///////////////////////////////////////////////
//数据统一转成 拥有4位有效数字【科学计数法】 然后，4位有效数字以【int16】格式发送 如【1.234】按照【1234】发送
//科学计数位数以【int8】格式发送 如【10^12】以【12】发送
void PC_WriteNumNew(double data)
{
union i16tou8
{
int16 value;
uint8 datas[2];
}coef;
int8 cnt=floor(log10(fabs(data)));
coef.value=(int16)(data/pow(10,cnt-3));
UART0_SendByte(coef.datas[0]);
UART0_SendByte(coef.datas[1]);
UART0_SendByte((uint8)(cnt-3));
}
/**********************************************************************
* @name UART0_SendString *
* @param None *
* @return int *
* @description Write character to Serial Port *
***********************************************************************/
void UART0_SendString (unsigned char *s)
{
while (*s != 0)
{
UART0_SendByte(*s++);
}
}
//This function sends a string of characters on the serial port
void UART0_SendStr(const unsigned char *str)
{
while(1)
{
if( *str == '\0' ) break;
UART0_SendByte(*str++);
}
}
/*---------------------------------------------------------------------------*
* Routine: UART0_SendDataBlock
*---------------------------------------------------------------------------*
* Description:
* Send a group of data to the SCI2 transmit buffer. Block until
* all data is sent.
* Inputs:
* uint8_t *aData -- Pointer to bytes to send out
* uint32_t aLen -- Number of bytes to send
* Outputs:
* void
*---------------------------------------------------------------------------*/
void UART0_SendDataBlock(const uint8_t *aData, uint32_t aLen)
{
/* Send each byte one at a time unless out of space */
uint32_t i;
for (i = 0; i < aLen; ++i) {
while (!UART0_SendByte(aData[i]));
}
}
/*******************************************************************************************
* 函数名：UART0_SendString()
* 参数 ：uint8_t *s 指向字符串的指针
* 返回值：void
* 描述 ：UART0发送字符串函数
*********************************************************************************************/
void UART0_SendString(uint8_t *s)
{
while(*s) //判断是否到字符串末尾
{
UART0_SendByte(*s); //发送指针当前所指的字节
s++; //地址加1
}
}
/*******************************************************************************************
* 函数名：UART0_Handler()
* 参数 ：void
* 返回值：void
* 描述 ：UART0中断服务函数
*********************************************************************************************/
void UART0_Handler(void)
{
uint8_t temp;
if((UART0->UART_SR& UART_SR_RXRDY)==1)
{ //接收数据中断
temp= UART0->UART_RHR&0xff; //接收一个字节
UART0_SendByte(temp); //将接收的数据发回
}
}
/**********************************************************************
* @name UART0_SendChar *
* @param None *
* @return int *
* @description Write character to Serial Port *
***********************************************************************/
void UART0_SendChar(uint16_t disp)
{
uint16_t dispbuf[4];
uint8_t i;
dispbuf[3] = disp%10 + '0';
dispbuf[2] = disp/10%10 + '0';
dispbuf[1] = disp/10/10%10 + '0';
dispbuf[0] = disp/10/10/10%10 + '0';
for(i=0;i<4;i++)
UART0_SendByte(dispbuf[i]);
}
/*---------------------------------------------------------------------------*
* Routine: AtModem_Write
*---------------------------------------------------------------------------*
* Description:
* ATCmdLib callback to write a string of characters to the module.
* Inputs:
* const uint8_t *txData -- string of bytes
* uint32_t dataLength -- Number of bytes to transfer
* Outputs:
* void
*---------------------------------------------------------------------------*/
void AtModem_Write(const void *txData, uint16_t dataLength)
{
const uint8_t *tx = (uint8_t *)txData;
while (dataLength--)
{
/* Keep trying to send this data until it goes */
while (!UART0_SendByte(*tx))
{
}
tx++;
}
}
/*---------------------------------------------------------------------------*
* Routine: UART0_SendData
*---------------------------------------------------------------------------*
* Description:
* Attempts to send a group of data to the SCI2 transmit buffer.
* Returns the number of bytes actually sent.
* Inputs:
* uint8_t *aData -- Pointer to bytes to send out
* uint32_t aLen -- Number of bytes to send
* Outputs:
* void
*---------------------------------------------------------------------------*/
uint32_t UART0_SendData(const uint8_t *aData, uint32_t aLen)
{
uint32_t i;
/* Send each byte one at a time unless out of space */
for (i = 0; i < aLen; ++i) {
if (!UART0_SendByte(aData[i]))
break;
}
/* Return the number of bytes that did get into the transmit FIFO */
return i;
}
int main(void)
{
char usFdiv;
SystemInit();
UART0_Init(); //初始化串口
Rest(); //复位
UART0_GetChar(17); //接收复位信息
UART0_SendByte(4,SendBuf_0); //发送提速命令
UART0_GetChar(4);
LPC_UART0->LCR = 0x83; /* 允许设置波特率 */
usFdiv = (11059200*2 / 16) / 230400; /* 设置波特率 */
LPC_UART0->DLM = usFdiv / 256;
LPC_UART0->DLL = usFdiv % 256;
LPC_UART0->LCR = 0x1F; /* 锁定波特率 */
LPC_UART0->FCR = 0x87; //清空接收发送寄存器
UART0_SendByte(5,SendBuf_1); //发送获取随机数命令
UART0_GetChar(11); //获取随机数
while(1);
}
//This function is UART0 Receive ISR. This functions is called whenever UART0 receives any data
void __irq IRQ_UART0(void)
{
Temp = U0RBR;
if(Temp == 0x38) //ASCII value of 8
{
Forward(); //forward
}
if(Temp == 0x32) //ASCII value of 2
{
Back(); //back
}
if(Temp == 0x34) //ASCII value of 4
{
Left(); //left
}
if(Temp == 0x36) //ASCII value of 6
{
Right(); //right
}
if(Temp == 0x35) //ASCII value of 5
{
Stop(); //stop
}
if(Temp == 0x37) //ASCII value of 7
{
BUZZER_ON();
}
if(Temp == 0x39) //ASCII value of 9
{
BUZZER_OFF();
}
VICVectAddr = 0x00;
UART0_SendByte(Temp); //Echo Back received character
}
/********************************************************************************************************************************
*函数名：fputc()
* 参数：int ch，FILE *f
* 返回值：int
* 功能：重新定义stdio.h中的fputc()函数，使printf()输出到USART1
*********************************************************************************************************************************/
int fputc(int ch,FILE *f)
{
UART0_SendByte((uint8_t)ch); //发送1个字节
return ch; //返回 ch
}
