Fixed Benito and USBtoSerial projects not turning off the USART before reconfiguring...

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

diff --git a/Projects/Benito/Benito.c b/Projects/Benito/Benito.c
index 71b187b..834554b 100644 (file)
--- a/Projects/Benito/Benito.c
+++ b/Projects/Benito/Benito.c
@@ -235,10 +235,18 @@ void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCI
                        break;
        }
        
-       UCSR1A = (1 << U2X1);
-       UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
-       UCSR1C = ConfigMask;    
+       /* Must turn off USART before reconfiguring it, otherwise incorrect operation may occur */
+       UCSR1A = 0;
+       UCSR1B = 0;
+       UCSR1C = 0;
+
+       /* Set the new baud rate before configuring the USART */
        UBRR1  = SERIAL_2X_UBBRVAL(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);
+       
+       /* Reconfigure the USART in double speed mode for a wider baud rate range at the expense of accuracy */
+       UCSR1A = (1 << U2X1);   
+       UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
+       UCSR1C = ConfigMask;
 }
 
 /** ISR to manage the reception of data from the serial port, placing received bytes into a circular buffer