COM iMX6 Bootloader U-Boot

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FAQ

Downloads

Enter Bootloader Console

  1. Connect DHCOM UART1 (FF UART) via null modem cable to the RS232 Port of your PC
  2. Start terminal program (e.g. Tera Term) on the Host PC with the following settings:
    Baud rate: 115200
    Data: 8 bit
    Parity: none
    Stop bits: 1 bit
    Flow control: none
  3. Press "del" on the Host PC during Core Module system start to enter bootloader console

U-boot console commands

SPI Flash

SPI Flash Init
sf probe
Example: sf probe
Description: Initializes the OnBoard SPI Flash
SPI Flash Read
sf read <SDRAM address> <SPI Flash address> <Bytes>
Example: sf read 10000000 0 100
Description: Copies 256Bytes from SPI Flash address 0x0 to SDRAM address 0x1000_0000
SPI Flash Write
sf write <SDRAM address> <SPI Flash address> <Bytes>
Example: sf write 10000000 40000 10000
Description: Copies 64kByte from SDRAM address 0x1000_0000 to SPI Flash address 0x4_0000
SPI Flash Erase
sf erase <SPI Flash address> <Bytes>
Example: sf erase 40000 10000
Description: Deletes SPI Flash content from address 0x4_0000 to 0x4_FFFF
Note: The Bytes information needs to be sector size aligned!