{"id":222,"date":"2010-02-22T16:56:52","date_gmt":"2010-02-22T22:56:52","guid":{"rendered":"http:\/\/dmartenson.dc.multitech.prv\/developer\/?page_id=222"},"modified":"2018-04-17T15:28:39","modified_gmt":"2018-04-17T20:28:39","slug":"how-to-recover-in-case-bootstrap-or-uboot-is-corrupted","status":"publish","type":"page","link":"https:\/\/www.multitech.net\/developer\/software\/corecdp\/appendix\/how-to-recover-in-case-bootstrap-or-uboot-is-corrupted\/","title":{"rendered":"Bootstrap\/U-Boot Recovery"},"content":{"rendered":"

NOTICE: The following information is for the MTCDP (CoreCDP) line of products and NOT the MTCDT Conduit.<\/strong><\/p>\n

To be able to perform a bootstrap or U-Boot recovery, you must install a jumper. This jumper will enable the updating of the U-Boot area. This should only be necessary, if the Bootstrap or U-Boot memory area is corrupted from a failed flash.<\/p>\n

\n\n\n\n\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
R0.0<\/strong><\/td>\nR1.0<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The area outlined is ‘red’<\/strong><\/span> will be referenced throughout this article.<\/p>\n<\/div>\n

Hardware Modification<\/h3>\n
\n\n\n\n\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
R0.0<\/strong><\/td>\nR1.0<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Original hardware with no modification.<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
R0.0<\/strong><\/td>\nR1.0<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Modified hardware with jumper installed.<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
R0.0<\/strong> – Power off the device, remove the jumper and power on the device.<\/td>\nR1.0<\/strong> – Power off the device, install the jumper and power on the device.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Action needed to disable NAND Flash<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
R0.0<\/strong> – Install the jumper.<\/td>\nR1.0<\/strong> – Remove the jumper.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Action taken after unit is powered up<\/p>\n<\/div>\n

<\/div>\n

Installing Atmel SAM-BA Utility<\/h3>\n

Download Atmel SAM-BA utility and unzip onto your Linux development system:<\/p>\n

http:\/\/www.atmel.com\/tools\/ATMELSAM-BAIN-SYSTEMPROGRAMMER.aspx<\/a><\/p>\n

Connect USB cable between Linux system and the MTCDP hardware and perform USB CDC Serial driver mount procedure:<\/p>\n

Ubuntu 9.10 and older releases<\/h5>\n
    \n
  • Login with administrator rights<\/li>\n
  • Unload usbserial and cdc_acm module if it is already running<\/li>\n
    \r\n# rmmod cdc_acm\r\n# rmmod usbserial\r\n<\/pre>\n
  • Load usbserial kernel module<\/li>\n
    #modprobe usbserial vendor=0x03eb product=0x6124<\/pre>\n
  • Verify that the USB connection is established<\/li>\n
    #lsusb -d 03eb:6124<\/pre>\n
  • Know which USB connection is established<\/li>\n
    #dmesg\r\n...\r\nkernel: usb 4-2: new full speed USB device using uhci_hcd and address 5\r\nkernel: usb 4-2: configuration #1 chosen from 1 choice\r\nkernel: usbserial_generic 4-2:1.0: generic converter detected\r\nkernel: usbserial_generic: probe of 4-2:1.0 failed with error -5\r\nkernel: usbserial_generic 4-2:1.1: generic converter detected\r\nkernel: usb 4-2: generic converter now attached to ttyUSBx<\/pre>\n
  • You will have to use \/dev\/ttyUSBx<\/code> to connect to your board<\/li>\n<\/ul>\n
    Ubuntu 10.04 and newer with updated kernel<\/h5>\n
      \n
    • If you are using a 64-bit system, ensure 32-bit libraries are installed<\/li>\n
      sudo apt-get install ia32-libs<\/pre>\n
    • Check that the ACM device was detected and check the port name<\/li>\n
      \r\n#dmesg\r\n...\r\nkernel: usb 4-1: new full speed USB device using ohci_hcd and address 2\r\nkernel: usb 4-1: configuration #1 chosen from 1 choice\r\nkernel: cdc_acm 4-1:1.0: This device cannot do calls on its own. It is not a modem.\r\nkernel: cdc_acm 4-1:1.0: ttyACM0: USB ACM device\r\nkernel: usbcore: registered new interface driver cdc_acm\r\nkernel: cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters\r\n  <\/pre>\n
    • Use \/dev\/ttyACMX<\/code> to connect to your board<\/li>\n<\/ul>\n
      Running Atmel SAM-BA Utility<\/h3>\n
      # .\/sam-ba<\/pre>\n
        \n
      • Select your board as at91sam9g20-ek and click Connect<\/li>\n
      • Select the “NandFlash” tab\n
          \n
        • Select the “Enable NandFlash” script and Execute<\/li>\n
        • Make sure the script executed successfully, otherwise the following steps will fail<\/li>\n<\/ul>\n<\/li>\n
        • To program bootstrap, do the following:\n
            \n
          • Select the “Send Boot File” script and execute\n
              \n
            • Select the bootstrap file to program<\/li>\n
            • Make sure bootstrap is programmed successfully.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
            • To program u-boot, do the following:\n
                \n
              • Set the address to 0x20000\n
                  \n
                • Open and Select “Send File Name” and open the uboot bin file<\/li>\n
                • Click on Send File<\/li>\n
                • Make sure uboot bin file is programmed successfully. Click on Compare Sent File with Memory to make sure they match.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
                  NOTICE: The following information is for the MTCDP (CoreCDP) line of products and NOT the MTCDT Conduit. To be able to perform a bootstrap or U-Boot recovery, you must install a jumper. This jumper will enable the updating of the U-Boot area. This should only be necessary, if the Bootstrap or U-Boot memory area is […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":318,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"class_list":["post-222","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/pages\/222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/comments?post=222"}],"version-history":[{"count":70,"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/pages\/222\/revisions"}],"predecessor-version":[{"id":238,"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/pages\/222\/revisions\/238"}],"up":[{"embeddable":true,"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/pages\/318"}],"wp:attachment":[{"href":"https:\/\/www.multitech.net\/developer\/wp-json\/wp\/v2\/media?parent=222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}