void initializeUsb(UsbDevice* usbDevice) {
initializeUsbCommon(usbDevice);
usbDevice->device = USBDevice(usbCallback);
usbDevice->device.InitializeSystem(false);
setGpioDirection(0, USB_VBUS_ANALOG_INPUT, GPIO_DIRECTION_INPUT);
debug("Done.");
}
int usermain(void)
{
setGpioDirection(GPIO0_7,GPIO_OUT); //led
// Initialize uart0 and set debugger interface
initUART0();
setDebugInterface(sendByteToUART0);
debugPrintf("lpc13xx is running !\r\n");
// Power down usb clock
SETBIT(LPC_SYSCON->PDRUNCFG,10);
SETBIT(LPC_SYSCON->PDRUNCFG,8);
newThread(led,512,10,5);
// newThread(PRS_I2CComm,512,10,4);
return 0;
}
UInt8 initSensorPRS(SensorType mtype, GPIO_PIN pin)
{
//UInt8 * i2caddrbuffer;
UInt8 i2caddrbuffer[3];
UInt8 replybuffer[3];
//UInt8 * checkbuffer;
UInt8 checkbuffer[8];
UInt8 repcheckbuffer[8];
UInt32 i = 0;
UInt32 i2cdatalength;
UInt8 i2caddr = DEFAULT_ADDR;
replybuffer[0] = I2C_ACK_HEADER;
replybuffer[1] = mtype;
replybuffer[2] = mtype;
setGpioDirection(pin,GPIO_IN);
TRACE_PRS(("InitSensorPRS: waiting for high pin state\r\n"));
while(getGpioValue(pin)==0);
TRACE_PRS(("InitSensorPRS: waiting for low pin state\r\n"));
while(getGpioValue(pin)==1);
TRACE_PRS(("InitSensorPRS: Init i2c slave to %x\r\n", DEFAULT_ADDR));
initSlaveI2C0(DEFAULT_ADDR, I2C_400_KHZ);
TRACE_PRS(("InitSensorPRS: waiting for addr packet\r\n"));
i2cdatalength=getBufferFromMasterI2C0(i2caddrbuffer, 3);
TRACE_PRS(("InitSensorPRS: i2cdatalength = %x\r\n", i2cdatalength));
if(i2cdatalength == 3)
{
//DebugPrintf("i2caddrbuffer[1] = %x\r\n", i2caddrbuffer[1]);
if(i2caddrbuffer[0] == PK_HEADER)
{
//DebugPrintf("[0] = PK_HEADER\r\n");
if(i2caddrbuffer[1] == i2caddrbuffer[2] )
{
//DebugPrintf("[1] = [2]\r\n");
i2caddr = i2caddrbuffer[1];
TRACE_PRS(("new addr = 0x%x\r\n", i2caddr));
initSlaveI2C0(i2caddr, I2C_400_KHZ);
//DebugPrintf("sending ack packet\r\n");
setBufferToMasterI2C0(replybuffer, 3);
i2cdatalength = getBufferFromMasterI2C0(checkbuffer, 8);
if(i2cdatalength == 8)
{
//DebugPrintf("return 8 test bytes to master\r\n");
for(i=0;i<8;i++)
{
repcheckbuffer[i] = checkbuffer[i];
}
setBufferToMasterI2C0(repcheckbuffer, 8);
TRACE_PRS(("[END] - new addr is 0x%x\r\n", i2caddr));
return i2caddr;
}//if(i2cdatalength == 8)
}//if(i2caddrbuffer[1] == i2caddrbuffer[2] )
}//if(i2caddrbuffer[0] == PK_HEADER)
}//if(i2cdatalength == 3)
TRACE_PRS(("InitSensorPRS failed !\r\n"));
//if error, halt i2c
haltSlaveI2C0();
return 0;
}
