; test sw
; mikrokontroler AT89C2051, krystal @24MHz, 
; M-IDE Studio
$NOMOD51  
$include (89C2051.MCU)	
; Konfiguracia I/O pinov 
;------------------------------------------------------------------
		serial_pin	equ  p3.0	; vystupny pin ser. dat	
;------------------------------------------------------------------
dseg	;datovy segment
	org 20h		; data v bitovo adr oblasti
		data_byte_0:	ds 1		; nase premenne
		data_byte_1:	ds 1
		data_byte_2:	ds 1
		data_byte_3:	ds 1
		data_byte_4:	ds 1
;
;------------------------------------------------------------------
cseg     ; programovy segment
	org 0h
        	sjmp start	
        ;org 00Bh		
		;reti
;------------------------------------------------------------------
	org 30h		; program ulozeny vo flash pamati od adr #30h
start:		mov	sp,#90		; zasobnik v ram od adr 90dec
		mov data_byte_0, #10	; pociatocne hodnoty
		mov data_byte_1, #20
		mov data_byte_2, #30
		mov data_byte_3, #40
		mov data_byte_4, #50
;------------------------------------------------------------------
;Hlavna slucka
;------------------------------------------------------------------ 
main:			acall send_data		;posli
		sjmp main	; 
;
;------------------------------------------------------------------
;Podprogramy
;------------------------------------------------------------------
; posle data "data_byte" z ram seriovo na prislusny pin				cas vykonavania 
send_data:	; prvym bajtom ...	
		mov c, data_byte_0.0	; 0,5us		presun 1 bitu z ram na pin trva 1,5us pri @24HHz xtale
		mov serial_pin, c	; 1us
		mov c, data_byte_0.1	; zacneme LSB
		mov serial_pin, c
		mov c, data_byte_0.2	; 
		mov serial_pin, c
		mov c, data_byte_0.3	; 
		mov serial_pin, c
		mov c, data_byte_0.4	;
		mov serial_pin, c
		mov c, data_byte_0.5	; 
		mov serial_pin, c
		mov c, data_byte_0.6	; 
		mov serial_pin, c
		mov c, data_byte_0.7	; 
		mov serial_pin, c
		;
		mov c, data_byte_1.0	; druhy byte
		mov serial_pin, c
		mov c, data_byte_1.1	; 
		mov serial_pin, c
		mov c, data_byte_1.2	; 
		mov serial_pin, c
		mov c, data_byte_1.3	; 
		mov serial_pin, c
		mov c, data_byte_1.4	; 
		mov serial_pin, c
		mov c, data_byte_1.5	; 
		mov serial_pin, c
		mov c, data_byte_1.6	; 
		mov serial_pin, c
		mov c, data_byte_1.7	; 
		mov serial_pin, c
		;
		mov c, data_byte_2.0	; treti byte
		mov serial_pin, c
		mov c, data_byte_2.1	; 
		mov serial_pin, c
		mov c, data_byte_2.2	; 
		mov serial_pin, c
		mov c, data_byte_2.3	; 
		mov serial_pin, c
		mov c, data_byte_2.4	; 
		mov serial_pin, c
		mov c, data_byte_2.5	; 
		mov serial_pin, c
		mov c, data_byte_2.6	; 
		mov serial_pin, c
		mov c, data_byte_2.7	; 
		mov serial_pin, c
		;
		mov c, data_byte_3.0	; stvrty byte
		mov serial_pin, c
		mov c, data_byte_3.1	; 
		mov serial_pin, c
		mov c, data_byte_3.2	; 
		mov serial_pin, c
		mov c, data_byte_3.3	; 
		mov serial_pin, c
		mov c, data_byte_3.4	; 
		mov serial_pin, c
		mov c, data_byte_3.5	; 
		mov serial_pin, c
		mov c, data_byte_3.6	; 
		mov serial_pin, c
		mov c, data_byte_3.7	; 
		mov serial_pin, c
		;
		mov c, data_byte_4.0	; piaty byte
		mov serial_pin, c
		mov c, data_byte_4.1	; 
		mov serial_pin, c
		mov c, data_byte_4.2	; 
		mov serial_pin, c
		mov c, data_byte_4.3	; 
		mov serial_pin, c
		mov c, data_byte_4.4	; 
		mov serial_pin, c
		mov c, data_byte_4.5	; 
		mov serial_pin, c
		mov c, data_byte_4.6	; 
		mov serial_pin, c		; 1us
		mov c, data_byte_4.7	; 	; 0,5us
		mov serial_pin, c
		; hotovo :
		ret				; naspat			1 us
;-------------------------------------------------------------------------------- 
end