"remainder of xdata"

I have a need for making a buffer, the size of which is as large as possible. I know how to do that in assembler; however, not in C. Two ways would work: 1) a pointer to the end of used xdata 2) an...
"remainder of xdata"

I have a need for making a buffer, the size of which is as large as possible. I know how to do that in assembler; however, not in C. Two ways would work: 1) a pointer to the end of used xdata 2) an...
It seems something wrong in the gitlab.arm.com/arm-reference-solutions when I building Android-OS

HI ， support sirs ， I refer to the following document ( https://gitlab.arm.com/arm-reference-solutions/arm-reference-solutions-docs/-/blob/master/docs/totalcompute/tc0/user-guide.rst#android-os-build...
Cotex M4 ---MPU. After I override a privilleged region, it seems the write permission can't be upgraded?what is wrong?

I set up a NUMBER0 region with PRIV_RO, AND NUMBER1 region override on region0 witn PRIV_RW_URO. The result is NUMBER1 still can NOT be privileged write but it can be USER read? it is the same with oter...
Cotex M4 ---MPU. After I override a privilleged region, it seems the write permission can't be upgraded?what is wrong?

I set up a NUMBER0 region with PRIV_RO, AND NUMBER1 region override on region0 witn PRIV_RW_URO. The result is NUMBER1 still can NOT be privileged write but it can be USER read? it is the same with oter...