Part Number: DAC81416EVM
Hi,
I am using teensy 4.1 controller to initiate SPI communication with the DAC 81416 EVM board and send the values '65535' and '0' to DAC channel 0.
The connections are as follows:
Teensy Pin 6 (CS) - J8.2
Teensy Pin 11 (SDI) - J8.4
Teensy Pin 12 (SDO) - J8.3
Teensy Pin 13 (SCLK) - J8.8
Teensy Pin 6 (3.3V) - J8.5
Teensy GND - J8.6
On J7 I give power supply as follows:
J7.3 - GND
J7.5 - VCC/VAA - 5 V
J7.6 - VSS - -15 V
J7.7 - VCC - +15V
The jumper configurations on the EVM board are as follows:
J2 - Open
J3 - Open
J9 - Closed
J10 - 1-2: 3.3 V on J8.5 (from teensy 4.1)
J11 - 1-2: VREF from REF5025
J12 - 2-3: VSS on J7.6 (-15 V)
I am using the following code:
***********************************************************************************************************************
I can see the SPI signals when I check it on the testpoints TP6,7,8,10.
But I do not see any outut on the DAC channels.
Attached here also the screenshot of the logic analyser's output (where the addresses and values are not coming out accurate, for some reason)
Please let me know why this issue is occuring.
Thank you :)