Rename blink.c to main.c

main.c

@@ -0,0 +1,39 @@
+#include <ch32fun.h>
+#include <rsa.h>
+
+#define LED_PIN PD6
+#define FREQ 2
+#define BLINK_DELAY 1000 / FREQ
+
+void exit_blink() {
+    for (int i = 0; i < 4; i++) {
+        funDigitalWrite(LED_PIN, FUN_HIGH);
+        Delay_Ms(50);
+        funDigitalWrite(LED_PIN, FUN_LOW);
+        Delay_Ms(50);
+    }
+
+    while (1){};
+
+    funDigitalWrite(LED_PIN, FUN_HIGH);
+}
+
+int main() {
+    SystemInit();
+
+    // Enable GPIOs
+    funGpioInitAll();
+
+    funPinMode(LED_PIN, GPIO_Speed_10MHz | GPIO_CNF_OUT_PP);
+
+    int i = 0;
+    while (i < gcd(930, 10)) {
+        i++;
+        funDigitalWrite(LED_PIN, FUN_HIGH);
+        Delay_Ms(BLINK_DELAY);
+        funDigitalWrite(LED_PIN, FUN_LOW);
+        Delay_Ms(BLINK_DELAY);
+    }
+
+    exit_blink();
+}