248 lines
17 KiB
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248 lines
17 KiB
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<h1 id="firstHeading" class="firstHeading">Working ftdi eeprom</h1>
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<h3 id="siteSub">From Milkymist Wiki</h3>
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<div id="jump-to-nav">Jump to: <a href="index.php%3Ftitle=Working_ftdi_eeprom.html#column-one">navigation</a>, <a href="index.php%3Ftitle=Working_ftdi_eeprom.html#searchInput">search</a></div> <!-- start content -->
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<p>I modifie the <i>ftdi_eeprom</i>, from the <i>libftdi-1.0</i> GIT <a href="http://developer.intra2net.com/git/?p=libftdi-1.0" class="external autonumber" title="http://developer.intra2net.com/git/?p=libftdi-1.0" rel="nofollow">[1]</a> .
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</p><p>You can first <a href="index.php%3Ftitle=Build_the_libftdi-1.0_and_new_ftdi_eeprom.html" title="Build the libftdi-1.0 and new ftdi eeprom">Build the libftdi-1.0 and new ftdi_eeprom</a>
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</p>
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<table id="toc" class="toc" summary="Contents"><tr><td><div id="toctitle"><h2>Contents</h2></div>
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<ul>
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<li class="toclevel-1"><a href="index.php%3Ftitle=Working_ftdi_eeprom.html#Change"><span class="tocnumber">1</span> <span class="toctext">Change</span></a></li>
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<li class="toclevel-1"><a href="index.php%3Ftitle=Working_ftdi_eeprom.html#Find_the_device-file"><span class="tocnumber">2</span> <span class="toctext">Find the device-file</span></a></li>
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<li class="toclevel-1"><a href="index.php%3Ftitle=Working_ftdi_eeprom.html#MM1_JTAG_Config-file"><span class="tocnumber">3</span> <span class="toctext">MM1 JTAG Config-file</span></a></li>
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<li class="toclevel-1"><a href="index.php%3Ftitle=Working_ftdi_eeprom.html#Caution_.28RESET.29"><span class="tocnumber">4</span> <span class="toctext">Caution (RESET)</span></a></li>
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</ul>
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</td></tr></table><script type="text/javascript"> if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } </script>
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<a name="Change" id="Change"></a><h2><span class="editsection">[<a href="http://milkymist.org/wiki/index.php?title=Working_ftdi_eeprom&action=edit&section=1" title="Edit section: Change">edit</a>]</span> <span class="mw-headline"> Change </span></h2>
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<ul><li> must specifie a device-file (to ensure you flash this you want)
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</li></ul>
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<pre> Syntax sample :
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./ftdi_eeprom --read-eeprom /dev/bus/usb/002/003 ftdi-backup.conf
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./ftdi_eeprom --erase-eeprom /dev/bus/usb/002/003
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./ftdi_eeprom --flash-eeprom /dev/bus/usb/002/003 ftdi-source.conf
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</pre>
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<ul><li> backup eeprom in a conf-file (more easy to edit)
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</li><li> no use of raw file (useless)
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</li></ul>
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<a name="Find_the_device-file" id="Find_the_device-file"></a><h2><span class="editsection">[<a href="http://milkymist.org/wiki/index.php?title=Working_ftdi_eeprom&action=edit&section=2" title="Edit section: Find the device-file">edit</a>]</span> <span class="mw-headline"> Find the device-file </span></h2>
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<p>Use lsusb in root :
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</p>
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<pre> (root)# lsusb
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Bus 007 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
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Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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Bus 002 Device 057: ID 20b7:0713
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Bus 002 Device 004: ID 05a9:7670 OmniVision Technologies, Inc. OV7670 Webcam
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Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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</pre>
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<p>You search for VID and PID of Milkymist JTAG, <i>20b7:0713</i>, and get the Bus ID <i>002</i> and Device ID <i>057</i>
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</p><p>On Linux, you construct the device-file name like this <i>/dev/bus/002/057</i>
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</p><p>Note : the Device ID increment if you replug the device
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</p><p><br />
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</p>
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<a name="MM1_JTAG_Config-file" id="MM1_JTAG_Config-file"></a><h2><span class="editsection">[<a href="http://milkymist.org/wiki/index.php?title=Working_ftdi_eeprom&action=edit&section=3" title="Edit section: MM1 JTAG Config-file">edit</a>]</span> <span class="mw-headline"> MM1 JTAG Config-file </span></h2>
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<p>The config-file I use <i>ftdi-source.conf</i> :
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</p>
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<pre> vendor_id=0x20b7
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product_id=0x0713
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self_powered=false
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remote_wakeup=false
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chip_type=2232H
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max_power=0
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in_is_isochronous=false
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out_is_isochronous=false
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suspend_pull_downs=false
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use_serial=false
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change_usb_version=false
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usb_version=0
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manufacturer="Milkymist"
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product="Milkymist USB JTAG/Serial"
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serial="08-15"
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</pre>
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<a name="Caution_.28RESET.29" id="Caution_.28RESET.29"></a><h2><span class="editsection">[<a href="http://milkymist.org/wiki/index.php?title=Working_ftdi_eeprom&action=edit&section=4" title="Edit section: Caution (RESET)">edit</a>]</span> <span class="mw-headline"> Caution (RESET)</span></h2>
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<p>I only test this with the 2232H of the Milkymist JTAG.
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</p><p>Use with caution.
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</p><p>If the eeprom is blank, <i>--read-eeprom</i> make a config-file with blank parameter.
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</p><p>The <i>--read-eeprom</i> command don't generate the invert en cbus parameter
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</p><p><br />
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If you break the config of the cable (your OS don't see it), you can reset with :
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</p>
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<ol><li> unplug the cable
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</li><li> put the <b>pin 1</b> of the eeprom to the <b>ground</b> (USB connector is easy)
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</li><li> plug the cable and verifie your OS found it
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</li><li> remove the shunt <b>without</b> unplug the cable
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</li><li> erase or reflash it
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</li><li> replug-it and verifie
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</li></ol>
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<h5>Views</h5>
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<h5>Personal tools</h5>
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<li id="pt-anontalk"><a href="http://milkymist.org/wiki/index.php?title=User_talk:124.244.181.48" title="Discussion about edits from this IP address [n]" accesskey="n" class="new">Talk for this IP</a></li>
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<li id="n-mainpage-description"><a href="../wiki.html">Main Page</a></li>
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