/** Event handler for the library USB Configuration Changed event. */
void EVENT_USB_Device_ConfigurationChanged(void)
{
bool ConfigSuccess = true;
/* Configure the device endpoints according to the selected mode */
if (CurrentFirmwareMode == MODE_USART_BRIDGE)
{
ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
/* Configure the UART flush timer - run at Fcpu/1024 for maximum interval before overflow */
TCCR0B = ((1 << CS02) | (1 << CS00));
/* Initialize ring buffers used to hold serial data between USB and software UART interfaces */
RingBuffer_InitBuffer(&USBtoUART_Buffer, USBtoUART_Buffer_Data, sizeof(USBtoUART_Buffer_Data));
RingBuffer_InitBuffer(&UARTtoUSB_Buffer, UARTtoUSB_Buffer_Data, sizeof(UARTtoUSB_Buffer_Data));
/* Start the software USART */
SoftUART_Init();
}
else
{
ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_OUT_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
if ((AVRISP_DATA_IN_EPADDR & ENDPOINT_EPNUM_MASK) != (AVRISP_DATA_OUT_EPADDR & ENDPOINT_EPNUM_MASK))
ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
/* Configure the V2 protocol packet handler */
V2Protocol_Init();
}
LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
}
/** Configures the board hardware and chip peripherals for the demo's functionality. */
void SetupHardware(void)
{
/* Disable watchdog if enabled by bootloader/fuses */
MCUSR &= ~(1 << WDRF);
wdt_disable();
/* Disable clock division */
clock_prescale_set(clock_div_1);
/* Hardware Initialization */
SoftUART_Init();
LEDs_Init();
USB_Init();
/* Disable JTAG debugging */
MCUCR |= (1 << JTD);
MCUCR |= (1 << JTD);
/* Enable pull-up on the JTAG TDI pin so we can use it to select the mode */
PORTF |= (1 << 7);
_delay_ms(10);
/* Select the firmware mode based on the JTD pin's value */
CurrentFirmwareMode = (PINF & (1 << 7)) ? MODE_USART_BRIDGE : MODE_PDI_PROGRAMMER;
/* Re-enable JTAG debugging */
MCUCR &= ~(1 << JTD);
MCUCR &= ~(1 << JTD);
}
/** Configures the board hardware and chip peripherals for the demo's functionality. */
void SetupHardware(void)
{
#if (ARCH == ARCH_AVR8)
/* Disable watchdog if enabled by bootloader/fuses */
MCUSR &= ~(1 << WDRF);
wdt_disable();
/* Disable clock division */
clock_prescale_set(clock_div_1);
#endif
/* Disable JTAG debugging */
MCUCR |= (1 << JTD);
MCUCR |= (1 << JTD);
/* Enable pull-up on the JTAG TDI pin so we can use it to select the mode */
PORTF |= (1 << 7);
Delay_MS(10);
/* Select the firmware mode based on the JTD pin's value */
CurrentFirmwareMode = (PINF & (1 << 7)) ? MODE_USART_BRIDGE : MODE_PDI_PROGRAMMER;
/* Re-enable JTAG debugging */
MCUCR &= ~(1 << JTD);
MCUCR &= ~(1 << JTD);
/* Hardware Initialization */
SoftUART_Init();
LEDs_Init();
#if defined(RESET_TOGGLES_LIBUSB_COMPAT)
UpdateCurrentCompatibilityMode();
#endif
/* USB Stack Initialization */
USB_Init();
}
