All, I am trying to see the EOC output from the Cypress Example ADC to LCD. I have tied the EOC output to a digital pin so that I can check timing on an O-Scope. All I am seeing is a logic HI. I have attached a screen shot of the CYSCH file.

Any ideas.

Keith

All,

I still don't konw why the wiring of the EOC output to a pin doesn't work, .....but..... for those of you that might run into this problem, here is what I did.  I let the ADC generate an EOC interrupt, and inside the IRQ routine, I set the pin HI and LO and that seems to work.

part of main.c program

void main()
{

    CYGlobalIntEnable;           /* Enable all interrupts */
    
    ADC_DelSig_1_Start();        /* Configure and power up ADC                     */
    ADC_DelSig_1_IRQ_Enable();   /* Enable the ADC to perform an IRQ after the EOC */   
    ADC_DelSig_1_StartConvert(); /* Force ADC to initiate a conversion             */
  ........

part of ADC_DelSig_1_INT.c program (my inturrupt portion)

/*****************************************************************************
* Function Name: ADC_DelSig_1_ISR1
******************************************************************************
*
* Summary:
*  Handle Interrupt Service Routine. 
*
* Parameters: 
*  void
*
* Return:
*  void
*
* Reentrant:
*  No
*
*****************************************************************************/
CY_ISR( ADC_DelSig_1_ISR1)
{
    /***************************************************************************
    *  Custom Code
    *  - add user ISR code between the following #START and #END tags
    **************************************************************************/
    /* `#START MAIN_ADC_ISR1`  */
   
    /* toggle the output pin for testing purposes */

    LED2_Write(1);
    LED2_Write(0);
   

    /* `#END`  */
   
    /* Stop the conversion if Cnversion_Stop variable is set */
    if (stopConversion == 1)
    {
        ADC_DelSig_1_StopConvert();
    }          
   
    /* PSoC3 ES1, ES2 RTC ISR PATCH  */
    #if(CYDEV_CHIP_MEMBER_USED == CYDEV_CHIP_MEMBER_3A)
        #if((CYDEV_CHIP_REVISION_USED <= CYDEV_CHIP_REVISION_3A_ES2) && (ADC_DelSig_1_IRQ__ES2_PATCH ))     
            ADC_DelSig_1_ISR_PATCH();
        #endif
    #endif   
   
}
 

Hi Keith,

Can you please let us know the revision of the PSoC3 Silicon you are using?

Is that ES2 or ES3?

Regards,

dasg

Hello Keith,

Please refer to this KB article for the issue. Basically this is a bug in the ES2 silicon and has been corrected in the ES3 Silicon.

Regards,

Kishore.