How do you access the high speed SRAM in ARM CPUs from user-mode code on WinCE?

Question

When writing embedded ARM code, it's easy to access to the built-in zero wait state memory to accelerate your application. Windows CE doesn't expose this to user-mode applications, but there is probably a way to do it. The internal SRAM is usually used for the video buffer, but there's usually some left over. Anyone know how to do it?

Thanks, Larry B.

Answer 1

Hi Larry,

Unfortunately you can't access the high speed ram from usermode-processes.

The only way to get access to it on a WindowsCE-OS is to write a driver, map the fixed address of the TCM into the user-mode process address space and pass it to the user-mode process.