Deactivating the controller with VCC still connected to +5V on PSOC 4100S

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cross mob
Anonymous
Not applicable

I am using PSOC 4100S and its mounted on my PCB with an LED driver connected to the controller. The DC to DC converter on board is powering the  controller. is there anyway by which i can deactivate the micro controller on board without disconnecting the VCC line. I tried connecting the XRES pin to ground but the controller is still active and sending signals to LED driver.

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2 Replies
Anonymous
Not applicable

Pulling the XRES pin to GND should reset/hold the unit in reset. It may end up only resetting it once.

Otherwise, you will need to use software commands or the VCC disconnection to power off the chip I would think.

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SrikanthD_56
Employee
Employee
25 sign-ins First question asked First comment on blog

In your project, after writing to LED driver (or whenever you want), try calling CySysPmStop() function to put the PSoC 4 into Stop state. See if that helps.