Detailed Explanation of the Program Status Register in Cortex-M3/M4
In the development of ARM Cortex-M series processors, the Program Status Register (PSR or xPSR) is key to understanding the program’s execution state and exception handling.This article will delve into the structure of the PSR in Cortex-M3/M4, including the roles of APSR, IPSR, and EPSR, as well as practical application scenarios, helping developers accurately grasp … Read more