With the ESP, a user can debug a target system by starting and stopping it, accessing registers and memory, and so on. The ROM table, used to allow auto detection of debug components inside a Cortex-M3 chip, is also explored.įor debugging PowerPC-based hardware systems, there is a tool named the Engineering Support Processor (ESP) that accesses and controls the chip via the JTAG interface.

It explains the Advanced High-Performance Bus Access Port (AHB-AP), a bridge between the debug interface module and the Cortex-M3 memory system, exploring three registers in the AHB-AP-the CSW register that can control the transfers, the TAR register that is used to specify the transfer address, and the DRW register that is used to carry out the data transfer operation. The chapter describes other trace components as well, which include the Trace Port Interface Unit and the Flash Patch and Breakpoint unit. The chapter discusses the trace system that is based on CoreSight architecture-the Data Watchpoint and Trace (DWT) components and their debugging functionalities the Instrumentation Trace Macrocell (ITM), a control register for controlling the enabling of individual features the hardware trace with ITM and DWT and the Embedded Trace Macrocell that is used for providing instruction traces. If your PC endured a “significant hardware change” making it unrecognizable, then press on.This chapter focuses on a number of debugging components used to provide debugging features such as breakpoint, watchpoint, Flash Patch, and trace that the Cortex™-M3 processor comes with, all of which can be programmed through the Cortex-M3 Private Peripheral Bus. If Windows 10 can retrieve your key from the motherboard, then there’s nothing else you need to do. Use this guide if you’re reinstalling Windows 10 without a printed or emailed product key. Reactivation will depend on the PC: Is it a pre-built system or hand-built from scratch? Reactivate Windows 10 Using a Digital License Instead, they can apply the same product key used to upgrade to Windows 10. In this case, customers don’t have a Windows 10 key, nor is a key embedded in the BIOS or UEFI. In short, you can move this license to another PC, but not indefinitely. Keep in mind that the number of activations is limited. The good news is that system builders can run the Windows 10 Update Troubleshooter to un-assign the product key from the previous PC configuration and reassign it to the new build. But a major overhaul to multiple components could make the PC unrecognizable. However, replacing a single component-such as swapping out memory sticks or upgrading a discrete GPU-typically doesn’t lock customers out of Windows 10.

Diasys hardware key