X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/eee252603be67c539f9986cde76454f756e55d95..5cae54154506176d64a581c5b3d9550c901b570c:/Projects/USBtoSerial/USBtoSerial.c?ds=inline diff --git a/Projects/USBtoSerial/USBtoSerial.c b/Projects/USBtoSerial/USBtoSerial.c index 5fd719224..84ec2befa 100644 --- a/Projects/USBtoSerial/USBtoSerial.c +++ b/Projects/USBtoSerial/USBtoSerial.c @@ -1,13 +1,13 @@ /* LUFA Library - Copyright (C) Dean Camera, 2012. + Copyright (C) Dean Camera, 2013. dean [at] fourwalledcubicle [dot] com www.lufa-lib.org */ /* - Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2013 Dean Camera (dean [at] fourwalledcubicle [dot] com) Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted @@ -56,7 +56,7 @@ USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface = { .Config = { - .ControlInterfaceNumber = 0, + .ControlInterfaceNumber = INTERFACE_ID_CDC_CCI, .DataINEndpoint = { .Address = CDC_TX_EPADDR, @@ -99,24 +99,20 @@ int main(void) { int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface); - /* Read bytes from the USB OUT endpoint into the USART transmit buffer */ + /* Store received byte into the USART transmit buffer */ if (!(ReceivedByte < 0)) RingBuffer_Insert(&USBtoUSART_Buffer, ReceivedByte); } - /* Check if the UART receive buffer flush timer has expired or the buffer is nearly full */ uint16_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer); - if ((TIFR0 & (1 << TOV0)) || (BufferCount > (uint8_t)(sizeof(USARTtoUSB_Buffer_Data) * .75))) + if (BufferCount) { Endpoint_SelectEndpoint(VirtualSerial_CDC_Interface.Config.DataINEndpoint.Address); - + /* Check if a packet is already enqueued to the host - if so, we shouldn't try to send more data * until it completes as there is a chance nothing is listening and a lengthy timeout could occur */ if (Endpoint_IsINReady()) { - /* Clear flush timer expiry flag */ - TIFR0 |= (1 << TOV0); - /* Never send more than one bank size less one byte to the host at a time, so that we don't block * while a Zero Length Packet (ZLP) to terminate the transfer is sent if the host isn't listening */ uint8_t BytesToSend = MIN(BufferCount, (CDC_TXRX_EPSIZE - 1)); @@ -149,19 +145,18 @@ int main(void) /** 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 /* Hardware Initialization */ LEDs_Init(); USB_Init(); - - /* Start the flush timer so that overflows occur rapidly to push received bytes to the USB interface */ - TCCR0B = (1 << CS02); } /** Event handler for the library USB Connection event. */