hii, I am using simcom300 modem and atmels 8051 micro controller for my project. can you tell me how to interface both using rs232 and program to control modem using at commands.
i am sure about my microcontroller, its of atmels ,at89c52. i need instructions commands for ctrl+z and enter in both c and asembly language. plz send me suitable instructions.
But that's not an ARM - is it?
So why have you chosen "ARM" as the MCU Architecture/Product (or "Toolchain") for your posts??
"i need instructions commands for ctrl+z and enter"
Do you means the ASCII codes for those characters?
"in both c and asembly language"
Do you really think that ASCII codes are different in 'C' and Assembly?
Think about it: if they were different, how would the SIMCOM300 know whether your program had been written in 'C' and Assembly??