Hello Piotr,
If you want to use port C, you can use the Init_GPIO for configuration of all pins. There are two main group in this component - Settings and Pin selection/routing.
Settings group allows configuration of the electrical properties, pin direction and output value of every pin.
Pin selection/routing group allows configuration of pin mux control (selection of pins as GPIO).
The initialization code is generated in the PE_low_level_init() function in Cpu.c program module (PORTC_PCRx registers) and in the PTC_Init() function in PTC.c (Init_GPIO) program module.
Therefore you needn't use GPIO_LDD component. You can just use PDD macros for reading input value of the PTC, see for example following code:
. . .
#include "GPIO_PDD.h"
/* User includes (#include below this line is not maintained by Processor Expert) */
/*lint -save -e970 Disable MISRA rule (6.3) checking. */
int main(void)
/*lint -restore Enable MISRA rule (6.3) checking. */
{
uint32_t port_val;
/* Write your local variable definition here */
/*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
PE_low_level_init();
/*** End of Processor Expert internal initialization. ***/
/* Write your code here */
/* For example: for(;;) { } */
port_val = GPIO_PDD_GetPortDataInput(PTC_DEVICE);
. . .
Note:
Please, don't use the "sharing pin". This functionality can be used when you need sharing of one pin by two devices (e.g. UART - TxD pin and GPIO pin). The functionality can be switched during runtime by using ConnectPin method (see the help page Processor Expert Software - Kinetis Design Studio > Processor Expert User Guide > Application Design > Configuring Components > Sharing Pins Among Peripherals in KDS 3.0.0).
Best Regards,
Marek Neuzil
