board - msbiot: Prepare msbiot for mpu9150 driver usage

boards/msbiot/Makefile.features

@@ -1,3 +1,3 @@
 FEATURES_PROVIDED += cpp
-FEATURES_PROVIDED += periph_uart periph_gpio periph_spi periph_pwm
+FEATURES_PROVIDED += periph_uart periph_gpio periph_spi periph_i2c periph_pwm
 FEATURES_PROVIDED += transceiver

boards/msbiot/include/board.h

@@ -53,6 +53,15 @@ extern "C" {
 typedef uint8_t radio_packet_length_t;
 /** @} */
 
+/**
+ * @name Configure connected MPU-9150 device
+ * @{
+ */
+#define MPU9150_I2C         I2C_0
+#define MPU9150_HW_ADDR     (0x68)
+#define MPU9150_COMP_ADDR   (0x0E)
+/** @} */
+
 /**
  * @name Define UART device and baudrate for stdio
  * @{

boards/msbiot/include/periph_conf.h

@@ -175,6 +175,33 @@ extern "C" {
 #define SPI_0_MOSI_PORT_CLKEN()     (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
 /** @} */
 
+/**
+ * @name I2C configuration
+ * @{
+ */
+#define I2C_NUMOF           (1U)
+#define I2C_0_EN            1
+#define I2C_IRQ_PRIO        1
+#define I2C_APBCLK          (42000000U)
+
+/* I2C 0 device configuration */
+#define I2C_0_DEV           I2C1
+#define I2C_0_CLKEN()       (RCC->APB1ENR |= RCC_APB1ENR_I2C1EN)
+#define I2C_0_CLKDIS()      (RCC->APB1ENR &= ~(RCC_APB1ENR_I2C1EN))
+#define I2C_0_EVT_IRQ       I2C1_EV_IRQn
+#define I2C_0_EVT_ISR       isr_i2c1_ev
+#define I2C_0_ERR_IRQ       I2C1_ER_IRQn
+#define I2C_0_ERR_ISR       isr_i2c1_er
+/* I2C 0 pin configuration */
+#define I2C_0_SCL_PORT      GPIOB
+#define I2C_0_SCL_PIN       6
+#define I2C_0_SCL_AF        4
+#define I2C_0_SCL_CLKEN()   (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN)
+#define I2C_0_SDA_PORT      GPIOB
+#define I2C_0_SDA_PIN       7
+#define I2C_0_SDA_AF        4
+#define I2C_0_SDA_CLKEN()   (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN)
+
 /**
  * @name GPIO configuration
  * @{