Watrli plant node

boards/samr21-xpro/Makefile.features

@@ -1,2 +1,2 @@
-FEATURES_PROVIDED += transceiver periph_gpio periph_spi cpp periph_timer periph_uart periph_i2c cpp periph_rtc periph_cpuid
+FEATURES_PROVIDED += transceiver periph_gpio periph_spi cpp periph_timer periph_uart periph_i2c cpp periph_rtc periph_cpuid periph_adc
 FEATURES_MCU_GROUP = cortex_m0

boards/samr21-xpro/include/board.h

@@ -53,7 +53,7 @@ extern "C" {
  * @name Define UART device and baudrate for stdio
  * @{
  */
-#define STDIO               UART_0
+#define STDIO               UART_1
 #define STDIO_BAUDRATE      (115200U)
 #define STDIO_BUFSIZE       (64U)
 /** @} */

boards/samr21-xpro/include/periph_conf.h

@@ -14,6 +14,7 @@
  * @brief       Peripheral MCU configuration for the Atmel SAM R21 Xplained Pro board
  *
  * @author      Thomas Eichinger <[email protected]>
+ * @author      Peter Kietzmann <[email protected]>
  */
 
 #ifndef __PERIPH_CONF_H
@@ -49,9 +50,9 @@ extern "C" {
  * @name UART configuration
  * @{
  */
-#define UART_NUMOF          (1U)
+#define UART_NUMOF          (2U)
 #define UART_0_EN           1
-#define UART_1_EN           0
+#define UART_1_EN           1
 #define UART_2_EN           0
 #define UART_3_EN           0
 #define UART_IRQ_PRIO       1
@@ -69,12 +70,15 @@ extern "C" {
 
 
 /* UART 1 device configuration */
-#define UART_1_DEV
-#define UART_1_IRQ
-#define UART_1_ISR
+#define UART_1_DEV          SERCOM5->USART
+#define UART_1_IRQ          SERCOM5_IRQn
+#define UART_1_ISR          isr_sercom5
 /* UART 1 pin configuration */
-#define UART_1_PORT
-#define UART_1_PINS
+#define UART_1_PORT         (PORT->Group[0])
+#define UART_1_TX_PIN       (22)
+#define UART_1_RX_PIN       (23)
+#define UART_1_PINS         (PORT_PA22 | PORT_PA23)
+#define UART_1_REF_F        (8000000UL)
 /** @} */
 
