Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device_peripherals.h@54:2a2065e67ef6, 2016-01-28 (annotated)

Committer:
mbed_official
Date:
Thu Jan 28 18:15:10 2016 +0000
Revision:
54:2a2065e67ef6
Parent:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7
Synchronized with git revision b5816d872d02a7420c05be91bea5f898b88d2e56



Full URL: https://github.com/mbedmicro/mbed/commit/b5816d872d02a7420c05be91bea5f898b88d2e56/



[Silicon Labs] Fix support for the RC oscillator

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 2 * @file device_peripheral.h
bogdanm 0:9b334a45a8ff 3 *******************************************************************************
bogdanm 0:9b334a45a8ff 4 * @section License
bogdanm 0:9b334a45a8ff 5 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
bogdanm 0:9b334a45a8ff 6 *******************************************************************************
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * Permission is granted to anyone to use this software for any purpose,
bogdanm 0:9b334a45a8ff 9 * including commercial applications, and to alter it and redistribute it
bogdanm 0:9b334a45a8ff 10 * freely, subject to the following restrictions:
bogdanm 0:9b334a45a8ff 11 *
bogdanm 0:9b334a45a8ff 12 * 1. The origin of this software must not be misrepresented; you must not
bogdanm 0:9b334a45a8ff 13 * claim that you wrote the original software.
bogdanm 0:9b334a45a8ff 14 * 2. Altered source versions must be plainly marked as such, and must not be
bogdanm 0:9b334a45a8ff 15 * misrepresented as being the original software.
bogdanm 0:9b334a45a8ff 16 * 3. This notice may not be removed or altered from any source distribution.
bogdanm 0:9b334a45a8ff 17 *
bogdanm 0:9b334a45a8ff 18 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
bogdanm 0:9b334a45a8ff 19 * obligation to support this Software. Silicon Labs is providing the
bogdanm 0:9b334a45a8ff 20 * Software "AS IS", with no express or implied warranties of any kind,
bogdanm 0:9b334a45a8ff 21 * including, but not limited to, any implied warranties of merchantability
bogdanm 0:9b334a45a8ff 22 * or fitness for any particular purpose or warranties against infringement
bogdanm 0:9b334a45a8ff 23 * of any proprietary rights of a third party.
bogdanm 0:9b334a45a8ff 24 *
bogdanm 0:9b334a45a8ff 25 * Silicon Labs will not be liable for any consequential, incidental, or
bogdanm 0:9b334a45a8ff 26 * special damages, or any other relief, or for any claim by any third party,
bogdanm 0:9b334a45a8ff 27 * arising from your use of this Software.
bogdanm 0:9b334a45a8ff 28 *
bogdanm 0:9b334a45a8ff 29 ******************************************************************************/
bogdanm 0:9b334a45a8ff 30 #ifndef MBED_DEVICE_PERIPHERALS_H
bogdanm 0:9b334a45a8ff 31 #define MBED_DEVICE_PERIPHERALS_H
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 /* us ticker */
bogdanm 0:9b334a45a8ff 34 #define US_TICKER_TIMER TIMER1
