/*FUNCTION**********************************************************************
*
* Function Name : CLOCK_HAL_GetOutDiv
* Description : Get all clock out dividers setting at the same time
* This function will get the setting for all clock out dividers.
*
*END**************************************************************************/
void CLOCK_HAL_GetOutDiv(SIM_Type* base,
uint8_t *outdiv1,
uint8_t *outdiv2,
uint8_t *outdiv3,
uint8_t *outdiv4)
{
*outdiv1 = SIM_BRD_CLKDIV1_OUTDIV1(base);
*outdiv2 = SIM_BRD_CLKDIV1_OUTDIV2(base);
*outdiv4 = SIM_BRD_CLKDIV1_OUTDIV4(base);
}
void init_hardware(void)
{
// Disable the MPU otherwise USB cannot access the bus
MPU->CESR = 0;
// Enable all the ports
SIM->SCGC5 |= ( SIM_SCGC5_PORTA_MASK
| SIM_SCGC5_PORTB_MASK
| SIM_SCGC5_PORTC_MASK
| SIM_SCGC5_PORTD_MASK
| SIM_SCGC5_PORTE_MASK );
// Update SystemCoreClock. FOPT bits set the OUTDIV1 value.
SystemCoreClock /= (SIM_BRD_CLKDIV1_OUTDIV1(SIM) + 1);
}
uint32_t get_bus_clock(void)
{
uint32_t busClockDivider = SIM_BRD_CLKDIV1_OUTDIV2(SIM) + 1;
uint32_t coreClockDivider = SIM_BRD_CLKDIV1_OUTDIV1(SIM) + 1;
return (SystemCoreClock * coreClockDivider / busClockDivider);
}
