Reduce initial example code to bare minimum

.clang-format

@@ -0,0 +1,8 @@
+BasedOnStyle: LLVM
+IndentWidth: 4                 # Use 4 spaces for indentation
+TabWidth: 4                    # Tab width is also 4 spaces
+UseTab: Never                  # Always use spaces instead of tabs
+ColumnLimit: 80                # Wrap lines after 80 characters
+AllowShortLoopsOnASingleLine: true
+AlwaysBreakTemplateDeclarations: true
+BreakConstructorInitializers: BeforeComma

.gitignore

@@ -6,3 +6,5 @@ ch32fun.h
 ch32fun.ld
 ch32v003hw.h
 ch32v003.ld
+.cache
+compile_commands.json

Makefile

@@ -52,14 +52,14 @@ ch32%:
 	@echo "Fetching $@"
 	@curl $(CURL_FLAGS) $(BASE)/$@
 
-$(TARGET).bin : $(TARGET).elf
-	@$(OBJCOPY) -O binary $< $(TARGET).bin
+%.bin : %.elf
+	$(OBJCOPY) -O binary $< $@
 
-$(TARGET).lst : $(TARGET).elf
-	@$(OBJDUMP) -S $^ > $(TARGET).lst
+%.lst : %.elf
+	$(OBJDUMP) -S $^ > $@
 
-$(TARGET).hex : $(TARGET).elf
-	@$(OBJCOPY) -O ihex $< $(TARGET).hex
+%.hex : %.elf
+	$(OBJCOPY) -O ihex $< $@
 
 flash: $(TARGET).bin
 	minichlink -w $(TARGET).bin flash -b

blink.c

@@ -1,35 +1,19 @@
 #include "ch32fun.h"
-#include <stdio.h>
 
-// use defines to make more meaningful names for our GPIO pins
-#define PIN_1 PD0
-#define PIN_K PD4
-#define PIN_BOB PD6
-#define PIN_KEVIN PC0
+#define LED_PIN PD6
 
-int main()
-{
-	SystemInit();
+int main() {
+    SystemInit();
 
-	// Enable GPIOs
-	funGpioInitAll();
+    // Enable GPIOs
+    funGpioInitAll();
 
-	funPinMode( PIN_1,     GPIO_Speed_10MHz | GPIO_CNF_OUT_PP );
-	funPinMode( PIN_K,     GPIO_Speed_10MHz | GPIO_CNF_OUT_PP );
-	funPinMode( PIN_BOB,   GPIO_Speed_10MHz | GPIO_CNF_OUT_PP );
-	funPinMode( PIN_KEVIN, GPIO_Speed_10MHz | GPIO_CNF_OUT_PP );
+    funPinMode(LED_PIN, GPIO_Speed_10MHz | GPIO_CNF_OUT_PP);
 
-	while(1)
-	{
-		funDigitalWrite( PIN_1,     FUN_HIGH );
-		funDigitalWrite( PIN_K,     FUN_HIGH );
-		funDigitalWrite( PIN_BOB,   FUN_HIGH );
-		funDigitalWrite( PIN_KEVIN, FUN_HIGH );
-		Delay_Ms( 250 );
-		funDigitalWrite( PIN_1,     FUN_LOW );
-		funDigitalWrite( PIN_K,     FUN_LOW );
-		funDigitalWrite( PIN_BOB,   FUN_LOW );
-		funDigitalWrite( PIN_KEVIN, FUN_LOW );
-		Delay_Ms( 250 );
-	}
+    while (1) {
+        funDigitalWrite(LED_PIN, FUN_HIGH);
+        Delay_Ms(250);
+        funDigitalWrite(LED_PIN, FUN_LOW);
+        Delay_Ms(250);
+    }
 }