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DPS1200-FB-pic_16F886_firmware.asm
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DPS1200-FB-pic_16F886_firmware.asm
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; Input MD5 : 6B7FE6F27F47FA15D223807C6B59CCD9
; Input CRC32 : 8748B8D2
; Processor : PIC16Cxx
; Target assembler: Microchip's MPALC
;NOTE THE CPU IS ACTUALLY A 16F886 - MINOR DIFFERENCES IN REGISTERS (E.G. ADC)
include "P16F877A.INC"
; ===========================================================================
; Segment type: Pure code
; .text (CODE)
; assume bank = 0
; assume pclath = 0
; [00000001 BYTES: COLLAPSED FUNCTION RESET. PRESS KEYPAD CTRL-"+" TO EXPAND]
; ---------------------------------------------------------------------------
addlw 0FF
addlw 0FF
addlw 0FF
; =============== S U B R O U T I N E =======================================
; Interrupt Vector
; public ISR
ISR:
; FUNCTION CHUNK AT 01BE SIZE 0000020A BYTES
; FUNCTION CHUNK AT 03CF SIZE 00000044 BYTES
; FUNCTION CHUNK AT 0432 SIZE 00000212 BYTES
movwf irq_store_w
movfw BANK0:STATUS
movwf irq_store_status
clrf BANK0:STATUS
movfw BANK0:PCLATH
movwf irq_store_pclath
bcf BANK0:PCLATH, 3
bcf BANK0:PCLATH, 4
btfsc BANK0:PIR1, SSPIF
b I2C_IRQ_Handler
btfsc BANK0:INTCON, TMR0IF
b Timer0_IRQ_Handler ; this is a few khz I believe
bcf BANK0:INTCON, GIE
bcf BANK0:STATUS, RP0
bcf BANK0:STATUS, RP1
movfw irq_store_pclath
movwf BANK0:PCLATH
movfw irq_store_status
movwf BANK0:STATUS
swapf irq_store_w, f
swapf irq_store_w, w
retfie
; End of function ISR
; ---------------------------------------------------------------------------
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
; =============== S U B R O U T I N E =======================================
lookup_ram_to_read_for_cmd: ; CODE XREF: ISR+1F4p ISR+24Cp
addwf BANK0:PCL, f
retlw 79 ; 'y' ; cmd0 read
; End of function lookup_ram_to_read_for_cmd
; ---------------------------------------------------------------------------
retlw 0D6 ; 'Ö'
; ---------------------------------------------------------------------------
retlw 0B0 ; '°' ; returns some flags
; ---------------------------------------------------------------------------
retlw 0B1 ; '±'
; ---------------------------------------------------------------------------
retlw 0B2 ; '²' ; more readable flags
; ---------------------------------------------------------------------------
retlw 0B3 ; '³'
; ---------------------------------------------------------------------------
retlw 0B4 ; '´' ; status flags incl temperature flags
; ---------------------------------------------------------------------------
retlw 0B5 ; 'µ'
; ---------------------------------------------------------------------------
retlw 0B6 ; '¶' ; input voltage
; ---------------------------------------------------------------------------
retlw 0B7 ; '·'
; ---------------------------------------------------------------------------
retlw 0B8 ; '¸' ; amps in
; ---------------------------------------------------------------------------
retlw 0B9 ; '¹'
; ---------------------------------------------------------------------------
retlw 0D7 ; '×' ; watts in
; ---------------------------------------------------------------------------
retlw 0D8 ; 'Ø'
; ---------------------------------------------------------------------------
retlw 0BA ; 'º' ; output voltage
; ---------------------------------------------------------------------------
retlw 0BB ; '»'
; ---------------------------------------------------------------------------
retlw 0BC ; '¼' ; (0x10=cmd8) possibly output current
; ---------------------------------------------------------------------------
retlw 0BD ; '½'
; ---------------------------------------------------------------------------
retlw 0D9 ; 'Ù' ; output watts
; ---------------------------------------------------------------------------
retlw 0DA ; 'Ú'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0BE ; '¾' ; think this is input air temperature
; ---------------------------------------------------------------------------
retlw 0BF ; '¿'
; ---------------------------------------------------------------------------
retlw 0C0 ; 'À' ; this is some (higher) internal temperature
; ---------------------------------------------------------------------------
retlw 0C1 ; 'Á'
; ---------------------------------------------------------------------------
retlw 0C2 ; 'Â' ; fan speed (rpm?)
