blink a single led

[MINHLE]

Thks,
yes, i did every thing to run but no way
one of the thing is the led on or off when my hand is getting closer to it (the whole surface p10 led dot matrix)

[Dave]

Minhle, A rough schematic would be helpful....

[MINHLE]

TKS
i attach the schematic drawing from isis.
the program is similiar to the 1 above
this is the schematic on the breadboard.
the internal osc is used 64mhz
the leds r connected through 100 or 1k ohm resistors
when simulating on isis: osc is changed to 4mhz



PORTTEST_18F26K20.doc

[richard]

I would not expect anyone who values their computer's integrity to open a "doc" file from an untrusted source.

make it a jpg,gig,png or some other safer format



ps what version of pbp are you using . that config section is way way old hat

[Art]

Maybe on breadboard the crystal didn’t start to oscillate.
Try licking your finger and touching one leg, then the other, then both.

Edit.. whoops.. uses internal osc.. can’t delete post.

[MINHLE]

tks for all

now i know how to send by pdf, here is the attachment
pic18f26k20_porttest.PDF
i used pbp v 2.6

i used internal osc 64mhz or 4mhz
no external capacitors on the osc pins,
the same program that is programed into the chip ran before but now it does not ( on both pcb and breadboard)
i attach the program that is slighly changed the pause statement:

INCLUDE "h:\AllDigital.pbp"
ASM
__CONFIG _CONFIG1H, _FOSC_INTIO67_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
__CONFIG _CONFIG2H, _WDTEN_ON_2H & _WDTPS_512_2H
__CONFIG _CONFIG3H, _CCP2MX_PORTC_3H & _PBADEN_OFF_3H & _LPT1OSC_OFF_3H & _HFOFST_ON_3H & _MCLRE_ON_3H
__CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _XINST_OFF_4L
ENDASM
OSCCON = $70 '$70 Internal oscillator is set to 16MHz $62 ' 8mhz--- '; Primary Clock is selected as system clock.
OSCTUNE = $40 'HFINTOSC selected; PLL enabled; Factory calibrated frequency
define OSC 64
ADCON0 = 0
CM1CON0.7 = 0
CM2CON0.7 = 0
portb = 0
latb = 0
trisb = 0
'------------------------------------------
i var byte
m var byte
main_program:
gosub blink 'call suroutin to blink a led
GOTO main_program
'==============================================
blink:
high portb '= $ff ' light the led for acertain amount of time
for i = 0 to 100 'loop to maintain the led on
FOR M = 0 TO 10
pause 1
NEXT
NEXT
low portb '= 0 'tuen off the led for certain amount of time
for i = 0 to 50 'loop to maintain the led off
FOR M = 0 TO 10
pause 1
NEXT
NEXT
return
'-------------------------------------------
end

[MINHLE]

i do not under stand configuration is old hat and
internal osc can delete post?
can you explain clearly,
tks