Khadas Docs

Amazing Khadas, always amazes you!

User Tools

Site Tools


products:sbc:vim4:development:boot-sequence

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revision Both sides next revision
products:sbc:vim4:development:boot-sequence [2022/08/21 23:59]
ruby [Default boot priority]
products:sbc:vim4:development:boot-sequence [2022/08/22 02:54]
hyphop [Default boot priority]
Line 3: Line 3:
 ====== VIM4 OS Boot Priority ====== ====== VIM4 OS Boot Priority ======
  
-VIM4 is capable of boot-up from: ''eMMC'', ''TF Card'', ''SPI-Flash''+VIM4 have possibility boot-up from : ''eMMC'', ''TF Card'', ''SPI-Flash''
  
 <WRAP info > <WRAP info >
-This page mainly introduces about the first-stage SoC boot. The second-stage OS flashing is possible for USB storage and NVMewhich depends on ''u-boot'' configurations+We talking there only about 1st stage SoC boot,  
 +next second stage OS loading possible for any other devices like USB storage's, 
 +NVMe etc ... and depends from ''u-boot'' configurations
 </WRAP> </WRAP>
  
-===== Default option =====+===== Default boot priority =====
  
-  - TF-Card <wrap important> always have highest priority</wrap>+  - TF-Card <wrap important>always highest priority</wrap>
   - eMMC   - eMMC
   - SPI-Flash   - SPI-Flash
  
-===== U-boot shell usage ===== +===== U-Boot shell usage ===== 
-We can swap the boot priority of the ''eMMC'' and ''SPI-Flash'' via the [[products:sbc:vim4:development:kbi|KBI(Khadas Boot Instructions)]] from u-boot shell+You can change the boot priority of the ''eMMC'' and ''SPI-Flash'' via the [[products:sbc:vim4:development:kbi|KBI(Khadas Boot Instructions)]] from u-boot shell
  
-Change boot priority to: ''TF-Card => eMMC => SPI-Flash''+Change boot priority to: ''TF-Card'' => ''eMMC'' => ''SPI-Flash''
  
 ```shell ```shell
Line 24: Line 26:
 ``` ```
  
-Change boot priority to: ''TF-Card => SPI-Flash => eMMC''+Change boot priority to: ''TF-Card'' => ''SPI-Flash'' => ''eMMC''
  
 ```shell ```shell
Line 31: Line 33:
  
 <WRAP important > <WRAP important >
-To make the booting priority swap take effectyou can [[#hot-apply-setting-changes-via-mcu-reboot|reboot via mcu]], or you can reboot the hardware by clicking the Reset button, or plugging the power supply or cable.+for apply setting for next bootneed reboot device by ''RESET'' button or re-plug power cable or power-off device or [[#hot-apply-setting-changes-via-mcu-reboot|reboot via mcu]]
 </WRAP> </WRAP>
  
Line 56: Line 58:
 Hold ''FUNCTION'' and short press ''RESET'' to force boot [[:OOWOW]] service from SPI-flash, and skip other boot sources Hold ''FUNCTION'' and short press ''RESET'' to force boot [[:OOWOW]] service from SPI-flash, and skip other boot sources
  
-<WRAP important>TF-card slot must be empty</WRAP>+<WRAP important>TF-card slot must be empty.</WRAP>
  
  
Last modified: 2022/08/22 03:33 by hyphop