出问题了,求帮我。我现在在自学32,想用AI理解一下,但是编译报错了。

#include "stm32f10x.h"****
#include "OLED.h"
#include <stdio.h>
#include "delay.h"
volatile uint32_t timer_seconds = 0; // 计时器秒数
volatile uint8_t timer_running = 0; // 计时器运行状态(0:停止,1:运行)
char timer_str[16]; // 用于存储格式化后的时间字符串
void TIM2_Init(void) {
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
// 使能TIM2时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
// 配置TIM2
TIM_TimeBaseStructure.TIM_Period = 9999; // 自动重装载值
TIM_TimeBaseStructure.TIM_Prescaler = 8399; // 84MHz / 8400 = 10kHz
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
// 使能TIM2更新中断
TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
// 启动TIM2
TIM_Cmd(TIM2, ENABLE);
}
void TIM2_IRQHandler(void) {
if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) {
TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
if (timer_running) {
timer_seconds++; // 每秒增加计时器值
}
}
}
void Button_Init(void) {
GPIO_InitTypeDef GPIO_InitStructure;
// 使能GPIOA时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
// 配置PA0为上拉输入
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
uint8_t Button_Read(void) {
static uint8_t button_state = 1; // 按键状态(1:未按下,0:按下)
uint8_t current_state = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_0);
if (current_state == 0 && button_state == 1) { // 检测到下降沿
button_state = 0;
return 1; // 返回按键按下事件
} else if (current_state == 1 && button_state == 0) { // 检测到上升沿
button_state = 1;
}
return 0; // 无按键事件
}
int I2C_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
I2C_InitTypeDef I2C_InitStructure;
// 使能GPIOB和I2C1时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENAB
-