Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_ONSEMI/TARGET_NCS36510/clock.h@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /**
<> 144:ef7eb2e8f9f7 2 ******************************************************************************
<> 144:ef7eb2e8f9f7 3 * @file clock.h
<> 144:ef7eb2e8f9f7 4 * @brief Header of clock hw module functions
<> 144:ef7eb2e8f9f7 5 * @internal
<> 144:ef7eb2e8f9f7 6 * @author ON Semiconductor
<> 144:ef7eb2e8f9f7 7 * $Rev: 3414 $
<> 144:ef7eb2e8f9f7 8 * $Date: 2015-06-05 13:27:04 +0530 (Fri, 05 Jun 2015) $
<> 144:ef7eb2e8f9f7 9 ******************************************************************************
<> 144:ef7eb2e8f9f7 10 * @copyright (c) 2012 ON Semiconductor. All rights reserved.
<> 144:ef7eb2e8f9f7 11 * ON Semiconductor is supplying this software for use with ON Semiconductor
<> 144:ef7eb2e8f9f7 12 * processor based microcontrollers only.
<> 144:ef7eb2e8f9f7 13 *
<> 144:ef7eb2e8f9f7 14 * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
<> 144:ef7eb2e8f9f7 15 * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
<> 144:ef7eb2e8f9f7 16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
<> 144:ef7eb2e8f9f7 17 * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
<> 144:ef7eb2e8f9f7 18 * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
<> 144:ef7eb2e8f9f7 19 * @endinternal
<> 144:ef7eb2e8f9f7 20 *
<> 144:ef7eb2e8f9f7 21 * @ingroup clock
<> 144:ef7eb2e8f9f7 22 */
<> 144:ef7eb2e8f9f7 23
<> 144:ef7eb2e8f9f7 24 #ifndef CLOCK_H_
<> 144:ef7eb2e8f9f7 25 #define CLOCK_H_
<> 144:ef7eb2e8f9f7 26
<> 144:ef7eb2e8f9f7 27 /*************************************************************************************************
<> 144:ef7eb2e8f9f7 28 * *
<> 144:ef7eb2e8f9f7 29 * Header files *
<> 144:ef7eb2e8f9f7 30 * *
<> 144:ef7eb2e8f9f7 31 *************************************************************************************************/
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 #include "types.h"
<> 144:ef7eb2e8f9f7 34
<> 144:ef7eb2e8f9f7 35 /*************************************************************************************************
<> 144:ef7eb2e8f9f7 36 * *
<> 144:ef7eb2e8f9f7 37 * Symbolic Constants *
<> 144:ef7eb2e8f9f7 38 * *
<> 144:ef7eb2e8f9f7 39 *************************************************************************************************/
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41 /** Peripherals clock disable defines /
<> 144:ef7eb2e8f9f7 42 * @details
<> 144:ef7eb2e8f9f7 43 */
<> 144:ef7eb2e8f9f7 44 #define CLOCK_TIMER0 (0x0) /**< <b> Timer 0 clock enable offset </b>*/
<> 144:ef7eb2e8f9f7 45 #define CLOCK_TIMER1 (0x1) /**< <b> Timer 1 clock enable offset </b>: */
<> 144:ef7eb2e8f9f7 46 #define CLOCK_TIMER2 (0x2) /**< <b> Timer 2 clock enable offset </b>: */
<> 144:ef7eb2e8f9f7 47 #define CLOCK_PAD0_0 (0x3) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 48 #define CLOCK_PAD0_1 (0x4) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 49 #define CLOCK_UART1 (0x5) /**< <b> UART 1 clock enable offset </b> */
<> 144:ef7eb2e8f9f7 50 #define CLOCK_SPI (0x6) /**< <b> SPI clock enable offset </b> */
<> 144:ef7eb2e8f9f7 51 #define CLOCK_I2C (0x7) /**< <b> I2C clock enable offset </b> */
<> 144:ef7eb2e8f9f7 52 #define CLOCK_UART2 (0x8) /**< <b> UART 2 clock enable offset </b> */
<> 144:ef7eb2e8f9f7 53 #define CLOCK_SPI2 (0x9) /**< <b> Unused offset </b>: */
<> 144:ef7eb2e8f9f7 54 #define CLOCK_WDOG (0xA) /**< <b> Watchdog clock enable offset </b> */
<> 144:ef7eb2e8f9f7 55 #define CLOCK_PWM (0xB) /**< <b> PWM clock enable offset </b> */
<> 144:ef7eb2e8f9f7 56 #define CLOCK_GPIO (0xC) /**< <b> GPIO clock enable offset </b> */
<> 144:ef7eb2e8f9f7 57 #define CLOCK_I2C2 (0xD) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 58 #define CLOCK_PAD2_1 (0xE) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 59 #define CLOCK_RTC (0xF) /**< <b> RTC clock enable offset </b> */
<> 144:ef7eb2e8f9f7 60 #define CLOCK_CROSSB (0x10) /**< <b> Crossbar clock enable offset </b> */
<> 144:ef7eb2e8f9f7 61 #define CLOCK_RAND (0x11) /**< <b> Randomizer clock enable offset </b> */
