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FPG Sample code for Thermocouple

idata
Community Manager
1,129 Views

I am interested in attaching a type K thermocouple to the Aero board via one of the FPGA ADC pins (via a custom 80 pin expansion cable).

(1) Is there an FPGA sample that shows how to configure it to do this ?

(2) The Thermocouple (Type K) I am using has a range of -6.5 Millivolts to 55 Milivolts. Is the Max 10 FPGA up to the task of sampling such low Milivolts ?

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1 Solution
idata
Community Manager
174 Views

Hello irieblue,

 

 

Thank you for your interest in the Intel Aero Compute Board.

 

 

Here are the answers to your questions:
  1. Yes, you can configure the FPGA ADC pins using https://github.com/intel-aero/intel-aero-fpga/tree/master/aero_sample/adc these samples. I would also recommend checking out https://github.com/intel-aero/meta-intel-aero/wiki/95-(References)-FPGA# fpga-sample-configuration this page.
  2. By looking at the MAX10 https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/max-10/m10_datasheet.pdf datasheet, pages 4 to 6, you can see that the voltage specifications are measured in Volts, not milivolts.
Please let me know if you have further questions!

 

 

Best regards,

 

Eliza

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3 Replies
idata
Community Manager
175 Views

Hello irieblue,

 

 

Thank you for your interest in the Intel Aero Compute Board.

 

 

Here are the answers to your questions:
  1. Yes, you can configure the FPGA ADC pins using https://github.com/intel-aero/intel-aero-fpga/tree/master/aero_sample/adc these samples. I would also recommend checking out https://github.com/intel-aero/meta-intel-aero/wiki/95-(References)-FPGA# fpga-sample-configuration this page.
  2. By looking at the MAX10 https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/max-10/m10_datasheet.pdf datasheet, pages 4 to 6, you can see that the voltage specifications are measured in Volts, not milivolts.
Please let me know if you have further questions!

 

 

Best regards,

 

Eliza
idata
Community Manager
174 Views

Thanks for the FPGA docs. It looks like the minimum granularity of 0.5 volts (500 mili volts), won't work unless I amplify the signal .

idata
Community Manager
174 Views

Hello irieblue,

 

 

Yes, this is correct.

 

 

Best regards,

 

Eliza
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