bmp_clock.c File Reference

Clock configuration code for BMP LPC1768. More...

#include "lpc17xx.h"
#include "lpc17xx_clkpwr.h"

Macros
#define	XTAL_CLK   25000000
#define	PCLKSEL0_V
	Peripheral clock speed selection: clock 0.
#define	PCLKSEL1_V
	Peripheral clock speed selection: clock 1.
#define	SCS_V   0x00000030
	Range 15-25MHz, main osc on.
#define	CCLKCFG_V   0x00000002
	Divide PLL0 by 3 for CCLK.
#define	CLKSRCSEL_V   0x00000001
	Main clock -> PLL0.
#define	PLL0CFG_V   0x0001000b
	N = 2, M = 12.
#define	FLASHCFG_V   0x0000403a
	Flash uses 5 clks / access.
#define	PLL_UP   ((1 << 25) | (1 << 24))
	PLL is up.
#define	PLL_LOCK   (1 << 26)
	PLL has locked.
#define	OSC_UP   (1 << 6)
	Oscillator is up.
#define	PCONP_V
	Which peripherals get a clock signal.

Enumerations
enum	bmp_clock_div { PDIV4 = 0 , PDIV1 = 1 , PDIV2 = 2 , PDIV8 = 3 }
	Clock divisors.
enum	bmp_clock_0_select {   PCLKSEL_WDT = 0 , PCLKSEL_TIMER0 = 2 , PCLKSEL_TIMER1 = 4 , PCLKSEL_UART0 = 6 ,   PCLKSEL_UART1 = 8 , PCLKSEL_PWM1 = 12 , PCLKSEL_I2C0 = 14 , PCLKSEL_SPI = 16 ,   PCLKSEL_SSP1 = 20 , PCLKSEL_DAC = 22 , PCLKSEL_ADC = 24 , PCLKSEL_CAN1 = 26 ,   PCLKSEL_CAN2 = 28 , PCLKSEL_ACF = 30 }
enum	bmp_clock_1_select {   PCLKSEL_QEI = 0 , PCLKSEL_PCB = 4 , PCLKSEL_I2C1 = 6 , PCLKSEL_SSP0 = 10 ,   PCLKSEL_TIMER2 = 12 , PCLKSEL_TIMER3 = 14 , PCLKSEL_UART2 = 16 , PCLKSEL_UART3 = 18 ,   PCLKSEL_I2C2 = 20 , PCLKSEL_I2S = 22 , PCLKSEL_RIT = 26 , PCLKSEL_SYSCON = 28 ,   PCLKSEL_MC = 30 }
enum	bmp_clock_power_control {   PCONP_PCTIM0 = (1<<1) , PCONP_PCTIM1 = (1<<2) , PCONP_PCUART0 = (1<<3) , PCONP_PCUART1 = (1<<4) ,   PCONP_PCPWM1 = (1<<6) , PCONP_PCI2C0 = (1<<7) , PCONP_PCSPI = (1<<8) , PCONP_PCRTC = (1<<9) ,   PCONP_PCSSP1 = (1<<10) , PCONP_PCAD = (1<<12) , PCONP_PCAN1 = (1<<13) , PCONP_PCAN2 = (1<<14) ,   PCONP_PCGPIO = (1<<15) , PCONP_PCRIT = (1<<16) , PCONP_PCMC = (1<<17) , PCONP_PCQEI = (1<<18) ,   PCONP_PCI2C1 = (1<<19) , PCONP_PCSSP0 = (1<<21) , PCONP_PCTIM2 = (1<<22) , PCONP_PCTIM3 = (1<<23) ,   PCONP_PCUART2 = (1<<24) , PCONP_PCUART3 = (1<<25) , PCONP_PCI2C2 = (1<<26) , PCONP_PCI2S = (1<<27) ,   PCONP_PCGPDMA = (1<<29) , PCONP_PCENET = (1<<30) , PCONP_PCUSB = (1<<31) }

Functions
void	configure_clocks (void)
	Configure the clocks.

Detailed Description

Clock configuration code for BMP LPC1768.

Copyright

© The University of Manchester - 2012-2015

Author

Steve Temple, APT Group, School of Computer Science

Macro Definition Documentation

PCLKSEL0_V

#define PCLKSEL0_V

Value:

    (PDIV4 << PCLKSEL_WDT) + \
    (PDIV1 << PCLKSEL_TIMER0) + \
    (PDIV1 << PCLKSEL_TIMER1) + \
    (PDIV4 << PCLKSEL_UART0) + \
    (PDIV4 << PCLKSEL_UART1) + \
    (PDIV4 << PCLKSEL_PWM1) + \
    (PDIV4 << PCLKSEL_I2C0) + \
    (PDIV4 << PCLKSEL_SPI) + \
    (PDIV1 << PCLKSEL_SSP1) + \
    (PDIV4 << PCLKSEL_DAC) + \
    (PDIV4 << PCLKSEL_ADC) + \
    (PDIV2 << PCLKSEL_CAN1) + \
    (PDIV2 << PCLKSEL_CAN2) + \
    (PDIV2 << PCLKSEL_ACF)

Peripheral clock speed selection: clock 0.

PCLKSEL1_V

#define PCLKSEL1_V

Value:

    (PDIV4 << PCLKSEL_QEI) + \
    (PDIV4 << PCLKSEL_PCB) + \
    (PDIV4 << PCLKSEL_I2C1) + \
    (PDIV1 << PCLKSEL_SSP0) + \
    (PDIV1 << PCLKSEL_TIMER2) + \
    (PDIV1 << PCLKSEL_TIMER3) + \
    (PDIV4 << PCLKSEL_UART2) + \
    (PDIV4 << PCLKSEL_UART3) + \
    (PDIV4 << PCLKSEL_I2C2) + \
    (PDIV4 << PCLKSEL_I2S) + \
    (PDIV4 << PCLKSEL_RIT) + \
    (PDIV4 << PCLKSEL_SYSCON) + \
    (PDIV1 << PCLKSEL_MC)

Peripheral clock speed selection: clock 1.

PCONP_V

#define PCONP_V

Value:

    PCONP_PCTIM0 + \
    PCONP_PCTIM1 + \
    PCONP_PCPWM1 + \
    PCONP_PCI2C0 + \
    PCONP_PCI2C2 + \
    PCONP_PCSSP1 + \
    PCONP_PCAD + \
    PCONP_PCAN1 + \
    PCONP_PCGPIO + \
    PCONP_PCSSP0 + \
    PCONP_PCTIM2 + \
    PCONP_PCTIM3 + \
    PCONP_PCGPDMA + \
    PCONP_PCENET + \
    PCONP_PCMC

Which peripherals get a clock signal.