NIGEL PIC Tutorial Hardware phần 5 potx

... LCD_Char retlw 0x00 Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw ... d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw d'20' ;delay 20mS goto d0 Delay5 movlw 0x 05 ;delay 5. 000 ms (4 MHz clock) d0 movwf count1 d1 movlw 0xC7 ;delay 1mS...

Ngày tải lên: 08/08/2014, 03:20

... routines ;Delay routines Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw ... connected to PortA if required. Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw d'20' ;delay 20mS goto d0 Delay5 movlw 0x 05 ;delay 5. 000 ms (4 MH...

Ngày tải lên: 08/08/2014, 03:20

... ;Delay routines Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw ... ;Delay routines Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay27 mov...

Ngày tải lên: 08/08/2014, 03:20

... PORTA Delay routines Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw ... ;delay 1mS goto d0 Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20...

Ngày tải lên: 08/08/2014, 03:20

... (d' 250 ') used in the Delay subroutine. Tutorials below here require the LED board Tutorial 1 .5 This uses the LED board, and runs a single LED across the row of eight. ;Tutorial 1 .5 ... still flash once per second, but only stay on for 1/4 of the time ( 25/ 75) - this will only use 50 % of the power that a 50 /50 flash would consume. There are huge advantages in u...

Ngày tải lên: 08/08/2014, 03:20

... d' 250 ' ;delay 250 ms (4 MHz clock) movwf count1 d1 movlw 0xC7 movwf counta movlw 0x01 movwf countb Delay_0 decfsz counta, f goto $+2 decfsz countb, f goto Delay_0 PIC Tutorial ... and inelegant!. Tutorial 1 .5 uses 24 lines within the loop, by introducing another PIC command we can make this smaller, and much more elegant. ;Tutorial 1.7 - Nigel...

Ngày tải lên: 08/08/2014, 03:20

... Delay Del5 movlw d&apos ;5& apos; ;delay 5mS goto Delay Del10 movlw d'10' ;delay 10mS goto Delay Del20 movlw d'20' ;delay 20mS goto Delay Del50 movlw d&apos ;50 ' ... was last pressed. Tutorial 2.4 - requires Main Board, Switch Board, and LED Board. Very similar to the last tutorial, except this one combines Tutorials 2.2 and 2.3 with Tutorial 1.9, t...

Ngày tải lên: 08/08/2014, 03:20

... LCD_Char retlw 0x00 Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw ... d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw d'20' ;delay 20mS goto d0 Delay5 movlw 0x 05 ;delay 5. 000 ms (4 MHz clock) d0 movwf count1 d1 movlw 0xC7 ;delay 1mS...

Ngày tải lên: 08/08/2014, 03:20

... ;Delay routines Delay 255 movlw 0xff ;delay 255 mS goto d0 Delay100 movlw d'100' ;delay 100mS goto d0 Delay50 movlw d&apos ;50 ' ;delay 50 mS goto d0 Delay20 movlw ... d' 255 ' - d'60' ; if LoX <= 60 btfsc STATUS , C goto TryOne bsf Flags, Zero ; Zero found, set flag retlw 0x00 TryOne movf LoX, w ; check if one addlw d'...

Ngày tải lên: 08/08/2014, 03:20

... conversion from 0-2.5V, however this can easily be scaled by feeding from a suitable attenuator. PIC Tutorial Seven - RS232 RS232 Board This is the RS232 board, it uses a MAX232 5V to RS232 converter ... converts the 0- 5V TTL levels at the PIC pins to the +12V/-12V levels used in RS232 links. As is common with these devices it inverts the data during the conversion, the PIC...

Ngày tải lên: 08/08/2014, 03:20