UART v2.30 no routing

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Anonymous
Not applicable

I want to use UART v2.30 at CY8C4245 TX at PIN 4.1

   

I get 'Tx_1(0)' cannot be placed at P4[1]. P4 cannot be used for routed connections.

   

What's wrong ?

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4 Replies
ETRO_SSN583
Level 9
Level 9
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Look at TRM, dedicated pin limitations.

   

 

   

Regards, Dana.

   

 

   

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HeLi_263931
Level 8
Level 8
100 solutions authored 50 solutions authored 25 solutions authored

These are the dedicated pions, meaning e.g. the fixed-function SPI component can use only certain pins. But UART is not in here. The hint you are looking for is in the architecture TRM, part 7.17:

   

 

   
Port 4 does not have a dedicated port-adapter (Port Adapter Block on page 161). Therefore, none of the port 4 pins can be routed through the DSI.  
   

hli

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ETRO_SSN583
Level 9
Level 9
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UART is part of the SCB, so makes one wonder if table incomplete. You raised indirectly

   

an interesting question. I will file a CASE on this.

   

 

   

Regards, Dana.

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RaAl_264636
Level 6
Level 6
50 sign-ins 25 sign-ins 10 solutions authored

Hi,

   

 

   

I ran into similar problems - but the UART-SCB(!) can be connected to P4.0/P4.1.

   

However, on PSoC you've to be patient with the pin settings for other components. In my case I ran into trouble because of different input level thresholds. So, if you upload your project I can take a look into it.

   

 

   

Regards,

   

 

   

Ralf

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