mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_prs.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 em_prs.c |
<> | 144:ef7eb2e8f9f7 | 3 | * @brief Peripheral Reflex System (PRS) Peripheral API |
<> | 144:ef7eb2e8f9f7 | 4 | * @version 4.2.1 |
<> | 144:ef7eb2e8f9f7 | 5 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 6 | * @section License |
<> | 144:ef7eb2e8f9f7 | 7 | * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> |
<> | 144:ef7eb2e8f9f7 | 8 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 9 | * |
<> | 144:ef7eb2e8f9f7 | 10 | * Permission is granted to anyone to use this software for any purpose, |
<> | 144:ef7eb2e8f9f7 | 11 | * including commercial applications, and to alter it and redistribute it |
<> | 144:ef7eb2e8f9f7 | 12 | * freely, subject to the following restrictions: |
<> | 144:ef7eb2e8f9f7 | 13 | * |
<> | 144:ef7eb2e8f9f7 | 14 | * 1. The origin of this software must not be misrepresented; you must not |
<> | 144:ef7eb2e8f9f7 | 15 | * claim that you wrote the original software. |
<> | 144:ef7eb2e8f9f7 | 16 | * 2. Altered source versions must be plainly marked as such, and must not be |
<> | 144:ef7eb2e8f9f7 | 17 | * misrepresented as being the original software. |
<> | 144:ef7eb2e8f9f7 | 18 | * 3. This notice may not be removed or altered from any source distribution. |
<> | 144:ef7eb2e8f9f7 | 19 | * |
<> | 144:ef7eb2e8f9f7 | 20 | * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no |
<> | 144:ef7eb2e8f9f7 | 21 | * obligation to support this Software. Silicon Labs is providing the |
<> | 144:ef7eb2e8f9f7 | 22 | * Software "AS IS", with no express or implied warranties of any kind, |
<> | 144:ef7eb2e8f9f7 | 23 | * including, but not limited to, any implied warranties of merchantability |
<> | 144:ef7eb2e8f9f7 | 24 | * or fitness for any particular purpose or warranties against infringement |
<> | 144:ef7eb2e8f9f7 | 25 | * of any proprietary rights of a third party. |
<> | 144:ef7eb2e8f9f7 | 26 | * |
<> | 144:ef7eb2e8f9f7 | 27 | * Silicon Labs will not be liable for any consequential, incidental, or |
<> | 144:ef7eb2e8f9f7 | 28 | * special damages, or any other relief, or for any claim by any third party, |
<> | 144:ef7eb2e8f9f7 | 29 | * arising from your use of this Software. |
<> | 144:ef7eb2e8f9f7 | 30 | * |
<> | 144:ef7eb2e8f9f7 | 31 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 32 | |
<> | 144:ef7eb2e8f9f7 | 33 | #include "em_prs.h" |
<> | 144:ef7eb2e8f9f7 | 34 | #if defined(PRS_COUNT) && (PRS_COUNT > 0) |
<> | 144:ef7eb2e8f9f7 | 35 | |
<> | 144:ef7eb2e8f9f7 | 36 | #include "em_assert.h" |
<> | 144:ef7eb2e8f9f7 | 37 | |
<> | 144:ef7eb2e8f9f7 | 38 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 39 | * @addtogroup EM_Library |
<> | 144:ef7eb2e8f9f7 | 40 | * @{ |
<> | 144:ef7eb2e8f9f7 | 41 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 42 | |
<> | 144:ef7eb2e8f9f7 | 43 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 44 | * @addtogroup PRS |
<> | 144:ef7eb2e8f9f7 | 45 | * @brief Peripheral Reflex System (PRS) Peripheral API |
<> | 144:ef7eb2e8f9f7 | 46 | * @{ |
<> | 144:ef7eb2e8f9f7 | 47 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 48 | |
<> | 144:ef7eb2e8f9f7 | 49 | /******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 50 | ************************** GLOBAL FUNCTIONS ******************************* |
<> | 144:ef7eb2e8f9f7 | 51 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 52 | |
<> | 144:ef7eb2e8f9f7 | 53 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 54 | * @brief |
<> | 144:ef7eb2e8f9f7 | 55 | * Set source and signal to be used for a channel. |
<> | 144:ef7eb2e8f9f7 | 56 | * |
<> | 144:ef7eb2e8f9f7 | 57 | * @param[in] ch |
<> | 144:ef7eb2e8f9f7 | 58 | * Channel to define signal and source for. |
<> | 144:ef7eb2e8f9f7 | 59 | * |
<> | 144:ef7eb2e8f9f7 | 60 | * @param[in] source |
<> | 144:ef7eb2e8f9f7 | 61 | * Source to select for channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines. |
