void main(void)
{
u16 id;
InitUart();
InitKeyBoard();
//***********************************
// Prints("adfasdfadsfasf");
// LightUpLed(LED1);
// TurnOffLed(LED2);
Prints("\nGetting chip ID...");
D12ReadID(&id);
PrintShortIntHex(id);
Prints(",over\n");
USBConnect();
//************************************
while(1);
}
void UsbEp0Out(void)
{
#ifdef DEBUG
Prints("USB ep0 out interrupt.\r\n");
#endif
if(D12ReadEndPointLastStatus(0)&0x20)
{
D12ReadEndPointBuffer(0,16,Buffer);
D12AckSetup();
D12ClearBuffer();
bmRequestType=Buffer[0];
bRequest=Buffer[1];
wValue=Buffer[2]+(((u16)Buffer[3])<<8);
wIndex=Buffer[4]+(((u16)Buffer[5])<<8);
wLength=Buffer[6]+(((u16)Buffer[7])<<8);
if((bmRequestType&0x80)==0x80)
{
switch((bmRequestType>>5)&0x03)
{
case 0:
#ifdef DEBUG
Prints("USB Standard in request.\r\n");
#endif
switch(bRequest)
{
case GET_CONFIGURATION:
#ifdef DEBUG
Prints("Get configuration.\r\n");
#endif
break;
case GET_DESCRIPTOR:
#ifdef DEBUG
Prints("Get descriptor.\r\n");
#endif
switch((wValue>>8)&0xff)
{
case DEVICE_DESCRIPTOR:
#ifdef DEBUG
Prints("-Get device descriptor.\r\n");
#endif
pSendData=DeviceDescriptor;
if(wLength>DeviceDescriptor[0])
{
#ifdef DEBUG
Prints("Host want length of device descriptor is:");
PrintShortIntHex(DeviceDescriptor[0]);
Prints("\r\n");
#endif
SendLength=DeviceDescriptor[0];
if(SendLength%DeviceDescriptor[7]==0)
{
NeedZeroPacket=1;
}
}
else
{
SendLength=wLength;
}
UsbEp0SendData();
break;
case CONFIGURATION_DESCRIPTOR:
#ifdef DEBUG
Prints("-Get configuration descriptor.\r\n");
#endif
pSendData=ConfigurationDescriptor;
SendLength=ConfigurationDescriptor[3];
SendLength=SendLength*256+ConfigurationDescriptor[2];
if(wLength>SendLength)
{
if(SendLength%DeviceDescriptor[7]==0)
{
NeedZeroPacket=1;
}
}
else
{
SendLength=wLength;
}
UsbEp0SendData();
break;
case STRING_DESCRIPTOR:
#ifdef DEBUG
Prints("-Get string descriptor.\r\n");
#endif
switch(wValue&0xff)
{
case 0:
#ifdef DEBUG
Prints("--Get Language ID.\r\n");
#endif
pSendData=LanguageId;
SendLength=LanguageId[0];
break;
case 1:
#ifdef DEBUG
Prints("--Get Manufacturer string.\r\n");
#endif
pSendData=ManufacturerStringDescriptor;
SendLength=ManufacturerStringDescriptor[0];
break;
case 2:
#ifdef DEBUG
Prints("--Get product string.\r\n");
#endif
pSendData=ProductStringDescriptor;
SendLength=ProductStringDescriptor[0];
break;
case 3:
#ifdef DEBUG
Prints("--Get serial string.\r\n");
#endif
pSendData=SerialNumberStringDescriptor;
SendLength=SerialNumberStringDescriptor[0];
break;
default:
#ifdef DEBUG
Prints("Undefined index.\r\n");
#endif
SendLength=0;
NeedZeroPacket=1;
break;
}
if(wLength>SendLength)
{
if(SendLength%DeviceDescriptor[7]==0)
NeedZeroPacket=1;
}
else
{
SendLength=wLength;
}
UsbEp0SendData();
break;
case REPORT_DESCRIPTOR:
#ifdef DEBUG
Prints("Get report descriptor.\r\n");
#endif
if(wLength>SendLength)
{
pSendData=ReportDescriptor;
SendLength=sizeof(ReportDescriptor);
if(wLength%DeviceDescriptor[7]==0)
{
NeedZeroPacket=1;
}
else
{
SendLength=wLength;
}
UsbEp0SendData();
}
break;
default:
#ifdef DEBUG
Prints("-Get other descriptor(unrecognized).\r\n");
#endif
break;
}
break;
case GET_INTERFACE:
#ifdef DEBUG
Prints("Get Interface.\r\n");
#endif
break;
case GET_STATUS:
#ifdef DEBUG
Prints("Get status.\r\n");
#endif
break;
case SYNCH_FRAME:
#ifdef DEBUG
Prints("Synch frame.\r\n");
#endif
break;
default:
#ifdef DEBUG
Prints("Error,undefined standard device request.\r\n");
#endif
break;
}
break;
case 1: //Class request.
#ifdef DEBUG
Prints("Class request.\r\n");
#endif
break;
case 2: //³§ÉÌÇëÇó
#ifdef DEBUG
Prints("Vendor request.\r\n");
#endif
break;
default:
#ifdef DEBUG
Prints("Error,undefined request.\r\n");
#endif
break;
}
}
else
{
switch((bmRequestType>>5)&0x03)
/********************************************************************
函数功能：主函数。
入口参数：无。
返 回：无。
备 注：无。
********************************************************************/
void main(void) //主函数
{
uint8 i;
uint16 id;
uint8 InterruptSource;
EA=1; //打开中断
InitKeyboard(); //初始化按键
InitUART(); //初始化串口
for(i=0;i<18;i++) //显示信息
{
Prints(HeadTable[i]);
}
id=D12ReadID();
Prints("Your D12 chip\'s ID is: ");
PrintShortIntHex(id);
if(id==0x1012)
{
Prints(". ID is correct! Congratulations!\r\n\r\n");
}
else
{
Prints(". ID is incorrect! What a pity!\r\n\r\n");
}
UsbDisconnect(); //先断开USB连接
UsbConnect(); //将USB连接上
ConfigValue=0; //配置值初始化为0
while(1) //死循环
{
if(D12GetIntPin()==0) //如果有中断发生
{
D12WriteCommand(READ_INTERRUPT_REGISTER); //写读中断寄存器的命令
InterruptSource=D12ReadByte(); //读回第一字节的中断寄存器
if(InterruptSource&0x80)UsbBusSuspend(); //总线挂起中断处理
if(InterruptSource&0x40)UsbBusReset(); //总线复位中断处理
if(InterruptSource&0x01)UsbEp0Out(); //端点0输出中断处理
if(InterruptSource&0x02)UsbEp0In(); //端点0输入中断处理
if(InterruptSource&0x04)UsbEp1Out(); //端点1输出中断处理
if(InterruptSource&0x08)UsbEp1In(); //端点1输入中断处理
if(InterruptSource&0x10)UsbEp2Out(); //端点2输出中断处理
if(InterruptSource&0x20)UsbEp2In(); //端点2输入中断处理
}
if(ConfigValue!=0) //如果已经设置为非0的配置，则可以返回报告数据
{
LEDs=~KeyPress; //利用板上8个LED显示按键状态，按下时亮
if(!Ep1InIsBusy) //如果端点1输入没有处于忙状态，则可以发送数据
{
KeyCanChange=0; //禁止按键扫描
if(KeyUp||KeyDown||KeyPress) //如果有按键事件发生
{
SendReport(); //则返回报告
}
KeyCanChange=1; //允许按键扫描
}
}
}
}
