I reverse the pin 2 with pin 3 and now work.
Thank you.
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I reverse the pin 2 with pin 3 and now work.
Thank you.
I use a pic16f877a.
I will try again the max232 on easypic4 (i have test already with no success).
Thank you for the help.
I have code for AVR and for C8051 , but i don't know c language.
The pin 18 is connected to Max pin 11 and pic pin 19 is connected to max pin 12.
When connect the DB9 connection with hyperterminal and with those :
at
OK
at+creg?
+CREG: 0,1
OK
at+cmgf=1
OK
I attach all the circuit wich is assembly in one pc board
Why if i connect the DB9 connector to pc (hyper terminal) with rs232 cable all work?
I try and not work
I have check many times.
I have use this circuit.
If i connect to hyper terminal all works fine, but if i connect to pic don't work.
Yes, have max232.
I have a Siemens TC35. I can send message with hyper terminal. Also i have a easypic4 and i can connect with hyper terminal.
If i can connect the easypic4 with Siemens TC35 and use the bellow...