The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Dependents: hello SerialTestv11 SerialTestv12 Sierpinski ... more
mbed 2
This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.
TARGET_NUCLEO_L011K4/TOOLCHAIN_ARM_MICRO/i2c_device.h@171:3a7713b1edbc, 2018-11-08 (annotated)
- Committer:
- AnnaBridge
- Date:
- Thu Nov 08 11:45:42 2018 +0000
- Revision:
- 171:3a7713b1edbc
- Parent:
- TARGET_DISCO_L072CZ_LRWAN1/TARGET_STM/TARGET_STM32L0/i2c_device.h@170:e95d10626187
- Child:
- 172:65be27845400
mbed library. Release version 164
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AnnaBridge | 143:86740a56073b | 1 | /* mbed Microcontroller Library |
AnnaBridge | 143:86740a56073b | 2 | ******************************************************************************* |
AnnaBridge | 143:86740a56073b | 3 | * Copyright (c) 2015, STMicroelectronics |
AnnaBridge | 143:86740a56073b | 4 | * All rights reserved. |
AnnaBridge | 143:86740a56073b | 5 | * |
AnnaBridge | 143:86740a56073b | 6 | * Redistribution and use in source and binary forms, with or without |
AnnaBridge | 143:86740a56073b | 7 | * modification, are permitted provided that the following conditions are met: |
AnnaBridge | 143:86740a56073b | 8 | * |
AnnaBridge | 143:86740a56073b | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
AnnaBridge | 143:86740a56073b | 10 | * this list of conditions and the following disclaimer. |
AnnaBridge | 143:86740a56073b | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
AnnaBridge | 143:86740a56073b | 12 | * this list of conditions and the following disclaimer in the documentation |
AnnaBridge | 143:86740a56073b | 13 | * and/or other materials provided with the distribution. |
AnnaBridge | 143:86740a56073b | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
AnnaBridge | 143:86740a56073b | 15 | * may be used to endorse or promote products derived from this software |
AnnaBridge | 143:86740a56073b | 16 | * without specific prior written permission. |
AnnaBridge | 143:86740a56073b | 17 | * |
AnnaBridge | 143:86740a56073b | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
AnnaBridge | 143:86740a56073b | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
AnnaBridge | 143:86740a56073b | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
AnnaBridge | 143:86740a56073b | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
AnnaBridge | 143:86740a56073b | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
AnnaBridge | 143:86740a56073b | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
AnnaBridge | 143:86740a56073b | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
AnnaBridge | 143:86740a56073b | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
AnnaBridge | 143:86740a56073b | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
AnnaBridge | 143:86740a56073b | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
AnnaBridge | 143:86740a56073b | 28 | ******************************************************************************* |
AnnaBridge | 143:86740a56073b | 29 | */ |
AnnaBridge | 143:86740a56073b | 30 | #ifndef MBED_I2C_DEVICE_H |
AnnaBridge | 143:86740a56073b | 31 | #define MBED_I2C_DEVICE_H |
AnnaBridge | 143:86740a56073b | 32 | |
AnnaBridge | 143:86740a56073b | 33 | #include "cmsis.h" |
AnnaBridge | 143:86740a56073b | 34 | |
AnnaBridge | 143:86740a56073b | 35 | #ifdef __cplusplus |
