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interfacing between labview and microcontroller using rs 232

hi my task is to generate a wavefrom of certain frequency and certain duty cycle in labview and feed it to pic18f452 microcontroller and the o/p of microcontroller when connected to CRO should display the same frequency and duty cycle which was fed from labview.
for that when i am sending decimal data from labview microcontrolle is receiving ascii data for eg 62(decimal) gives 36 and 32 respectively in microcontroller registers and when i use type cast function and convert the decimal data into ascii data and then sending it to uc it gives hex o/p so i am confused that how to solve this problem

pls guide me

thanks
satish

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