I am using ATtiny2313 microcontroller along with a RS232 to establish communication between my microcontroller and the laptop. Here's my question : What is the predefined system for the laptop to make sense of the data that i send using the microcontroller ? (i.e. what is the number of parity bits, start bits... that the laptop expects to make sense of the data ?)
I tried reading the data using python but all data reads 0xff my avr code sends a constant byte 0x01010101 every one seconds and laptop detects every new byte every 1 second. But every byte is sensed as 0xff. What could be the problem ? (i am using the screen function in the mac terminal to view the RS232 data).