; ---------------------------------------------------------------------------
retlw 0C3 ; 'Ã'
; ---------------------------------------------------------------------------
retlw 79 ; 'y' ; 20
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0DB ; 'Û' ; total watts in (4 bytes)
; ---------------------------------------------------------------------------
retlw 0DC ; 'Ü'
; ---------------------------------------------------------------------------
retlw 0DD ; 'Ý'
; ---------------------------------------------------------------------------
retlw 0DE ; 'Þ'
; ---------------------------------------------------------------------------
retlw 0DF ; 'ß' ; 30 : some simple up-counter (perhaps secs)
; ---------------------------------------------------------------------------
retlw 0E0 ; 'à'
; ---------------------------------------------------------------------------
retlw 0E1 ; 'á' ; MaxWattsIn
; ---------------------------------------------------------------------------
retlw 0E2 ; 'â'
; ---------------------------------------------------------------------------
retlw 0C4 ; 'Ä' ; Min recorded input current(?)
; ---------------------------------------------------------------------------
retlw 0C5 ; 'Å'
; ---------------------------------------------------------------------------
retlw 0C6 ; 'Æ' ; Max recorded output current
; ---------------------------------------------------------------------------
retlw 0C7 ; 'Ç'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0C8 ; 'È' ; bitflags ; bits 3,4,5,6 do something
; ---------------------------------------------------------------------------
retlw 0C9 ; 'É'
; ---------------------------------------------------------------------------
retlw 0CD ; 'Í' ; written by cmd 3d
; ---------------------------------------------------------------------------
retlw 0E4 ; 'ä'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0E5 ; 'å' ; 40 fan related lsb
; ---------------------------------------------------------------------------
retlw 0D4 ; 'Ô' ; fan related msb
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0E6 ; 'æ'
; ---------------------------------------------------------------------------
retlw 0E7 ; 'ç'
; ---------------------------------------------------------------------------
retlw 0E8 ; 'è'
; ---------------------------------------------------------------------------
retlw 0E9 ; 'é'
; ---------------------------------------------------------------------------
retlw 0EA ; 'ê' ; some value
; ---------------------------------------------------------------------------
retlw 0EB ; 'ë'
; ---------------------------------------------------------------------------
retlw 0EC ; 'ì' ; related to above - peak value?
