configs/olimex-stm32-e407: Add IN219 support.

configs/olimex-stm32-e407/README.txt

@@ -89,3 +89,20 @@ Configurations
     you should see a device called "dac0". Now execute the app
     dac put a value at the output.
 
+  INA219:
+  ------
+    This is a configuration example for the INA219 DC current sensor. This
+    sensor works with I2C, you need to do the next connections:
+
+    INA219 VIN -> Board 3.3V
+    INA219 GND -> Board GND
+    INA219 SCL -> Board PB6 (Arduino header D1)
+    INA219 SDA -> Board PB7 (Arduino header D0)
+
+    This example is configured to work with the USBNSH instead of UART NSH, so
+    the console will be shown over the USB_OTG1 connector.
+
+    On the console, type "ls /dev " and if the registration process goes fine,
+    you should see a device called "ina219". Now execute the app
+    ina219 to see the ambient pressure value.
+

configs/olimex-stm32-e407/ina219/defconfig

@@ -0,0 +1,66 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_ARCH_FPU is not set
+# CONFIG_DEV_CONSOLE is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="olimex-stm32-e407"
+CONFIG_ARCH_BOARD_OLIMEX_STM32E407=y
+CONFIG_ARCH_BUTTONS=y
+CONFIG_ARCH_CHIP_STM32=y
+CONFIG_ARCH_CHIP_STM32F407ZG=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_USBDEVCTRL=y
+CONFIG_BOARD_LATE_INITIALIZE=y
+CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_CONSOLE=y
+CONFIG_CDCACM_RXBUFSIZE=256
+CONFIG_CDCACM_TXBUFSIZE=256
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_INA219=y
+CONFIG_FS_PROCFS=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_IDLETHREAD_STACKSIZE=2048
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MAX_TASKS=16
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_MM_REGIONS=2
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_PREALLOC_WDOGS=8
+CONFIG_RAM_SIZE=114688
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_SENSORS=y
+CONFIG_SENSORS_INA219=y
+CONFIG_START_DAY=27
+CONFIG_START_YEAR=2013
+CONFIG_STM32_I2C1=y
+CONFIG_STM32_JTAG_SW_ENABLE=y
+CONFIG_STM32_OTGFS=y
+CONFIG_STM32_PWR=y
+CONFIG_STM32_USART2=y
+CONFIG_SYSLOG_CHAR=y
+CONFIG_SYSLOG_DEVPATH="/dev/ttyS0"
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NSH_CXXINITIALIZE=y
+CONFIG_USBDEV=y
+CONFIG_USER_ENTRYPOINT="nsh_main"
+CONFIG_WDOG_INTRESERVE=1

configs/olimex-stm32-e407/src/Makefile

@@ -88,5 +88,9 @@ ifeq ($(CONFIG_DAC),y)
 CSRCS += stm32_dac.c
 endif
 
+ifeq ($(CONFIG_SENSORS_INA219),y)
+CSRCS += stm32_ina219.c
+endif
+
 include $(TOPDIR)/configs/Board.mk
 

configs/olimex-stm32-e407/src/olimex-stm32-e407.h

@@ -305,5 +305,23 @@ int stm32_bmp180initialize(FAR const char *devpath);
 int stm32_dac_setup(void);
 #endif
 
+/************************************************************************************
+ * Name: stm32_ina219initialize
+ *
+ * Description:
+ *   Initialize and register the INA219 voltage/current sensor.
+ *
+ * Input parameters:
+ *   devpath - The full path to the driver to register. E.g., "/dev/ina219"
+ *
+ * Returned Value:
+ *   Zero (OK) on success; a negated errno value on failure.
+ *
+ ************************************************************************************/
+
+#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_INA219)
+int stm32_ina219initialize(FAR const char *devpath);
+#endif
+
 #endif  /* __ASSEMBLY__ */
 #endif /* __CONFIGS_OLIMEX_STM32_E407_SRC_INTERNAL_H */

configs/olimex-stm32-e407/src/stm32_bringup.c

@@ -239,6 +239,16 @@ int stm32_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_SENSORS_INA219
+  /* Configure and initialize the INA219 sensor */
+
+  ret = stm32_ina219initialize("/dev/ina219");
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: stm32_ina219initialize() failed: %d\n", ret);
+    }
+#endif
+
   UNUSED(ret);
   return OK;
 }

configs/olimex-stm32-e407/src/stm32_ina219.c

@@ -0,0 +1,107 @@
+/************************************************************************************
+ * configs/olimex-stm32-e407/src/stm32_ina219.c
+ *
+ *   Copyright (C) 2018 Erle Robotics (Juan Flores Muñoz). All rights reserved.
+ *   Author: Erle Robotics (Juan Flores Muñoz) <juan@erlerobotics.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 <errno.h>
+#include <syslog.h>
+
+#include <nuttx/spi/spi.h>
+#include <nuttx/sensors/ina219.h>
+
+#include "stm32.h"
+#include "stm32_i2c.h"
+#include "olimex-stm32-e407.h"
+
+#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_INA219)
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+#define INA219_I2C_PORTNO 1   /* On I2C1 */
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_ina219initialize
+ *
+ * Description:
+ *   Initialize and register the INA219 voltage/current sensor.
+ *
+ * Input parameters:
+ *   devpath - The full path to the driver to register. E.g., "/dev/ina219"
+ *
+ * Returned Value:
+ *   Zero (OK) on success; a negated errno value on failure.
+ *
+ ************************************************************************************/
+
+int stm32_ina219initialize(FAR const char *devpath)
+{
+  FAR struct i2c_master_s *i2c;
+  int ret;
+
+  sninfo("Initializing INA219!\n");
+
+  /* Initialize I2C */
+
+  i2c = stm32_i2cbus_initialize(INA219_I2C_PORTNO);
+
+  if (!i2c)
+    {
+      return -ENODEV;
+    }
+
+  /* Then register the sensor */
+
+  ret = ina219_register(devpath, i2c,0x40,100000,0x00);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: Error registering hih6130\n");
+    }
+
+  return ret;
+}
+
+#endif /* CONFIG_I2C && CONFIG_SENSORS_INA219 */
+