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CC2745R10-Q1: Restrictions for ”DSP Extensions”

Part Number: CC2745R10-Q1

Tool/software:

Hi,

We got a build error with the DSP Extension disabled.

The error message is as follows: 

 Error[Lt069]: The module AESCMACLPF3.c.obj(secure_drivers_cc27xx.a) (and 155 more) has DSP-support enabled, but the current CPU does not.

Build Environment:

 ・IAR 9.60.3

 ・simplelink_lowpower_f3_sdk_9_10_00_83

Here, we have three questions.

The first question, If we use the SDK libraries (drivers_cc27xx.a, etc.) in our build environment, we will use the Do we have to enable "DSP Extension"?

The next question, If and why do we need to enable the "DSP Extension"?

The final question, If there is no constraint to enable "DSP Extension", how do you resolve the build error?