Execute application code from CCM RAM using the IAR EWARM toolchain

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DocID024590 Rev 3

2.3

Executing a library (.a) from CCM RAM

EWARM allows executing a library or a library module from CCM RAM. The actions to be

executed are the following:

1.

Define the memory address area corresponding to the CCM RAM by specifying the

start and end addresses.

Figure 7. CCM RAM area definition

2.

Update the linker to copy at startup the library or the library module in CCM RAM using

the “initialize by copy” directive.

Example:

Figure 8. EWARM section initialization

3.

Indicate to the linker that the library should be placed in CCM RAM:

Figure 9. EWARM library placement

To execute a library module from CCM RAM, follow steps 1, 2 and 3 using the library

module name.