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unable to download progarm to S32R274

Question asked by 飞 徐 on Mar 13, 2019
Latest reply on Mar 21, 2019 by 飞 徐

hello everyone,    

i built a project based on s32r274, and before today, the whole process is OK, such as compile,download and debug. But today i changed the code somewhere i don't konw(maybe i didn't change the code), and the project is unable to download,the S32 DS  pops up the following dialog

then i measured the voltage of the power supply, they are all correct except the reset pin, the reset pin is expect to be high(3.3V),but it's low, the schematic diagram of the reset part is showing below

then i changed the second board, and it's OK when download the program first time, but when i download at the second time, the same problem arisen...

then i changed the third board, and it's OK when download the program first time,but when i download at the second time, the same problem arisen...

now i have no idear about these phenomena, if anyone kowns something about this please tell me.

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