1.TZn的引脚复用
TZ1 to TZ3 are sourced from the GPIO mux. TZ4 is sourced from an inverted EQEPxERR signal on those devices with an EQEP module. TZ5 is connected to the system clock fail logic, and TZ6 is sourced from the EMUSTOP output from the CPU.
由上文知TZ1 to TZ3引脚的使用,需要先设置GIPO MUX的复用(如下)

上图在X-BAR中将GPIO12连接INPUT1
下图中,可以看到INPUT1与TZ1是直接相连的,所以TZ1配置完成

2.TZ模式配置

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