examples/timer: Add blinky example.

Signed-off-by: zhanglinjing <[email protected]>

Author: LinjingZhang

examples/timer/blinky.ino

@@ -0,0 +1,44 @@
+#include "Arduino.h"
+#include "xmc_gpio.h"
+// the setup function runs once when you press reset or power the board
+void setup() {
+    setupGPIO();
+}
+
+// the loop function runs over and over again forever
+void loop() {
+  // Toggle the LED using delay
+  digitalWrite(LED_BUILTIN, LOW);
+  delay(1000); // Delay for 1000 milliseconds (1 second)
+  digitalWrite(LED_BUILTIN, HIGH);
+  delay(1000); // Delay for 1000 milliseconds (1 second)
+
+  // Toggle the LED using delayMicroseconds
+  digitalWrite(LED_BUILTIN, LOW);
+  delayMicroseconds(500000); // Delay for 500000 microseconds (0.5 seconds)
+  digitalWrite(LED_BUILTIN, HIGH);
+  delayMicroseconds(500000); // Delay for 500000 microseconds (0.5 seconds)
+}
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void setupGPIO() {
+    XMC_GPIO_CONFIG_t gpio_config;
+
+    gpio_config.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL;
+    gpio_config.output_level = XMC_GPIO_OUTPUT_LEVEL_LOW;
+    gpio_config.output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM;
+    XMC_GPIO_Init(mapping_port_pin[LED_BUILTIN].port, mapping_port_pin[LED_BUILTIN].pin, &gpio_config);
+}
+
+void digitalWrite(pin_size_t pin, PinStatus value) {
+    XMC_GPIO_SetOutputLevel(mapping_port_pin[pin].port, mapping_port_pin[pin].pin,
+                            (value == LOW) ? XMC_GPIO_OUTPUT_LEVEL_LOW
+                                           : XMC_GPIO_OUTPUT_LEVEL_HIGH);
+}
+
+#ifdef __cplusplus
+}
+#endif