ADS114S08EVM: How to use Delta-Sigma ADC EvaluaTIon Software

Hi Kaede,

Regarding Q1, the ADS114S08EVM firmware does not issue the RDATA device command as you have observed.  The firmware READDATA command was added late in the firmware development and was a copy/paste from part of another function.  I did do some experimenting altering the code to use the RDATA command, but it was not released.  So currently you cannot issue an RDATA device command from the GUI.

For Q2, the DELAY unit is in milliseconds.  This is discussed in section 7.2.3.8 in the Delta-Sigma ADC EvaluaTIon Software user's guide:

http://www.ti.com/lit/ug/sbau260/sbau260.pdf

The timing is not precise as there is no way to synchronize the timing of when commands are sent to the firmware and when the firmware executes the command.  The scripts are meant to be a form of pseudo code and not precision steps.  Additional delay between commands issued within the scripts can be adjusted as given in 5.3.3 of the software user's guide.  This timing adds automatic delay between command steps without the need of issuing the DELAY command.

Best regards,

Bob B

Hi Kaede,

Unfortunately a LOOP command is not implemented in the GUI software.  Instead, you would need to cut and paste the script code for as many iterations as desired.  This may be easier to do outside of the GUI application.

Best regards,

Bob B