MPC5741P调试问题

[838927242]

用lauterbach调试MPC5741P，插上调试前不启动调试单片机状态正常，启动调试后，单片机无法正确反馈PIN脚寄存器的状态，具体如下：

PF10配置为输入，监测外部开关量信号，实际测试单片机引脚为高，但是启动调试后，读取寄存器的值，为0;

PF11配置为输出，启动调试后不能正常输出控制电位；

其他输入口正常！

[838927242 · Accepted solution]

Hi！

Thanks for your help !!!

I've fixed this issue!

https://community.nxp.com/t5/MPC5xxx/how-to-disable-Nexus-Function/m-p/1087521

[lukaszadrapa]

Hi,

these pins are EVTO and EVTI which can be used by debugger:

 You can find in this manual: c:\T32\pdf\debugger_mpc5500.pdf

If you want to use the pins as GPIO, turn this option off.

Regards,

Lukas