DM (@Deeksha)
Boot sequence for an ARM based embedded system -2
DM walks through the concrete steps of an ARM system startup, from the reset vector to handing control to C. The post explains what the early assembly reset code must do: set system registers, initialize stacks, set up the MMU, copy .data and clear .bss, and remap the vector table into RAM for faster interrupts. It finishes with external memory bring-up and loading an OS image.
Boot Sequence for an ARM based embedded system
Deeksha draws on five years in embedded systems to introduce the ARM boot sequence used on Boot ROM based platforms. The post outlines what the Boot ROM does at reset, how it probes boot media, and when control is passed to a software bootloader. It also highlights key differences between NOR XiP and NAND RAM-loading and the need for bad-block handling.
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