<> 144:ef7eb2e8f9f7 62 #define CLOCK_PAD3_0 (0x12) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 63 #define CLOCK_PAD3_1 (0x13) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 64 #define CLOCK_MACHW (0x14) /**< <b> macHw clock enable offset </b> */
<> 144:ef7eb2e8f9f7 65 #define CLOCK_ADC (0x15) /**< <b> ADC clock enable offset </b> */
<> 144:ef7eb2e8f9f7 66 #define CLOCK_AES (0x16) /**< <b> AES clock enable offset </b> */
<> 144:ef7eb2e8f9f7 67 #define CLOCK_FLASH (0x17) /**< <b> Flash controller clock enable offset</b> */
<> 144:ef7eb2e8f9f7 68 #define CLOCK_PAD4_0 (0x18) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 69 #define CLOCK_RFANA (0x19) /**< <b> rfAna clock enable offset </b> */
<> 144:ef7eb2e8f9f7 70 #define CLOCK_IO (0x1A) /**< <b> IO clock enable offset </b> */
<> 144:ef7eb2e8f9f7 71 #define CLOCK_PAD5_0 (0x1B) /**< <b> Unused offset </b> */
<> 144:ef7eb2e8f9f7 72 #define CLOCK_PAD (0x1C) /**< <b> Pad clock enable offset </b> */
<> 144:ef7eb2e8f9f7 73 #define CLOCK_PMU (0x1D) /**< <b> Pmu clock enable offset </b> */
<> 144:ef7eb2e8f9f7 74 #define CLOCK_DMA (0x1E) /**< <b> DMA clock enable offset </b> */
<> 144:ef7eb2e8f9f7 75 #define CLOCK_TEST (0x1F) /**< <b> Test controller clock enable offset </b> */
<> 144:ef7eb2e8f9f7 76
<> 144:ef7eb2e8f9f7 77 #define CLOCK_ENABLE(a) CLOCKREG->PDIS.WORD &= ~(1 << a)
<> 144:ef7eb2e8f9f7 78 #define CLOCK_DISABLE(a) CLOCKREG->PDIS.WORD |= (uint32_t)(1 << a)
<> 144:ef7eb2e8f9f7 79
<> 144:ef7eb2e8f9f7 80 /*************************************************************************************************
<> 144:ef7eb2e8f9f7 81 * *
<> 144:ef7eb2e8f9f7 82 * Functions *
<> 144:ef7eb2e8f9f7 83 * *
<> 144:ef7eb2e8f9f7 84 *************************************************************************************************/
<> 144:ef7eb2e8f9f7 85
<> 144:ef7eb2e8f9f7 86 /** Function to initialize clocks
<> 144:ef7eb2e8f9f7 87 * @details
<> 144:ef7eb2e8f9f7 88 * The function initializes clocks.
<> 144:ef7eb2e8f9f7 89 * This initialization includes:
<> 144:ef7eb2e8f9f7 90 * - Enable of external 32mHz oscillator
<> 144:ef7eb2e8f9f7 91 * - Disable of all peripheral clocks (to be turned on selectively when used later in the application)
<> 144:ef7eb2e8f9f7 92 * - Setting core frequency
<> 144:ef7eb2e8f9f7 93 */
<> 144:ef7eb2e8f9f7 94 void fClockInit(void);
<> 144:ef7eb2e8f9f7 95
<> 144:ef7eb2e8f9f7 96 /** Function to get peripheral clock frequency
<> 144:ef7eb2e8f9f7 97 * @details
<> 144:ef7eb2e8f9f7 98 * The function checks and returns peripheral clock frequency
<> 144:ef7eb2e8f9f7 99 * @return Peripheral clock frequency
<> 144:ef7eb2e8f9f7 100 */
<> 144:ef7eb2e8f9f7 101 uint32_t fClockGetPeriphClockfrequency();
<> 144:ef7eb2e8f9f7 102
<> 144:ef7eb2e8f9f7 103 /** Function to get peripheral clock frequency
<> 144:ef7eb2e8f9f7 104 * @details
<> 144:ef7eb2e8f9f7 105 * The function checks which input clock is sourcing 32kHz clock domain.
<> 144:ef7eb2e8f9f7 106 * This domain can be either sourced by:
<> 144:ef7eb2e8f9f7 107 * - Internal 32kHz oscillator
<> 144:ef7eb2e8f9f7 108 * - External 32.768kHz oscillator
<> 144:ef7eb2e8f9f7 109 * @return 32kHz clock domain frequency
<> 144:ef7eb2e8f9f7 110 */
<> 144:ef7eb2e8f9f7 111 uint16_t fClockGet32kClockfrequency();
<> 144:ef7eb2e8f9f7 112
<> 144:ef7eb2e8f9f7 113 /** Function to enable peripheral clock
<> 144:ef7eb2e8f9f7 114 * @details
<> 144:ef7eb2e8f9f7 115 * The function enables clock of peripheral indicated by parameter
<> 144:ef7eb2e8f9f7 116 * @param deviceId Peripheral ID whose clock must be enabled.
<> 144:ef7eb2e8f9f7 117 */
<> 144:ef7eb2e8f9f7 118 void fClockEnablePeriph(uint8_t deviceId);
<> 144:ef7eb2e8f9f7 119
<> 144:ef7eb2e8f9f7 120 /** Function to disable peripheral clock
<> 144:ef7eb2e8f9f7 121 * @details
<> 144:ef7eb2e8f9f7 122 * The function disables clock of peripheral indicated by parameter
<> 144:ef7eb2e8f9f7 123 * @param deviceId ID Peripheral whose clock must be disabled.
<> 144:ef7eb2e8f9f7 124 */
<> 144:ef7eb2e8f9f7 125 void fClockDisablePeriph(uint8_t deviceId);
<> 144:ef7eb2e8f9f7 126
<> 144:ef7eb2e8f9f7 127 #endif /* CLOCK_H_ */