This means that misprogramming that bank can “brick” a system, Many CPUs have the ability to “boot” from the first flash bank. Common tasks include writing aīoot loader, operating system, or other data.įlashing via GDB requires the flash be configured via “flashīank”, and the GDB flash features be enabled. Often commands to manipulate the flash are typed by a human, or run Operate on the flash via flash subcommand.Passing parameters as needed by the driver. However, the documentation also uses “flash” as a generic term įor example, “Put flash configuration in board-specific files”.ĭo this in a board-specific configuration file, (SPI flash must also be copied to memory before use.) While data from a NAND flash must be copied to memory before it can be NOR flash usually supports direct CPU instruction and data bus access, This partially reflects different hardware technologies: The “nand” command works with NAND flash. The “flash” command works with NOR flash, while OpenOCD has different commands for NOR and NAND flash Next: Flash Programming, Previous: CPU Configuration, Up: Top
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