Psoc5 supply | Cypress Semiconductor

Psoc5 supply

Summary: 4 Replies, Latest post by zeta on 18 May 2014 02:21 PM PDT
Verified Answers: 0
Last post
Log in to post new comments.
rogers91's picture
7 posts

 Good evening,

I don't understand how to supply my PsoC at 5.5 V. When I program the component i use the USB cable , that allows also to provide power to the Psoc; the problem is that the USB provides about 4V of supply, so I see this voltage in the pins VDDA,VDDD ecc... I question, there is a method to supply the PsoC with 5.5V ?

user_14586677's picture
7646 posts

If you are using Cypress DVK you have to set the board jumpers

to 5V and in PSOC Creator open *.cydwr file in workspace window,

pick "System" tab, and set the Vdd voltages to 5.0 V. The latter sets

up the firmware in startup for the chip to make sure various chip

settings and constants are made aware of the Vdd used.


Regards, Dana.

user_78878863's picture
2553 posts

Are you talking about a specific board (e.g. the -050 series)?

USB should deliver more than just 4V, this looks like you got a rather bad (or long) cable, it should be more of 4.7V or even higher. In that case the board can not really do anything about that (apart from using a step-up converter, maybe)

If you are using are Cypress Development kit, they all come with an external power connector, where you can attach a power supply (9-12V). Then you get proper 5V (provided the jumpers on the board are set to this voltage).

rogers91's picture
7 posts

 Thanks for hte answer,

But , I have to take this 5V from an external source and then linking this to the jumper, or from an internal source in the PsoC?

user_39759791's picture
357 posts

 depends on what development kit you are using. If you are using the -050 kit you can use J10 and J11 to set up VDDD and VDDA and supply 7v-12v via the barrel conector J4 or battery via U2.

If you don't want to use external supply and work only with VUSB then you will be limited to 4.4-4.7 depending on VUSB

Log in to post new comments.