; ---------------------------------------------------------------------------
retlw 0ED ; 'í'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0EE ; 'î' ; 50
; ---------------------------------------------------------------------------
retlw 0EF ; 'ï'
; ---------------------------------------------------------------------------
retlw 0A5 ; '¥'
; ---------------------------------------------------------------------------
retlw 0A6 ; '¦'
; ---------------------------------------------------------------------------
retlw 0A7 ; '§'
; ---------------------------------------------------------------------------
retlw 0A8 ; '¨'
; ---------------------------------------------------------------------------
retlw 0A9 ; '©'
; ---------------------------------------------------------------------------
retlw 0AA ; 'ª'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; assume bank = 1
; =============== S U B R O U T I N E =======================================
sub_CODE_7B: ; CODE XREF: RESET_0+10Ap
addwf BANK1:PCL, f
retlw 56 ; 'V'
; End of function sub_CODE_7B
; ---------------------------------------------------------------------------
retlw 68 ; 'h'
; ---------------------------------------------------------------------------
retlw 80 ; ''
; ---------------------------------------------------------------------------
retlw 0A5 ; '¥'
; ---------------------------------------------------------------------------
retlw 0A5 ; '¥'
; =============== S U B R O U T I N E =======================================
sub_CODE_81: ; CODE XREF: RESET_0+134p
addwf BANK1:PCL, f
retlw 70 ; 'p'
; End of function sub_CODE_81
; ---------------------------------------------------------------------------
retlw 70 ; 'p'
; ---------------------------------------------------------------------------
retlw 7D ; '}'
; ---------------------------------------------------------------------------
retlw 7D ; '}'
; ---------------------------------------------------------------------------
retlw 0A7 ; '§'
; ---------------------------------------------------------------------------
retlw 0A7 ; '§'
; =============== S U B R O U T I N E =======================================
sub_CODE_88: ; CODE XREF: RESET_0+11Dp
addwf BANK1:PCL, f
retlw 85 ; '
'
; End of function sub_CODE_88
; ---------------------------------------------------------------------------
retlw 85 ; '
'
; ---------------------------------------------------------------------------
retlw 95 ; ''
; ---------------------------------------------------------------------------
retlw 95 ; ''
; ---------------------------------------------------------------------------
retlw 0CF ; 'Ï'
; ---------------------------------------------------------------------------
retlw 0CF ; 'Ï'
; assume bank = 0
; =============== S U B R O U T I N E =======================================
lookup_ram_to_write_for_cmd: ; CODE XREF: ISR+299p ISR+2A8p
addwf BANK0:PCL, f
retlw 79 ; 'y' ; 0
; End of function lookup_ram_to_write_for_cmd
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y' ; 0x10
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y' ; 0x20
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y' ; 0x30
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0E5 ; 'å' ; 0x40 - these two are fan related
; ---------------------------------------------------------------------------
retlw 0D4 ; 'Ô'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 0EE ; 'î' ; 0x50 - this defaults to 3200 and is settable
; ---------------------------------------------------------------------------
retlw 0EF ; 'ï'
; ---------------------------------------------------------------------------
retlw 0A5 ; '¥' ; this defaults to 0x1260
; ---------------------------------------------------------------------------
retlw 0A6 ; '¦'
; ---------------------------------------------------------------------------
retlw 0A7 ; '§' ; used by eeprom logging as some kind of tag (default 0)
; ---------------------------------------------------------------------------
retlw 0A8 ; '¨'
; ---------------------------------------------------------------------------
retlw 0A9 ; '©' ; eeprom read address
; ---------------------------------------------------------------------------
retlw 0AA ; 'ª'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
retlw 79 ; 'y'
; ---------------------------------------------------------------------------
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
addlw 0FF
; assume pclath = 1
; =============== S U B R O U T I N E =======================================
SomeADCLookup: ; CODE XREF: RESET_0+EBp RESET_0+FEp
addwf BANK0:PCL, f
retlw 1
; End of function SomeADCLookup
; ---------------------------------------------------------------------------
retlw 1
; ---------------------------------------------------------------------------
retlw 2
; ---------------------------------------------------------------------------
retlw 3
; ---------------------------------------------------------------------------
retlw 4
; ---------------------------------------------------------------------------
retlw 5
; ---------------------------------------------------------------------------
retlw 6
; ---------------------------------------------------------------------------
retlw 6
; ---------------------------------------------------------------------------
retlw 7
; ---------------------------------------------------------------------------
retlw 8
; ---------------------------------------------------------------------------
retlw 9
; ---------------------------------------------------------------------------
retlw 9
; ---------------------------------------------------------------------------
retlw 0A
; ---------------------------------------------------------------------------
retlw 0B
; ---------------------------------------------------------------------------
