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PSoC 5, 3 & 1

Anonymous
Not applicable

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.

   

   


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1 Solution
Bob_Marlowe
Expert II

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

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5 Replies
ETRO_SSN583
Esteemed Contributor

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.

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Bob_Marlowe
Expert II

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

View solution in original post

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Anonymous
Not applicable

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. 

   

   
        
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Anonymous
Not applicable

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. 

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Bob_Marlowe
Expert II

Good to hear from you that your issue is solved!

   

 

   

Bob

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