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PSoC™ 4 Forum Discussions

ApPo_1339236
Level 2
Level 2
5 sign-ins 10 replies posted 5 replies posted

Dear Group Members,

I am using CY8C4014SXI-421 in Touch Applications.  Due to some reasons VCCD & VSS Pins are getting shorted. What could be the problem. I have interfaced Optocoupler with Port Pin and I am controlling 24V Relay with the optocoupler. In the end I am controlling AC BULB AND AC FAN via Relay. So what is the reason of VCCD Pin and VSS Pin shorting.

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3 Replies
BiBi_1928986
Level 7
Level 7
500 replies posted 250 replies posted 250 sign-ins

Hello.

Without your schematic I'll have to guess, there is a solder short across the capacitor connected to Vccd.  This capacitor is connected between Vccd and Vss.

Good luck with your project.

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ApPo_1339236
Level 2
Level 2
5 sign-ins 10 replies posted 5 replies posted

Hello BiBi_1928986

My Button was already working at client side for 25 days. I received the button from Client Side with Shorted Pins.

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Hello.

Can you provide a screen shot of schematic showing Vccd, Vss, Vdd connections.  I do not use latest PSoC Creator so I won't be able to open project.

Can you measure the Vccd voltage on a working Button.  It should be around 1.8V.

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