retlw 0B
; ---------------------------------------------------------------------------
retlw 0C
; ---------------------------------------------------------------------------
retlw 0D
; ---------------------------------------------------------------------------
retlw 0D
; ---------------------------------------------------------------------------
retlw 0E
; ---------------------------------------------------------------------------
retlw 0F
; ---------------------------------------------------------------------------
retlw 0F
; ---------------------------------------------------------------------------
retlw 10
; ---------------------------------------------------------------------------
retlw 11
; ---------------------------------------------------------------------------
retlw 11
; ---------------------------------------------------------------------------
retlw 12
; ---------------------------------------------------------------------------
retlw 12
; ---------------------------------------------------------------------------
retlw 13
; ---------------------------------------------------------------------------
retlw 14
; ---------------------------------------------------------------------------
retlw 14
; ---------------------------------------------------------------------------
retlw 15
; ---------------------------------------------------------------------------
retlw 15
; ---------------------------------------------------------------------------
retlw 16
; ---------------------------------------------------------------------------
retlw 16
; ---------------------------------------------------------------------------
retlw 17
; ---------------------------------------------------------------------------
retlw 17
; ---------------------------------------------------------------------------
retlw 18
; ---------------------------------------------------------------------------
retlw 19
; ---------------------------------------------------------------------------
retlw 19
; ---------------------------------------------------------------------------
retlw 1A
; ---------------------------------------------------------------------------
retlw 1A
; ---------------------------------------------------------------------------
retlw 1B
; ---------------------------------------------------------------------------
retlw 1B
; ---------------------------------------------------------------------------
retlw 1C
; ---------------------------------------------------------------------------
retlw 1C
; ---------------------------------------------------------------------------
retlw 1D
; ---------------------------------------------------------------------------
retlw 1D
; ---------------------------------------------------------------------------
retlw 1E
; ---------------------------------------------------------------------------
retlw 1E
; ---------------------------------------------------------------------------
retlw 1F
; ---------------------------------------------------------------------------
retlw 1F
; ---------------------------------------------------------------------------
retlw 20 ; ' '
; ---------------------------------------------------------------------------
retlw 20 ; ' '
; ---------------------------------------------------------------------------
retlw 21 ; '!'
; ---------------------------------------------------------------------------
retlw 21 ; '!'
; ---------------------------------------------------------------------------
retlw 22 ; '"'
; ---------------------------------------------------------------------------
retlw 22 ; '"'
; ---------------------------------------------------------------------------
retlw 23 ; '#'
; ---------------------------------------------------------------------------
retlw 23 ; '#'
; ---------------------------------------------------------------------------
retlw 24 ; '$'
; ---------------------------------------------------------------------------
retlw 24 ; '$'
; ---------------------------------------------------------------------------
retlw 25 ; '%'
; ---------------------------------------------------------------------------
retlw 25 ; '%'
; ---------------------------------------------------------------------------
retlw 26 ; '&'
; ---------------------------------------------------------------------------
retlw 26 ; '&'
; ---------------------------------------------------------------------------
retlw 27 ; '''
; ---------------------------------------------------------------------------
retlw 27 ; '''
; ---------------------------------------------------------------------------
retlw 28 ; '('
; ---------------------------------------------------------------------------
retlw 28 ; '('
; ---------------------------------------------------------------------------
retlw 29 ; ')'
; ---------------------------------------------------------------------------
retlw 29 ; ')'
; ---------------------------------------------------------------------------
retlw 2A ; '*'
; ---------------------------------------------------------------------------
retlw 2A ; '*'
; ---------------------------------------------------------------------------
retlw 2B ; '+'
; ---------------------------------------------------------------------------
retlw 2B ; '+'
; ---------------------------------------------------------------------------
retlw 2C ; ','
; ---------------------------------------------------------------------------
retlw 2C ; ','
; ---------------------------------------------------------------------------
retlw 2D ; '-'
; ---------------------------------------------------------------------------
retlw 2D ; '-'
; ---------------------------------------------------------------------------
retlw 2E ; '.'
; ---------------------------------------------------------------------------
retlw 2E ; '.'
