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README for XUM Demo 4 : UART (Serial Port)

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Creator: Grant Ayers (ayers@cs.utah.edu)

Date:    26 July 2012

DEMONSTRATES

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UART, Interrupts, LCD.

DESCRIPTION

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Prints text that is received by the serial port to the LCD screen. The

screen has a blinking cursor which is toggled by the timer interrupt.

The UART utilizes a hardware interrupt to notify the processor of incoming

data. The backspace key moves the cursor backward one character.

Connect to the FPGA using 115200 Baud, 1 stop bit, no parity, and no flow

control. Use a program such as Minicom in Linux or Putty in Windows.

BUILDING AND RUNNING

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To compile, enter the 'bin' directory and update the paths in the Makefile.

Then run 'make' from within the same directory. Use the XUM bootloader to

send the resulting .xum file to the FPGA.