In working with the FTK, I would like to duplicate the onboard JTAG functionality provided by the CY7C68013A microcontroller. 

Why are both SW0IO and SW0CK provided by USBIO (P15_6, P15_7) and PORT1 (P1_0, P1_1) attached to this microcontroller? Which of these two are being used for programming the PSOC5? Could someone with familiarity with the schematic for the FTK and PSOC5 line elaborate this a little further?

Thank you.

Can I run a GPIO pin as output, open drain, drive low and attach an external pullup to 5V while the system is running 3.3V? All VDDIO is 3.3V.

I intend to use an external RAM with a PSoc3 chip. I find EMI component is available in the standard component library.

And it has got  ADDRESS , DATA and CONTROL type of I/Os. There are total five(5) I/Os are given without any detail .

The standard controls required for such interface are  CE,OE and WR.  However, to my surprise I coundn't  find any hint

about the usages of the 5 Control pins in the component data sheet. So,  when I sit with the hardware design I am not sure about the pin assignments.  And I don't find any example on EMI as well.  Also , I am not sure about the software implementation  of the EMI. Can I get some help on this issue?

Regards.

A.R.Bhattacharya. 

I used a RTC in PSoC3.

i defined a variable in main.c. i want to use the value of the variable in the RTC_INT.c . Let me know how to pass such a variable from main.c to RTC_INT.c file

regards

kavin

 hi developers,

                              i have a confusion in the basics. What is the function of a PSoC system sleep timer. how is it different from the watchdog timer. please help me out