__asm void HardFault_Handler(void)
{
  TST LR, #4
  ITE EQ
  MRSEQ R0, MSP        ; Main Stack was used, put MSP in R0
  MRSNE R0, PSP        ; Process Stack was used, put PSP in R0
  LDR R0, [R0, #24]    ; Get stacked PC from stack

  LDR R1, =0x40020418    ; GPIOB->BSRR
  MOVS R2, #0x0002    ; Bit 2
  STRH R2, [R1, #2]    ; Reset bit (LED_ON)
  B .
}

#include <stdio.h>
#include "compiler_abstraction.h"
#include "nrf.h"
#include "nrf_delay.h"

/*lint --e{438} "Variable not used" */
void nrf_delay_ms(uint32_t volatile number_of_ms)
{
    while(number_of_ms != 0)
    {
        number_of_ms--;
        nrf_delay_us(999);
    }
}

static  __ASM void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
{
loop
        SUBS    R0, R0, #1
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        BNE    loop
        BX     LR
}