Cammand with GSM (PIC16F877)
Tue Apr 01 2008, 12:47 pm
hi
I tried the mobile phone using hyperterminal and it works properly
and I tried an exemple with isis simalation and it works properly
but when I tried with pic in the real carte and i connect the GSM dierectly to RX and TX withe pic it doesn't work so how to connect GSM withe PIC
pleas help me
thank you.
I tried the mobile phone using hyperterminal and it works properly
and I tried an exemple with isis simalation and it works properly
but when I tried with pic in the real carte and i connect the GSM dierectly to RX and TX withe pic it doesn't work so how to connect GSM withe PIC
pleas help me
thank you.
Tue Apr 01 2008, 02:15 pm
there must be some problem with your hardware then..
try to program your PIC with a simple UART program to check if you UART is working properly or not.
try to program your PIC with a simple UART program to check if you UART is working properly or not.
Tue Apr 01 2008, 09:37 pm
send 'a' continuously to UART, and see its output on hyperterminal. If you can see continuous string of 'a' then your serial circuit is working fine.
Sat Apr 12 2008, 04:27 am
hi
I am working with proteus simulation and my application work correctly but in the pratique reel carte it work for 2 secondes and the phone wil apear SEARCHING NETWORK
and the programme bloked I put the reset button after it work for 2 secondes and the phone wil apear SEARCHING NETWORK I connect the phone pins directly to the pic pins
phone pic
RX TX
TX RX
GND GND
OSC=8MHZ
please help me thankyou
I am working with proteus simulation and my application work correctly but in the pratique reel carte it work for 2 secondes and the phone wil apear SEARCHING NETWORK
and the programme bloked I put the reset button after it work for 2 secondes and the phone wil apear SEARCHING NETWORK I connect the phone pins directly to the pic pins
phone pic
RX TX
TX RX
GND GND
OSC=8MHZ
please help me thankyou
Sat Apr 12 2008, 12:04 pm
there is something wrong with your program, you might be sending some command which is causing the phone to go in search mode..
recheck your program, if you are using assembly then check if you missed out any RET instruction.
recheck your program, if you are using assembly then check if you missed out any RET instruction.
Sat Apr 12 2008, 03:31 pm
hi
but the programme work with proteus similation what happened in the pratique?
but the programme work with proteus similation what happened in the pratique?
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