OMAP DSP starting vector

Jun 23, 2010 3 Replies
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On TI OMAP-L138 DSP, there is a system register which contains "DSP reset vector" (HOST1CFG::DSP_ISTP_RST_VAL). For some reason, the lower



10 bits of this register are set to 0.

Is this the address from which the DSP starts executing, or is this a pointer to memory location from which the DSP reads the starting address?



I couldn't find any explanation in the docs. Presented this question to support; no answer.



VLV


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A

According to page 167 in SPRUGM7D (OMAP-L138 Applications Processor System: Reference Guide, April 2010) these bits are reserved.

Maybe page 269 in SPRUGM7D gives a clue.

bye Andreas

Andreas Hünnebeck | email: acmh@gmx.de ----- privat ---- | www : http://www.huennebeck-online.de Fax/Anrufbeantworter: 0721/151-284301 GPG-Key: http://www.huennebeck-online.de/public_keys/andreas.asc PGP-Key: http://www.huennebeck-online.de/public_keys/pgp_andreas.asc
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Reserved for what? It is supposed to be a 32-bit field. It could be dword aligned, but why 10 bits?

Been there, looks very confusing to me. As I can see, you are not sure about the answer either.

VLV

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Am 23.06.2010 15:52, schrieb Vladimir Vassilevsky:

Oh come on, you surely know better than to ask that. It's reserved for some other purpose than the current chip's documented usage. Could be reserved for future use, reserved for factory internal testing, or whatever. The crucial bit is that it's none of our business to worry about it.

Because.

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