Hi. I have some more questions related to the DAC161S997EVM. It was suggested to me that the board can be programmed with a different, off-EVM microcontroller. I am in the process of trying to teach a 28069 to program this board. Now that I am working with the EVM, I have the following questions:
1. I understand that, as delivered, the DAC_CUR1 / VDD jumper is set to power the device from the current loop. All good. Is there a way for me to test in "Self Powered Transmitter" mode, i.e. where the loop is not powering the DAC logic?
2. How can I tie in an external uP, through J3, to program the DAC? I was led to believe this was possible but (a) am worried about conflict with the on-board uP and (b) do not see how I control CSB through J3 or any other obvious means.
3. Comment: The DAC_CUR1 / VDD jumper silk screen is confusing. I would change "VDD" to "VDDA", as "VDD" is confusing because it is the same label as the "digital" side power.
Thank you. I had a couple of other questions that were answered by cruising the forum. Good stuff!
John