STM32F746-Disco: Add ADC3 support.
This commit is contained in:
Ivan Ucherdzhiev
Gregory Nutt
parent
4c1a8170de
commit
aac877a268
@ -52,6 +52,10 @@ ifeq ($(CONFIG_LIB_BOARDCTL),y)
|
||||
CSRCS += stm32_appinitialize.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_ADC),y)
|
||||
CSRCS += stm32_adc.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_ARCH_FPU),y)
|
||||
CSRCS += stm32_ostest.c
|
||||
endif
|
||||
|
||||
165
configs/stm32f746g-disco/src/stm32_adc.c
Normal file
165
configs/stm32f746g-disco/src/stm32_adc.c
Normal file
@ -0,0 +1,165 @@
|
||||
/****************************************************************************
|
||||
* configs/stm32f334-disco/src/stm32_adc.c
|
||||
*
|
||||
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
|
||||
* Author: Ivan Ucherdzhiev <ivanucherdjiev@gmail.com>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/board.h>
|
||||
#include <nuttx/analog/adc.h>
|
||||
|
||||
#include "stm32_gpio.h"
|
||||
#include "stm32_adc.h"
|
||||
|
||||
#ifndef CONFIG_STM32F7_ADC3
|
||||
# error "Only ADC3 channels are availiable on the arduino header of the board"
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_ADC) && defined(CONFIG_STM32F7_ADC3)
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Configuration ************************************************************/
|
||||
|
||||
/* If DMA support is not enabled, then only a single channel
|
||||
* can be sampled. Otherwise, data overruns would occur.
|
||||
*/
|
||||
|
||||
#ifdef ADC_HAVE_DMA
|
||||
# define ADC3_NCHANNELS 6
|
||||
#else
|
||||
# define ADC3_NCHANNELS 1
|
||||
#endif
|
||||
|
||||
/* The number of ADC channels in the conversion list */
|
||||
/* TODO DMA */
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/* Identifying number of each ADC channel (even if NCHANNELS is less ) */
|
||||
|
||||
static const uint8_t g_chanlist[6] =
|
||||
{
|
||||
0,
|
||||
4,
|
||||
5,
|
||||
6,
|
||||
7,
|
||||
8
|
||||
};
|
||||
|
||||
/* Configurations of pins used by each ADC channel */
|
||||
|
||||
static const uint32_t g_pinlist[6] =
|
||||
{
|
||||
GPIO_ADC3_IN0, /* PA0/A0 */
|
||||
GPIO_ADC3_IN4, /* PF/A1 */
|
||||
GPIO_ADC3_IN5, /* PF7/A3 */
|
||||
GPIO_ADC3_IN6, /* PF8/A0 */
|
||||
GPIO_ADC3_IN7, /* PF9/A1 */
|
||||
GPIO_ADC3_IN8 /* PF10/A3 */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: stm32_adc_setup
|
||||
*
|
||||
* Description:
|
||||
* Initialize ADC and register the ADC driver.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int stm32_adc_setup(void)
|
||||
{
|
||||
#ifdef CONFIG_STM32F7_ADC3
|
||||
static bool initialized = false;
|
||||
struct adc_dev_s *adc;
|
||||
int ret;
|
||||
int i;
|
||||
|
||||
/* Check if we have already initialized */
|
||||
|
||||
if (!initialized)
|
||||
{
|
||||
/* Configure the pins as analog inputs for the selected channels */
|
||||
|
||||
for (i = 0; i < ADC3_NCHANNELS; i++)
|
||||
{
|
||||
stm32_configgpio(g_pinlist[i]);
|
||||
}
|
||||
|
||||
/* Call stm32_adcinitialize() to get an instance of the ADC interface */
|
||||
|
||||
adc = stm32_adc_initialize(3, g_chanlist, ADC3_NCHANNELS);
|
||||
if (adc == NULL)
|
||||
{
|
||||
aerr("ERROR: Failed to get ADC interface\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Register the ADC driver at "/dev/adc0" */
|
||||
|
||||
ret = adc_register("/dev/adc3", adc);
|
||||
if (ret < 0)
|
||||
{
|
||||
aerr("ERROR: adc_register failed: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Now we are initialized */
|
||||
|
||||
initialized = true;
|
||||
}
|
||||
|
||||
return OK;
|
||||
#else
|
||||
return -ENOSYS;
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif /* (CONFIG_ADC) && (CONFIG_STM32F7_ADC3) */
|
||||
@ -1,7 +1,7 @@
|
||||
/****************************************************************************************************
|
||||
* configs/stm32f746g-disco/src/stm32f746g-disco.h
|
||||
*
|
||||
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
|
||||
* Copyright (C) 2015, 2017 Gregory Nutt. All rights reserved.
|
||||
* Authors: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@ -120,6 +120,18 @@
|
||||
|
||||
int stm32_bringup(void);
|
||||
|
||||
/****************************************************************************************************
|
||||
* Name: stm32_adc_setup
|
||||
*
|
||||
* Description:
|
||||
* Initialize ADC and register the ADC driver.
|
||||
*
|
||||
****************************************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ADC
|
||||
int stm32_adc_setup(void);
|
||||
#endif
|
||||
|
||||
/****************************************************************************************************
|
||||
* Name: stm32_spidev_initialize
|
||||
*
|
||||
@ -143,5 +155,5 @@ void arch_sporadic_initialize(void);
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __CONFIGS_STM32F746G_DISCO_SRC_STM32F746G_DISCO_H */
|
||||
|
||||
#endif /* __CONFIGS_STM32F746G_DISCO_SRC_STM32F746G_DISCO_H */
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user