Hi guys
I am using pic12f675 and a shift register from 74 series. I don't know why my shift register doesn't do anything. I am sure that the program is wrong but I can not find any sample program in pbp that used a shift registre (74ls794).I am not sure if the problem is about the clock or it's just about the IC . Here is the code:
@ __config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_OFF & _PWRTE_OFF & _BODEN_OFF
INCLUDE "modedefs.bas" ' Include serial modes
TRISIO = %11010000
OPTION_REG.7=0 ' Enable pull-ups
WPU=%00010000 ' Enable pull-ups on GP0, GP1,GP4
CMCON=%00000100
VRCON=%10100000
ANSEL=0
' Define LCD connections
DEFINE LCD_CLK GPIO.1
DEFINE LCD_D GPIO.2
DEFINE LCD_BITS 4
DEFINE LCD_DREG GPIO
DEFINE LCD_DBIT 4
DEFINE LCD_RSREG GPIO
DEFINE LCD_RSBIT 5
DEFINE LCD_EREG GPIO
DEFINE LCD_EBIT 0
DEFINE LCD_LINES 2
DEFINE LCD_COMMANDUS 2000
DEFINE LCD_LCDUS 50
Main:
PAUSE 500
SEROUT GPIO.2,N2400,[$FE,1]
PAUSE 50
SEROUT GPIO.2,N2400,["HELLO,",10,13]
PAUSE 50
SEROUT GPIO.2,N2400,["WORLD,",10,13,10,13]
PAUSE 500
GOTO Main
