在用arm做一个小项目，板子做出来了，连上jtag就出问题了，5555~~~~。用multi-ice好像能识别芯片为arm7-tdmi,但是用axd调试的时候他说不能进入调试模式，系统提示：target processor would not enter debug state when requested.Do you want to try asserting System Reset with a breakpoint on address 0?this will affect the other processors in a multi-processor system。选择yes以后，系统提示：unable to stop target processor.Check th serve configuration matches the target system,the target is powered up,not in reset and can operate at the tck setting used。不知道这可能是什么原因引起的？我用的芯片是LPC2124，不胜感谢