<> | 144:ef7eb2e8f9f7 | 62 | * |
<> | 144:ef7eb2e8f9f7 | 63 | * @param[in] signal |
<> | 144:ef7eb2e8f9f7 | 64 | * Signal (for selected @p source) to use. Use one of PRS_CH_CTRL_SIGSEL_x |
<> | 144:ef7eb2e8f9f7 | 65 | * defines. |
<> | 144:ef7eb2e8f9f7 | 66 | * |
<> | 144:ef7eb2e8f9f7 | 67 | * @param[in] edge |
<> | 144:ef7eb2e8f9f7 | 68 | * Edge (for selected source/signal) to generate pulse for. |
<> | 144:ef7eb2e8f9f7 | 69 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 70 | void PRS_SourceSignalSet(unsigned int ch, |
<> | 144:ef7eb2e8f9f7 | 71 | uint32_t source, |
<> | 144:ef7eb2e8f9f7 | 72 | uint32_t signal, |
<> | 144:ef7eb2e8f9f7 | 73 | PRS_Edge_TypeDef edge) |
<> | 144:ef7eb2e8f9f7 | 74 | { |
<> | 144:ef7eb2e8f9f7 | 75 | EFM_ASSERT(ch < PRS_CHAN_COUNT); |
<> | 144:ef7eb2e8f9f7 | 76 | |
<> | 144:ef7eb2e8f9f7 | 77 | PRS->CH[ch].CTRL = (source & _PRS_CH_CTRL_SOURCESEL_MASK) |
<> | 144:ef7eb2e8f9f7 | 78 | | (signal & _PRS_CH_CTRL_SIGSEL_MASK) |
<> | 144:ef7eb2e8f9f7 | 79 | | (uint32_t)edge; |
<> | 144:ef7eb2e8f9f7 | 80 | } |
<> | 144:ef7eb2e8f9f7 | 81 | |
<> | 144:ef7eb2e8f9f7 | 82 | #if defined( PRS_CH_CTRL_ASYNC ) |
<> | 144:ef7eb2e8f9f7 | 83 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 84 | * @brief |
<> | 144:ef7eb2e8f9f7 | 85 | * Set source and asynchronous signal to be used for a channel. |
<> | 144:ef7eb2e8f9f7 | 86 | * |
<> | 144:ef7eb2e8f9f7 | 87 | * @details |
<> | 144:ef7eb2e8f9f7 | 88 | * Asynchronous reflexes are not clocked on HFPERCLK, and can be used even in |
<> | 144:ef7eb2e8f9f7 | 89 | * EM2/EM3. |
<> | 144:ef7eb2e8f9f7 | 90 | * There is a limitation to reflexes operating in asynchronous mode: they can |
<> | 144:ef7eb2e8f9f7 | 91 | * only be used by a subset of the reflex consumers. Please refer to PRS |
<> | 144:ef7eb2e8f9f7 | 92 | * chapter in the reference manual for the complete list of supported |
<> | 144:ef7eb2e8f9f7 | 93 | * asynchronous signals and consumers. |
<> | 144:ef7eb2e8f9f7 | 94 | * |
<> | 144:ef7eb2e8f9f7 | 95 | * @note |
<> | 144:ef7eb2e8f9f7 | 96 | * This function is not supported on EFM32GxxxFyyy parts. |
<> | 144:ef7eb2e8f9f7 | 97 | * In asynchronous mode, the edge detector only works in EM0, hence it shall |
<> | 144:ef7eb2e8f9f7 | 98 | * not be used. The EDSEL parameter in PRS_CHx_CTRL register is set to 0 (OFF) |
<> | 144:ef7eb2e8f9f7 | 99 | * by default. |
<> | 144:ef7eb2e8f9f7 | 100 | * |
<> | 144:ef7eb2e8f9f7 | 101 | * @param[in] ch |
<> | 144:ef7eb2e8f9f7 | 102 | * Channel to define source and asynchronous signal for. |
<> | 144:ef7eb2e8f9f7 | 103 | * |
<> | 144:ef7eb2e8f9f7 | 104 | * @param[in] source |
<> | 144:ef7eb2e8f9f7 | 105 | * Source to select for channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines. |
<> | 144:ef7eb2e8f9f7 | 106 | * |
<> | 144:ef7eb2e8f9f7 | 107 | * @param[in] signal |
<> | 144:ef7eb2e8f9f7 | 108 | * Asynchronous signal (for selected @p source) to use. Use one of the |
<> | 144:ef7eb2e8f9f7 | 109 | * PRS_CH_CTRL_SIGSEL_x defines that support asynchronous operation. |
<> | 144:ef7eb2e8f9f7 | 110 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 111 | void PRS_SourceAsyncSignalSet(unsigned int ch, |
<> | 144:ef7eb2e8f9f7 | 112 | uint32_t source, |
<> | 144:ef7eb2e8f9f7 | 113 | uint32_t signal) |
<> | 144:ef7eb2e8f9f7 | 114 | { |
<> | 144:ef7eb2e8f9f7 | 115 | EFM_ASSERT(ch < PRS_CHAN_COUNT); |
<> | 144:ef7eb2e8f9f7 | 116 | |
<> | 144:ef7eb2e8f9f7 | 117 | PRS->CH[ch].CTRL = PRS_CH_CTRL_ASYNC |
<> | 144:ef7eb2e8f9f7 | 118 | | (source & _PRS_CH_CTRL_SOURCESEL_MASK) |
<> | 144:ef7eb2e8f9f7 | 119 | | (signal & _PRS_CH_CTRL_SIGSEL_MASK) |
<> | 144:ef7eb2e8f9f7 | 120 | | PRS_CH_CTRL_EDSEL_OFF; |
<> | 144:ef7eb2e8f9f7 | 121 | } |
<> | 144:ef7eb2e8f9f7 | 122 | #endif |
<> | 144:ef7eb2e8f9f7 | 123 | |
<> | 144:ef7eb2e8f9f7 | 124 | /** @} (end addtogroup PRS) */ |
<> | 144:ef7eb2e8f9f7 | 125 | /** @} (end addtogroup EM_Library) */ |
<> | 144:ef7eb2e8f9f7 | 126 | #endif /* defined(PRS_COUNT) && (PRS_COUNT > 0) */ |