gavrasm Gerd's AVR assembler version 5.4 (C)2022 by DG4FAC
----------------------------------------------------------

Path:        /home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny2313a_thermostat/
Source file: firmware.asm
Hex file:    firmware.hex
Eeprom file: firmware.eep
Compiled:    20.04.2023, 00:25:25
Pass:        2

     1: ;
     2: ; Project name: thermostat
     3: ; Description: Electronic thermostat on AVR Microcontroller
     4: ; Source code: https://github.com/sergeyyarkov/attiny2313a_thermostat
     5: ; Device: ATtiny2313A
     6: ; Device Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/doc8246.pdf
     7: ; Package: SOIC-20W_7.5x12.8mm_P1.27mm
     8: ; Assembler: AVR macro assembler 2.2.7
     9: ; Clock frequency: 8 MHz External Crystal Oscillator
    10: ; Fuses: lfuse: 0xCF, hfuse: 0x9F, efuse: 0xFF, lock: 0xFF
    11: ;
    12: ; Written by Sergey Yarkov 22.01.2023
    13: 
    14: .INCLUDE "tn2313Adef.inc"
 -> Warning 009: Include defs not necessary, using internal values!
   File: /home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny2313a_thermostat/firmware.asm, Line: 14
   Source line: .INCLUDE "tn2313Adef.inc"
    15: .LIST
    16: 
    17: .DEF TEMP_REG_A       = r16
    18: .DEF TEMP_REG_B       = r17
    19: 
    20: .EQU DIGIT_1_PIN              = PD2
    21: .EQU DIGIT_2_PIN              = PD3
    22: .EQU DIGIT_3_PIN              = PD4
    23: .EQU DIGIT_4_PIN              = PD5
    24: 
    25: .EQU LED_POWER_PIN            = PD6
    26: 
    27: .EQU USI_LATCH_PIN            = PB0         ; ST_CP on 74HC595
    28: .EQU USI_DO_PIN               = PB6         ; DS on 74HC595
    29: .EQU USI_CLK_PIN              = PB7         ; SH_CP on 74HC595
    30: 
    31: .EQU MCU_STATE_DEFAULT        = 0x01        ; Режим измерения температуры и сравнения с заданными параметрами
    32: .EQU MCU_STATE_PROGRAM        = 0x02        ; Режим настройки параметров в EEPROM
    33: .EQU MCU_STATE_ERROR          = 0x03        ; Режим ошибки, например когда не подключен датчик
    34: 
    35: ; **** СЕГМЕНТ ДАННЫХ ********************************************
    36: .DSEG
    37: .ORG SRAM_START
    38: 
    39: MCU_STATE:      .BYTE 1                     ; Текущее состояние МК
    40: NUMBER:         .BYTE 2
    41: DIGITS:         .BYTE 4                     ; Ячейки, где хранятся символы, для вывода на индикатор
    42: CURRENT_DIGIT:  .BYTE 1                     ; Номер разряда индикатора, который сейчас горит
    43: 
    44: ; **** СЕГМЕНТ КОДА **********************************************
    45: .CSEG
    46: 
    47: .ORG 0x00     
    48: 000000   C040  rjmp 	RESET_vect
    49: 
    50: .ORG 0x000D   
    51: 00000D   C000  rjmp  TIMER0_COMPA_vect
    52: 
    53: ; **** ДИНАМИЧЕСКАЯ ИНДИКАЦИЯ ************************************
    54: TIMER0_COMPA_vect:
    55: 00000E   9140  lds       r20,  CURRENT_DIGIT
        00000F   0067
    56: 000010   3045  cpi       r20,  5
    57: 000011   F40C  brge      reset_digit_idx
    58: 000012   C003  rjmp      _indicate_1
    59: 
    60:   reset_digit_idx:
    61: 000013   2744  clr     r20
    62: 000014   9340  sts     CURRENT_DIGIT, r20
        000015   0067
    63: 
    64:     _indicate_1:
    65: 000016   3040  cpi       r20, 0
    66: 000017   F439  brne      _indicate_2
    67: 
    68: 000018   EF0B  ldi       r16, ~(1<<DIGIT_1_PIN)
    69: 000019   7102  andi      r16,  PORTD
    70: 00001A   BB02  out       PORTD, r16
    71: 00001B   9100  lds       TEMP_REG_A, DIGITS+3
        00001C   0066
    72: 00001D   D075  rcall     DISPLAY_DECODER
    73: 00001E   D04C  rcall     USI_TRANSMIT
    74: 
    75:     _indicate_2:
