i broke it

include/systick.h

@@ -3,12 +3,14 @@
 
 #include <stdint.h>
 
-#define SYSTICK_ONE_MILLISECOND ((uint32_t)FUNCONF_SYSTEM_CORE_CLOCK / 1000)
+#define TIMER_DELAY 1000
+#define SYSTICK_ONE_MILLISECOND \
+  (uint32_t)(FUNCONF_SYSTEM_CORE_CLOCK / TIMER_DELAY)
 #define millis() (systick_millis)
 
-void systick_init(void);
+void init_systick(void);
 
 // ms counter incremented by SysTick
-extern volatile uint32_t systick_millis;
+// extern volatile uint32_t systick_millis;
 
 #endif  // SYSTICK_H

include/timer.h

@@ -0,0 +1,9 @@
+#ifndef TIMER_H
+#define TIMER_H
+
+#include "ch32v003fun.h"
+
+// Function prototypes
+void tim2_init(void);
+
+#endif  // TIMER_H

include/w5500.h

@@ -24,6 +24,8 @@ void handle_ip_assigned(void);
 // Initializes the W5500 chip
 void configure_network(void);
 
+void configure_dhcp(void);
+
 // resolves a domain name
 void resolve_domain_name(const char* domain_name);