alarm house 16f877 ? - Page 2 - Electronic Circuits Projects Diagrams Free

seti75 · 12th July 2009, 03:48 PM

the hardware, it should be made ?

blueroomelectronics · 12th July 2009, 04:30 PM

You can connect the simulated LCD just like a real on with the Oshonsoft simulator.

seti75 · 12th July 2009, 06:55 PM

I think the 16F877 has died.
someone has a small program with some leds
and tried to make sure that the 16F877 is dead?
thank

Chippie · 12th July 2009, 07:53 PM

Quote:

Originally Posted by seti75

I think the 16F877 has died.

Can you read the program back from the pic using your programmer?
Try erasing the pic and reprogramming..

blueroomelectronics · 12th July 2009, 08:45 PM

My Inchworm quick start poster on my site has a schematic and program to flash an LED with a 16F877

seti75 · 12th July 2009, 08:53 PM

I program with winpic800 and icprog.
programming is normally ok at the end.
reading the 16F877 is also normally
with winpic800 and icprog.
when I delete the pic is also good.
reading indicates 3FFF ... ... so it's good 3FFF
but I do not understand why the pic does not work with any program! ?....

my 16f877 -----> Imageshack - 16f87720p

blueroomelectronics I can not find ? thank.
..... hex if possible i have difficulty
convert asm.to .hex

Chippie · 12th July 2009, 09:03 PM

Quote:

Originally Posted by seti75

blueroomelectronics I can not find ? thank.
..... hex if possible i have difficulty
convert asm.to .hex

Use Mpasm to generate the hex file from the assembly code...

You can download Mpasm from Microchip's website

seti75 · 12th July 2009, 09:52 PM

I use MPLAB v8
I never managed to create a. hex from a file asm
Here is what I do and every time an error

project wizard --> next...16f877 --> next --> indic.location Mpaswin.exe ..---> next
creat name project file ..next --->add file asm..--> completed

after
....project open file project...---> make ------> error !!

seti75 · 14th July 2009, 01:09 PM

16f877 --> he died ?

be80be · 14th July 2009, 03:12 PM

Quote:

I use MPLAB v8
I never managed to create a. hex from a file asm
Here is what I do and every time an error

project wizard --> next...16f877 --> next --> indic.location Mpaswin.exe ..---> next
creat name project file ..next --->add file asm..--> completed

after
....project open file project...---> make ------> error !!
__________________
paris (france)

Hard to help you with this we have not any thing to go by
There a lot of things that can go wrong bigest is you tried to build on the desktop
and not a C:\ myfile\firsttry.asm

I have had a 16f877 stop working and all it was is the osc stoped working. I wouldn't throw it away
it's more likely something your doing.

birdman0_o · 14th July 2009, 03:18 PM

Pourquoi esce que vouz utilisiez un oscillateur externe?
Why are you using an external oscillator?

be80be · 14th July 2009, 03:29 PM

Quote:

Originally Posted by birdman0_o

Pourquoi esce que vouz utilisiez un oscillateur externe?
Why are you using an external oscillator?

It's A 16f877 they have no internal oscillator

seti75 · 14th July 2009, 03:39 PM

my lcd
http://www.selectronic.fr/upload/pro...nique/2337.pdf

a real say j' board many programs for 16F877 n'ais I never had a successful figure !
I do not know if this is the 16F877 or lcd that has a problem ?

how to say that c' is the 16f877 which has a prbléme or the lcd which has a problem?

thank

be80be ? --->

Imageshack - schematic

be80be · 14th July 2009, 03:48 PM

You building this on a solder less bread board right try two things first clip a gnd on the OSC to gnd see if that works If not remove c5 and c4 and see if that works

Chippie · 14th July 2009, 03:50 PM

Alors,

I have found my issue of EP numer 265.....Sadly that issue is no longer avaiable so I cant download the source code...

Suffice to say, I built a project from another issue called Meleda, based on 16F84 that refused to work...So I wouldnt rule out a s/w issue...

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12th July 2009, 03:48 PM	#16
seti75	the hardware, it should be made ? __________________ paris (france) Last edited by seti75; 12th July 2009 at 03:48 PM.

12th July 2009, 04:30 PM	#17
blueroomelectronics	You can connect the simulated LCD just like a real on with the Oshonsoft simulator. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/

12th July 2009, 06:55 PM	#18
seti75	I think the 16F877 has died. someone has a small program with some leds and tried to make sure that the 16F877 is dead? thank __________________ paris (france)

12th July 2009, 08:45 PM	#20
blueroomelectronics	My Inchworm quick start poster on my site has a schematic and program to flash an LED with a 16F877 __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/

12th July 2009, 08:53 PM	#21
seti75	I program with winpic800 and icprog. programming is normally ok at the end. reading the 16F877 is also normally with winpic800 and icprog. when I delete the pic is also good. reading indicates 3FFF ... ... so it's good 3FFF but I do not understand why the pic does not work with any program! ?.... my 16f877 -----> Imageshack - 16f87720p blueroomelectronics I can not find ? thank. ..... hex if possible i have difficulty convert asm.to .hex __________________ paris (france) Last edited by seti75; 12th July 2009 at 09:00 PM.

12th July 2009, 09:52 PM	#23
seti75	I use MPLAB v8 I never managed to create a. hex from a file asm Here is what I do and every time an error project wizard --> next...16f877 --> next --> indic.location Mpaswin.exe ..---> next creat name project file ..next --->add file asm..--> completed after ....project open file project...---> make ------> error !! __________________ paris (france)

14th July 2009, 01:09 PM	#24
seti75	16f877 --> he died ? __________________ paris (france)

14th July 2009, 03:18 PM	#26
birdman0_o	Pourquoi esce que vouz utilisiez un oscillateur externe? Why are you using an external oscillator? __________________ Mike My website: www.ElectroBird.net

14th July 2009, 03:39 PM	#28
seti75	my lcd http://www.selectronic.fr/upload/pro...nique/2337.pdf a real say j' board many programs for 16F877 n'ais I never had a successful figure ! I do not know if this is the 16F877 or lcd that has a problem ? how to say that c' is the 16f877 which has a prbléme or the lcd which has a problem? thank be80be ? ---> Imageshack - schematic __________________ paris (france)

14th July 2009, 03:48 PM	#29
be80be	You building this on a solder less bread board right try two things first clip a gnd on the OSC to gnd see if that works If not remove c5 and c4 and see if that works __________________ Burt http://mybe80be.com http://stores.shop.ebay.com/mybe80be__W0QQ_armrsZ1

14th July 2009, 03:50 PM	#30
Chippie	Alors, I have found my issue of EP numer 265.....Sadly that issue is no longer avaiable so I cant download the source code... Suffice to say, I built a project from another issue called Meleda, based on 16F84 that refused to work...So I wouldnt rule out a s/w issue... __________________ Eccentric millionaire financed by 'er indoors