?? 2.txt
字號:
; specs
; baud rate parity data bits stop bits
; 2400 n 8 2
; data
; year month day hour minute second index break value
; yyyy mm dd hh mm ss iiiiii kkkkd
;
;//// 16f84 pin In/Out function
;//// ra0 17 I reed rla 4 closure for HOLD
;//// ra1 18 O rtc /rst pin5
;//// ra2 1 O rtc clk pin7
;//// ra3 2 I/O rtc dq data pin6
;//// ra4 3 O serial out rs232 0-5vdc (or up to 14v)
;////
;//// rb0 6 I/O interrupt of D.U. of mc14433 adc
;//// rb1 7 I BCD data from mc14433 Q0 pin20
;//// rb2 8 I BCD Q1 &p; pin21
;//// rb3 9 I BCD Q2 &p; pin22
;//// rb4 10 I BCD most sig. Q3 pin23
;//// rb5 11 I normally HI switches advance time
;//// rb6 12 I " " retard time
;//// rb7 13 spare
;////
;//////////////////////////////////////////////////////////////////////////
include <p16f84.inc>
eerd equ 0 ;eeprom eecon1,0 read bit
eewr equ 1 ;eeprom eecon1,1 write bit
;porta
rr4 equ 0 ;reed relay4 closure. LO=closed
_rst equ 1 ;rtc rst
clk equ 2 ;rtc clk
dataq equ 3 ;rtc (I/O)
tx equ 4 ;rs232 tx line
#define REED4 porta,rr4 ;INPUT ex m/b reed relay4. close=LO
#define CLKRST porta,_rst ;rtc rst
#define SCLK porta,clk ;rtc clk
#define CLKDATA porta,dataq ;rtc (I/O)
#define SERTX porta,tx ;rs232 serial transmit line
;portb
eoc equ 0 ;du = end of conv. int. and HOLD
bcd_q0 equ 1 ;bcd data. ls bit
bcd_q1 equ 2 ;bcd
bcd_q2 equ 3 ;bcd
bcd_q3 equ 4 ;bcd data. ms bit
up_switch equ 5 ;normally HI switch for up time
down_switch equ 6 ;" " " retard time
; equ 7 ;spare
#define EOC portb,eoc
#define BCD_Q0 portb,bcd_q0
#define BCD_Q1 portb,bcd_q1
#define BCD_Q2 portb,bcd_q2
#define BCD_Q3 portb,bcd_q3
#define UP_SWIT portb,up_switch
#define DO_SWIT portb,down_switch
;#define portb,
;general purpose bit definitions
;gpflags register
reed equ 0 ;reed relay `got pushed' flag
up equ 1 ;up button `already pushed' flag
down equ 2 ;down button `already pushed'
;general purpose register definitions
cblock 0x0C
m_porta ;mirror of port a
m_portb ;mirror of port b
gpflags ;general flags
scratch ;scratch reg for *temporary* use
scratch1 ; " &n;
count1 ;counts 1,2,3 are for gen purpose
count2 ;delay routines
count3 ;
up_count ;count of 0.1 secs when UP switch closed
down_count ;count of 0.1 secs when DOWN switch closed
timer1 ;for 8bit rotates in/out
timer2 ;per Mark Sullivan's code 25.7.96
timer3 ;for the ds1202 or ds1302
count4 ;real-time-clock
second ;
minute ;
hour ;
date ;
month ;
day ;
year ;
ds1 ;adc most sig. bcd byte-low nibble only
ds2 ; these are the bcd bytes as read in fro
ds3 ; the adc, and have been massaged into
ds4 ; (not packed) bcd
tx_buff ;rs232 send routine
pr01 ;rs232 buffer table pointer offset
samp_index1 ;sample index no. binary l.s.byte EEPROM
samp_index2 ;binary eeprom
samp_index3 ;binary most sig. index eeprom byte
count5 ;used in binary-to-bcd routine
temp_f ;for outputting binary-held data to
buff_4 ;bcd. bcd-to-ascii and rs232
buff_3 ;is then possible
buff_2
buff_1
temp_a
temp_b
temp_c
temp_d
temp_e
endc
;*********************************************end system definitions
;*********************************************system origin
org 0x000
goto start
org 0x004
goto service
;*********************************************end system origin
;************************************************tables first
powerup_table1
addwf pcl,same
retlw 0x59 ;Y ASCII char
retlw 0x65 ;e
retlw 0x61 ;a
retlw 0x72 ;r
retlw 0x20 ; sp
retlw 0x4D ;M
retlw 0x6F ;o
retlw 0x20 ; sp
retlw 0x44 ;D
retlw 0x61 ;a
retlw 0x20 ; sp
retlw 0x20 ; sp
retlw 0x68 ;h
retlw 0x72 ;r
retlw 0x20 ; sp
retlw 0x6D ;m
retlw 0x69 ;i
retlw 0x20 ; sp
retlw 0x73 ;s
retlw 0x65 ;e
retlw 0x20 ; sp
retlw 0x20 ; sp
retlw 0x69 ;i
retlw 0x6E ;n
retlw 0x64 ;d
retlw 0x65 ;e
retlw 0x78 ;x
retlw 0x20 ; sp
retlw 0x20 ; sp
retlw 0x20 ; sp
retlw 0x46 ;F
retlw 0x6F ;o
retlw 0x72 ;r
retlw 0x63 ;c
retlw 0x65 ;e
retlw 0x20 ; sp
retlw 0x20 ; sp
