I am trying to write a code for this emulated pacemaker device, but i couldn't i need some help. the requirement in the attached pic

if (SW1==0x10){

if(GPIO_PORTF_DATA_R &= ~0x08){
Delay1ms(250); //
GPIO_PORTF_DATA_R |= 0x02; // LED is on
Delay1ms(250); //
GPIO_PORTF_DATA_R &= ~0x02; // LED is off
GPIO_PORTF_DATA_R |= 0x08; // LED green is on

}
}else{
GPIO_PORTF_DATA_R &= ~0x08; // LED green is on
Delay1ms(10); //

}

 

build a mill sec counter.
Make a state machine ( state a to state i as stated in your jpg)
Each state will check and/ or handle as described in your jpg.

Picbuster

 

i built the msec delay but the i didn't study the state machine yet, so is there any other solutions?

 

A state machine powerful but easy-to-implement way to go. It will also help you organize your program flow (whether done with a hardware state machine or microcontroller.)

For some easy reading that can speed your design:
https://blog.markshead.com/869/state-machines-computer-science/https://en.wikipedia.org/wiki/Finite-state_machine

A simple hardware state machine:

Could you do this in firmware?