Bootstrap — System startup
The BMS signal to the CPU controls the initial system bootstrap selection. This is used in conjunction with the OTP (FUSE) on-chip configuration, and reset “input” pin state, to select the boot source for the CPU.
Table 257.1. BMS signal
The embedded (on-chip) |
The application installed on the EBI_CS0 device is executed
in-situ. The on-chip |
The “Standard Boot Strategies” section of the SAMA5D3 Series Datasheet provides details about the boot sequence configuration, and should be read in conjunction with this documentation.
The hardware platform documentation should be read in conjunction with this generic SAMA5D3 CPU documentation with regards to specific jumper settings that may affect the bootstrap code executed.
For some designs directly booting from an
memory-mapped device is the simplest option. However, making use of
RomBOOT world to load a small
second-level boot loader allows the easier possibility of providing
support for in-field upgrades and selection of multiple application
|2022-03-29||eCosPro Non-Commercial Public License|