/******************************************************************************
* ID :
*
* Include :
*
* Declaration : bool R_PG_Clock_Stop_SUB(void)
*
* Function Name: R_PG_Clock_Stop_SUB
*
* Description : Stop the sub-clock oscillator
*
* Arguments : None
*
* Return Value : true : Setting was made correctly.
* : false : Setting failed.
*
* Calling Functions : R_CGC_Control
*
* Details : Please refer to the Reference Manual.
******************************************************************************/
bool R_PG_Clock_Stop_SUB(void)
{
return R_CGC_Control( PDL_CGC_SUB_CLOCK_DISABLE );
}
void ConfigureOperatingFrequency(void)
{
bool err = true;
//Configure the PLL to use the 20.0 MHz crystal as clock input
err &= R_CGC_Set
(
PDL_CGC_CLK_MAIN,
PDL_CGC_BCLK_DIV_1 | PDL_CGC_MAIN_RESONATOR,
20E6,
20E6,
20E6,
20E6,
20E6,
PDL_NO_DATA
);
/* Configure the clocks as follows -
Clock Description Frequency
----------------------------------------
PLL Clock frequency...............100MHz
System Clock Frequency.............50MHz
Peripheral Module Clock B..........25MHz
Peripheral Module Clock D..........50MHz
FlashIF Clock......................25MHz
External Bus Clock.................25MHz */
err &= R_CGC_Set
(
PDL_CGC_CLK_PLL,
PDL_CGC_BCLK_DIV_2,
100E6,
50E6,
50E6,
25E6,
25E6,
25E6
);
// Allow 100us for the main clock to stabilize
err &= R_CMT_CreateOneShot
(
0,
PDL_NO_DATA,
100E-6,
PDL_NO_FUNC,
0
);
// Change to high-speed operating mode
err &= R_LPC_Control(
PDL_LPC_CHANGE_HIGH_SPEED
);
// Select the PLL as the clock source
err &= R_CGC_Control
(
PDL_CGC_CLK_PLL,
PDL_CGC_SUB_CLOCK_CL_STANDARD,
PDL_CGC_SUB_CLOCK_ENABLE
);
while(!err)
;
}
/******************************************************************************
* ID :
*
* Include :
*
* Declaration : bool R_PG_Clock_Start_SUB(void)
*
* Function Name: R_PG_Clock_Start_SUB
*
* Description : Start the sub-clock oscillator
*
* Arguments : None
*
* Return Value : true : Setting was made correctly.
* : false : Setting failed.
*
* Calling Functions : R_CGC_Control
*
* Details : Please refer to the Reference Manual.
******************************************************************************/
bool R_PG_Clock_Start_SUB(void)
{
return R_CGC_Control( PDL_CGC_SUB_CLOCK_ENABLE );
}
