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The problem about overlayRAM

Question asked by 晓倩 孟 on Oct 9, 2019

Hello, could you please have a look at this project?

MCU:MPC5744P

In the project,Mea_a = Cal_a + 1 and i enable the overlayRAM。

I directly operated on the RAM address and marked the value of Cal_a in RAM as 0x15. After running several loops, the program checked the value of mirror flash and the value of flash 。The value of mirror flash changed and the value of flash remained unchanged. But  why the value of Mea_a did not change?

 

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