boards/xg23-pk6068a: add ADC lines

RIOT-OS · Nov 22, 2022 · ab86198 · ab86198
1 parent 18e9167
commit ab86198
Show file tree

Hide file tree

Showing 5 changed files with 40 additions and 0 deletions.
diff --git a/boards/xg23-pk6068a/Kconfig b/boards/xg23-pk6068a/Kconfig
@@ -13,6 +13,7 @@ config BOARD_XG23_PK6068A
     select CPU_MODEL_EFR32ZG23A020F512GM48
 
     # Put defined MCU peripherals here (in alphabetical order)
+    select HAS_PERIPH_ADC
     select HAS_PERIPH_I2C
     select HAS_PERIPH_SPI
     select HAS_PERIPH_TIMER

diff --git a/boards/xg23-pk6068a/Makefile.features b/boards/xg23-pk6068a/Makefile.features
@@ -3,6 +3,7 @@ CPU_FAM = efr32zg23
 CPU_MODEL = efr32zg23a020f512gm48
 
 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_i2c
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer

diff --git a/boards/xg23-pk6068a/doc.txt b/boards/xg23-pk6068a/doc.txt
@@ -67,6 +67,8 @@ PIN 1 is the bottom-left contact when the header faces  you horizontally.
 | Timer      | 0       | TIMER0          |                                | Default ztimer backend           | EM1             |
 |            | 1       | LETIMER0        |                                |                                  | EM3             |
 | UART       | 0       | EUSART1         | RX: PA9, TX: PA8               | Default STDIO output             | EM1             |
+| ADC_LINE   | 0       | IADC0           | IN+: PA10, IN-: GND            | Single-ended, V_ref: 2 * 1.21V   | EM1             |
+|            | 1       | IADC0           | IN+: PA0, IN-:PA5              | Differential, V_ref: 2 * 1.21V   | EM1             |
 
 ### User interface
 | Peripheral | Mapped to | Pin  | Comments   |

diff --git a/boards/xg23-pk6068a/include/periph_conf.h b/boards/xg23-pk6068a/include/periph_conf.h
@@ -55,6 +55,38 @@ static const clk_div_t clk_div_config[] = {
 #define CLK_DIV_NUMOF         ARRAY_SIZE(clk_div_config)
 /** @} */
 
+/**
+ * @name    ADC configuration
+ * @{
+ */
+static const adc_conf_t adc_config[] = {
+    {
+        .dev = IADC0,
+        .cmu = cmuClock_IADC0,
+        .reference = iadcCfgReferenceInt1V2,
+        .reference_mV = 1210,
+        .gain = iadcCfgAnalogGain0P5x,
+        .available_res = { ADC_RES_10BIT, ADC_RES_16BIT }
+    }
+};
+
+static const adc_chan_conf_t adc_channel_config[] = {
+    {
+        .dev = 0,
+        .input_pos = GPIO_PIN(PA, 10),
+        .input_neg = GPIO_UNDEF
+    },
+    {
+        .dev = 0,
+        .input_pos = GPIO_PIN(PA, 0),
+        .input_neg = GPIO_PIN(PA, 5)
+    },
+};
+
+#define ADC_DEV_NUMOF       ARRAY_SIZE(adc_config)
+#define ADC_NUMOF           ARRAY_SIZE(adc_channel_config)
+/** @} */
+
 /**
  * @name    I2C configuration
  * @{

diff --git a/dist/tools/doccheck/exclude_patterns b/dist/tools/doccheck/exclude_patterns
@@ -13133,3 +13133,7 @@ boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member timer_config
 boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member UART_0_ISR_RX \(macro definition\) of file periph_conf\.h is not documented\.
 boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member UART_NUMOF \(macro definition\) of file periph_conf\.h is not documented\.
 boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member uart_config\[\] \(variable\) of file periph_conf\.h is not documented\.
+boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member ADC_DEV_NUMOF \(macro definition\) of file periph_conf\.h is not documented\.
+boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member ADC_NUMOF \(macro definition\) of file periph_conf\.h is not documented\.
+boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member adc_config\[\] \(variable\) of file periph_conf\.h is not documented\.
+boards/xg23\-pk6068a/include/periph_conf\.h:[0-9]+: warning: Member adc_channel_config\[\] \(variable\) of file periph_conf\.h is not documented\.