Embedded System Quiz 1

Hannah is working on a project where she needs to design a device that can control the temperature of her greenhouse. An ____________ is some combination of computer hardware and software, either fixed in capability or programmable, that is specifically designed for a particular function.

In a robotics class, Nora builds a robot that has a _____________ which receives input signals, processes the input signals and generates output signals based on the processing.

How many I/O port in PIC18F458?

Write C programming for these situation: i.Set all pins in Port D as input ii.Made all pins in Port B HIGH.

What is the value of T0CON if the Timer0 settings are as below ? •16-bit timer •No pre-scaler •Internal clock (from oscillator) source •Increment on positive-edge

Find timer’s clock frequency and its period for PIC18-based systems, with the 16MHz crystal frequencies. Assume that no prescaler is used.

For TMR0H = B8 and TMR0L = 3E, calculate the time delay generated. Assume XTAL = 10MHz.

Identify the value of TMR0H and TMR0L if we want to produce time delay of 20 μs. Assume XTAL = 10MHz, 16-bit mode and no prescaler.

Find the value for T0CON if we want to program Timer0 in 16-bit mode with a prescaler of 64 and use internal clock for the clock source, positive edge.

Find the value for T0CON if we want to program Timer0 as an 8-bit mode counter, no prescaler. Use an external clock for the clock source and increment on the positive edge.