/** Main program entry point. This routine configures the hardware required by the application, then
* enters a loop to run the application tasks in sequence.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&USARTtoUSB_Buffer);
sei();
for (;;)
{
HID_Device_USBTask(&Surface_HID_Interface);
USB_USBTask();
/* Turn off the Tx LED when the tick count reaches zero */
if (led1_ticks)
{
led1_ticks--;
if (led1_ticks == 0)
{
LEDs_TurnOffLEDs(LEDS_LED1);
}
}
/* Turn off the Rx LED when the tick count reaches zero */
if (led2_ticks)
{
led2_ticks--;
if (led2_ticks == 0)
{
LEDs_TurnOffLEDs(LEDS_LED2);
}
}
}
}
void SetupHardware(void)
{
// Disable watchdog if enabled by bootloader/fuses
MCUSR &= ~(1 << WDRF);
wdt_disable();
Serial_Init(31250, false);
// Start the flush timer so that overflows occur rapidly to
// push received bytes to the USB interface
TCCR0B = (1 << CS02);
// Serial Interrupts
UCSR1B = 0;
UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
// https://github.com/ddiakopoulos/hiduino/issues/13
/* Target /ERASE line is active HIGH: there is a mosfet that inverts logic */
// These are defined in the makefile...
AVR_ERASE_LINE_PORT |= AVR_ERASE_LINE_MASK;
AVR_ERASE_LINE_DDR |= AVR_ERASE_LINE_MASK;
// Disable clock division
//clock_prescale_set(clock_div_1);
CLKPR = (1 << CLKPCE);
CLKPR = (0 << CLKPS3) | (0 << CLKPS2) | (0 << CLKPS1) | (0 << CLKPS0);
LEDs_Init();
USB_Init();
LEDs_TurnOffLEDs(LEDS_LED1);
LEDs_TurnOffLEDs(LEDS_LED2);
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&USBtoUSART_Buffer);
RingBuffer_InitBuffer(&USARTtoUSB_Buffer);
sei();
for (;;)
{
/* Only try to read in bytes from the CDC interface if the transmit buffer is not full */
if (!(RingBuffer_IsFull(&USBtoUSART_Buffer)))
{
int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
/* Read bytes from the USB OUT endpoint 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 */
RingBuff_Count_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
if ((TIFR0 & (1 << TOV0)) || (BufferCount > BUFFER_NEARLY_FULL))
{
TIFR0 |= (1 << TOV0);
if (USARTtoUSB_Buffer.Count) {
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
}
/* Read bytes from the USART receive buffer into the USB IN endpoint */
while (BufferCount--)
CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_Remove(&USARTtoUSB_Buffer));
/* Turn off TX LED(s) once the TX pulse period has elapsed */
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
/* Turn off RX LED(s) once the RX pulse period has elapsed */
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
}
/* Load the next byte from the USART transmit buffer into the USART */
if (!(RingBuffer_IsEmpty(&USBtoUSART_Buffer))) {
Serial_TxByte(RingBuffer_Remove(&USBtoUSART_Buffer));
LEDs_TurnOnLEDs(LEDMASK_RX);
PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;
}
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
}
}
// From USB/Host to Arduino/Serial
void MIDI_To_Arduino(void)
{
// Device must be connected and configured for the task to run
if (USB_DeviceState != DEVICE_STATE_Configured) return;
// Select the MIDI OUT stream
Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPADDR);
/* Check if a MIDI command has been received */
if (Endpoint_IsOUTReceived())
{
MIDI_EventPacket_t MIDIEvent;
/* Read the MIDI event packet from the endpoint */
Endpoint_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
// Passthrough to Arduino
Serial_SendByte(MIDIEvent.Data1);
Serial_SendByte(MIDIEvent.Data2);
Serial_SendByte(MIDIEvent.Data3);
LEDs_TurnOffLEDs(LEDS_LED1);
rx_ticks = TICK_COUNT;
/* If the endpoint is now empty, clear the bank */
if (!(Endpoint_BytesInEndpoint()))
{
/* Clear the endpoint ready for new packet */
Endpoint_ClearOUT();
}
}
}
// From Arduino/Serial to USB/Host
void MIDI_To_Host(void)
{
// Device must be connected and configured for the task to run
if (USB_DeviceState != DEVICE_STATE_Configured) return;
// Select the MIDI IN stream
Endpoint_SelectEndpoint(MIDI_STREAM_IN_EPADDR);
if (Endpoint_IsINReady())
{
if (mPendingMessageValid == true)
{
mPendingMessageValid = false;
// Write the MIDI event packet to the endpoint
Endpoint_Write_Stream_LE(&mCompleteMessage, sizeof(mCompleteMessage), NULL);
// Clear out complete message
memset(&mCompleteMessage, 0, sizeof(mCompleteMessage));
// Send the data in the endpoint to the host
Endpoint_ClearIN();
LEDs_TurnOffLEDs(LEDS_LED2);
tx_ticks = TICK_COUNT;
}
}
}
int
main(void)
{
/* Disable watchdog */
MCUSR &= ~(1 << WDRF);
wdt_disable();
/* Disable clock division */
clock_prescale_set(clock_div_1);
LEDs_Init();
usb_init();
sei();
char c;
