added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/mbed_overrides.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)
- Committer:
- <>
- Date:
- Fri Sep 02 15:07:44 2016 +0100
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 50:a417edff4437
This updates the lib to the mbed lib v125
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2 | * @file mbed_overrides.c |
<> | 144:ef7eb2e8f9f7 | 3 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 4 | * @section License |
<> | 144:ef7eb2e8f9f7 | 5 | * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> |
<> | 144:ef7eb2e8f9f7 | 6 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 7 | * |
<> | 144:ef7eb2e8f9f7 | 8 | * SPDX-License-Identifier: Apache-2.0 |
<> | 144:ef7eb2e8f9f7 | 9 | * |
<> | 144:ef7eb2e8f9f7 | 10 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
<> | 144:ef7eb2e8f9f7 | 11 | * not use this file except in compliance with the License. |
<> | 144:ef7eb2e8f9f7 | 12 | * You may obtain a copy of the License at |
<> | 144:ef7eb2e8f9f7 | 13 | * |
<> | 144:ef7eb2e8f9f7 | 14 | * http://www.apache.org/licenses/LICENSE-2.0 |
<> | 144:ef7eb2e8f9f7 | 15 | * |
<> | 144:ef7eb2e8f9f7 | 16 | * Unless required by applicable law or agreed to in writing, software |
<> | 144:ef7eb2e8f9f7 | 17 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
<> | 144:ef7eb2e8f9f7 | 18 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
<> | 144:ef7eb2e8f9f7 | 19 | * See the License for the specific language governing permissions and |
<> | 144:ef7eb2e8f9f7 | 20 | * limitations under the License. |
<> | 144:ef7eb2e8f9f7 | 21 | * |
<> | 144:ef7eb2e8f9f7 | 22 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 23 | |
<> | 144:ef7eb2e8f9f7 | 24 | #include "em_chip.h" |
<> | 144:ef7eb2e8f9f7 | 25 | #include "em_device.h" |
<> | 144:ef7eb2e8f9f7 | 26 | #include "em_cmu.h" |
<> | 144:ef7eb2e8f9f7 | 27 | #include "em_emu.h" |
<> | 144:ef7eb2e8f9f7 | 28 | #include "device_peripherals.h" |
<> | 144:ef7eb2e8f9f7 | 29 | #include "device.h" |
<> | 144:ef7eb2e8f9f7 | 30 | #include "em_usart.h" |
<> | 144:ef7eb2e8f9f7 | 31 | #include "gpio_api.h" |
<> | 144:ef7eb2e8f9f7 | 32 | |
<> | 144:ef7eb2e8f9f7 | 33 | gpio_t bc_enable; |
<> | 144:ef7eb2e8f9f7 | 34 | |
<> | 144:ef7eb2e8f9f7 | 35 | /* Called before main - implement here if board needs it. |
<> | 144:ef7eb2e8f9f7 | 36 | * Otherwise, let the application override this if necessary */ |
<> | 144:ef7eb2e8f9f7 | 37 | void mbed_sdk_init() |
<> | 144:ef7eb2e8f9f7 | 38 | { |
<> | 144:ef7eb2e8f9f7 | 39 | CHIP_Init(); |
<> | 144:ef7eb2e8f9f7 | 40 | |
<> | 144:ef7eb2e8f9f7 | 41 | #if defined(_SILICON_LABS_32B_PLATFORM_2) |
<> | 144:ef7eb2e8f9f7 | 42 | EMU_DCDCInit_TypeDef dcdcInit = EMU_DCDCINIT_DEFAULT; |
<> | 144:ef7eb2e8f9f7 | 43 | EMU_DCDCInit(&dcdcInit); |
<> | 144:ef7eb2e8f9f7 | 44 | #endif |
<> | 144:ef7eb2e8f9f7 | 45 | |
<> | 144:ef7eb2e8f9f7 | 46 | /* Set up the clock sources for this chip */ |
<> | 144:ef7eb2e8f9f7 | 47 | #if( CORE_CLOCK_SOURCE == HFXO) |
<> | 144:ef7eb2e8f9f7 | 48 | CMU_ClockSelectSet(cmuClock_HF, cmuSelect_HFXO); |
<> | 144:ef7eb2e8f9f7 | 49 | SystemHFXOClockSet(HFXO_FREQUENCY); |
<> | 144:ef7eb2e8f9f7 | 50 | #elif( CORE_CLOCK_SOURCE == HFRCO) |
<> | 144:ef7eb2e8f9f7 | 51 | CMU_ClockSelectSet(cmuClock_HF, cmuSelect_HFRCO); |
<> | 144:ef7eb2e8f9f7 | 52 | # if defined _CMU_HFRCOCTRL_BAND_MASK |
