Segemtation Fault while trying to acess WeimNor memory in QT

[nishad_kamdar]

Hi all,

I have a custom board having iMX6q processor and i am using Ltib L3.0.35_4.1.0

i have a Weimnor connected to it, at the base address 0x08000000.

I am able to read and write to it using memtools. However when i write try reading the same memory location using QT application,  it gives me a Segmentation fault.

I guess it does not allow me to access the location. Can anyone suggest how i can read the Weim Nor flash using the Qt?

I have attached the Qt code.

Help would be appreciated.

regards,

nishad

Original Attachment has been moved to: mainwindow.cpp.zip

[fabio_estevam · Accepted solution]

The NOR flash should be probed under /dev/mtdx block. In order to read/write in userspace you should open a file descriptor that points to the correct node and then perform read/write operations into the NOR flash: For example:

cat  file.bin > /dev/mtd0

Regards,

Fabio Estevam