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LP-AM243: 怎么写代码对am243的Cortex-R5的调试寄存器进行配置

Part Number: LP-AM243

怎么写代码对am243的Cortex-R5的调试寄存器进行配置?我想设置调试寄存器让程序单步运行,应该怎么写代码设置?用mrs和msr的指令不行,是不是要用映射寄存器啊?