diff options
Diffstat (limited to 'Projects/Benito')
| -rw-r--r-- | Projects/Benito/Benito.c | 33 | ||||
| -rw-r--r-- | Projects/Benito/Benito.txt | 5 | ||||
| -rw-r--r-- | Projects/Benito/Descriptors.h | 2 | ||||
| -rw-r--r-- | Projects/Benito/makefile | 1 |
4 files changed, 28 insertions, 13 deletions
diff --git a/Projects/Benito/Benito.c b/Projects/Benito/Benito.c index 32c663cb6..71b187bfb 100644 --- a/Projects/Benito/Benito.c +++ b/Projects/Benito/Benito.c @@ -51,6 +51,9 @@ volatile struct /** Previous state of the virtual DTR control line from the host */ bool PreviousDTRState = false; +/** Milliseconds remaining until the receive buffer is flushed to the USB host */ +uint8_t FlushPeriodRemaining = RECEIVE_BUFFER_FLUSH_MS; + /** 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 * within a device can be differentiated from one another. @@ -89,23 +92,14 @@ int main(void) for (;;) { /* Echo bytes from the host to the target via the hardware USART */ - while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface) > 0) + if (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface) && (UCSR1A & (1 << UDRE1))) { - Serial_TxByte(CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface)); + UDR1 = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface); LEDs_TurnOnLEDs(LEDMASK_TX); PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS; } - /* Echo bytes from the target to the host via the virtual serial port */ - while (Tx_Buffer.Count) - { - CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_AtomicRemove(&Tx_Buffer)); - - LEDs_TurnOnLEDs(LEDMASK_RX); - PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS; - } - /* Check if the millisecond timer has elapsed */ if (TIFR0 & (1 << OCF0A)) { @@ -131,6 +125,22 @@ int main(void) if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse)) LEDs_TurnOffLEDs(LEDMASK_RX); + /* Check if the receive buffer flush period has expired */ + if (!(--FlushPeriodRemaining) || (Tx_Buffer.Count > 200)) + { + /* Echo bytes from the target to the host via the virtual serial port */ + if (Tx_Buffer.Count) + { + while (Tx_Buffer.Count) + CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_AtomicRemove(&Tx_Buffer)); + + LEDs_TurnOnLEDs(LEDMASK_RX); + PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS; + } + + FlushPeriodRemaining = RECEIVE_BUFFER_FLUSH_MS; + } + /* Clear the millisecond timer CTC flag (cleared by writing logic one to the register) */ TIFR0 |= (1 << OCF0A); } @@ -148,7 +158,6 @@ void SetupHardware(void) wdt_disable(); /* Hardware Initialization */ - Serial_Init(9600, false); LEDs_Init(); USB_Init(); diff --git a/Projects/Benito/Benito.txt b/Projects/Benito/Benito.txt index dc10cadf6..ab3098392 100644 --- a/Projects/Benito/Benito.txt +++ b/Projects/Benito/Benito.txt @@ -96,5 +96,10 @@ * <td>Makefile LUFA_OPTS</td> * <td>Pulse length in milliseconds for the enumeration LED ping-poning between toggles.</td> * </tr> + * <tr> + * <td>RECEIVE_BUFFER_FLUSH_MS</td> + * <td>Makefile LUFA_OPTS</td> + * <td>Period between flushings of received data buffer to the attached USB host.</td> + * </tr> * </table> */ diff --git a/Projects/Benito/Descriptors.h b/Projects/Benito/Descriptors.h index 8012ebdde..a670563cf 100644 --- a/Projects/Benito/Descriptors.h +++ b/Projects/Benito/Descriptors.h @@ -56,7 +56,7 @@ #define CDC_NOTIFICATION_EPSIZE 8 /** Size in bytes of the CDC data IN and OUT endpoints. */ - #define CDC_TXRX_EPSIZE 16 + #define CDC_TXRX_EPSIZE 16 /* Type Defines: */ /** Type define for the device configuration descriptor structure. This must be defined in the diff --git a/Projects/Benito/makefile b/Projects/Benito/makefile index c08f1557f..3e0311e89 100644 --- a/Projects/Benito/makefile +++ b/Projects/Benito/makefile @@ -128,6 +128,7 @@ LUFA_OPTS += -D AVR_RESET_LINE_MASK="(1 << 4)" LUFA_OPTS += -D AVR_RESET_PULSE_MS=10 LUFA_OPTS += -D TX_RX_LED_PULSE_MS=30 LUFA_OPTS += -D PING_PONG_LED_PULSE_MS=100 +LUFA_OPTS += -D RECEIVE_BUFFER_FLUSH_MS=20 # Create the LUFA source path variables by including the LUFA root makefile |