CPU management (cpu) [nRF24LU1+ HAL]

Functions
void	cpu_pwr_down (void)
void	cpu_set_clock_frequency (uint8_t cf)

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Function Documentation

void cpu_pwr_down

(

void

)

Function to set the CPU in power down mode

Returns:

This function does not return until the CPU wakens

Definition at line 22 of file cpu.c.

{
  PWRDWN = 1;
}

void cpu_set_clock_frequency

(

uint8_t

cf )

Function to set the clock frequency of the chip cf is the value of the CLKCTL register but only bits 4-6 are used in this function.

Parameters:

cf	The clock frequency

< The value of bit 6

< The value of bit 5

< The value of bit 4

< The value of bit 6

< The value of bit 5

< The value of bit 4

Definition at line 27 of file cpu.c.

{
  uint8_t temp = CLKCTL;

  // Clock frequnecy is defined by bits 6-4 in CLKCTL
  temp &= ~(BIT_6 | BIT_5 | BIT_4);
  temp |= cf & (BIT_6 | BIT_5 | BIT_4);
  
  F0 = EA;
  EA = 0;
  CLKCTL = temp;
  EA = F0;
}