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The GDU module can not work

Question asked by 玉涛 冯 on Jun 12, 2018
Latest reply on Jun 19, 2018 by Daniel Martynek



I am using a PC9S12ZVML12MKH (maskset:0N06E)for a sensorless BLDC application.

When I downloaded the code into MCU and did single-step debugging,the initGDU program cannot work and all of GDU registers cannot be changed. But when the code is downloaded into development board ( S12ZVML-MINIBRD), the GDU registers can be changed. I cannot find some errors in my designed circuit board.

Have you encountered this situation?

Can you give me some advice about it?