Thank you for yor comments,
Joe: adding DEC statement caused the value in Terminal program incorrect , it spits more character
This is my code, please check if there is something wrong with fuses or defines
I use 18F2550, 10mhz xtal with hs pll ( 40mhz)
Code:
ASM
__CONFIG _CONFIG1L, _PLLDIV_10_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_1_1L
__CONFIG _CONFIG1H, _FOSC_HSPLL_HS_1H
__CONFIG _CONFIG2L, _PWRT_ON_2L & _BOR_ON_2L & _VREGEN_OFF_2L
__CONFIG _CONFIG2H, _WDT_OFF_2H & _WDTPS_512_2H
__CONFIG _CONFIG3H, _PBADEN_OFF_3H & _MCLRE_ON_3H & _CCP2MX_ON_3H
__CONFIG _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L & _DEBUG_OFF_4L
ENDASM
define OSC 40
DEFINE LCD_DREG PORTB ' LCD data port
DEFINE LCD_DBIT 0 ' LCD data starting bit
DEFINE LCD_RSREG PORTB ' LCD register select port
DEFINE LCD_RSBIT 4 ' LCD register select bit
DEFINE LCD_EREG PORTB ' LCD enable port
DEFINE LCD_EBIT 5 ' LCD enable bit
DEFINE LCD_BITS 4 ' LCD data bus size
DEFINE LCD_LINES 2 ' Number lines on LCD
DEFINE LCD_COMMANDUS 1500 ' Command delay time in us
DEFINE LCD_DATAUS 44 ' Data delay time in us
DEFINE ADC_BITS 8 ' ADC resolution 8 bit
DEFINE ADC_CLOCK 3 '
DEFINE ADC_SAMPLEUS 50
define HSER_RCSTA 90H
DEFINE HSER_TXSTA 20H
DEFINE HSER_BAUD 9600
DEFINE HSER_SPBRG 25
DEFINE HSER_CLROERR 1
reading var byte
clear
porta = 0
portb = 0
portc = 0
TRISA = %00000001 ' Set PORTA to all input
TRISB = %00000000 ' Set PORTB to all output
TRISC = %00000000 ' Set PORTC.7 as input, other RC as output
ADCON1 = %00001110
LCDOUT $FE, 1
pause 100
main:
adcin 0,reading
lcdout $Fe,1," Value "
LCDOUT $FE, $C0, dec reading
pause 50
hserout [reading ]
pause 50
goto main
Bookmarks