AnnaBridge | 143:86740a56073b | 36 | extern "C" { |
AnnaBridge | 143:86740a56073b | 37 | #endif |
AnnaBridge | 143:86740a56073b | 38 | |
AnnaBridge | 143:86740a56073b | 39 | #ifdef DEVICE_I2C |
AnnaBridge | 143:86740a56073b | 40 | |
AnnaBridge | 143:86740a56073b | 41 | #define I2C_IP_VERSION_V2 |
AnnaBridge | 143:86740a56073b | 42 | |
AnnaBridge | 143:86740a56073b | 43 | #if defined I2C1_BASE |
AnnaBridge | 143:86740a56073b | 44 | #define I2C1_EV_IRQn I2C1_IRQn |
AnnaBridge | 143:86740a56073b | 45 | #define I2C1_ER_IRQn I2C1_IRQn |
AnnaBridge | 143:86740a56073b | 46 | #endif |
AnnaBridge | 143:86740a56073b | 47 | #if defined I2C2_BASE |
AnnaBridge | 143:86740a56073b | 48 | #define I2C2_EV_IRQn I2C2_IRQn |
AnnaBridge | 143:86740a56073b | 49 | #define I2C2_ER_IRQn I2C2_IRQn |
AnnaBridge | 143:86740a56073b | 50 | #endif |
AnnaBridge | 143:86740a56073b | 51 | #if defined I2C3_BASE |
AnnaBridge | 143:86740a56073b | 52 | #define I2C3_EV_IRQn I2C3_IRQn |
AnnaBridge | 143:86740a56073b | 53 | #define I2C3_ER_IRQn I2C3_IRQn |
AnnaBridge | 143:86740a56073b | 54 | #endif |
AnnaBridge | 143:86740a56073b | 55 | |
AnnaBridge | 143:86740a56073b | 56 | #define I2C_IT_ALL (I2C_IT_ERRI|I2C_IT_TCI|I2C_IT_STOPI|I2C_IT_NACKI|I2C_IT_ADDRI|I2C_IT_RXI|I2C_IT_TXI) |
AnnaBridge | 143:86740a56073b | 57 | |
AnnaBridge | 143:86740a56073b | 58 | /* Family specifc settings for clock source */ |
AnnaBridge | 143:86740a56073b | 59 | #define I2CAPI_I2C1_CLKSRC RCC_I2C1CLKSOURCE_SYSCLK |
AnnaBridge | 143:86740a56073b | 60 | #define I2CAPI_I2C3_CLKSRC RCC_I2C3CLKSOURCE_SYSCLK |
AnnaBridge | 143:86740a56073b | 61 | #define I2CAPI_I2C4_CLKSRC RCC_I2C4CLKSOURCE_SYSCLK |
AnnaBridge | 143:86740a56073b | 62 | |
AnnaBridge | 143:86740a56073b | 63 | /* Provide the suitable timing depending on requested frequencie */ |
AnnaBridge | 143:86740a56073b | 64 | static inline uint32_t get_i2c_timing(int hz) |
AnnaBridge | 143:86740a56073b | 65 | { |
AnnaBridge | 143:86740a56073b | 66 | uint32_t tim = 0; |
AnnaBridge | 143:86740a56073b | 67 | |
AnnaBridge | 143:86740a56073b | 68 | switch (hz) { |
AnnaBridge | 143:86740a56073b | 69 | case 100000: |
AnnaBridge | 143:86740a56073b | 70 | tim = 0x20602938; // Standard mode with Rise Time = 400ns and Fall Time = 100ns |
AnnaBridge | 170:e95d10626187 | 71 | break; |
AnnaBridge | 143:86740a56073b | 72 | case 400000: |
AnnaBridge | 170:e95d10626187 | 73 | tim = 0x00B0122A; // Fast mode with Rise Time = 250ns and Fall Time = 100ns |
AnnaBridge | 143:86740a56073b | 74 | break; |
AnnaBridge | 143:86740a56073b | 75 | case 1000000: |
AnnaBridge | 143:86740a56073b | 76 | tim = 0x0030040E; // Fast mode Plus with Rise Time = 60ns and Fall Time = 100ns |
AnnaBridge | 143:86740a56073b | 77 | break; |
AnnaBridge | 143:86740a56073b | 78 | default: |
AnnaBridge | 143:86740a56073b | 79 | break; |
AnnaBridge | 143:86740a56073b | 80 | } |
AnnaBridge | 143:86740a56073b | 81 | return tim; |
AnnaBridge | 143:86740a56073b | 82 | } |
AnnaBridge | 143:86740a56073b | 83 | |
AnnaBridge | 143:86740a56073b | 84 | #ifdef __cplusplus |
AnnaBridge | 143:86740a56073b | 85 | } |
AnnaBridge | 143:86740a56073b | 86 | #endif |
AnnaBridge | 143:86740a56073b | 87 | |
AnnaBridge | 143:86740a56073b | 88 | #endif // DEVICE_I2C |
AnnaBridge | 143:86740a56073b | 89 | |
AnnaBridge | 143:86740a56073b | 90 | #endif |