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The SPI power domain is VIO4 and the default value is 3.3.
Could anyone tell me how to change the power from 3.3 v to 2.5V?
Is there a API can do it?
Solved! Go to Solution.
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Hello,
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
Regards,
Rashi
Rashi
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Hello,
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
Regards,
Rashi
Rashi
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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.
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Hello,
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.
Regards,
Rashi
Rashi