retlw 0x20 ; sp
retlw 0x20 ; sp
retlw 0x20 ; sp 40thar
retlw 0x20 ; sp extrfor surety
retlw 0x20 ; sp
retlw 0x20 ; sp extrfor surety
retlw 0x20 ; sp
;********************************************************end of tables
;*********************************************************initialisations
start
;clear all ram registers
movlw 0x0C ;start of ram
movwf fsr
clrf indf ;$-3 to here
incf fsr,same
btfss fsr,7
goto $-3 ;back to clrf indf  bsp;
bsf status,rp0
;setup trisa, b
movlw 00001001b
movwf trisa &nb
movlw 01111111b
movwf trisb
bcf status,rp0
movlw 00000000b
movwf porta
movwf portb
;***************************************************end of initialisation
;*********************************************main loop begins
call delay_100ms
call rclock ;fetch the current contents of rtc itself
bcf second,7 ;clear `clock halt' CH bit
bcf hour,7 ;am/pm:24 -> 24 hr mode
call wclock
call delay_1sec
call rclock
movlw 0x12 ;ascii byte `DC2' resets compressed printing
call txbyte
call powerup_dump
main_loop1
;*********************** check the time advance & retard switches
call rclock
btfsc UP_SWIT ;switch is in, if result=LO
goto time_retard0 ;switch open, so drop thru & check DOWN
btfsc UP_SWIT
goto time_adv1
call inc_minute_bcd
call wclock
call crush_dump
call delay_1sec
time_adv1 btfsc UP_SWIT
goto time_adv2
call inc_hour_bcd
call wclock
call crush_dump
call delay_1sec
time_adv2 btfsc UP_SWIT
goto time_adv3
call inc_date_bcd
call wclock
call crush_dump
call delay_1sec
time_adv3 btfsc UP_SWIT
goto time_adv4
call inc_month_bcd
call wclock
call crush_dump
call delay_1sec
time_adv4 btfsc UP_SWIT
goto main_loop3
call inc_year_bcd
call wclock
call crush_dump
call delay_1sec
goto main_loop3
time_retard0
btfsc DO_SWIT
goto main_loop3 ;jump out, no switch is in
call dec_minute_bcd
call wclock
call crush_dump
call delay_1sec
time_retard1 btfsc DO_SWIT
goto time_retard2
call dec_hour_bcd
call wclock
call crush_dump
call delay_1sec
time_retard2 btfsc DO_SWIT
goto time_retard3
call dec_date_bcd
call wclock
call crush_dump
call delay_1sec
time_retard3 btfsc DO_SWIT
goto time_retard4
call dec_month_bcd
call wclock
call crush_dump
call delay_1sec
time_retard4 btfsc DO_SWIT
goto main_loop3
call dec_year_bcd
call wclock
call crush_dump
call delay_1sec
;*********************** finish time advance & retard
main_loop3
nop
nop
btfsc REED4 ;test reed relay closure. LO=closed
goto main_loop4 ;open ie no TRIP
btfss gpflags,reed
goto main_loop6
goto main_loop1
main_loop4 bcf gpflags,reed
bsf status,rp0 ;set to bank1
bsf trisb,eoc ;eoc becomes input
bcf status,rp0 ;set to bank0
goto main_loop1  bsp;
main_loop6 bsf gpflags,reed
call inc_eeprom ;increment eeprom regs+1
call read_adc ;capture current force reading
call crush_dump ;print one data dump only
goto main_loop1
;*********************************************main loop ends
;************************************** specific RTC ds1302 subroutines begin
;
; Write calendar clock
; per Mark K Sullivan 25.7.96
; this routine takes ALL the seconds ---> year fregs in 16f84 and
; writes them to the ds1302. NB that means that if you want to adjust
; the rtc time registers, you have to do a read first (of them all).
; The rclock routine following, reads the whole lot in `burst mode'
; and puts the values into seconds --->year fregs
wclock bcf SCLK ;negate clock line
nop
nop
nop
nop
bcf CLKDATA
bsf CLKRST ;negate RST
bsf status,rp0 ;I/O dataq line set to output
bcf trisa,dataq
bcf status,rp0
movlw 0x8E ;write control register
call wbyte
movlw 0x00 ;turn off Write Protect in rtc
call wbyte
movlw 7
movwf timer3
movlw 0x80 ;rtc register address for `second'
movwf count4
movlw second
movwf fsr
wc bcf CLKRST ;assert RST
bcf SCLK ;negate clock
nop
nop
nop
nop
bsf CLKRST ;negate RST
movf count4,W
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