The SPI power domain cannot be changed using API.
Hardware changes need to be done to change VIO4 to 2.5 V from 3.3 V.
- VIO4 power domain need to be changed
Please let me if you are using the FX3 explorer kit? (CYUSB3KIT-003). If yes, then VIO4 is supplied with 3.3V and it cannot be changed to 2.5 V using J2 jumper or by calling API
Please let me know if any queries on this
Yes i use CYUSB3KIT-003 board.
Is it possible I rework the board to let the VIO4 change to 2.5 level?
If possible ,could you give me the rework direcion?
Thanks for your help.
FX3 Explorer kit board doesn't have 2.5 V LDO and the B11 (VIO4) pin is not brought out on the board.
The 3.3 V LDO cannot be replaced with 2.5 V as other power domains (VIO5 and CVDDQ) are supplied with 3.3 V.
You need to design a custom board for the changes (VIO4 : 3.3V to 2.5 V) needed.