		||||
      } else {
 | 
			
		||||
	  *trans->status = TRANSACTION_DATA_ERROR;
 | 
			
		||||
          *trans->status = TRANSACTION_DATA_ERROR;
 | 
			
		||||
      }
 | 
			
		||||
  } else {
 | 
			
		||||
      *trans->status = TRANSACTION_ACCEPTED;
 | 
			
		||||
| 
						 | 
				
			
			@ -349,6 +438,8 @@ 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();
 | 
			
		||||
| 
						 | 
				
			
			@ -375,9 +466,10 @@ int  soft_serial_transaction(int sstd_index) {
 | 
			
		|||
 | 
			
		||||
#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(sstd_index, 4);
 | 
			
		||||
  serial_write_chunk(tid, 7);
 | 
			
		||||
  serial_delay_half1();
 | 
			
		||||
 | 
			
		||||
  // wait for the target response (step1 low->high)
 | 
			
		||||
| 
						 | 
				
			
			@ -389,12 +481,12 @@ int  soft_serial_transaction(int sstd_index) {
 | 
			
		|||
  // 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;
 | 
			
		||||
          // 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);
 | 
			
		||||
  }
 | 
			
		||||
| 
						 | 
				
			
			@ -404,12 +496,12 @@ int  soft_serial_transaction(int sstd_index) {
 | 
			
		|||
  // 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;
 | 
			
		||||
                                trans->target2initiator_buffer_size) ) {
 | 
			
		||||
          serial_output();
 | 
			
		||||
          serial_high();
 | 
			
		||||
          *trans->status = TRANSACTION_DATA_ERROR;
 | 
			
		||||
          sei();
 | 
			
		||||
          return TRANSACTION_DATA_ERROR;
 | 
			
		||||
      }
 | 
			
		||||
   }
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -419,7 +511,7 @@ int  soft_serial_transaction(int sstd_index) {
 | 
			
		|||
  // initiator send phase
 | 
			
		||||
  if( trans->initiator2target_buffer_size > 0 ) {
 | 
			
		||||
      serial_send_packet((uint8_t *)trans->initiator2target_buffer,
 | 
			
		||||
			 trans->initiator2target_buffer_size);
 | 
			
		||||
                         trans->initiator2target_buffer_size);
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  // always, release the line when not in use
 | 
			
		||||
| 
						 | 
				
			
			@ -442,3 +534,9 @@ int soft_serial_get_and_clean_status(int sstd_index) {
 | 
			
		|||
#endif
 | 
			
		||||
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
// Helix serial.c history
 | 
			
		||||
//   2018-1-29 fork from let's split (#2308)
 | 
			
		||||
//   2018-6-28 bug fix master to slave comm (#3255)
 | 
			
		||||
//   2018-8-11 improvements (#3608)
 | 
			
		||||
//   2018-10-21 fix serial and RGB animation conflict (#4191)
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -4,14 +4,16 @@
 | 
			
		|||
#include <stdbool.h>
 | 
			
		||||
 | 
			
		||||
// /////////////////////////////////////////////////////////////////
 | 
			
		||||
// Need Soft Serial defines in serial_config.h
 | 
			
		||||
// Need Soft Serial defines in config.h
 | 
			
		||||
// /////////////////////////////////////////////////////////////////
 | 
			
		||||
// ex.
 | 
			
		||||
//  #define SERIAL_PIN_DDR DDRD
 | 
			
		||||
//  #define SERIAL_PIN_PORT PORTD
 | 
			
		||||
//  #define SERIAL_PIN_INPUT PIND
 | 
			
		||||
//  #define SERIAL_PIN_MASK _BV(PD?)   ?=0,2
 | 
			
		||||
//  #define SERIAL_PIN_INTERRUPT INT?_vect  ?=0,2
 | 
			
		||||
//  #define SOFT_SERIAL_PIN ??   // ?? = D0,D1,D2,D3,E6
 | 
			
		||||
//  OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5
 | 
			
		||||
//                                               //  1: about 137kbps (default)
 | 
			
		||||
//                                               //  2: about 75kbps
 | 
			
		||||
//                                               //  3: about 39kbps
 | 
			
		||||
//                                               //  4: about 26kbps
 | 
			
		||||
//                                               //  5: about 20kbps
 | 
			
		||||
//
 | 
			
		||||
// //// USE Simple API (OLD API, compatible with let's split serial.c)
 | 
			
		||||
// ex.
 | 
			
		||||
| 
						 | 
				
			
			@ -47,16 +49,18 @@ typedef struct _SSTD_t  {
 | 
			
		|||
    uint8_t target2initiator_buffer_size;
 | 
			
		||||
    uint8_t *target2initiator_buffer;
 | 
			
		||||
} SSTD_t;
 | 
			
		||||
#define TID_LIMIT( table ) (sizeof(table) / sizeof(SSTD_t))
 | 
			
		||||
 | 
			
		||||
// initiator is transaction start side
 | 
			
		||||
void soft_serial_initiator_init(SSTD_t *sstd_table);
 | 
			
		||||
void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size);
 | 
			
		||||
// target is interrupt accept side
 | 
			
		||||
void soft_serial_target_init(SSTD_t *sstd_table);
 | 
			
		||||
void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size);
 | 
			
		||||
 | 
			
		||||
// initiator resullt
 | 
			
		||||
#define TRANSACTION_END 0
 | 
			
		||||
#define TRANSACTION_NO_RESPONSE 0x1
 | 
			
		||||
#define TRANSACTION_DATA_ERROR  0x2
 | 
			
		||||
#define TRANSACTION_TYPE_ERROR  0x4
 | 
			
		||||
#ifndef SERIAL_USE_MULTI_TRANSACTION
 | 
			
		||||
int  soft_serial_transaction(void);
 | 
			
		||||
#else
 | 
			
		||||
| 
						 | 
				
			
			@ -72,7 +76,7 @@ int  soft_serial_transaction(int sstd_index);
 | 
			
		|||
//   target:
 | 
			
		||||
//       TRANSACTION_DATA_ERROR
 | 
			
		||||
//    or TRANSACTION_ACCEPTED
 | 
			
		||||
#define TRANSACTION_ACCEPTED 0x4
 | 
			
		||||
#define TRANSACTION_ACCEPTED 0x8
 | 
			
		||||
#ifdef SERIAL_USE_MULTI_TRANSACTION
 | 
			
		||||
int  soft_serial_get_and_clean_status(int sstd_index);
 | 
			
		||||
#endif
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
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