As the subject says. I'm running a 328p without crystal @8mhz. I'm manually multiplexing a 4 digit 7-segment display using timer2 interrupt. Also, i,m trying to read the ds18b20 with the OneWire library and Dallas library for conversion. Problem is that the I/O with the temp sensor is disrupting the display routine. I tried removing the ’nointerrupts()’ and pairing 'interrupts()’ in the OneWire library but then it doesn't work anymore (display is good, but i/o fails).