stm32f103c8t6基于标准库使用AHT10串口输出代码

#include "stm32f10x.h"
#include "stdio.h"

#define USART1_DR_Base 0x40013804

void USART1_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;
    
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);
    
    // USART1_TX -> PA9 , USART1_RX -PA10
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    
    USART_InitStructure.USART_BaudRate = 9600;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(USART1, &USART_InitStructure);
    
    USART_Cmd(USART1, ENABLE);
}

void USART1_SendChar(char ch)
{
    while (!(USART1->SR & USART_FLAG_TXE));
    USART1->DR = (ch & 0xFF);
}

int fputc(int ch, FILE *f)
{
    USART1_SendChar(ch);
    return ch;
}

void AHT10_Init(void)
{
    // 初始化AHT10传感器
    // ...
}

float AHT10_ReadTemperature(void)
{
    // 读取AHT10温度数据
    // ...
}

float AHT10_ReadHumidity(void)
{
    // 读取AHT10湿度数据
    // ...
}

int main(void)
{
    USART1_Init();
    AHT10_Init();
    
    while (1)
    {
        float temperature = AHT10_ReadTemperature();
        float humidity = AHT10_ReadHumidity();
        
        printf("Temperature: %.2f C\r\n", temperature);
        printf("Humidity: %.2f %%\r\n", humidity);
        
        delay_ms(1000);
    }
}