; ---------------------------------------------------------------------------
retlw 2F ; '/'
; ---------------------------------------------------------------------------
retlw 2F ; '/'
; ---------------------------------------------------------------------------
retlw 2F ; '/'
; ---------------------------------------------------------------------------
retlw 30 ; '0'
; ---------------------------------------------------------------------------
retlw 30 ; '0'
; ---------------------------------------------------------------------------
retlw 31 ; '1'
; ---------------------------------------------------------------------------
retlw 31 ; '1'
; ---------------------------------------------------------------------------
retlw 32 ; '2'
; ---------------------------------------------------------------------------
retlw 32 ; '2'
; ---------------------------------------------------------------------------
retlw 33 ; '3'
; ---------------------------------------------------------------------------
retlw 33 ; '3'
; ---------------------------------------------------------------------------
retlw 34 ; '4'
; ---------------------------------------------------------------------------
retlw 34 ; '4'
; ---------------------------------------------------------------------------
retlw 35 ; '5'
; ---------------------------------------------------------------------------
retlw 35 ; '5'
; ---------------------------------------------------------------------------
retlw 36 ; '6'
; ---------------------------------------------------------------------------
retlw 36 ; '6'
; ---------------------------------------------------------------------------
retlw 37 ; '7'
; ---------------------------------------------------------------------------
retlw 37 ; '7'
; ---------------------------------------------------------------------------
retlw 38 ; '8'
; ---------------------------------------------------------------------------
retlw 38 ; '8'
; ---------------------------------------------------------------------------
retlw 39 ; '9'
; ---------------------------------------------------------------------------
retlw 39 ; '9'
; ---------------------------------------------------------------------------
retlw 3A ; ':'
; ---------------------------------------------------------------------------
retlw 3A ; ':'
; ---------------------------------------------------------------------------
retlw 3B ; ';'
; ---------------------------------------------------------------------------
retlw 3B ; ';'
; ---------------------------------------------------------------------------
retlw 3C ; '<'
; ---------------------------------------------------------------------------
retlw 3C ; '<'
; ---------------------------------------------------------------------------
retlw 3D ; '='
; ---------------------------------------------------------------------------
retlw 3D ; '='
; ---------------------------------------------------------------------------
retlw 3E ; '>'
; ---------------------------------------------------------------------------
retlw 3E ; '>'
; ---------------------------------------------------------------------------
retlw 3F ; '?'
; ---------------------------------------------------------------------------
retlw 3F ; '?'
; ---------------------------------------------------------------------------
retlw 40 ; '@'
; ---------------------------------------------------------------------------
retlw 40 ; '@'
; ---------------------------------------------------------------------------
retlw 41 ; 'A'
; ---------------------------------------------------------------------------
retlw 41 ; 'A'
; ---------------------------------------------------------------------------
retlw 42 ; 'B'
; ---------------------------------------------------------------------------
retlw 42 ; 'B'
; ---------------------------------------------------------------------------
retlw 43 ; 'C'
; ---------------------------------------------------------------------------
retlw 44 ; 'D'
; ---------------------------------------------------------------------------
retlw 44 ; 'D'
; ---------------------------------------------------------------------------
retlw 45 ; 'E'
; ---------------------------------------------------------------------------
retlw 45 ; 'E'
; ---------------------------------------------------------------------------
