boards/stm32f746g-disco: configure ft5336 I2C peripheral and int pin

boards/stm32f746g-disco/doc.txt

@@ -28,7 +28,7 @@ Current hardware support:
 | USB OTG FS | X |  |
 | USB OTG HS | - |  |
 | TFT LCD | X |  |
-| Capacitive touch screen | - | |
+| Capacitive touch screen | X | |
 | User microphones | - | |
 | External Quad-SPI Flash | - | |
 | External SDRAM | - | |

boards/stm32f746g-disco/include/board.h

@@ -65,6 +65,16 @@ extern "C" {
 #define BTN0_MODE           GPIO_IN                 /**< BTN0 pin mode */
 /** @} */
 
+/**
+ * @name FT5X06 touch panel configuration
+ * @{
+ */
+#define FT5X06_PARAM_I2C_DEV            I2C_DEV(1)              /**< I2C device */
+#define FT5X06_PARAM_INT_PIN            GPIO_PIN(PORT_I, 13)    /**< Interrupt pin */
+#define FT5X06_PARAM_XMAX               (480)                   /**< Max width */
+#define FT5X06_PARAM_YMAX               (272)                   /**< Max height */
+/** @} */
+
 /**
  * @brief   Initialize board specific hardware
  */

boards/stm32f746g-disco/include/periph_conf.h

@@ -36,7 +36,6 @@
 
 #include "periph_cpu.h"
 #include "clk_conf.h"
-#include "cfg_i2c1_pb8_pb9.h"
 #include "cfg_rtt_default.h"
 #include "cfg_timer_tim2.h"
 #include "cfg_usb_otg_fs.h"
@@ -147,6 +146,41 @@ static const spi_conf_t spi_config[] = {
 #define SPI_NUMOF           ARRAY_SIZE(spi_config)
 /** @} */
 
+/**
+ * @name I2C configuration
+ * @{
+ */
+static const i2c_conf_t i2c_config[] = {
+    {
+        .dev            = I2C1,
+        .speed          = I2C_SPEED_NORMAL,
+        .scl_pin        = GPIO_PIN(PORT_B, 8),
+        .sda_pin        = GPIO_PIN(PORT_B, 9),
+        .scl_af         = GPIO_AF4,
+        .sda_af         = GPIO_AF4,
+        .bus            = APB1,
+        .rcc_mask       = RCC_APB1ENR_I2C1EN,
+        .irqn           = I2C1_ER_IRQn,
+    },
+    {
+        .dev            = I2C3,
+        .speed          = I2C_SPEED_NORMAL,
+        .scl_pin        = GPIO_PIN(PORT_H, 7),
+        .sda_pin        = GPIO_PIN(PORT_H, 8),
+        .scl_af         = GPIO_AF4,
+        .sda_af         = GPIO_AF4,
+        .bus            = APB1,
+        .rcc_mask       = RCC_APB1ENR_I2C3EN,
+        .irqn           = I2C3_ER_IRQn,
+    },
+};
+
+#define I2C_0_ISR           isr_i2c1_er
+#define I2C_1_ISR           isr_i2c3_er
+
+#define I2C_NUMOF           ARRAY_SIZE(i2c_config)
+/** @} */
+
 /**
  * @name ETH configuration
  * @{