AVNET SPARTAN 3A Eval KIT : No output from PSoC.

	venkatesan posted on 23 Dec 2009 2:36 AM PST 1 Forum Post

Hai,

I am working on AVNET SPARTAN 3A Evaluation KIT.
I just used a 26bit counter code in the FPGA and
I send the MS 3 bits of the counter to the PSoC.
In the PSoC , I just forward the input signal to
the output port.

The input pins of teh PSoC are P2(5), P2(7) and
P4(6) which are connected with the FPGA I/Os.
The output pins of the PSoC are P0(1), P0(3)
and p0(5) , which are connected with the
connector J9.

I am noticing the counter signal at the input
of the PSoC, But not at the Output pins.

I have given the PSoC main.c code below.
If it is required I can give the VHDL code also.

Please help me, to find out the problem
with my code.

Thank You.

Project : PSoC_pin_status.app
==============================

main.c
=======

//----------------------------------------------------------------------------
// This project echos the state of port 2 pin 5 to port0 pin 5
// This project echos the state of port 2 pin 7 to port0 pin 3
// This project echos the state of port 4 pin 6 to port0 pin 1

//
// The status of output ports follow the status of their respective input ports.
//----------------------------------------------------------------------------

#include <m8c.h> // part specific constants and macros
#include "PSoCAPI.h" // PSoC API definitions for all User Modules

void main()
{
while (1) {
if (PRT2DR & 0x20) {
PRT0DR |= 0x20;
}

if (PRT2DR & 0x80) {
PRT0DR |= 0x08;
}

Re: AVNET SPARTAN 3A Eval KIT : No output from PSoC.

	Semsem posted on 15 Aug 2010 11:55 AM PST 1 Forum Post

I think that you are not checking the input port value properly. Try the following code instead:

if ((PRT2DR &= 0x20) > 0)

{

// put the bit toggling code here.

}

Re: AVNET SPARTAN 3A Eval KIT : No output from PSoC.

	Terrence posted on 16 Aug 2010 04:12 AM PST Top Contributor 43 Forum Posts

Hi,

In PSoC Designer, first confirm that your inputs are set to "HIGH Z", not "HIGH_Z Analog".

Next, check that the output pins are set as outputs, eg, "Strong Slow".

Then to read the inputs use

while (1)
{
   if (PRT2DR & 0x20)        //if pin P2.5 is set
   {
      PRT0DR |= 0x20;         // set pin P0.5
   }
   else
{
      PRT0DR &= ~0x20;         // clear pin P0.5
}
}

This should get you started. For more on GPIO see the following url:

http://www.planetpsoc.com/component/content/article/13-basics-of-psoc-gpio.html

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AVNET SPARTAN 3A Eval KIT : No output from PSoC.

Re: AVNET SPARTAN 3A Eval KIT : No output from PSoC.

Re: AVNET SPARTAN 3A Eval KIT : No output from PSoC.