ON Semiconductor / mbed-os

5.2.1 - Updated I2C files

Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

targets/TARGET_STM/TARGET_STM32F3/spi_api.c@1:f30bdcd2b33b, 2017-02-27 (annotated)

Committer:
jacobjohnson
Date:
Mon Feb 27 17:45:05 2017 +0000
Revision:
1:f30bdcd2b33b
Parent:
0:098463de4c5d 
changed the inputscale from 1 to 7 in analogin_api.c.  This will need to be changed later, and accessed from the main level, but for now this allows the  adc to read a value from 0 to 3.7V, instead of just up to 1V.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
group-onsemi 0:098463de4c5d 1 /* mbed Microcontroller Library
group-onsemi 0:098463de4c5d 2 *******************************************************************************
group-onsemi 0:098463de4c5d 3 * Copyright (c) 2014, STMicroelectronics
group-onsemi 0:098463de4c5d 4 * All rights reserved.
group-onsemi 0:098463de4c5d 5 *
group-onsemi 0:098463de4c5d 6 * Redistribution and use in source and binary forms, with or without
group-onsemi 0:098463de4c5d 7 * modification, are permitted provided that the following conditions are met:
group-onsemi 0:098463de4c5d 8 *
group-onsemi 0:098463de4c5d 9 * 1. Redistributions of source code must retain the above copyright notice,
group-onsemi 0:098463de4c5d 10 * this list of conditions and the following disclaimer.
group-onsemi 0:098463de4c5d 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
group-onsemi 0:098463de4c5d 12 * this list of conditions and the following disclaimer in the documentation
group-onsemi 0:098463de4c5d 13 * and/or other materials provided with the distribution.
group-onsemi 0:098463de4c5d 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
group-onsemi 0:098463de4c5d 15 * may be used to endorse or promote products derived from this software
group-onsemi 0:098463de4c5d 16 * without specific prior written permission.
group-onsemi 0:098463de4c5d 17 *
group-onsemi 0:098463de4c5d 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
group-onsemi 0:098463de4c5d 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
group-onsemi 0:098463de4c5d 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
group-onsemi 0:098463de4c5d 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
group-onsemi 0:098463de4c5d 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
group-onsemi 0:098463de4c5d 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
group-onsemi 0:098463de4c5d 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
group-onsemi 0:098463de4c5d 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
group-onsemi 0:098463de4c5d 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
group-onsemi 0:098463de4c5d 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
group-onsemi 0:098463de4c5d 28 *******************************************************************************
group-onsemi 0:098463de4c5d 29 */
group-onsemi 0:098463de4c5d 30 #include "mbed_assert.h"
group-onsemi 0:098463de4c5d 31 #include "mbed_error.h"
group-onsemi 0:098463de4c5d 32 #include "spi_api.h"
group-onsemi 0:098463de4c5d 33
group-onsemi 0:098463de4c5d 34 #if DEVICE_SPI
group-onsemi 0:098463de4c5d 35
group-onsemi 0:098463de4c5d 36 #include "cmsis.h"
group-onsemi 0:098463de4c5d 37 #include "pinmap.h"
group-onsemi 0:098463de4c5d 38 #include "PeripheralPins.h"
group-onsemi 0:098463de4c5d 39
group-onsemi 0:098463de4c5d 40
group-onsemi 0:098463de4c5d 41 #if DEVICE_SPI_ASYNCH
group-onsemi 0:098463de4c5d 42 #define SPI_S(obj) (( struct spi_s *)(&(obj->spi)))
group-onsemi 0:098463de4c5d 43 #else
group-onsemi 0:098463de4c5d 44 #define SPI_S(obj) (( struct spi_s *)(obj))
group-onsemi 0:098463de4c5d 45 #endif
group-onsemi 0:098463de4c5d 46
group-onsemi 0:098463de4c5d 47 /*
group-onsemi 0:098463de4c5d 48 * Only the frequency is managed in the family specific part
group-onsemi 0:098463de4c5d 49 * the rest of SPI management is common to all STM32 families
group-onsemi 0:098463de4c5d 50 */
group-onsemi 0:098463de4c5d 51 int spi_get_clock_freq(spi_t *obj) {
group-onsemi 0:098463de4c5d 52 struct spi_s *spiobj = SPI_S(obj);
group-onsemi 0:098463de4c5d 53 int spi_hz = 0;
group-onsemi 0:098463de4c5d 54
group-onsemi 0:098463de4c5d 55 /* Get source clock depending on SPI instance */
group-onsemi 0:098463de4c5d 56 switch ((int)spiobj->spi) {
group-onsemi 0:098463de4c5d 57 #if defined SPI1_BASE
group-onsemi 0:098463de4c5d 58 case SPI_1:
group-onsemi 0:098463de4c5d 59 /* SPI_1. Source CLK is PCKL2 */
group-onsemi 0:098463de4c5d 60 spi_hz = HAL_RCC_GetPCLK2Freq();
group-onsemi 0:098463de4c5d 61 break;
group-onsemi 0:098463de4c5d 62 #endif
group-onsemi 0:098463de4c5d 63 #if defined SPI2_BASE
group-onsemi 0:098463de4c5d 64 case SPI_2:
group-onsemi 0:098463de4c5d 65 #endif
group-onsemi 0:098463de4c5d 66 #if defined SPI3_BASE
group-onsemi 0:098463de4c5d 67 case SPI_3:
group-onsemi 0:098463de4c5d 68 #endif
group-onsemi 0:098463de4c5d 69 #if defined SPI4_BASE
group-onsemi 0:098463de4c5d 70 case SPI_4:
group-onsemi 0:098463de4c5d 71 #endif
group-onsemi 0:098463de4c5d 72 /* SPI_2 and SPI_3. Source CLK is PCKL1 */
group-onsemi 0:098463de4c5d 73 spi_hz = HAL_RCC_GetPCLK1Freq();
group-onsemi 0:098463de4c5d 74 break;
group-onsemi 0:098463de4c5d 75 default:
group-onsemi 0:098463de4c5d 76 error("CLK: SPI instance not set");
group-onsemi 0:098463de4c5d 77 break;
group-onsemi 0:098463de4c5d 78 }
group-onsemi 0:098463de4c5d 79 return spi_hz;
group-onsemi 0:098463de4c5d 80 }
group-onsemi 0:098463de4c5d 81
group-onsemi 0:098463de4c5d 82 #endif