MDK5编译报错

Rebuild target 'Target 1'
compiling main.c...
main.c(92): warning: #223-D: function "timer_init" declared implicitly
timer_init(99,3599);//中断设定计数值，预分频值 20ms
main.c(73): warning: #177-D: variable "fontcnt" was declared but never referenced
u32 fontcnt;
main.c(74): warning: #177-D: variable "i" was declared but never referenced
u8 i,j;
main.c(74): warning: #177-D: variable "j" was declared but never referenced
u8 i,j;

#ifndef __TIMER_H
#define __TIMER_H
#include "stm32f10x.h"
#include "stm32f10x_tim.h"

void timer_init(uint16_t arr,uint16_t psc);//t=£¨£¨arr+1£©*£¨psc+1£©/tclk£© tclk=72mhz
//arr=4999,psc=7200£¬ÖÜÆÚΪ500ms
//void TIM3_IRQHandler(void); //TIM3ÖжÏ

#endif

都已经申明了还是报错 搞了一晚上没有搞明白

使用C:\Keil\ARM\Startup\ST\STM32F10x.s这个启动代码

可以同时安装mdk5和mdk4的，不过只是共存桌面图标，内容已mdk5