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4 Bytes repeating when using memcpy

Question asked by Krishna M on Feb 21, 2017
Latest reply on Jun 16, 2017 by Krishna M

Hi ,

We are using Cortex-M4(STM32F429IIH6) processor for our IOT project. We are seeing a data corruption when memcpy used, the corruption pattern was identified by feeding a Fixed pattern of size 512 Bytes from Src to Dest using memcpy, and it is not happening in all the iterations.

If you see the image attached below that Data "6 N 7 O" is replaced with 2 Bytes("Highlighted with orange color" 4L).  

Can any one tells that what can be the reason for this wired behavior? We are in a critical phase of our project.

 

Regards,

Krishna Prasad

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