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US 2014/0181495 A1Published application
System on chip including boot shell debugging hardware and driving method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsYoung-Gun JANG, Kwang-Seol KO
Life of this patent
Estimating the term…
Abstract
A system on chip (SOC) includes a first memory configured to store a primary bootloader for providing an environment in which a boot shell is to be executed; and a processor configured to execute the primary bootloader to initialize hardware. The boot shell includes at least one instruction for debugging the hardware, and the processor executes the boot shell and debugs the hardware before a platform is loaded.
Claims20
A system on chip (SOC), comprising:
- a first memory configured to store a primary bootloader for providing an environment in which a boot shell is to be executed;
- and
- a processor configured to execute the primary bootloader to initialize hardware, wherein the boot shell includes at least one instruction for debugging the hardware, and wherein the processor executes the boot shell and debugs the hardware before a platform is loaded.
A system on chip, comprising:
- a first memory to store a primary bootloader and a boot shell;
- and
- a processor to initialize an off-chip hardware device by:
- (a) executing the primary bootloader to control an authority of the boot shell or to locate a booting device, and
- (b) executing at least one instruction in the bootshell to debug the off-chip hardware or to perform a multibooting operation before loading of an operating system.
2 more elements
A method of driving a system on chip, the method comprising:
- executing a primary bootloader to initialize hardware;
- executing a boot shell;
- determining whether a current state is a debug mode;
- and
- debugging the hardware if the current state is the debug mode, wherein the boot shell stores at least one instruction for debugging the hardware.
2 more elements
Dependencies are inferred from the claim text.