TMS320F28379D: Need HWBIST Registers Details

Rana,

Do you have My Secure Access for the safety collateral for this device?  I'm just trying to confirm if the HWBIST register info is in that package or not.

Best,

Matthew

Do you mean this page. other wise i dont have any other access 

Hi Rana,

The expert is out of office today, please expect a response back by tomorrow. Apologies for the inconvenience.

--Luke

Rana,

I spoke to some others, we don't give HWBIST register details, even in the my secure protected collateral.  We simply give the driver functions and run parameters to achieve different fault coverage that is in the documentation.

Can you give some more details on the need for the register information?

Best,

Matthew

ok. we want to use TMS320F28377S in our product and want to comply it with UL-1998-2/IEC-60730. So by integrating SAFE TI Libraries and Example, will we be able to get the product compliance with these standards. one some more question,

1. i want to perform STL_GPIO_compareInput and STL_GPIO_verifyOutput on same pin is it possible. 

2. if a GPIO test is performed on one pin, is it enough for whole port,

3. same for ADC, is test on one channel is enough for remaining channel of same ADC.

Rana,

Rana Jhanzaib said:

1. i want to perform STL_GPIO_compareInput and STL_GPIO_verifyOutput on same pin is it possible. 

I need to check back on this one, and go into the STL libs a bit more.  Please give me a few days to research this

Rana Jhanzaib said:

2. if a GPIO test is performed on one pin, is it enough for whole port,

This will cover the path of the single GPIO, and will validate that the path through the port is OK.  I think you would want to do this on each GPIO that is in use by your system, however.  Each GPIO has its own input/output buffer independent of one another that could fail independently.

Rana Jhanzaib said:

3. same for ADC, is test on one channel is enough for remaining channel of same ADC.

This would show that both that ADC input/channel is good as well as the sample and hold cap and the converter itself.  However, the same as GPIO it would not guarantee that other ADC inputs are good.  I think you would want to test for each ADC input in use as possible.

Best,

Matthew

ok, and what you suggest about 

My understanding is that IEC60730 Class C is achievable on this device.

Best,

Matthew

i have one more question. The safety processor requires to read some Analog variables through ADC inputs. Specifically, I am using ADC-A0/DACOUTA in the F28379D Launchpad to read an analog voltage and want to implement ADC self test to ensure that the value being read in is correct. Now when I keep this input floating, the library function STL_ADC_test passes while when the pin is connected to the source (an OpAmp output), the same test fails.  Please guide me how to pass ADC Self test using STL_ADC_test in presence of external analog signal.