I have some questions about E3845's minimum DTS

[JLee153]

Hello

I use E3845 (Baytrail-I) processor.

I had some temperature tests....

this test is Low temperature test...

The following measurement results were obtained.

After booting, DTS did not change for about 10 minutes.(38:08 ~ 48:09)...

temperature measure time after boot

temperature sensor adjacent to the CPU (ºC) 

measured CPU temperature (ºC) 

DTS value

Wed Nov 15 11:38:08.270 2017-35.50-9119 (0x77)Wed Nov 15 11:38:23.982 2017-34.50-9119 (0x77)Wed Nov 15 11:38:47.806 2017-33.50-9119 (0x77)Wed Nov 15 11:39:12.205 2017-32.50-9119 (0x77)Wed Nov 15 11:40:34.494 2017-30.00-9119 (0x77)Wed Nov 15 11:41:01.840 2017-29.00-9119 (0x77)Wed Nov 15 11:44:51.742 2017<td style...

[CarlosAM_INTEL]

Hello, JCLee:

Thank you for contacting Intel Embedded Community.

The information that may help you is stated on page 4 of the https://www.intel.com/content/dam/www/public/us/en/documents/platform-briefs/atom-processor-e3800-platform-brief.pdf Intel(R) Atom(TM) Processor E3800 Product Family Platform Brief document # 329621.

We hope that this information may help you.

Best regards,

Carlos_A.

[JLee153]

Hello Carlos_A:

Thank you for your reply.

I know working temperature for E3845(Baytral-I) (-40 ~ 110)

So, I tested from -40 degrees.

Working is fine. but Read out temperature remain fixed for about 10 minutes.(-9 degrees).....

So, I want to knows minimum reportable temperature...

Please check the red underline below again.

So, What is the minimum reportable temperature for E3845 (BayTail-I) ?????????

Regards,

JC

[JLee153]

Please check my logs....

[JLee153]

I refer to the following.

Attach documents and programs I have used.

[CarlosAM_INTEL]

Hello, JCLee:

Thanks for your updates.

Based on your previous communications, could you please tell us if this request is related to a technical problem? In case that it is correct, could you please give us a detailed description of the issue?

Thanks again for your cooperation to solve this inconvenience.

Best regards,

Carlos_A.

[JLee153]

Hello Carlos_A:

Thank you for your reply.

I want to know if my test results are the minimum reporting temperature supported by Intel.

Are there any technical ways to read lower temperatures than the test results?

I could not find any way to set the DTS range or limit.

I would like to be offered technical ways to read lower temperatures than the test results.

If there is no way to read a lower temperatures than the test result,

is the test result value, -9 degrees, the minimum reportable temperature of the Intel E3845 (Baytrail-I)?

Best regards,

JCLee.

[JLee153]

The parts that can not be understood technically are as follows.

As shown below, the mask of "Readout" is 0x7F (bits 22:16).

0x7F has a value of 127.

Thus, DTS seems to be possible up to 127.

However, in the test result, the DTS value is output only to 119 (0x77).

I wonder why DTS from 120 (0x78) to 127 (0x7F) is not output.

[CarlosAM_INTEL]

Hello, JCLee:

Thanks for your update.

We suggest you address this request by filling out the https://plan.seek.intel.com/us_en_embedded_registration-form-contactsaleswebform_html Contact Sales form.

We hope that this information may help you.

Best regards,

Carlos_A.