PLIZ CHECK MY SCHEMATIC,pic16f84->max232->gsm phone

[dumato52]

I have found that i can use DLR3 cable, trying to look for and test
regards
dumato

[dumato52]

When i connnect the phone to the PC and test the cable with hyperterminal, there is no response thats no ERROR or OK, what could be the problem,
I used the following commands at the hyperterminal,

AT
I expected OK or ERROR but its blank
AT+CPIN?
I expected +CPIN? READY OR ERROR but blank also

Could it be the cable?, PC or settings of PC, pliz guide me.
regards
dumato

[Ioannis]

A million reasons!

Maybe the baud rate?

Ioannis

[dumato52]

Thankyou Ioannis; i have tried to change the baud rates but still no response.
regards
dumato

[Ioannis]

Usually the baud is at 9600 by default.

Also USB to Serial converters may pose an issue sometimes.

Ioannis

[dumato52]

When i compile my code i generate HEX file of 3KB which cant fit PIC16F84, since its limit is 1KB is there a way i can compress it and load it into pic16f84
regards

[Ioannis]

No!

Ioannis