<> | 144:ef7eb2e8f9f7 | 53 | CMU_HFRCOBandSet(HFRCO_FREQUENCY); |
<> | 144:ef7eb2e8f9f7 | 54 | # elif defined _CMU_HFRCOCTRL_FREQRANGE_MASK |
<> | 144:ef7eb2e8f9f7 | 55 | CMU_HFRCOFreqSet(HFRCO_FREQUENCY_ENUM); |
<> | 144:ef7eb2e8f9f7 | 56 | # else |
<> | 144:ef7eb2e8f9f7 | 57 | # error "Can't set HFRCO frequency" |
<> | 144:ef7eb2e8f9f7 | 58 | # endif |
<> | 144:ef7eb2e8f9f7 | 59 | #else |
<> | 144:ef7eb2e8f9f7 | 60 | # error "Core clock selection not valid (mbed_overrides.c)" |
<> | 144:ef7eb2e8f9f7 | 61 | #endif |
<> | 144:ef7eb2e8f9f7 | 62 | |
<> | 144:ef7eb2e8f9f7 | 63 | CMU_ClockEnable(cmuClock_CORELE, true); |
<> | 144:ef7eb2e8f9f7 | 64 | |
<> | 144:ef7eb2e8f9f7 | 65 | #if( LOW_ENERGY_CLOCK_SOURCE == LFXO ) |
<> | 144:ef7eb2e8f9f7 | 66 | # ifdef _CMU_LFACLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 67 | CMU_ClockSelectSet(cmuClock_LFA, cmuSelect_LFXO); |
<> | 144:ef7eb2e8f9f7 | 68 | # endif |
<> | 144:ef7eb2e8f9f7 | 69 | # ifdef _CMU_LFBCLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 70 | /* cmuClock_LFB (to date) only has LEUART peripherals. |
<> | 144:ef7eb2e8f9f7 | 71 | * This gets set automatically whenever you create serial objects using LEUART |
<> | 144:ef7eb2e8f9f7 | 72 | */ |
<> | 144:ef7eb2e8f9f7 | 73 | # endif |
<> | 144:ef7eb2e8f9f7 | 74 | # ifdef _CMU_LFECLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 75 | CMU_ClockSelectSet(cmuClock_LFE, cmuSelect_LFXO); |
<> | 144:ef7eb2e8f9f7 | 76 | # endif |
<> | 144:ef7eb2e8f9f7 | 77 | SystemLFXOClockSet(LFXO_FREQUENCY); |
<> | 144:ef7eb2e8f9f7 | 78 | |
<> | 144:ef7eb2e8f9f7 | 79 | #elif( LOW_ENERGY_CLOCK_SOURCE == LFRCO ) |
<> | 144:ef7eb2e8f9f7 | 80 | # ifdef _CMU_LFACLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 81 | CMU_ClockSelectSet(cmuClock_LFA, cmuSelect_LFRCO); |
<> | 144:ef7eb2e8f9f7 | 82 | # endif |
<> | 144:ef7eb2e8f9f7 | 83 | # ifdef _CMU_LFBCLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 84 | //CMU_ClockSelectSet(cmuClock_LFB, cmuSelect_LFRCO); |
<> | 144:ef7eb2e8f9f7 | 85 | # endif |
<> | 144:ef7eb2e8f9f7 | 86 | # ifdef _CMU_LFECLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 87 | CMU_ClockSelectSet(cmuClock_LFE, cmuSelect_LFRCO); |
<> | 144:ef7eb2e8f9f7 | 88 | # endif |
<> | 144:ef7eb2e8f9f7 | 89 | |
<> | 144:ef7eb2e8f9f7 | 90 | #elif( LOW_ENERGY_CLOCK_SOURCE == ULFRCO) |
<> | 144:ef7eb2e8f9f7 | 91 | # ifdef _CMU_LFACLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 92 | CMU_ClockSelectSet(cmuClock_LFA, cmuSelect_ULFRCO); |
<> | 144:ef7eb2e8f9f7 | 93 | # endif |
<> | 144:ef7eb2e8f9f7 | 94 | # ifdef _CMU_LFBCLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 95 | CMU_ClockSelectSet(cmuClock_LFB, cmuSelect_ULFRCO); |
<> | 144:ef7eb2e8f9f7 | 96 | # endif |
<> | 144:ef7eb2e8f9f7 | 97 | # ifdef _CMU_LFECLKEN0_MASK |
<> | 144:ef7eb2e8f9f7 | 98 | CMU_ClockSelectSet(cmuClock_LFE, cmuSelect_ULFRCO); |
<> | 144:ef7eb2e8f9f7 | 99 | # endif |
<> | 144:ef7eb2e8f9f7 | 100 | #else |
<> | 144:ef7eb2e8f9f7 | 101 | # error "Low energy clock selection not valid" |
<> | 144:ef7eb2e8f9f7 | 102 | #endif |
<> | 144:ef7eb2e8f9f7 | 103 | |
<> | 144:ef7eb2e8f9f7 | 104 | /* Enable BC line driver to avoid garbage on CDC port */ |
<> | 144:ef7eb2e8f9f7 | 105 | gpio_init_out_ex(&bc_enable, EFM_BC_EN, 1); |
<> | 144:ef7eb2e8f9f7 | 106 | } |