You are here

Issue on startup | Cypress Semiconductor

Issue on startup

Summary: 5 Replies, Latest post by Bob Marlowe on 01 Feb 2013 11:17 AM PST
Verified Answers: 1
Last post
Log in to post new comments.
Antoine_stancom's picture
User
3 posts

Hi everybody,



I have an issue, I haven't succeeded to solve it during my working day. ( i'm french)

I attend a sandwich course and for my project I'm working on a Cypress CY38C3246 PVI 122 ( psoc 3).

I can program it without problem With a miniprog3 

But, because there is a "but", once my Cypress is turned off during a few seconds an issue gets happened. 

Though my board is supplied, I must shortcircuit Xres with Vcc to start my cypress.



In situation:

I have connected a LED to show me that my board works.

I supply my board and the light of the LED is very weak and fix. It should blink because I have coded that.

When I shortcircuit xres on Vcc manualy, the LED blinks, it is the evidence that the Cypress works.



Does Someone have  an idea? 



Thanks in advance.

Antoine G.



 

user_14586677's picture
User
7648 posts

Are you using a custom board, if so can you post schematic ?

 

Are you sequencing supplies to the board and its peripherals properly ?

 

Or are you using a CY8C38KIT-030 ?

 

Regards, Dana.

user_1377889's picture
User
10803 posts

When the miniprog is attached to the PSoC3 a power-down and up again may lead to undesirable halts and the program not starting. Detach the miniprog3 first and with a power-up the PSoC should run.

 

Bob

Antoine_stancom's picture
User
3 posts

Thanks you for your replys.


 I clicked on "verify  answer " but it's a mistake done by me! Sorry, the answer doesn't verified  =S

I'm testing your propositions and I will go back.


thank you. 

 
Antoine_stancom's picture
User
3 posts

Thank you Bob Marlowe and Dana for your replies.

I have located my mistake. I didn't connect a condenser of 1µF on the pin VCCA of the analog regulator out. 

user_1377889's picture
User
10803 posts

Good to hear from you that your issue is solved!

 

Bob

Log in to post new comments.