📝 Design of 8085 Microprocessor Based Running light

Q1. What is the primary purpose of a running light circuit using an 8085 microprocessor?

💡 Difficulty: easy | ✅ Correct: B

Q2. A designer wants a running light that repeats every 2 seconds using a 1 MHz crystal. Which reload value for the 8253 timer (mode 0) will achieve this period?

💡 Difficulty: medium | ✅ Correct: D

Q3. A designer needs a running light that repeats every 0.5 seconds using the 8255 peripheral in mode 2. If the system clock is 2 MHz, what reload value should be programmed into the timer?

💡 Difficulty: hard | ✅ Correct: D