hi, i am facing problemas on using the sample code given by Cytron, i dont succed to send message, i always receive error on LCD, after sending the first AT comand. i don tknow if the problem is becouse i am using a 4MHz crystal.
but i think it can be changed i value of SPBRG, I am not using GSM modem of Cytron i am using GSM SIM900.
i need a help.