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Hi all,
I use Psoc 4100S Plus CY8C4147AZI
I am using uart wake up from deep sleep, when i connect RX with TX FTDI FT232RL USB to serial, the current consumption is 3uA. When i disconnect RX (floating) with TX USB to serial, the current consumption is 2.5mA.
Could you show my mistake?
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PSoC 4 Architecture
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The drive mode of uart rx pin is 'digital high-z'. With this drive mode, the input impedance of uart rx pin is >100M Ohm, so it is very easy to couple external noise and trigger silicon wakeup frequently.
Any digital high-z pin should not be floated if port interrupt is enabled on this pin.
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The drive mode of uart rx pin is 'digital high-z'. With this drive mode, the input impedance of uart rx pin is >100M Ohm, so it is very easy to couple external noise and trigger silicon wakeup frequently.
Any digital high-z pin should not be floated if port interrupt is enabled on this pin.