hi
I am testing LEDs with AT89S51 P1 pins .
Could I just connect P1.0 and P1.1 pins by 2 LEDs , or should I connect all P1.x pins ?
Should I connect RST pin ? Could I just connect Vcc and GND pins ?
I set P1 = 0x02 but get both LEDs on , not only P1.1 LED , do you know what's wrong ?
Thank for your guiding .
View all questions in Keil forum