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en:general_information:tutorial:uboot_tools [2019/09/09 14:35] – [Customising The Config File] liedmannen:general_information:tutorial:uboot_tools [2022/05/27 14:45] – [Read U-Boot Environment] update command franzwesselmann
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 ===== U-Boot Tools ===== ===== U-Boot Tools =====
 +
 +U-Boot provides two tools to read **fw_printenv** and  edit **fw_setenv** the U-Boot environment from the Linux shell.   The U-Boot tools are selected by default in PTXdist based BSP's. This tutorial describes how to setup the configuration file and the usage of the tools mentioned above.  
  
 <WRAP round info 90%>Working with U-Boot tools requires that the U-Boot environment has been saved with the ''saveenv'' command in U-Boot, otherwise the U-Boot tools are using the default environment.\\       <WRAP round info 90%>Working with U-Boot tools requires that the U-Boot environment has been saved with the ''saveenv'' command in U-Boot, otherwise the U-Boot tools are using the default environment.\\      
 If a redundant environment is configured the ''saveenv'' command must be executed twice.</WRAP> If a redundant environment is configured the ''saveenv'' command must be executed twice.</WRAP>
  
-U-Boot provides two tools to read **fw_setenv** and  edit **fw_printenv** the U-Boot environment from the Linux shell.   The U-Boot tools are selected by default in PTXdist based BSP's. This tutorial describes how to setup the configuration file and the usage of the tools mentioned above.   
  
 ==== Customising The Config File ==== ==== Customising The Config File ====
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 == Edit U-Boot Environment == == Edit U-Boot Environment ==
 <code> <code>
-fw_setenv [parameter] [value]+setenv [parameter] [value]
 </code> </code>
  
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 This sets the value of the bootdelay paramter in your environment to 3  This sets the value of the bootdelay paramter in your environment to 3 
 <code> <code>
-fw_setenv bootdelay 3+setenv bootdelay 3
 </code>++++ </code>++++
  
  
  • Last modified: 2022/08/04 15:02