USB & SD Upgrade

1. SD card upgrade¶

The SD card upgrade function is enabled by default and supports blank chip upgrade. After the chip is powered on, if there are IPL, IPL_CUST and UBOOT in the SD card, these programs in the SD card will be loaded and run.

1.1. Build SD card upgrade package¶

make image under project, use the make_sd_upgrade_sigmastar.sh script to package the SD card upgrade package.

After packaging is completed, SigmastarUpgradeSD.bin and upgrade_script.txt will be generated in the project/image/output/images directory, as shown below. Copy these two files to the root directory of the SD card.

1.2. SD card empty upgrade¶

If you need to upgrade the blank flash, you also need to copy IPL.pcupid_nor.DDR4_3200_NTC8G_BGA2 =y.bin, IPL_CUST.pcupid_nor.DDR4_3200_NTC8G_BGA2=y.bin and u-boot.xz.img.bin file to the root directory of the SD card, and rename them to IPL, IPL_CUST and UBOOT respectively. In this way, the chip will use these three files to boot after power-on, so as to get uboot environment that can be upgraded.

1.3. Upgrade using SD card in uboot environment¶

Eject the SD card from the PC and insert it into the card slot of the board. Power on the board, press and hold Enter to enter the BootLoader command line, and execute the following command to upgrade the SD card:

# sdstar

Note: If booting from eMMC, the upgrade command is "sdstar -i 1:1". The "-i" specifies "mmc device number: partition number". Here, 0 represents the eMMC device number, and 1 represents the SD card device. The partition number defaults to 1 and does not need to be modified.

2. U disk upgrade under UBOOT¶

USB flash drive upgrade is not supported, and the user needs to manually enable the USB flash drive upgrade function.

2.1. Modify uboot configuration and enable USB upgrade function¶

After using the demo board's defconfig configuration, use make menuconfig to enable the following configuration:

location:
Command line interface
    -->Sigmastar Common commands
        -->Sigmastar usbstar command
            -->[*]usbstar

2.2. Pack the USB upgrade package and copy it to the USB disk¶

Similar to 1.1. Build SD card upgrade package, run the make_usb_upgrade_sigmastar.sh script under the project to generate SigmastarUpgrade.bin and upgrade_script.txt in the project/image/output/images directory. Copy these two files to the root directory of the USB flash drive.

2.3. Upgrade via USB flash drive in uboot¶

Then execute usbstar to upgrade the USB flash drive, and it will automatically restart after the upgrade is completed.