retlw 46 ; 'F'
; ---------------------------------------------------------------------------
retlw 46 ; 'F'
; ---------------------------------------------------------------------------
retlw 47 ; 'G'
; ---------------------------------------------------------------------------
retlw 47 ; 'G'
; ---------------------------------------------------------------------------
retlw 48 ; 'H'
; ---------------------------------------------------------------------------
retlw 48 ; 'H'
; ---------------------------------------------------------------------------
retlw 49 ; 'I'
; ---------------------------------------------------------------------------
retlw 4A ; 'J'
; ---------------------------------------------------------------------------
retlw 4A ; 'J'
; ---------------------------------------------------------------------------
retlw 4B ; 'K'
; ---------------------------------------------------------------------------
retlw 4B ; 'K'
; ---------------------------------------------------------------------------
retlw 4C ; 'L'
; ---------------------------------------------------------------------------
retlw 4D ; 'M'
; ---------------------------------------------------------------------------
retlw 4D ; 'M'
; ---------------------------------------------------------------------------
retlw 4E ; 'N'
; ---------------------------------------------------------------------------
retlw 4F ; 'O'
; ---------------------------------------------------------------------------
retlw 4F ; 'O'
; ---------------------------------------------------------------------------
retlw 50 ; 'P'
; ---------------------------------------------------------------------------
retlw 50 ; 'P'
; ---------------------------------------------------------------------------
retlw 51 ; 'Q'
; ---------------------------------------------------------------------------
retlw 52 ; 'R'
; ---------------------------------------------------------------------------
retlw 52 ; 'R'
; ---------------------------------------------------------------------------
retlw 53 ; 'S'
; ---------------------------------------------------------------------------
retlw 54 ; 'T'
; ---------------------------------------------------------------------------
retlw 54 ; 'T'
; ---------------------------------------------------------------------------
retlw 55 ; 'U'
; ---------------------------------------------------------------------------
retlw 56 ; 'V'
; ---------------------------------------------------------------------------
retlw 57 ; 'W'
; ---------------------------------------------------------------------------
retlw 57 ; 'W'
; ---------------------------------------------------------------------------
retlw 58 ; 'X'
; ---------------------------------------------------------------------------
retlw 59 ; 'Y'
; ---------------------------------------------------------------------------
retlw 59 ; 'Y'
; ---------------------------------------------------------------------------
retlw 5A ; 'Z'
; ---------------------------------------------------------------------------
retlw 5B ; '['
; ---------------------------------------------------------------------------
retlw 5C ; '\'
; ---------------------------------------------------------------------------
retlw 5C ; '\'
; ---------------------------------------------------------------------------
retlw 5D ; ']'
; ---------------------------------------------------------------------------
retlw 5E ; '^'
; ---------------------------------------------------------------------------
retlw 5F ; '_'
; ---------------------------------------------------------------------------
retlw 60 ; '`'
; ---------------------------------------------------------------------------
retlw 61 ; 'a'
; ---------------------------------------------------------------------------
retlw 61 ; 'a'
; ---------------------------------------------------------------------------
retlw 62 ; 'b'
; ---------------------------------------------------------------------------
retlw 63 ; 'c'
; ---------------------------------------------------------------------------
retlw 64 ; 'd'
; ---------------------------------------------------------------------------
retlw 65 ; 'e'
; ---------------------------------------------------------------------------
retlw 66 ; 'f'
; ---------------------------------------------------------------------------