    76: 00001F   3041  cpi       r20, 1
    77: 000020   F441  brne      _indicate_3
    78: 
    79: 000021   9892  cbi       PORTD, DIGIT_1_PIN
    80: 000022   9894  cbi       PORTD, DIGIT_3_PIN
    81: 000023   9895  cbi       PORTD, DIGIT_4_PIN
    82: 000024   9A93  sbi       PORTD, DIGIT_2_PIN
    83: 000025   9100  lds       TEMP_REG_A, DIGITS+2
        000026   0065
    84: 000027   D06B  rcall     DISPLAY_DECODER
    85: 000028   D042  rcall     USI_TRANSMIT
    86: 
    87:     _indicate_3:
    88: 000029   3042  cpi       r20, 2
    89: 00002A   F441  brne      _indicate_4
    90: 
    91: 00002B   9892  cbi       PORTD, DIGIT_1_PIN
    92: 00002C   9893  cbi       PORTD, DIGIT_2_PIN
    93: 00002D   9895  cbi       PORTD, DIGIT_4_PIN
    94: 00002E   9A94  sbi       PORTD, DIGIT_3_PIN
    95: 00002F   9100  lds       TEMP_REG_A, DIGITS+1
        000030   0064
    96: 000031   D061  rcall     DISPLAY_DECODER
    97: 000032   D038  rcall     USI_TRANSMIT
    98: 
    99:     _indicate_4:
   100: 000033   3043  cpi       r20, 3
   101: 000034   F441  brne      _indicate_exit
   102: 
   103: 000035   9892  cbi       PORTD, DIGIT_1_PIN
   104: 000036   9893  cbi       PORTD, DIGIT_2_PIN
   105: 000037   9894  cbi       PORTD, DIGIT_3_PIN
   106: 000038   9A95  sbi       PORTD, DIGIT_4_PIN
   107: 000039   9100  lds       TEMP_REG_A, DIGITS
        00003A   0063
   108: 00003B   D057  rcall     DISPLAY_DECODER
   109: 00003C   D02E  rcall     USI_TRANSMIT
   110: 
   111:     _indicate_exit:
   112: 00003D   9543  inc       r20
   113: 00003E   9340  sts       CURRENT_DIGIT, r20
        00003F   0067
   114: 000040   9518  reti
   115: 
   116: RESET_vect:
   117: 000041   ED0F  ldi       TEMP_REG_A, LOW(RAMEND)
   118: 000042   BF0D  out       SPL, TEMP_REG_A
   119: 
   120: MCU_INIT:
   121:   ; **** ИНИЦИАЛИЗАЦИЯ ПОРТОВ ************************************
   122: 000043   E70C  ldi       r16, (1<<LED_POWER_PIN) | (1<<DIGIT_1_PIN) | (1<<DIGIT_2_PIN) | (1<<DIGIT_3_PIN) | (1<<DIGIT_4_PIN)
   123: 000044   BB01  out       DDRD, r16
   124: 000045   EC05  ldi       r16, (1<<USI_CLK_PIN) | (1<<USI_DO_PIN) | (1<<USI_LATCH_PIN) | (1<<PB2)
   125: 000046   BB07  out       DDRB, r16
   126:   
   127:   ; **** ИНИЦИАЛИЗАЦИЯ ТАЙМЕРОВ **********************************
   128: 000047   E402  ldi       r16, (1<<COM0A0) | (1<<WGM01)
   129: 000048   BF00  out       TCCR0A, r16
   130: 
   131: 000049   E005  ldi       r16,  (1<<CS02) | (1<<CS00)
   132: 00004A   BF03  out       TCCR0B, r16
   133: 
   134: 00004B   E208  ldi       r16, 40
   135: 00004C   BF06  out       OCR0A, r16
   136: 
   137: 00004D   E001  ldi       r16, (1<<OCIE0A)
   138: 00004E   BF09  out       TIMSK, r16
   139: 
   140: 00004F   2411  clr       r1
   141: 000050   E6E2  ldi	      ZL,LOW(2*DISPLAY_SYMBOLS)
   142: 000051   E0F1  ldi	      ZH,HIGH(2*DISPLAY_SYMBOLS)
   143: 
   144:   ; загружаем число, которое нужно показать на индикатор
   145:   .EQU DISPLAY_NUMBER = 279
   146: 000052   E167  ldi   r22,    LOW(DISPLAY_NUMBER)
   147: 000053   E071  ldi   r23,    HIGH(DISPLAY_NUMBER)
   148: 
   149: 000054   9210  sts   CURRENT_DIGIT, r1
        000055   0067
   150: 
   151: 000056   9478  sei
   152: 
   153: 000057   C01D  rjmp      LOOP
   154: 
   155: ; **** ПОДПРОГРАММЫ **********************************************
   156: .INCLUDE "div16u.asm"
  Including file div16u.asm

     1: ;***************************************************************************
     2: ;*
     3: ;* "div16u" - 16/16 Bit Unsigned Division
     4: ;*
     5: ;* This subroutine divides the two 16-bit numbers 
     6: ;* "dd8uH:dd8uL" (dividend) and "dv16uH:dv16uL" (divisor). 
