If you are using 16 bit GPIF interface so GPIO 0 to GPIO 15 will be mapped to 16 bit data bus.
Hence, GPIO 14 can not be used. This is why you are getting the error. If you want to use GPIO 0 To GPIO 15. Make use of CyU3PDeviceGpioOverride API to override GPIO's 0 to 15. Bydefault they are mapped to GPIF
Thanks & Regards
Hi, I want to configure GPIO but I am having the issue regarding the address of io_cfg.gpioComplexEn.