Learning FPGAs by Justin Rajewski

Author:Justin Rajewski
Language: eng
Format: epub
Publisher: O'Reilly Media
Published: 2017-08-18T04:00:00+00:00

avr.channel = h0; // ADC set to channel 0

By setting avr.channel to 0, we will be continuously reading from A0.

We then need to instantiate the PWM module and connect it to the AVR Interface:

.clk(clk) { // The reset conditioner is used to synchronize the reset signal to the FPGA // clock. This ensures the entire FPGA comes out of reset at the same time. reset_conditioner reset_cond; .rst(rst){ // the avr_interface module is used to talk to the AVR for access to the // USB port and analog pins avr_interface avr; pwm pwm; // PWM module for the LEDs } }

Add this to the end of the always block:

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