     7: ;* The result is placed in "dres16uH:dres16uL" and the remainder in
     8: ;* "drem16uH:drem16uL".
     9: ;*  
    10: ;* Number of words	:19
    11: ;* Number of cycles	:235/251 (Min/Max)
    12: ;* Low registers used	:2 (drem16uL,drem16uH)
    13: ;* High registers used  :5 (dres16uL/dd16uL,dres16uH/dd16uH,dv16uL,dv16uH,
    14: ;*			    dcnt16u)
    15: ;*
    16: ;***************************************************************************
    17: 
    18: ;***** Subroutine Register Variables
    19: 
    20: .def	drem16uL=r14
    21: .def	drem16uH=r15
    22: .def	dres16uL=r16
    23: .def	dres16uH=r17
    24: .def	dd16uL	=r16
    25: .def	dd16uH	=r17
    26: .def	dv16uL	=r18
    27: .def	dv16uH	=r19
    28: .def	dcnt16u	=r20
    29: 
    30: ;***** Code
    31: 
    32: 000058   24EE  clr	drem16uL	;clear remainder Low byte
    33: 000059   18FF  sub	drem16uH,drem16uH;clear remainder High byte and carry
    34: 00005A   E141  ldi	dcnt16u,17	;init loop counter
    35: 00005B   1F00  rol	dd16uL		;shift left dividend
    36: 00005C   1F11  rol	dd16uH
    37: 00005D   954A  dec	dcnt16u		;decrement counter
    38: 00005E   F409  brne	d16u_2		;if done
    39: 00005F   9508  ret			;    return
    40: 000060   1CEE  rol	drem16uL	;shift dividend into remainder
    41: 000061   1CFF  rol	drem16uH
    42: 000062   1AE2  sub	drem16uL,dv16uL	;remainder = remainder - divisor
    43: 000063   0AF3  sbc	drem16uH,dv16uH	;
    44: 000064   F420  brcc	d16u_3		;if result negative
    45: 000065   0EE2  add	drem16uL,dv16uL	;    restore remainder
    46: 000066   1EF3  adc	drem16uH,dv16uH
    47: 000067   9488  clc			;    clear carry to be shifted into result
    48: 000068   CFF2  rjmp	d16u_1		;else
    49: 000069   9408  sec			;    set carry to be shifted into result
    50: 00006A   CFF0  rjmp	d16u_1
  Continuing file firmware.asm
   157: .INCLUDE "usi.asm"
  Including file usi.asm

     1: ; **** ОТПРАВКА БАЙТА В СДВИГОВЫЙ РЕГИСТР *************************
     2: USI_TRANSMIT:
     3: 00006B   B80F  out       USIDR, r0            ; Move byte from temp register to USI Data Register
     4: 
     5:   ; Enable USI Overflow Interrupt Flag (will be 0 if transfer is not compeleted)
     6: 00006C   E400  ldi       TEMP_REG_A, (1<<USIOIF)      
     7: 00006D   B90E  out       USISR, TEMP_REG_A
     8:   
     9:   ; Load settings of USI into temp register
    10:   ; This will setup USI to Three-wire mode, Software clock strobe (USITC) 
    11:   ; with External, positive edge and toggle USCK
    12:   ;
    13:   ; USIWM0 <--------------> USI Wire Mode
    14:   ; USICS1 <--------------> USI Clock Source Select
    15:   ; USICLK <--------------> USI Clock Strobe
    16:   ; USITC  <--------------> USI Toggle Clock (Enable clock generation)      
    17: 00006E   E10B  ldi       TEMP_REG_A, (1<<USIWM0) | (1<<USICS1) | (1<<USICLK) | (1<<USITC)
    18:   
    19:   _USI_TRANSMIT_LOOP:             ; Execute loop when USIOIF is 0
    20: 00006F   B90D  out       USICR, TEMP_REG_A   ; Load settings from temp register into USI Control Register
    21: 000070   9B76  sbis      USISR, USIOIF       ; If transfer is comleted then move out of loop
    22: 000071   CFFD  rjmp      _USI_TRANSMIT_LOOP
    23: 
    24:   ; Send pulse into LATCH pin. 
