Now, I am using a MPC5744-DEVKIT rev E with MBDT. I encounter a strange problem.
I connected the external power supply of mpc5744. At the same time, I plugged the micro USB cable into the computer. Mpc5744 works normally (the phenomenon is that three LEDs are always on). However, when I connect the external power supply of mpc5744 and plug the micro USB cable into a 5V AC / DC adapter, the mpc5744 cannot work normally. The phenomenon is that an LED close to the micro USB terminal flashes and goes out. I also tried to use matlab + MBDT download and S32 DS download with the same program produced by MDBT to test, and the experimental results are the same. I also tried using the sample hello_world_mpc5744p project in s32 ds to do the test, and the result is also the same.
In the actual project, it is impossible to connect micro USB with the computer. MPC5744 must work independently. What power supply method can make mpc5744 work independently?
