Failed to enable Capsense

[yangyong]

   I am learning CAPSENSE slide on the CY8CKIT-149.  the routine and my owm project work normally in PSoC Creator IDE.  In modustoolbox2.4 IDE, The  CAPSENSE_CSD_Slider_Tuning routine  work normally。 I created a project according to this routine. In the Capsense tuner, I checked, but there was no response.  After debugging, I found that the function Cy_ CapSense_ Enable return value is CY_CAPSENSE_STATUS_INVALID_STATE.   Why CAPSENSE fails to enable?

I am attaching project .Thank.. 

Regards,

[LinglingG_46]

Please open the CY8CKIT-149 capsense tuning demo project in Modus Toolbox. I have run it in cy8ckit-149, it works well.

[yangyong]

Yes, I know  the CY8CKIT-149 capsense tuning demo project is OK.  I mean, I  build my own project according to the demo does not work properly.

[LinglingG_46]

Please compare which is different.

[yangyong]

thanks, The code is basically copied from the demo。

[LinglingG_46]

compare the capsense configuration. I think you can use compare tool.

[yangyong]

OK, l compare the capsense configuration again。Can you tell me what made capsense failed to enable?

[yangyong]

Can you tell me what needs to be configured to create a capsense project on the demo board?

[yangyong]

I think it is not a configuration problem, because no matter what configuration parameters, it is impossible to affect the enabling of capsense. I now change the configuration to the same as the demo, and the code is the same. However, the capsense enable fails

[Vison_Zhang · Accepted solution]

Interrupt will be served in CapSense initialization,  in your code  __enable_irq()  is place much to behind, cause capsense isr cannot be served normally in CapSense initialization process.

You should put __enable_irq() just before EZI2C and CapSense init code.

cy_rslt_t result;
cy_status status = CYRET_SUCCESS;
/* Initialize the device and board peripherals */
result = cybsp_init() ;
if (result != CY_RSLT_SUCCESS)
{
CY_ASSERT(0);
}

__enable_irq();

/* EZI2C interrupt configuration */
const cy_stc_sysint_t ezi2c_intr_config =
{
.intrsrc=EZI2C_IRQ,
.intrPriority = EZI2C_INTR_PRIORITY,
};

[yangyong]

thanks!

[yangyong]

thank you very much!