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- 2016-5-1
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- 4 小时
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发表于 2016-5-18 15:49:08
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[mw_shl_code=c,true]void TTSPlay_1(void)
{
u8 SoundBuf[12]={0xFD, 0x00, 0x07, 0x01, 0x01, 0xC4, 0xE3, 0xBA, 0xC3, 0x0D, 0x0A, 0xAD };
u8 i,xorcrc=0;
for (i=0;i<12;i++)
{
xorcrc= xorcrc ^ (SoundBuf);
USART_Send_Byte(SoundBuf);
}
USART_Send_Byte(xorcrc);
}
/***************************
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***************************/
void USART_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO, ENABLE);
// RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; //TX
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3; //RX
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(USART2, &USART_InitStructure);
USART_Cmd(USART2, ENABLE);
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);//¿aÆô′®¿ú½óêüÖD¶Ï
USART_ClearFlag(USART2, USART_FLAG_TC);
}
/***************************************************************************
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***************************************************************************/
void USART_Send_Byte(u8 mydata)
{
USART_ClearFlag(USART2,USART_FLAG_TC);
USART_SendData(USART2,mydata);
LCD_ShowxNum_color(80,40,mydata,16,16,0,BLACK);
while(USART_GetFlagStatus(USART2,USART_FLAG_TC)==RESET);
USART_ClearFlag(USART2,USART_FLAG_TC);
}
[/mw_shl_code] |
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|手机版|OpenEdv-开源电子网
( 粤ICP备12000418号-1 )
CLK1时钟频率(最大36Mhz)
//bound:波特率
//CHECK OK
//091209
void uart2_init(u32 pclk1,u32 bound)
{
float temp;
uint16_t mantissa;
uint16_t fraction;
temp=(float)(pclk1*1000000)/(bound*16); //得到USARTDIV
mantissa=temp; //得到整数部分
fraction=(temp-mantissa)*16; //得到小数部分
mantissa<<=4;
mantissa+=fraction;
RCC->APB2ENR|=1<<2; //使能PORTA口时钟
RCC->APB1ENR|=1<<17; //使能串口时钟
GPIOA->CRL&=0Xffff00ff; //IO状态设置
GPIOA->CRL|=0X00004800; //IO状态设置
RCC->APB1RSTR|=1<<17; //复位串口2
RCC->APB1RSTR&=~(1<<17); //停止复位
//波特率设置
USART2->BRR=mantissa; // 波特率设置
USART2->CR1|=0X200C; //1位停止,无校验位.
}
void SEND_SYN(void)
{
uint8_t i,j;
uint8_t ecc=0;
uint8_t head[5];
uint8_t length;
length=strlen(text);
head[0]=0xFD;
head[0]=0x00;
head[0]=length+3;
head[0]=0x01;
head[0]=0x00;
for(i=0; i<5; i++)
{
ecc^= head;
STM_SendChar(head);
}
for(j=0; j<length; j++)
{
ecc^=text[j];
STM_SendChar(text[j]);
}
STM_SendChar(ecc);
}
void STM_SendChar(uint8_t ch)
{
USART_SendData(USART2, ch);
while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET) //查询等待标志复位
{
USART_ClearFlag(USART2,USART_FLAG_TC); //清除发送完成标志
}
} 自己的驱动怎么都不响[/mw_shl_code]
发表于 2014-8-8 23:08:02