bogdanm 0:9b334a45a8ff 35 #define US_TICKER_TIMER_CLOCK cmuClock_TIMER1
bogdanm 0:9b334a45a8ff 36 #define US_TICKER_TIMER_IRQ TIMER1_IRQn
bogdanm 0:9b334a45a8ff 37
bogdanm 0:9b334a45a8ff 38 /* PWM */
bogdanm 0:9b334a45a8ff 39 #define PWM_TIMER TIMER0
bogdanm 0:9b334a45a8ff 40 #define PWM_TIMER_CLOCK cmuClock_TIMER0
bogdanm 0:9b334a45a8ff 41 #define PWM_ROUTE TIMER_ROUTE_LOCATION_LOC0
bogdanm 0:9b334a45a8ff 42
bogdanm 0:9b334a45a8ff 43 /* Clocks */
bogdanm 0:9b334a45a8ff 44
bogdanm 0:9b334a45a8ff 45 /* Clock definitions */
bogdanm 0:9b334a45a8ff 46 #define LFXO 0
bogdanm 0:9b334a45a8ff 47 #define HFXO 1
bogdanm 0:9b334a45a8ff 48 #define LFRCO 2
bogdanm 0:9b334a45a8ff 49 #define HFRCO 3
bogdanm 0:9b334a45a8ff 50 #if !defined(_EFM32_GECKO_FAMILY)
bogdanm 0:9b334a45a8ff 51 #define ULFRCO 4
bogdanm 0:9b334a45a8ff 52 #endif
bogdanm 0:9b334a45a8ff 53
bogdanm 0:9b334a45a8ff 54 /* Low Energy peripheral clock source.
bogdanm 0:9b334a45a8ff 55 * Options:
bogdanm 0:9b334a45a8ff 56 * * LFXO: external crystal, please define frequency.
bogdanm 0:9b334a45a8ff 57 * * LFRCO: internal RC oscillator (32.768kHz)
bogdanm 0:9b334a45a8ff 58 * * ULFRCO: internal ultra-low power RC oscillator (available down to EM3) (1kHz)
bogdanm 0:9b334a45a8ff 59 */
bogdanm 0:9b334a45a8ff 60 #define LOW_ENERGY_CLOCK_SOURCE LFXO
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 /** Core clock source.
bogdanm 0:9b334a45a8ff 63 * Options:
bogdanm 0:9b334a45a8ff 64 * * HFXO: external crystal, please define frequency.
bogdanm 0:9b334a45a8ff 65 * * HFRCO: High-frequency internal RC oscillator. Please select band as well.
bogdanm 0:9b334a45a8ff 66 */
bogdanm 0:9b334a45a8ff 67 #define CORE_CLOCK_SOURCE HFXO
bogdanm 0:9b334a45a8ff 68
bogdanm 0:9b334a45a8ff 69 /** HFRCO frequency band
bogdanm 0:9b334a45a8ff 70 * Options:
mbed_official 54:2a2065e67ef6 71 * * _CMU_HFRCOCTRL_BAND_21MHZ
mbed_official 54:2a2065e67ef6 72 * * _CMU_HFRCOCTRL_BAND_14MHZ
mbed_official 54:2a2065e67ef6 73 * * _CMU_HFRCOCTRL_BAND_11MHZ
mbed_official 54:2a2065e67ef6 74 * * _CMU_HFRCOCTRL_BAND_7MHZ
mbed_official 54:2a2065e67ef6 75 * * _CMU_HFRCOCTRL_BAND_1MHZ
bogdanm 0:9b334a45a8ff 76 */
mbed_official 54:2a2065e67ef6 77 #define HFRCO_FREQUENCY _CMU_HFRCOCTRL_BAND_21MHZ
bogdanm 0:9b334a45a8ff 78
bogdanm 0:9b334a45a8ff 79 #define LFXO_FREQUENCY 32768
bogdanm 0:9b334a45a8ff 80 #define HFXO_FREQUENCY 24000000
bogdanm 0:9b334a45a8ff 81
bogdanm 0:9b334a45a8ff 82 #if (LOW_ENERGY_CLOCK_SOURCE == LFXO)
bogdanm 0:9b334a45a8ff 83 #define LOW_ENERGY_CLOCK_FREQUENCY LFXO_FREQUENCY
bogdanm 0:9b334a45a8ff 84 #elif (LOW_ENERGY_CLOCK_SOURCE == LFRCO)
bogdanm 0:9b334a45a8ff 85 #define LOW_ENERGY_CLOCK_FREQUENCY 32768
bogdanm 0:9b334a45a8ff 86 #elif (LOW_ENERGY_CLOCK_SOURCE == ULFRCO)
bogdanm 0:9b334a45a8ff 87 #define LOW_ENERGY_CLOCK_FREQUENCY 1000
bogdanm 0:9b334a45a8ff 88 #else
bogdanm 0:9b334a45a8ff 89 #error "Unknown Low Energy Clock selection"
bogdanm 0:9b334a45a8ff 90 #endif
bogdanm 0:9b334a45a8ff 91
bogdanm 0:9b334a45a8ff 92 #endif