Timer vs USB_UART? | Cypress Semiconductor
Timer vs USB_UART?
Does anyone have any idea why a 16 bit fixed function timer, that interrupts about every 4s, would interfere with USB_UART operation?
I'm debugging my current boards (with a CY8C5667LTI-LP041) , which show up on Device Manager on an appropriate COM port, but will not connect to putty (and yes, I've double checked my serial settings) .
I've turned everything in code off one-by-one until USB_UART is permanently on.
With the Timer_Start(), the USB will not connect, but if I comment that out, USB will connect to putty again.
The odd thing is that I have another timer, a 32B UDB timer, that does not interfere with the USB_UART at all.
Both timers are software enabled, have dynamic periods based on software, and cause external interrupts.
Any advice would be appreciated.