写出每个文件的具体代码
时间: 2024-01-20 09:04:41 浏览: 26
好的,我可以给您提供一些基本的代码样例,但是具体的代码实现会根据您使用的STM32型号和DFPlayer Mini型号而有所不同。以下是一个基本的代码示例,用于控制DFPlayer Mini并将音频输出到扬声器:
1. main.c:
```
#include "stm32f4xx.h"
#include "uart.h"
#include "dfplayer.h"
#include "audio.h"
int main(void)
{
// 初始化STM32外设
USART_Configuration();
DFPlayer_Init();
Audio_Init();
// 播放音频文件
DFPlayer_Play(1);
while (1)
{
// 循环读取串口数据
if (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == SET)
{
uint8_t data = USART_ReceiveData(USART1);
// 处理接收到的数据
}
}
}
```
2. uart.c:
```
#include "uart.h"
void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
// 初始化GPIO引脚
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 配置USART1
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
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 USART_SendData(uint8_t data)
{
while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
USART_SendData(USART1, data);
}
uint8_t USART_ReceiveData(void)
{
while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);
return USART_ReceiveData(USART1);
}
```
3. dfplayer.c:
```
#include "dfplayer.h"
#include "uart.h"
void DFPlayer_Init(void)
{
// 发送初始化命令
uint8_t cmd[10] = {0x7E, 0xFF, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF};
for (int i = 0; i < 9; i++)
{
USART_SendData(cmd[i]);
}
}
void DFPlayer_Play(uint16_t track)
{
// 发送播放命令
uint8_t cmd[10] = {0x7E, 0xFF, 0x06, 0x00, 0x03, 0x00, 0x00, 0x00, 0xEF};
cmd[5] = (track >> 8) & 0xFF;
cmd[6] = track & 0xFF;
for (int i = 0; i < 9; i++)
{
USART_SendData(cmd[i]);
}
}
```
4. audio.c:
```
#include "audio.h"
void Audio_Init(void)
{
// 初始化GPIO引脚
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 初始化DAC
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
DAC_InitTypeDef DAC_InitStructure;
DAC_InitStructure.DAC_Trigger = DAC_Trigger_None;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
DAC_Cmd(DAC_Channel_1, ENABLE);
}
void Audio_Output(uint16_t data)
{
// 将数据输出到DAC
DAC_SetChannel1Data(DAC_Align_12b_R, data);
DAC_SoftwareTriggerCmd(DAC_Channel_1, ENABLE);
}
```
这些是基本的代码样例,供您参考。但是要注意,这些代码可能并不能直接在您的项目中使用,需要根据具体情况进行修改和调整。
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