    25:   ; This will copy byte from 74hc595 shift register into 74hc595 storage register
    26: 000072   9AC0  sbi      PORTB, USI_LATCH_PIN
    27: 000073   98C0  cbi      PORTB, USI_LATCH_PIN
    28: 000074   9508  ret
  Continuing file firmware.asm
   158: 
   159: ; **** ГЛАВНЫЙ ЦИКЛ **********************************************
   160: LOOP:  
   161:   ; **** ПОЛУЧЕНИЕ ЦИФР ИЗ 16-ТИ БИТНОГО ЧИСЛА *******************
   162:   ; Описание: Перемещает цифры числа в соответствующие ячейки памяти в SRAM
   163:   ;           путем деления этого числа несколько раз
   164:   GET_DIGITS:
   165: 000075   94F8  cli
   166: 000076   E084  ldi   r24,    4                     ; максимум 4 цифры, т.к индикатор четырех разрядный
   167: 000077   E6A3  ldi   XL, LOW(DIGITS)
   168: 000078   E0B0  ldi   XH, HIGH(DIGITS)
   169: 
   170:     .equ  dividend_addr = $0060
   171:     .equ  divisor       = 10
   172: 
   173:     ; загружаем делимое в адрес SRAM делимого
   174: 000079   9360  sts   dividend_addr,     r22
        00007A   0060
   175: 00007B   9370  sts   dividend_addr+1,   r23
        00007C   0061
   176: 
   177:     ; четыре раза производим деление для получения остатков
   178:     DIV_LOOP:
   179:       ; заполняем нужные регистры
   180: 00007D   9100  lds   dd16uL, dividend_addr
        00007E   0060
   181: 00007F   9110  lds   dd16uH, dividend_addr+1
        000080   0061
   182: 000081   E02A  ldi   dv16uL, LOW(divisor)
   183: 000082   E030  ldi   dv16uH, HIGH(divisor)
   184:       
   185: 000083   DFD4  rcall div16u                      ; делим
   186: 
   187: 000084   92ED  st   X+,    drem16uL              ; сохраняем остаток в ячейку по указателю
   188: 
   189:       ; обновляем делимое
   190: 000085   9300  sts  dividend_addr, dres16uL
        000086   0060
   191: 000087   9310  sts  dividend_addr+1, dres16uH
        000088   0061
   192: 
   193: 000089   958A  dec   r24                         ; декрементируем счетчик цикла
   194: 00008A   F791  brne  DIV_LOOP                    ; делим еще раз если не 0
   195: 00008B   9478  sei
   196: 
   197: 00008C   D01B  rcall       TOGGLE_POWER_LED
   198: 00008D   D00C  rcall       DELAY
   199: 00008E   D00B  rcall       DELAY
   200: 00008F   D00A  rcall       DELAY
   201: 000090   D009  rcall       DELAY
   202: 000091   D008  rcall       DELAY
   203: 
   204: 000092   CFE2  rjmp      LOOP
   205: 
   206: DISPLAY_DECODER:
   207: 000093   E6E2  ldi	      ZL, LOW(2*DISPLAY_SYMBOLS)
   208: 000094   E0F1  ldi	      ZH, HIGH(2*DISPLAY_SYMBOLS)
   209: 
   210: 000095   E010  ldi       TEMP_REG_B, 0
   211: 000096   0FE0  add       ZL, TEMP_REG_A
   212: 000097   1FF1  adc       ZH, TEMP_REG_B
   213: 
   214: 000098   95C8  lpm
   215: 000099   9508  ret
   216: 
   217: DELAY:
   218: 00009A   930F  push      r16
   219: 00009B   931F  push      r17
   220: 00009C   EF0F  ldi       r16, 255
   221:   _DELAY_1:
   222: 00009D   EF1F  ldi     r17, 255   
   223:   _DELAY_2:
   224: 00009E   951A  dec     r17         
   225: 00009F   0000  nop                 
   226: 0000A0   0000  nop                
   227: 0000A1   0000  nop                 
   228: 0000A2   F7D9  brne    _DELAY_2    
   229: 
   230: 0000A3   950A  dec     r16
   231: 0000A4   F7C1  brne    _DELAY_1    
   232: 
   233: 0000A5   911F  pop       r17
   234: 0000A6   910F  pop       r16
   235: 0000A7   9508  ret                    
   236: 
   237: TOGGLE_POWER_LED:
   238: 0000A8   930F  push      r16
   239: 0000A9   931F  push      r17
   240: 0000AA   E400  ldi       r16,   (1<<LED_POWER_PIN)
   241: 0000AB   B312  in        r17,   PORTD
   242: 0000AC   2710  eor       r17,   r16
   243: 0000AD   BB12  out       PORTD, r17
   244: 0000AE   911F  pop       r17
   245: 0000AF   910F  pop       r16
   246: 0000B0   9508  ret
   247: 
   248: DISPLAY_SYMBOLS:
   249:       ; HGFEDCBA    HGFEDCBA
   250:   .DB 0b11000000, 0b11111001          ; 0, 1
        0000B1 F9C0
   251:   .DB 0b10100100, 0b10110000          ; 2, 3
        0000B2 B0A4
   252:   .DB 0b10011001, 0b10010010          ; 4, 5
        0000B3 9299
   253:   .DB 0b10000010, 0b11111000          ; 6, 7
        0000B4 F882
   254:   .DB 0b10000000, 0b10010000          ; 8, 9
        0000B5 9080
   255: 
   256: ; **** СЕГМЕНТ EEPROM ********************************************
