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Part Number: ADS1261EVM
Other Parts Discussed in Thread: ADS1261


I'd like to know a detailed description regarding the COLLECT and COLLECTSETUP commands that the Delta-Sigma ADC Evaluation software uses. What low-level commands is it issuing to read all the samples?

  • Hi Akm Islam,

    The ADS1261EVM commands are given in Table 7 in the EVM user's guide:

    You can use a logic analyzer or scope to probe the DIN pin on the ADC if you are interested in the actual commands being sent to the ADC. Refer to section 9.5.5 in the ADC datasheet to get a list of the commands that can be issued to the ADC. You can then cross reference this table with the digital communication you see on the scope / logic analyzer


  • Yes, I saw the table in the datasheet, but I'd like to know what the actual SPI commands are that the processor sends for "COLLECT" and "COLLECTSETUP." Without using a logic analyzer, can one figure out what these commands are?

  • Hi Akm Islam,

    The COLLECT and COLLECTSETUP commands are used by the GUI for the GUI - they do not inherently have any interaction with the ADC (though the COLLECT command does eventually call the RDATA command).

    Why do you want to know what these commands do? How will this help you work with the ADS1261?

    You can also review the ADS1261 example code: This might be more useful to help you understand how the firmware communicates with the ADC, as well as allow you to adapt the code to work in your own project