LED demo using device tree overlay

dtbo_led_demo.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Demo: Using a Device Tree Overlay with the LED's"
   ]
  },
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   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/javascript": [
       "\n",
       "require(['notebook/js/codecell'], function(codecell) {\n",
       "  codecell.CodeCell.options_default.highlight_modes[\n",
       "      'magic_text/x-csrc'] = {'reg':[/^%%microblaze/]};\n",
       "  Jupyter.notebook.events.one('kernel_ready.Kernel', function(){\n",
       "      Jupyter.notebook.get_cells().map(function(cell){\n",
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       "  });\n",
       "});\n"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "from pynq import Overlay\n",
    "\n",
    "overlay = Overlay(\"base.bit\", dtbo=\"gpio_leds.dtbo\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "!insmod gpio-byu.ko"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "from pynq import GPIO\n",
    "from time import sleep\n",
    "\n",
    "led0 = GPIO(902, 'out')\n",
    "led1 = GPIO(903, 'out')\n",
    "led2 = GPIO(904, 'out')\n",
    "led3 = GPIO(905, 'out')\n",
    "\n",
    "for i in range(3):\n",
    "    led0.write(1)\n",
    "    led1.write(1)\n",
    "    led2.write(1)\n",
    "    led3.write(1)\n",
    "    sleep(.5)\n",
    "    led0.write(0)\n",
    "    led1.write(0)\n",
    "    led2.write(0)\n",
    "    led3.write(0)\n",
    "    sleep(.5)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "!rmmod -f gpio-byu.ko"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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