Update repo

apps/05_button_exti_irq/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.20.0)
+
+# Locate the Zephyr build system as a CMake package
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+# Project name
+project(button_exti_irq)
+
+# Add source files belong to this application
+target_sources(app PRIVATE src/main.c)

apps/05_button_exti_irq/boards/nucleo_f767zi.overlay

@@ -0,0 +1,33 @@
+/ {
+    aliases {
+        led0 = &red_led;
+        led1 = &blue_led;
+        led2 = &green_led;
+		sw0 = &user_button0;
+    };
+	
+	gpio_keys {
+		compatible = "gpio-keys";
+		
+		user_button0: button {
+			label = "Button";
+			gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+};
+
+&adc1{
+    pinctrl-0 = <&adc1_in1_pa1 &adc1_in4_pa4 &adc1_in8_pb0>;
+    pinctrl-names = "default";
+	st,adc-prescaler = <4>;
+	status = "okay";
+};
+
+/*---Uncomment this block ONLY if your build complains the labels are undeclared---
+&pinctrl{
+    adc1_in1_pa1: adc1_in1_pa1 { pinmux = <STM32_PINMUX('A', 1, ANALOG)>; }
+    adc1_in4_pa4: adc1_in4_pa4 { pinmux = <STM32_PINMUX('A', 4, ANALOG)>; }
+    adc1_in8_pb0: adc1_in8_pb0 { pinmux = <STM32_PINMUX('B', 0, ANALOG)>; }
+}
+*/

apps/05_button_exti_irq/boards/stm32f4_disco.overlay

@@ -0,0 +1,24 @@
+/ {
+    aliases {
+        led0 = &red_led_5;
+        led1 = &blue_led_6;
+        led2 = &green_led_4;
+        led3 = &orange_led_3;
+		sw0 = &user_button;
+    };
+};
+
+&adc1{
+    pinctrl-0 = <&adc1_in1_pa1 &adc1_in4_pa4 &adc1_in8_pb0>;
+    pinctrl-names = "default";
+	st,adc-prescaler = <4>;
+	status = "okay";
+};
+
+/*---Uncomment this block ONLY if your build complains the labels are undeclared---
+&pinctrl{
+    adc1_in1_pa1: adc1_in1_pa1 { pinmux = <STM32_PINMUX('A', 1, ANALOG)>; }
+    adc1_in4_pa4: adc1_in4_pa4 { pinmux = <STM32_PINMUX('A', 4, ANALOG)>; }
+    adc1_in8_pb0: adc1_in8_pb0 { pinmux = <STM32_PINMUX('B', 0, ANALOG)>; }
+}
+*/

apps/05_button_exti_irq/prj.conf

@@ -0,0 +1,7 @@
+CONFIG_GPIO=y
+CONFIG_CONSOLE=y
+CONFIG_PRINTK=y
+CONFIG_SERIAL=y
+CONFIG_ADC=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+

apps/05_button_exti_irq/src/main.c

@@ -0,0 +1,66 @@
+#include <zephyr/kernel.h>
+#include <zephyr/device.h>
+#include <zephyr/devicetree.h>
+#include <zephyr/sys/printk.h>
+#include <zephyr/drivers/gpio.h>
+#include <zephyr/drivers/uart.h>
+#include <zephyr/drivers/adc.h>
+
+
+#if !DT_NODE_HAS_STATUS(DT_ALIAS(sw0), okay)
+#error "Board does not define alias sw0. Add a boad overlay"
+#endif
+
+static const struct gpio_dt_spec button = 
+    GPIO_DT_SPEC_GET(DT_ALIAS(sw0), gpios); 
+
+static struct gpio_callback button_cb;
+
+
+static void button_isr(const struct device *port, 
+                       struct gpio_callback *cb, 
+                       gpio_port_pins_t pins)
+{
+    ARG_UNUSED(port);
+    ARG_UNUSED(pins);
+    ARG_UNUSED(cb);
+
+    // Do something
+    int v = gpio_pin_get_dt(&button);
+    
+    if(v >= 0) {
+        printk("[IRQ] Button state: %s\r\n", v ? "ACTIVE" : "INVACTIVE");
+    }
+
+}
+
+
+int main(void)
+{
+    if(!device_is_ready(button.port)) {
+        return 0;
+    }
+
+    if(gpio_pin_configure_dt(&button, GPIO_INPUT) != 0) {
+        return 0;
+    }
+
+    // Set up callback and register it
+    gpio_init_callback(&button_cb, button_isr, BIT(button.pin));
+    gpio_add_callback(button.port, &button_cb);
+
+
+    if(gpio_pin_interrupt_configure_dt(&button, GPIO_INT_EDGE_BOTH) != 0) {
+        return 0;
+    }
+
+    printk("\r\n[EXTI] Button pin interrupt is ready. Press button\r\n");
+
+	while (1) {
+
+		k_sleep(K_FOREVER);
+
+	}
+
+	return 0;
+}

apps/06_adc_pa1_irq/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.20.0)
+
+# Locate the Zephyr build system as a CMake package
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+# Project name
+project(adc_pa1_irq)
+
+# Add source files belong to this application
+target_sources(app PRIVATE src/main.c)

