void main(void)
#endif
#endif
{
VCom_Configuration();
/* CDC layer initialization */
USB_CDC_Init(Buffer, 1, SET);
Setup_CPU_Clock();
Setup_USB();
/* Main loop */
while (1)
{
}
}
void LPLD_USB_Init(void)
{
MPU->CESR=0; //MPU 配置
SIM->SOPT2 |= SIM_SOPT2_USBSRC_MASK | //选择PLL/FLL作为时钟源
SIM_SOPT2_PLLFLLSEL_MASK; //用PLL作为USB的时钟源，此时的PLL的频率为96Mhz
#if(CORE_CLK_MHZ == PLL_96)
SIM->CLKDIV2 = 0x02; //设置分频系数USB时钟 = 96Mhz/2 =48Mhz
#endif
SIM->SCGC4 |= (SIM_SCGC4_USBOTG_MASK); //使能USB外设时钟
USB0->USBTRC0 = 0x40; //按照文档所述，此位必须设置为1
SIM->SOPT1 |= SIM_SOPT1_USBREGEN_MASK; //配置USB设备稳压源
/* NVIC模块配置 */
enable_irq(USB0_IRQn); //使能NVIC中的USB OTG中断
USB_ISR[0] = USB_DEVICE_ISR; //将USB协议处理函数添加到中断处理函数数组中
#if(USB_DEVICE_CLASS == USB_DEVICE_CLASS_CDC)
USB_CDC_Init(); //初始化CDC类
#elif(USB_DEVICE_CLASS == USB_DEVICE_CLASS_HID)
USB_HID_Mouse_Init(); //初始化HID类
#endif
}
/*******************************************************************************
* Function Name : VCOMFunc
* Description : Demonstration of USB-to-UART VCOM bridge.
* : Displays prompt on LCD, enables the bridge and waits for
* : joystick SEL key pressed to stop bridging and return
* : to main menu.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void VCOMFunc(void) {
uint32_t key;
/* Display prompt */
VCOMHelp();
/* Save current CPU CLOCK configuration */
temp_CPU_CLOCK = MDR_RST_CLK->CPU_CLOCK;
temp_PLL_CONTROL = MDR_RST_CLK->PLL_CONTROL;
Setup_CPU_Clock();
UARTConfiguration();
/* CDC layer initialization */
USB_CDC_Init(SendBuffer, 1, SET);
/* UART configuration */
UARTInitStructure.UART_BaudRate = 14400;
UARTInitStructure.UART_WordLength = UART_WordLength8b;
UARTInitStructure.UART_StopBits = UART_StopBits1;
UARTInitStructure.UART_Parity = UART_Parity_No;
UARTInitStructure.UART_FIFOMode = UART_FIFO_OFF;
UARTInitStructure.UART_HardwareFlowControl = UART_HardwareFlowControl_RXE | \
UART_HardwareFlowControl_TXE;
/* With LBE bit set, output line of UARTTXD transmitter becomes to be bound to
* UARTRXD receiver input. In order to run this example with UART physically
* connected to PC, just comment this line */
/* UARTInitStructure.UART_HardwareFlowControl |= UART_HardwareFlowControl_LBE; */
UART_Init (UART,&UARTInitStructure);
#ifdef USB_CDC_LINE_CODING_SUPPORTED
/* Set line coding initial settings accordingly to UART ones above */
LineCoding.dwDTERate = UARTInitStructure.UART_BaudRate;
LineCoding.bCharFormat = USB_CDC_STOP_BITS1;
LineCoding.bParityType = USB_CDC_PARITY_NONE;
LineCoding.bDataBits = USB_CDC_DATA_BITS8;
#endif /* USB_CDC_LINE_CODING_SUPPORTED */
/* Set interrupt handlers */
pfUARTReceiverFunc = ReceiverFunc;
pfUARTSenderFunc = SenderFunc;
#ifdef USB_CDC_STATE_REPORTING_SUPPORTED
pfUARTLineStateFunc = LineStateFunc;
#endif /* USB_CDC_STATE_REPORTING_SUPPORTED */
/* Enable sender, receiver and line state interrupts */
UART_ITConfig (UART, UART_IT_TX | UART_IT_RX
#ifdef USB_CDC_STATE_REPORTING_SUPPORTED
| UART_LINE_STATE_EVENTS
#endif /* USB_CDC_STATE_REPORTING_SUPPORTED */
, ENABLE);
/* Enable bridge */
UART_Cmd(UART, ENABLE);
Setup_USB();
/* Wait for SEL to quit */
key = GetKey();
for (; key != SEL; key = GetKey())
{
}
WAIT_UNTIL_KEY_RELEASED(SEL);
/* Disable bridge */
UART_Cmd(UART, DISABLE);
#if defined (USE_MDR32F9Q2_Rev0) || defined (USE_MDR32F9Q2_Rev1)
PORTBRestoreConfig();
#endif /* defined (USE_MDR32F9Q2_Rev0) || defined (USE_MDR32F9Q2_Rev1) */
USB_CDC_ReceiveStop();
USB_DevicePowerOff();
/* Restore original CPU CLOCK configuration */
MDR_RST_CLK->CPU_CLOCK = temp_CPU_CLOCK;
MDR_RST_CLK->PLL_CONTROL = temp_PLL_CONTROL;
DisplayMenu();
}
