FT2232H and NeoPixel

FT2232H_neopixel.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "\n",
    "## Import libftd2xx and others"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    ":dep libftd2xx\n",
    ":dep convert-base\n",
    "use convert_base::Convert;\n",
    "use libftd2xx::{Ftdi, FtdiCommon, BitMode};"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## open FTDI FT2232H"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Device information: DeviceInfo { port_open: true, speed: None, device_type: FT2232H, vendor_id: 0x0403, product_id: 0x6010, serial_number: MLTS90A, description: FT2232H MiniModule A }\n"
     ]
    }
   ],
   "source": [
    "let mut ft = Ftdi::new()?;\n",
    "//let mut ft = Ftdi::with_serial_number(\"MLTS91A\")?; //use FTDI \n",
    "let info = ft.device_info()?;\n",
    "println!(\"Device information: {:?}\", info);"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### **defered** "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ft.close()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Neopixel functions"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "fn make_byte(a :u8) -> Vec<u8>{\n",
    "    let mut b = Convert::new(255,2); //color value to binary\n",
    "    let mut out = b.convert::<u8,u8>(&[a]);\n",
    "    out.resize_with(8,Default::default);//pad with zero to 8-BIT \n",
    "    out.reverse(); //MSB..LSB\n",
    "    \n",
    "    let mut k = Vec::new();\n",
    "    for x in out.chunks(2){ //every 2-bit to one SPI byte\n",
    "        match x {\n",
    "            [0,0] => k.push(0x88),\n",
    "            [0,1] => k.push(0x8C),\n",
    "            [1,0] => k.push(0xC8),\n",
    "            [1,1] => k.push(0xCC),\n",
    "            _ =>(),\n",
    "        }    \n",
    "    }\n",
    "    k\n",
    "}\n",
    "\n",
    "fn make_grb(g:u8,r:u8,b:u8)->Vec<u8>{\n",
    "    [make_byte(g),make_byte(r),make_byte(b)].concat()\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[136, 136, 200, 200, 136, 136, 200, 200, 136, 136, 200, 200]"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "make_grb(10,10,10)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Send SPI to Neopixel"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "const MOSI:u8 = 0x02u8; //AD1\n",
    "const SCK:u8 = 0x01u8; //AD0"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [],
   "source": [
    "ft.set_bit_mode(0, BitMode::Mpsse);\n",
    "ft.write(&[0x8A, 0x86,11,0]); //400ns per bit"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "one pixel RGB => 12 bytes SPI"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "Ok(())"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "ft.write(&([vec![0x80,0,MOSI+SCK,0x11,11,0],make_grb(10,10,0)].concat()))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "three pixels => 36 bytes SPI"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "Ok(())"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "ft.write(&([vec![0x80,0,MOSI+SCK,0x11,35,0],make_grb(10,0,0),make_grb(0,10,0),make_grb(0,0,10)].concat()))"
   ]
  }
 ],
 "metadata": {
  "@webio": {
   "lastCommId": null,
   "lastKernelId": null
  },
  "kernelspec": {
   "display_name": "Rust",
   "language": "rust",
   "name": "rust"
  },
  "language_info": {
   "codemirror_mode": "rust",
   "file_extension": ".rs",
   "mimetype": "text/rust",
   "name": "Rust",
   "pygment_lexer": "rust",
   "version": ""
  },
  "toc": {
   "base_numbering": 1,
   "nav_menu": {},
   "number_sections": true,
   "sideBar": true,
   "skip_h1_title": false,
   "title_cell": "Table of Contents",
   "title_sidebar": "Contents",
   "toc_cell": false,
   "toc_position": {},
   "toc_section_display": true,
   "toc_window_display": false
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}