apps/06_adc_pa1_irq/boards/nucleo_f767zi.overlay

@@ -0,0 +1,33 @@
+/ {
+    aliases {
+        led0 = &red_led;
+        led1 = &blue_led;
+        led2 = &green_led;
+		sw0 = &user_button0;
+    };
+	
+	gpio_keys {
+		compatible = "gpio-keys";
+		
+		user_button0: button {
+			label = "Button";
+			gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+};
+
+&adc1{
+    pinctrl-0 = <&adc1_in1_pa1>;
+    pinctrl-names = "default";
+	st,adc-prescaler = <4>;
+	status = "okay";
+};
+
+/*---Uncomment this block ONLY if your build complains the labels are undeclared---
+&pinctrl{
+    adc1_in1_pa1: adc1_in1_pa1 { pinmux = <STM32_PINMUX('A', 1, ANALOG)>; }
+    adc1_in4_pa4: adc1_in4_pa4 { pinmux = <STM32_PINMUX('A', 4, ANALOG)>; }
+    adc1_in8_pb0: adc1_in8_pb0 { pinmux = <STM32_PINMUX('B', 0, ANALOG)>; }
+}
+*/

apps/06_adc_pa1_irq/boards/stm32f4_disco.overlay

@@ -0,0 +1,24 @@
+/ {
+    aliases {
+        led0 = &red_led_5;
+        led1 = &blue_led_6;
+        led2 = &green_led_4;
+        led3 = &orange_led_3;
+		sw0 = &user_button;
+    };
+};
+
+&adc1{
+    pinctrl-0 = <&adc1_in1_pa1>;
+    pinctrl-names = "default";
+	st,adc-prescaler = <4>;
+	status = "okay";
+};
+
+/*---Uncomment this block ONLY if your build complains the labels are undeclared---
+&pinctrl{
+    adc1_in1_pa1: adc1_in1_pa1 { pinmux = <STM32_PINMUX('A', 1, ANALOG)>; }
+    adc1_in4_pa4: adc1_in4_pa4 { pinmux = <STM32_PINMUX('A', 4, ANALOG)>; }
+    adc1_in8_pb0: adc1_in8_pb0 { pinmux = <STM32_PINMUX('B', 0, ANALOG)>; }
+}
+*/

apps/06_adc_pa1_irq/prj.conf

@@ -0,0 +1,7 @@
+CONFIG_GPIO=y
+CONFIG_CONSOLE=y
+CONFIG_PRINTK=y
+CONFIG_SERIAL=y
+CONFIG_ADC=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+

apps/06_adc_pa1_irq/src/main.c

@@ -0,0 +1,110 @@
+#include <zephyr/kernel.h>
+#include <zephyr/device.h>
+#include <zephyr/devicetree.h>
+#include <zephyr/sys/printk.h>
+#include <zephyr/drivers/gpio.h>
+#include <zephyr/drivers/uart.h>
+#include <zephyr/drivers/adc.h>
+
+
+#define ADC_NODE DT_NODELABEL(adc1)
+#define ADC_SAMPLE_PERIOD K_MSEC(50)
+
+#if !DT_NODE_HAS_STATUS(ADC_NODE, okay)
+#error "ADC1 not available; enable it in a board overlay if needed."
+#endif
+
+static const struct device *const adc_dev = 
+    DEVICE_DT_GET(ADC_NODE);
+
+static void adc_sample_work_handler(struct k_work *work);
+
+static enum adc_action adc_cb(const struct device *dev,
+                              const struct adc_sequence *sequence,
+                              uint16_t sampling_index);
+
+static K_WORK_DELAYABLE_DEFINE(adc_sample_work, adc_sample_work_handler);
+
+
+static uint16_t sample;
+
+
+static struct adc_sequence_options seq_opts = {
+    .interval_us     = 0, // Let driver decide
+    .extra_samplings = 0, // One-shot, resubmit work continuously
+    .user_data       = NULL,
+    .callback        = adc_cb
+
+};
+
+
+// Channel Configuration
+static struct adc_channel_cfg ch1_cfg = {
+    .gain             = ADC_GAIN_1,
+    .reference        = ADC_REF_INTERNAL,
+    .acquisition_time = ADC_ACQ_TIME_DEFAULT,
+    .channel_id       = 1,
+    .differential     = 0,
+};
+
+
+static struct adc_sequence seq = {
+    .channels    = BIT(1), // Channel bitmap
+    .buffer      = &sample,
+    .buffer_size = sizeof(sample),
+    .resolution  = 12,  
+    .options     = &seq_opts
+};
+
+
+static enum adc_action adc_cb(const struct device *dev,
+                              const struct adc_sequence *sequence,
+                              uint16_t sampling_index)
+{
+    ARG_UNUSED(dev);
+    ARG_UNUSED(sequence);
+    ARG_UNUSED(sampling_index);
+
+    // This callback runs in interrupt context
+    return ADC_ACTION_FINISH;
+}
+
+
+static void adc_sample_work_handler(struct k_work *work) 
+{
+    ARG_UNUSED(work);
+
+    int rc = adc_read(adc_dev, &seq);
+
+    if (rc == 0) {
+        printk("Sensor = %u\r\n", (unsigned int)sample);
+    } else {
+        printk("ADC read failed: %d\r\n", rc);
+    }
+
+    // Schedule the next conversion without flooding the CPU/UART
+    (void)k_work_reschedule(&adc_sample_work, ADC_SAMPLE_PERIOD);
+}
+
+
+int main(void)
+{
+    if(!device_is_ready(adc_dev)) {
+        return 0;
+    }
+
+    // Configure the channel
+    if(adc_channel_setup(adc_dev, &ch1_cfg) != 0) {
+        return 0;
+    }
+
+    printk("\r\n[ADC IRQ] PA1(ADC1_IN1)\r\n");
+
+    (void)k_work_schedule(&adc_sample_work, K_NO_WAIT);
+
+	while (1) {
+		k_sleep(K_FOREVER);
+	}
+
+	return 0;
+}