Siemens TC35

[savnik]

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 coce never the led on portb.6 go on

DEFINE OSC 8
DEFINE HSER_TXSTA 20h
DEFINE HSER_RCSTA 90h
DEFINE HSER_BAUD 9600
DEFINE HSER_CLROERR 1

SMS:

HSEROUT ["AT" ,13,10] ' send AT to modem followed by a CR and line feed

HSERIN 5000, SMS, [WAIT("OK")] ' now wait for 5secs until OK is received however
' if it is not then goto the SMS routine again

HIGH PORTB.6 ' don't go on
pause 1000
LOW PORTB.6

end

[pedja089]

Try to connect easypic to serial port, and hyper terminal. Then you can see does pic send "AT", and will receive OK.

[aratti]

Does your easypic4 have a RS232 level converter (Max232) prior connecting it to the Siemens TC35 ? If not then you will need one.

Cheers

Al.

[savnik]

Yes, have max232.

[pedja089]

Check the configuration switches and jumpers

[savnik]

Check the configuration switches and jumpers

I have check many times.

[aratti]

In this case, check your connection Tx from your pic should go to pin 3 of your TC35 while your pic Rx should go to pin 2 of TC35 and pin 5 of TC35 should be connected to ground of your pic board.

Cheers

Al.

Edited: HSEROUT ["AT" ,13] use only CR, remove LF from your code.

[savnik]

I have use this circuit.
If i connect to hyper terminal all works fine, but if i connect to pic don't work.

[ScaleRobotics]

I don't know if it will make a difference, but you could try:

DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
DEFINE HSER_TXSTA 20h ' Enable transmit, BRGH = 0
DEFINE HSER_CLROERR 1 ' Clear overflow automatically
DEFINE HSER_SPBRG 51  ' 9600 Baud @ 8MHz, 0.16%
SPBRGH = 0
BAUDCON.3 = 1         ' Enable 16 bit baudrate generator

[aratti]

You have to change connections from max to DB9 connector.

Max pin 14 to DB9 pin 3 and Max pin 13 to DB9 pin 2 or cross the connecting cable.

Alberto

[savnik]

You have to change connections from max to DB9 connector.

Max pin 14 to DB9 pin 3 and Max pin 13 to DB9 pin 2 or cross the connecting cable.

Alberto

I try and not work