retlw 67 ; 'g'
; ---------------------------------------------------------------------------
retlw 68 ; 'h'
; ---------------------------------------------------------------------------
retlw 69 ; 'i'
; ---------------------------------------------------------------------------
retlw 6A ; 'j'
; ---------------------------------------------------------------------------
retlw 6B ; 'k'
; ---------------------------------------------------------------------------
retlw 6C ; 'l'
; ---------------------------------------------------------------------------
retlw 6D ; 'm'
; ---------------------------------------------------------------------------
retlw 6E ; 'n'
; ---------------------------------------------------------------------------
retlw 6F ; 'o'
; ---------------------------------------------------------------------------
retlw 70 ; 'p'
; ---------------------------------------------------------------------------
retlw 71 ; 'q'
; ---------------------------------------------------------------------------
retlw 73 ; 's'
; ---------------------------------------------------------------------------
retlw 74 ; 't'
; ---------------------------------------------------------------------------
retlw 75 ; 'u'
; ---------------------------------------------------------------------------
retlw 76 ; 'v'
; ---------------------------------------------------------------------------
retlw 78 ; 'x'
; ---------------------------------------------------------------------------
; START OF FUNCTION CHUNK FOR ISR
; assume pclath = 0
I2C_IRQ_Handler: ; CODE XREF: ISR+9j
movfw irq_store_w
movwf irq_fw_copy
movfw irq_store_status
movwf irq_status_copy
movfw irq_store_pclath
movwf irq_pclath_copy
bcf BANK0:STATUS, RP0
bsf BANK0:STATUS, RP1
; assume bank = 2
movlw 26 ; '&'
movwf i2c_timeout_counter_msb
movlw 0F9 ; 'ù'
movwf i2c_timeout_counter_lsb
bcf BANK2:STATUS, RP1
; assume bank = 0
clrf cleared_every_i2c_irq
bsf BANK0:STATUS, RP0
; assume bank = 1
btfsc BANK1:SSPSTAT, D_A ; Check if data or address (1=data)
b I2C_Was_Data
bcf BANK1:STATUS, RP1 ; received address byte
bcf BANK1:STATUS, RP0
; assume bank = 0
movfw BANK0:SSPBUF ; read address byte (just to avoid overflow)
bcf i2c_flags2, 2
bcf i2c_flags1, 5 ; bit0=psu on,bit1 set every 10k timerIrqs
bcf i2c_flags2, 1
bsf BANK0:STATUS, RP0
; assume bank = 1
btfss BANK1:SSPSTAT, R_W ; is in read or write mode (1=read)
b i2c_exit_irq ; master is writing to us (and we just got address byte so are done)
bcf BANK1:STATUS, RP0 ; master is reading from us (so we need to set up the first data byte for it)
; assume bank = 0
bsf i2c_flags2, 1 ; state 3
btfss i2c_flags1, 3 ; bit0=psu on,bit1 set every 10k timerIrqs
b flags1_bit3_clear
movfw i2c_rx_checksum ; this is the first byte read after the address write(w/read bit set), which was prepared during the write+address phase earlier
movwf BANK0:SSPBUF ; output i2c_byte_temp to master
nop
nop
b i2c_exit_irq
; ---------------------------------------------------------------------------
flags1_bit3_clear: ; CODE XREF: ISR+1D7j
btfss i2c_flags1, 6 ; bit0=psu on,bit1 set every 10k timerIrqs
b flags1_bit6_clear
comf i2c_rx_checksum, w
movwf BANK0:SSPBUF ; output complement of i2c_byte_temp to master
nop
nop
b i2c_exit_irq
; ---------------------------------------------------------------------------
flags1_bit6_clear: ; CODE XREF: ISR+1DEj
btfsc i2c_flags1, 4 ; bit0=psu on,bit1 set every 10k timerIrqs
b flags1_bit4_set1
movlw 55 ; 'U'
movwf BANK0:SSPBUF ; output 0x55 to master
nop
nop
b i2c_exit_irq
; ---------------------------------------------------------------------------
flags1_bit4_set1: ; CODE XREF: ISR+1E5j
movlw 0
movwf BANK0:PCLATH
movfw i2c_cmd_code ; can read various bytes of memory with cmds 0-58
sublw 58 ; 'X'
bc cmd_lessthan_58
movlw 59 ; 'Y' ; clamp at 0x59
movwf i2c_cmd_code ; clamp to max 59
cmd_lessthan_58: ; CODE XREF: ISR+1EFj
movfw i2c_cmd_code
call lookup_ram_to_read_for_cmd
clrf BANK0:PCLATH
movwf BANK0:FSR ; set up indirect address
movfw BANK0:INDF ; fetch from indirect address
bcf BANK0:STATUS, IRP
movwf BANK0:SSPBUF ; send indirectly-fetched data
nop
nop
movwf i2c_checksum ; start checksum
b i2c_exit_irq
; ---------------------------------------------------------------------------
; assume bank = 1
I2C_Was_Data: ; CODE XREF: ISR+1CAj
bcf BANK1:STATUS, RP0
; assume bank = 0
btfsc i2c_flags2, 1