Interfacing GSM module with Microcontroller – C Program

[Apache79]

 

Hi,

I am using the MC to accept and transmit the data serially. I have used port 1 as the dataport for lcd and 3 pins of port 2 as command lines for lcd. I am using the baud rate as 9600. 

Now the problem is that whenever I send any ASCII codes from the computer to the MC or vice versa, the codes get changed.

For example,

for ascii codes 0 to 47 (decimal) the codes increments by 32. i.e 0 to 47 becomes, 32 to 79 (decimal)
but from 48 (decimal), the code gets incremented by 64. i.e 48 becomes 112, 49 becomes 113 n so on


Any help on the above matter will be highly appreciated,

Thank You

[phanindra nath]

i think the issue must be with the BAUD RATES mismatch or SCON is not configured correctly.  check once!

[Syed Aameer]

PLease Add your code..otherwise how come we will know!!!!

[Author]

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