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what is the ETM: Enable Embedded Trace Module in MCB2130 ?

he hai

I wiil DIY a develop board like MCB2130 ,I don't kown what it is the function of ETM.Is it must need in this board?
thanks

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    ETM stands for "Embedded Trace Macrocell", and is a module that provides enhanced software debugging capability that some chip manufacturers might include in their product. The ETM lets you set up breakpoints to trap on writes to particular addresses, for example. Used in conjunction with fancy JTAG probes, the probes can store large amounts of execution history and even try to single step "in reverse".

    You can read all about the component at arm.com.

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    ETM stands for "Embedded Trace Macrocell", and is a module that provides enhanced software debugging capability that some chip manufacturers might include in their product. The ETM lets you set up breakpoints to trap on writes to particular addresses, for example. Used in conjunction with fancy JTAG probes, the probes can store large amounts of execution history and even try to single step "in reverse".

    You can read all about the component at arm.com.

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