mxp_data_sharing.ipynb

{
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  {
   "cell_type": "markdown",
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   "source": [
    "# Data Sharing\n",
    "\n",
    "http://vectorblox.github.io/mxp/mxp_guide_xilinx.html#data_sharing"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Step 1: Load the overlay"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "from pynq import Overlay\n",
    "Overlay(\"vbx.bit\").download()\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Create user function"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2882\n"
     ]
    }
   ],
   "source": [
    "from pynq.iop.mxp_data_sharing import MXP_data_sharing\n",
    "\n",
    "data_sharing_text=\"\"\"\n",
    "void data_sharing()\n",
    "{\n",
    "    int A[] = {1, 2, 3, 4};\n",
    "    int B[] = {5, 6, 7, 8};\n",
    "    int C[] = {-1, -1, -1, -1};\n",
    "\n",
    "    int vector_len = 4;\n",
    "    int num_bytes = vector_len * sizeof(int);\n",
    "\n",
    "    /* step 1 */\n",
    "    vbx_word_t *va = vbx_sp_malloc( num_bytes );\n",
    "    vbx_word_t *vb = vbx_sp_malloc( num_bytes );\n",
    "    vbx_word_t *vc = vbx_sp_malloc( num_bytes );\n",
    "\n",
    "    /* step 2 */\n",
    "    vbx_dcache_flush( A, num_bytes );\n",
    "    vbx_dcache_flush( B, num_bytes );\n",
    "    vbx_dma_to_vector( va, A, num_bytes );\n",
    "    vbx_dma_to_vector( vb, B, num_bytes );\n",
    "\n",
    "    /* step 3 */\n",
    "    vbx_set_vl( vector_len );\n",
    "    vbx( VVW, VADD, vc, va, vb );\n",
    "\n",
    "    /* step 4 */\n",
    "    vbx_dcache_flush( C, num_bytes );\n",
    "    vbx_dma_to_host( C, vc, num_bytes );\n",
    "\n",
    "    /* step 5 */\n",
    "    vbx_sp_free();\n",
    "\n",
    "    printf( \"C[] = %d, %d, %d, %d\\n\",\n",
    "             C[0], C[1], C[2], C[3] );\n",
    "    //return 0;\n",
    "}\"\"\"\n",
    "data_sharing_bin=MXP_data_sharing(data_sharing_text)\n",
    "\n",
    "     "
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Step 2. Call mxp filter\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "ename": "TypeError",
     "evalue": "call() missing 5 required positional arguments: 'vid_in', 'vid_out', 'columns', 'rows', and 'pitch'",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[0;32m<ipython-input-3-de7420124e42>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0mdata_sharing_bin\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mstart\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0mdata_sharing_bin\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mcall\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      4\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      5\u001b[0m \u001b[0mdata_sharing_bin\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mstop\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;31mTypeError\u001b[0m: call() missing 5 required positional arguments: 'vid_in', 'vid_out', 'columns', 'rows', and 'pitch'"
     ]
    }
   ],
   "source": [
    "data_sharing_bin.start()\n",
    "\n",
    "data_sharing_bin.call()\n",
    "\n",
    "data_sharing_bin.stop()\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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