X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/1d433d4506113c95285f633e3553ff62d4cfd05d..43a3350981f74aaa7455798d287465265f9e19d8:/Projects/USBtoSerial/USBtoSerial.c

diff --git a/Projects/USBtoSerial/USBtoSerial.c b/Projects/USBtoSerial/USBtoSerial.c
index 6afa41553..ad202178a 100644
--- a/Projects/USBtoSerial/USBtoSerial.c
+++ b/Projects/USBtoSerial/USBtoSerial.c
@@ -37,17 +37,16 @@
 #include "USBtoSerial.h"
 
 /** Circular buffer to hold data from the host before it is sent to the device via the serial port. */
-RingBuffer_t USBtoUSART_Buffer;
+static RingBuffer_t USBtoUSART_Buffer;
 
 /** Underlying data buffer for \ref USBtoUSART_Buffer, where the stored bytes are located. */
-uint8_t      USBtoUSART_Buffer_Data[128];
+static uint8_t      USBtoUSART_Buffer_Data[128];
 
 /** Circular buffer to hold data from the serial port before it is sent to the host. */
-RingBuffer_t USARTtoUSB_Buffer;
+static RingBuffer_t USARTtoUSB_Buffer;
 
 /** Underlying data buffer for \ref USARTtoUSB_Buffer, where the stored bytes are located. */
-uint8_t    USARTtoUSB_Buffer_Data[128];
-
+static uint8_t      USARTtoUSB_Buffer_Data[128];
 
 /** LUFA CDC Class driver interface configuration and state information. This structure is
  *  passed to all CDC Class driver functions, so that multiple instances of the same class
@@ -73,6 +72,7 @@ USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */
@@ -97,10 +97,10 @@ int main(void)
 			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 > 200))
+		if ((TIFR0 & (1 << TOV0)) || (BufferCount > (uint8_t)(sizeof(USARTtoUSB_Buffer_Data) * .75)))
 		{
 			/* Clear flush timer expiry flag */
 			TIFR0 |= (1 << TOV0);
@@ -122,7 +122,7 @@ int main(void)
 
 		/* Load the next byte from the USART transmit buffer into the USART */
 		if (!(RingBuffer_IsEmpty(&USBtoUSART_Buffer)))
-		  Serial_TxByte(RingBuffer_Remove(&USBtoUSART_Buffer));
+		  Serial_SendByte(RingBuffer_Remove(&USBtoUSART_Buffer));
 
 		CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
 		USB_USBTask();