Hi, Not easy to explain but I'll gi ve a go.
I programed an atmega328p to read temperature and send it via USART. That worked fine untill I changed my laptop. After changing my computer (and therefore reinstalling cross-avr/gcc), then a part of a function used to read the temperature doesn't work anymore, i.e. it compiles fine but the atmega doesn't send anything via USART, the program dumps. I narrowed down the problem and it seems to be a problem when doing some calculation in a function: All variables below are declared as uint8_t The return statement below causes the program to crash: return (double) temp_LSB - 0.25 + (double)(count_per_c - count_remain) / count_per_c; The return statement below causes the program to crash also: return (double) temp_LSB - 0.25; The return statement below is OK: return (double)(count_per_c - count_remain) / count_per_c; Since it coincides with a change of computer used to compile the program I wonder if it could be a missing flag/option for cross-avr/gcc? Any advice appriciated, Thank you -- Jean-Marc
