{"id":126,"date":"2014-07-16T22:33:44","date_gmt":"2014-07-16T19:33:44","guid":{"rendered":"http:\/\/gronlier.fr\/blog\/?p=126"},"modified":"2020-03-30T12:43:45","modified_gmt":"2020-03-30T09:43:45","slug":"usbee-ax-pro-reprogramming","status":"publish","type":"post","link":"https:\/\/gronlier.fr\/blog\/2014\/07\/usbee-ax-pro-reprogramming\/","title":{"rendered":"USBee AX Pro reprogramming"},"content":{"rendered":"<p>I bought a <a href=\"http:\/\/sigrok.org\/wiki\/MCU123_USBee_AX_Pro_clone\">MCU123 USBee AX Pro clone<\/a> on <a href=\"http:\/\/www.dx.com\/p\/logic-analyzer-w-dupont-lines-and-usb-cable-for-scm-black-148945\">dx.com<\/a> which is very similar to a Saleae Logic.<\/p>\n<p><a href=\"http:\/\/gronlier.fr\/blog\/2014\/07\/usbee-ax-pro-reprogramming\/usbee_ax_clone\/\" rel=\"attachment wp-att-128\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-128\" src=\"http:\/\/gronlier.fr\/blog\/wp-content\/uploads\/2014\/07\/usbee_ax_clone.png\" alt=\"usbee_ax_clone\" width=\"120\" height=\"120\" \/><\/a><\/p>\n<p>To use it with the Saleae software, the VID\/PID need to be reprogrammed.<\/p>\n<p><!--more--><\/p>\n<p>The procedure is well explained <a href=\"http:\/\/www.jwandrews.co.uk\/2011\/12\/saleae-logic-analyser-clone-teardown-and-reprogramming\/\">here<\/a> if you have a windows. If you have a Linux, continue to read.<\/p>\n<p>As explained in the windows version of this tutorial, you have to flash the device with a special firmware that enables to read\/write the eeprom where the VID\/PID are stored.<\/p>\n<ul>\n<li>Install and compile some tools<\/li>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true \">$ sudo aptitude install fxload\r\n$ sudo aptitude install libusb-1.0-0-dev\r\n$ git clone https:\/\/github.com\/ribalda\/fx2eeprom.git\r\n$ cd fx2eeprom\r\n$ make\r\n<\/pre>\n<ul>\n<li>Identify the USB bus and device numbers<\/li>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true\">$ lsusb\r\n...\r\nBus 001 Device 017: ID 08a9:0014 CWAV Inc. USBee AX-Pro\r\n...<\/pre>\n<ul>\n<li>\u00a0 Flash the device<\/li>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true\">sudo fxload -D \/dev\/bus\/usb\/001\/017 -t fx2lp -I vend_ax.hex<\/pre>\n<ul>\n<li>Read the first 8 bytes from the eeprom<\/li>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true\">sudo .\/fx2eeprom r 0x08a9 0x0014 8 &gt; eeprom.dat<\/pre>\n<ul>\n<li>\u00a0Edit the VID\/PID from the dump with your favorite hex editor\n<ul>\n<li>Before edition<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true\">$ hexdump -C eeprom.dat.bak \r\n00000000  c0 a9 08 14 00 00 1b 00                           |........|\r\n00000008\r\n<\/pre>\n<ul>\n<ul>\n<li>\u00a0After edition<\/li>\n<\/ul>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true\">$ hexdump -C eeprom.dat\r\n00000000  c0 25 09 81 38 00 1b 00                           |.%..8...|\r\n00000008\r\n<\/pre>\n<ul>\n<li>Write the new eeprom<\/li>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true\">cat eeprom.dat | sudo .\/fx2eeprom w 0x08a9 0x0014 8<\/pre>\n<ul>\n<li>unplug&amp;plug your device and enjoy<\/li>\n<\/ul>\n<pre class=\"lang:default highlight:0 decode:true\">$ lsusb\r\n...\r\nBus 001 Device 019: ID 0925:3881 Lakeview Research Saleae Logic\r\n...<\/pre>\n<p>In case it doesn't work, your next step is probable <a href=\"https:\/\/www.mixdown.ca\/redmine\/projects\/mixdown\/wiki\/Cypress_CY7C68013A_running_Saleae_firmware\">there<\/a>.<\/p>\n<p>As a side note and without surprise: cheap hardware =&gt; cheap results. Don't expected to have a perfect sampling above 1Mhz. It's fine for general debugging with an Arduino or Raspberry Pi but otherwise, I'm personally waiting for Saleae to ship their new Logic Pro 8.<\/p>\n<p>&nbsp;<\/p>\n<div class='skype-share' data-href='https:\/\/gronlier.fr\/blog\/2014\/07\/usbee-ax-pro-reprogramming\/' data-lang='auto' data-style='large' data-source='WordPress' ><\/div><div style='clear:both;padding-bottom:10px;'><\/div>\n<div class=\"twitter-share\"><a href=\"https:\/\/twitter.com\/intent\/tweet?via=ticapix\" class=\"twitter-share-button\">Tweet<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>I bought a MCU123 USBee AX Pro clone on dx.com which is very similar to a Saleae Logic. To use it with the Saleae software, the VID\/PID need to be reprogrammed.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9,14,3,8],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>USBee AX Pro reprogramming - Bits and Bytes<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gronlier.fr\/blog\/2014\/07\/usbee-ax-pro-reprogramming\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USBee AX Pro reprogramming - Bits and Bytes\" \/>\n<meta property=\"og:description\" content=\"I bought a MCU123 USBee AX Pro clone on dx.com which is very similar to a Saleae Logic. 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