Clarification on ULP co-processor REG_WR instruction

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kolban
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Clarification on ULP co-processor REG_WR instruction

Postby kolban » Thu Nov 23, 2017 4:43 am

Am now studying the REG_WR instruction as found here:

http://esp-idf.readthedocs.io/en/latest ... l-register

The docs seem to say that I can write 8 bits from a ULP regsiter into a peripheral register control structure.

However, everything I see to read on it seems to show that the 8 bits of data one supplies are constant operands on the instruction. I'm not sensing that there is a mechanism to write the value of a register into a peripheral control structure.
Free book on ESP32 available here: https://leanpub.com/kolban-ESP32

ESP_igrr
Posts: 2067
Joined: Tue Dec 01, 2015 8:37 am

Re: Clarification on ULP co-processor REG_WR instruction

Postby ESP_igrr » Thu Nov 23, 2017 5:55 am

That is correct, there is no such mechanism.

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