   257: ; .ESEG
   258: ; INFO:       .DB "AVR Thermostat. Written by Sergey Yarkov 22.01.2023"

List of symbols:
Type nDef nUsed             Decimalval           Hexval Name
  T     1     1                     89               59 ATTINY2313A
  L     1     0                     96               60 MCU_STATE
  L     1     0                     97               61 NUMBER
  L     1     6                     99               63 DIGITS
  L     1     4                    103               67 CURRENT_DIGIT
  L     1     2                     14               0E TIMER0_COMPA_VECT
  L     1     2                     19               13 RESET_DIGIT_IDX
  L     1     2                     22               16 _INDICATE_1
  L     1     2                     31               1F _INDICATE_2
  L     1     2                     41               29 _INDICATE_3
  L     1     2                     51               33 _INDICATE_4
  L     1     2                     61               3D _INDICATE_EXIT
  L     1     2                     65               41 RESET_VECT
  L     1     0                     67               43 MCU_INIT
  L     1     2                     88               58 DIV16U
  L     1     4                     91               5B D16U_1
  L     1     2                     96               60 D16U_2
  L     1     2                    105               69 D16U_3
  L     1     8                    107               6B USI_TRANSMIT
  L     1     2                    111               6F _USI_TRANSMIT_LOOP
  L     1     4                    117               75 LOOP
  L     1     0                    117               75 GET_DIGITS
  L     1     2                    125               7D DIV_LOOP
  L     1     8                    147               93 DISPLAY_DECODER
  L     1    10                    154               9A DELAY
  L     1     2                    157               9D _DELAY_1
  L     1     2                    158               9E _DELAY_2
  L     1     2                    168               A8 TOGGLE_POWER_LED
  L     1     4                    177               B1 DISPLAY_SYMBOLS
  R     1    11                     16               10 TEMP_REG_A
  R     1     2                     17               11 TEMP_REG_B
  R     1     5                     14               0E DREM16UL
  R     1     5                     15               0F DREM16UH
  R     1     1                     16               10 DRES16UL
  R     1     1                     17               11 DRES16UH
  R     1     2                     16               10 DD16UL
  R     1     2                     17               11 DD16UH
  R     1     3                     18               12 DV16UL
  R     1     3                     19               13 DV16UH
  R     1     2                     20               14 DCNT16U
  C     1     0                     23               17 NOW_Y
  C     1     0                      4               04 NOW_M
  C     1     0                     20               14 NOW_D
  C     1     0                  45036             AFEC NOW_I
  C     1     5                      2               02 DIGIT_1_PIN
  C     1     4                      3               03 DIGIT_2_PIN
  C     1     4                      4               04 DIGIT_3_PIN
  C     1     4                      5               05 DIGIT_4_PIN
  C     1     2                      6               06 LED_POWER_PIN
  C     1     3                      0               00 USI_LATCH_PIN
  C     1     1                      6               06 USI_DO_PIN
  C     1     1                      7               07 USI_CLK_PIN
  C     1     0                      1               01 MCU_STATE_DEFAULT
  C     1     0                      2               02 MCU_STATE_PROGRAM
  C     1     0                      3               03 MCU_STATE_ERROR
  C     1     2                    279             0117 DISPLAY_NUMBER
  C     1     6                     96               60 DIVIDEND_ADDR
  C     1     2                     10               0A DIVISOR
   No macros.

Program             :      165 words.
Constants           :        5 words.
Total program memory:      170 words.
Eeprom space        :        0 bytes.
Data segment        :        8 bytes.
Compilation completed, no errors.
Compilation ended 20.04.2023, 00:25:25