ELE2303 WORKSHOP 4 – ADC conversion Demo section How to set up an ADC; measure an analog input on the PICsimlab simulator. Problem section 1. Create your own project for a PIC18F4620 processor (assume Fosc = 10Mhz) Initialise the ADC for channel 1 (AN1), output on ports D and B Write a main program with an endless loop Read the analog value of Pot 2 (linked to AN1) Display the binary value on the LEDS. High byte to LATD low byte to LATB No delay is required Test on the PICSimLab simulator Set the speed of the simulator to 10 MHz Change the Left/right justification setting in the ADCON2 register, test again. 2. Create a conversion function (using the adc conversion code) which will read the analog value on Pot2; combine the two result register values into an unsigned integer and return it to the main program. Call that routine from the main program instead of using the adc code you had before and store the high byte to LATD and the low byte to LATB. 3. Write a new function that calls your conversion function and returns the voltage of the Potentiometer as a floating point value (instead of an unsigned). Assume the voltage is 0 to 5V fullscale. Call that routine from the main program, test using the debugger to see it returns the correct float value. 4. Alter the main program to use your conversion routine (the unsigned int version) and try to display that value on the four 7-segment LEDs. Homework section Create a new project, for the PIC18F4620 processor. Select the PICSimLab Simulator (for debugging) Complete all the parts of the workshop above..