Update Studio Integration DLL, to include package logging.

[pub/USBasp.git] / Projects / USBtoSerial / USBtoSerial.c

diff --git a/Projects/USBtoSerial/USBtoSerial.c b/Projects/USBtoSerial/USBtoSerial.c
index a500c83..266592b 100644 (file)
--- a/Projects/USBtoSerial/USBtoSerial.c
+++ b/Projects/USBtoSerial/USBtoSerial.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2013.
+     Copyright (C) Dean Camera, 2015.

 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*

-  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2015  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
 
   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 =
                        {
        {
                .Config =
                        {

-                               .ControlInterfaceNumber         = 0,
+                               .ControlInterfaceNumber         = INTERFACE_ID_CDC_CCI,

                                .DataINEndpoint                 =
                                        {
                                                .Address                = CDC_TX_EPADDR,
                                .DataINEndpoint                 =
                                        {
                                                .Address                = CDC_TX_EPADDR,


@@ -99,12 +99,11 @@ int main(void)
                {
                        int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
 
                {
                        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);
                }
 
                        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 (BufferCount)
                {
                uint16_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
                if (BufferCount)
                {


@@ -134,8 +133,8 @@ int main(void)
                        }
                }
 
                        }
                }
 

-               /* Load the next byte from the USART transmit buffer into the USART */
-               if (!(RingBuffer_IsEmpty(&USBtoUSART_Buffer)))
+               /* Load the next byte from the USART transmit buffer into the USART if transmit buffer space is available */
+               if (Serial_IsSendReady() && !(RingBuffer_IsEmpty(&USBtoUSART_Buffer)))

                  Serial_SendByte(RingBuffer_Remove(&USBtoUSART_Buffer));
 
                CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
                  Serial_SendByte(RingBuffer_Remove(&USBtoUSART_Buffer));
 
                CDC_Device_USBTask(&VirtualSerial_CDC_Interface);


@@ -146,12 +145,14 @@ int main(void)
 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 void SetupHardware(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);
        /* 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();
 
        /* Hardware Initialization */
        LEDs_Init();


@@ -193,7 +194,7 @@ ISR(USART1_RX_vect, ISR_BLOCK)
 {
        uint8_t ReceivedByte = UDR1;
 
 {
        uint8_t ReceivedByte = UDR1;
 

-       if (USB_DeviceState == DEVICE_STATE_Configured)
+       if ((USB_DeviceState == DEVICE_STATE_Configured) && !(RingBuffer_IsFull(&USARTtoUSB_Buffer)))

          RingBuffer_Insert(&USARTtoUSB_Buffer, ReceivedByte);
 }
 
          RingBuffer_Insert(&USARTtoUSB_Buffer, ReceivedByte);
 }
 


@@ -231,6 +232,9 @@ void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCI
                        break;
        }
 
                        break;
        }
 

+       /* Keep the TX line held high (idle) while the USART is reconfigured */
+       PORTD |= (1 << 3);
+

        /* Must turn off USART before reconfiguring it, otherwise incorrect operation may occur */
        UCSR1B = 0;
        UCSR1A = 0;
        /* Must turn off USART before reconfiguring it, otherwise incorrect operation may occur */
        UCSR1B = 0;
        UCSR1A = 0;


@@ -243,5 +247,8 @@ void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCI
        UCSR1C = ConfigMask;
        UCSR1A = (1 << U2X1);
        UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
        UCSR1C = ConfigMask;
        UCSR1A = (1 << U2X1);
        UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));

+
+       /* Release the TX line after the USART has been reconfigured */
+       PORTD &= ~(1 << 3);

 }
 
 }