ADS794xEVM-PDK: Software Installation
13
SBAU194B – August 2011 – Revised September 2017
Copyright © 2011–2017, Texas Instruments Incorporated
ADS794xEVM and ADS794xEVM-PDK
Step 3.
Plug the ADS794xEVM into the MMB0, as
illustrates.
Figure 7. Connecting ADS794xEVM to MMB0
CAUTION
Do not misalign the pins when plugging the ADS794xEVM into the MMB0.
Check the pin alignment carefully before applying power to the PDK.
Step 4.
Set jumper J3 on the ADS794xEVM to position 2-3 in order to set the ADS794xEVM logic
voltage to 3.3 V. The MMB0 uses 3.3-V logic to communicate with the ADS7945xEVM.
Step 5.
Set jumper J1 on the ADS794xEVM to position 2-3 in order to place the CS signal in P1.7 of
the EVM. The MMB0 sends the CS signal via P1.7.
Step 6.
Set jumper J2 on the ADS794xEVM to position 1-2 if the 4.096-V internal (onboard) reference
is used. If an external reference is used, set J2 to the 2-3 position.
CAUTION
If an external reference is used, please do not apply external reference voltage
before the power is applied to the MMB0 motherboard.
Step 7.
Set jumper J6 to match the correct type of input signal, as explained in
:
•
For dc-coupled unipolar input signals, J6 must be closed.
•
For dc-oupled bipolar input signals, J6 must be opened.
•
For ac-coupled signals, J6 must be closed.