Has anybody ever had a need to connect the serial stream (both Tx & Rx) from a SCB Hardware Uart to internal logic for mux-ing demux-ing before sending to an external psoc pin? I am struggling with how to do that since the HW_UART using an SCB goes directly to psoc external pin. I could solve the problem by sending the signal back into the psoc on another pin but that would waste 2 pins.
The attachment shows what I'm trying to do...ie on the left is my HW_UART and on the right is an example of simple serial data routing logic. I basically just want to go directly from the UART into my logic without having to go off-chip. As you can see there is not a connection between the two because I don't know of a way to separate the SCB HW_UART away from the dedicated pin.
New pic is better example simplified by using simple mux/demux
I just need a method to tie Uart directly to mux/demux without going off chip?
The SCB components in a PSoC4 use dedicated pins which cannot be captured and re-routed. You can only do what you want to is using an UDB based component.
Very well. I had hopes there was a way to get around that.
We wanted to save UDB resources for other uses.
Thank you for your help