 
@@ -245,6 +249,101 @@ extern "C" {
 #define GPIO_15_EXTINT
 /** @} */
 
+/**
+ * @ ADC Configuration
+ * @{
+ */
+#define ADC_NUMOF                          (1U)
+#define ADC_0_EN                           1
+#define ADC_MAX_CHANNELS                   8
+
+/* ADC 0 device configuration */
+#define ADC_0_DEV                          ADC
+#define ADC_0_PORT                         (PORT->Group[0])
+#define ADC_0_IRQ                          ADC_IRQn
+#define ADC_0_CHANNELS                     8
+/* ADC 0 Default values */
+#define ADC_0_CLK_SOURCE                   0 /* GCLK_GENERATOR_0 */
+#define ADC_0_PRESCALER                    ADC_CTRLB_PRESCALER_DIV4
+#define ADC_0_WINDOW_MODE                  ADC_WINCTRL_WINMODE_DISABLE
+#define ADC_0_WINDOW_LOWER                 0
+#define ADC_0_WINDOW_HIGHER                0
+
+#define SAMPLE_0_V_OFFSET                  90
+#define SAMPLE_REF_V                       2355 //2048 -> 1; 4095/3620 -> 2355
+#define ADC_0_CORRECTION_EN                1 /* enabled */
+#define ADC_0_OFFSET_CORRECTION            ADC_OFFSETCORR_OFFSETCORR(SAMPLE_0_V_OFFSET) /* refert to datasheet p.811 for calculation */
+#define ADC_0_GAIN_CORRECTION              ADC_GAINCORR_GAINCORR(SAMPLE_REF_V)
+#define ADC_0_SAMPLE_LENGTH                0 /* disabled */
+#define ADC_0_PIN_SCAN_OFFSET_START        0 /* disabled */
+#define ADC_0_PIN_SCAN_INPUT_TO_SCAN       0 /* disabled */
+#define ADC_0_LEFT_ADJUST                  0 /* disabled */
+#define ADC_0_DIFFERENTIAL_MODE            0 /* disabled */
+#define ADC_0_FREE_RUNNING                 0 /* disabled */
+#define ADC_0_EVENT_ACTION                 0 /* disabled */
+#define ADC_0_RUN_IN_STANDBY               0 /* disabled */
+
+/* ADC 0 Module Status flags */
+#define ADC_0_STATUS_RESULT_READY          (1UL << 0)
+#define ADC_0_STATUS_WINDOW                (1UL << 1)
+#define ADC_0_STATUS_OVERRUN               (1UL << 2)
+
+/* ADC 0 Positive Input Pins */
+#define ADC_0_POS_INPUT                    ADC_INPUTCTRL_MUXPOS_PIN6
+
+/* ADC 0 Negative Input Pins */     
+#define ADC_0_NEG_INPUT                    ADC_INPUTCTRL_MUXNEG_GND
+
+/* ADC 0 Gain Factor */
+#define ADC_0_GAIN_FACTOR_1X               ADC_INPUTCTRL_GAIN_1X
+#define ADC_0_GAIN_FACTOR_2X               ADC_INPUTCTRL_GAIN_2X
+#define ADC_0_GAIN_FACTOR_4X               ADC_INPUTCTRL_GAIN_4X
+#define ADC_0_GAIN_FACTOR_8X               ADC_INPUTCTRL_GAIN_8X
+#define ADC_0_GAIN_FACTOR_16X              ADC_INPUTCTRL_GAIN_16X
+/* Use this to define the value used */
+#define ADC_0_GAIN_FACTOR_DEFAULT          ADC_0_GAIN_FACTOR_1X
+
+/* ADC 0 Resolutions */    
+#define ADC_0_RES_8BIT                     ADC_CTRLB_RESSEL_8BIT
+#define ADC_0_RES_10BIT                    ADC_CTRLB_RESSEL_10BIT
+#define ADC_0_RES_12BIT                    ADC_CTRLB_RESSEL_12BIT
+#define ADC_0_RES_16BIT                    ADC_CTRLB_RESSEL_16BIT 
+
+/* ADC 0 Voltage reference */
+#define ADC_0_REF_INT_1V                   ADC_REFCTRL_REFSEL_INT1V
+#define ADC_0_REF_EXT_B                    ADC_REFCTRL_REFSEL_AREFB
+#define ADC_0_REF_COM_EN                   1
+/* Use this to define the value used */ 
+#define ADC_0_REF_DEFAULT                  ADC_0_REF_EXT_B
+
+/* ADC 0 ACCUMULATE */
+#define ADC_0_ACCUM_DISABLE                ADC_AVGCTRL_SAMPLENUM_1
+#define ADC_0_ACCUM_2                      ADC_AVGCTRL_SAMPLENUM_2
+#define ADC_0_ACCUM_4                      ADC_AVGCTRL_SAMPLENUM_4
+#define ADC_0_ACCUM_8                      ADC_AVGCTRL_SAMPLENUM_8
+#define ADC_0_ACCUM_16                     ADC_AVGCTRL_SAMPLENUM_16
+#define ADC_0_ACCUM_32                     ADC_AVGCTRL_SAMPLENUM_32
+#define ADC_0_ACCUM_64                     ADC_AVGCTRL_SAMPLENUM_64
+#define ADC_0_ACCUM_128                    ADC_AVGCTRL_SAMPLENUM_128
+#define ADC_0_ACCUM_256                    ADC_AVGCTRL_SAMPLENUM_256
+#define ADC_0_ACCUM_512                    ADC_AVGCTRL_SAMPLENUM_512
+#define ADC_0_ACCUM_1024                   ADC_AVGCTRL_SAMPLENUM_1024
+/* Use this to define the value used */
+#define ADC_0_ACCUM_DEFAULT                ADC_0_ACCUM_DISABLE 
+
+/* ADC 0 DEVIDE RESULT */
+#define ADC_0_DIV_RES_DISABLE              0
+#define ADC_0_DIV_RES_2                    1
+#define ADC_0_DIV_RES_4                    2
+#define ADC_0_DIV_RES_8                    3
+#define ADC_0_DIV_RES_16                   4
+#define ADC_0_DIV_RES_32                   5
+#define ADC_0_DIV_RES_64                   6
+#define ADC_0_DIV_RES_128                  7
+/* Use this to define the value used */
+#define ADC_0_DIV_RES_DEFAULT             ADC_0_DIV_RES_DISABLE 
+/** @} */
+
 #ifdef __cplusplus
 }
 #endif