四:软件控制
我是用STM32实现的,用了一个串口,然后通过程序实现语音播放
- void uart3_init(u32 bound){
- //GPIO端口设置
- GPIO_InitTypeDef GPIO_InitStructure;
- USART_InitTypeDef USART_InitStructure;
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //使能USART3,GPIOB时钟
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,ENABLE);
-
- //USART3_TX GPIOB.10
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_Init(GPIOB, &GPIO_InitStructure);
-
- //USART3_RX GPIOB.11初始化
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空输入
- GPIO_Init(GPIOB, &GPIO_InitStructure);
- //USART 初始化设置
- USART_InitStructure.USART_BaudRate = bound;//串口波特率
- USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长为8位数据格式
- USART_InitStructure.USART_StopBits = USART_StopBits_1;//一个停止位
- USART_InitStructure.USART_Parity = USART_Parity_No;//无奇偶校验位
- USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无硬件数据流控制
- USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式
- USART_Init(USART3, &USART_InitStructure);
- // USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);//开启串口接受中断
- USART_Cmd(USART3, ENABLE);
- }
- //音乐播放 7e 04 03 00 02 ef
- void Play(u16 cmd)
- {
- USART_SendData(USART3,0x7E);
- delay_ms(1);
- USART_SendData(USART3,0x04);
- delay_ms(1);
- USART_SendData(USART3,0x03);
- delay_ms(1);
- USART_SendData(USART3,0x00);
- delay_ms(1);
- USART_SendData(USART3,cmd);
- delay_ms(1);
- USART_SendData(USART3,0xEF);
- delay_ms(1);
- }
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