COM iMX6 Bootloader U-Boot: Difference between revisions
From Wiki-DB
Jump to navigationJump to search
Ageisreiter (talk | contribs) |
Ageisreiter (talk | contribs) |
||
| Line 42: | Line 42: | ||
|} | |} | ||
:Example: <code>sf write | :Example: <code>sf write 10000000 40000 10000</code> | ||
:Description: Copies 64kByte from SDRAM address | :Description: Copies 64kByte from SDRAM address 0x1000_0000 to SPI Flash address 0x4_0000 | ||
:'''SPI Flash Erase''' | :'''SPI Flash Erase''' | ||
Revision as of 11:30, 26 May 2014
FAQ
Downloads
Enter Bootloader Console
- Connect DHCOM UART1 (FF UART) via null modem cable to the RS232 Port of your PC
- 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
- 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!