for (;;) {
c = getchar();
switch (c) {
case '1':
printf("ok\r\n");
LEDs_TurnOnLEDs(LEDS_LED1);
break;
case '0':
printf("ok\r\n");
LEDs_TurnOffLEDs(LEDS_LED1);
break;
default:
printf("error\r\n");
}
}
}
int main(void)
{
uint_reg_t Dummy;
/* =============================
* Buttons Compile Check
* ============================= */
// cppcheck-suppress redundantAssignment
Dummy = BUTTONS_BUTTON1;
Buttons_Init();
// cppcheck-suppress redundantAssignment
Dummy = Buttons_GetStatus();
Buttons_Disable();
/* =============================
* Dataflash Compile Check
* ============================= */
// cppcheck-suppress redundantAssignment
Dummy = DATAFLASH_TOTALCHIPS + DATAFLASH_NO_CHIP + DATAFLASH_CHIP1 + DATAFLASH_PAGE_SIZE + DATAFLASH_PAGES;
Dataflash_Init();
Dataflash_TransferByte(0);
Dataflash_SendByte(0);
// cppcheck-suppress redundantAssignment
Dummy = Dataflash_ReceiveByte();
// cppcheck-suppress redundantAssignment
Dummy = Dataflash_GetSelectedChip();
Dataflash_SelectChip(DATAFLASH_CHIP1);
Dataflash_DeselectChip();
Dataflash_SelectChipFromPage(0);
Dataflash_ToggleSelectedChipCS();
Dataflash_WaitWhileBusy();
Dataflash_SendAddressBytes(0, 0);
/* =============================
* LEDs Compile Check
* ============================= */
// cppcheck-suppress redundantAssignment
Dummy = LEDS_LED1 + LEDS_LED2 + LEDS_LED3 + LEDS_LED4;
LEDs_Init();
LEDs_TurnOnLEDs(LEDS_ALL_LEDS);
LEDs_TurnOffLEDs(LEDS_ALL_LEDS);
LEDs_SetAllLEDs(LEDS_ALL_LEDS);
LEDs_ChangeLEDs(LEDS_ALL_LEDS, LEDS_NO_LEDS);
LEDs_ToggleLEDs(LEDS_ALL_LEDS);
// cppcheck-suppress redundantAssignment
Dummy = LEDs_GetLEDs();
LEDs_Disable();
/* =============================
* Joystick Compile Check
* ============================= */
// cppcheck-suppress redundantAssignment
Dummy = JOY_LEFT + JOY_RIGHT + JOY_UP + JOY_DOWN + JOY_PRESS;
Joystick_Init();
// cppcheck-suppress redundantAssignment
Dummy = Joystick_GetStatus();
Joystick_Disable();
(void)Dummy;
}
int main(void)
{
uint_reg_t Dummy;
/* =============================
* Buttons Compile Check
* ============================= */
Buttons_Init();
// cppcheck-suppress redundantAssignment
Dummy = Buttons_GetStatus();
Buttons_Disable();
/* =============================
* Dataflash Compile Check
* ============================= */
Dataflash_Init();
Dataflash_TransferByte(0);
Dataflash_SendByte(0);
// cppcheck-suppress redundantAssignment
Dummy = Dataflash_ReceiveByte();
// cppcheck-suppress redundantAssignment
Dummy = Dataflash_GetSelectedChip();
Dataflash_SelectChip(0);
Dataflash_DeselectChip();
Dataflash_SelectChipFromPage(0);
Dataflash_ToggleSelectedChipCS();
Dataflash_WaitWhileBusy();
Dataflash_SendAddressBytes(0, 0);
/* =============================
* LEDs Compile Check
* ============================= */
LEDs_Init();
LEDs_TurnOnLEDs(LEDS_ALL_LEDS);
LEDs_TurnOffLEDs(LEDS_ALL_LEDS);
LEDs_SetAllLEDs(LEDS_ALL_LEDS);
LEDs_ChangeLEDs(LEDS_ALL_LEDS, LEDS_NO_LEDS);
LEDs_ToggleLEDs(LEDS_ALL_LEDS);
// cppcheck-suppress redundantAssignment
Dummy = LEDs_GetLEDs();
LEDs_Disable();
/* =============================
* Joystick Compile Check
* ============================= */
Joystick_Init();
// cppcheck-suppress redundantAssignment
Dummy = Joystick_GetStatus();
Joystick_Disable();
(void)Dummy;
}
// write (length) bytes, (start) is a byte address
uint8_t write_eeprom_chunk(int start, int length) {
// this writes byte-by-byte,
// page writing may be faster (4 bytes at a time)
fill(length);
LEDs_TurnOffLEDs(LEDS_PMODE);
for (int x = 0; x < length; x++) {
//TODO check here if we can use intern address
int addr = start + x;
accessData(0xC0, addr, ram.RingBuffer_Data[x]);
_delay_ms(45);
}
LEDs_TurnOnLEDs(LEDS_PMODE);
return STK_OK;
}
void MIDI_IN(void) {
MIDI_EventPacket_t ReceivedMIDIEvent;
if (MIDI_Device_ReceiveEventPacket(&MIDI_Interface, &ReceivedMIDIEvent)) {
LEDs_TurnOnLEDs(LEDMASK_RX);
Serial_TxByte(ReceivedMIDIEvent.Data1);
Serial_TxByte(ReceivedMIDIEvent.Data2);
Serial_TxByte(ReceivedMIDIEvent.Data3);
}
else {
LEDs_TurnOffLEDs(LEDMASK_RX);
}
}
void WiFiEchoTest(void) {
uint8_t c = 0;
while (TRUE) {
// Wait until FIFO empty and write char
while (!UartTxFifoEmpty());
UartPutchar(c);
// Waitn until char is echoed and compare with sent
while (!UartRxFifoData());
if (c != UartGetchar()) {
// Received character does not match!
LEDs_TurnOffLEDs(LEDS_LED2);
LEDs_ToggleLEDs(LEDS_LED1);
}
c++;
}
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&USARTtoUSB_Buffer, USARTtoUSB_Buffer_Data, sizeof(USARTtoUSB_Buffer_Data));
sei();
for (;;)
{
/* Echo bytes from the host to the target via the hardware USART */
if ((UCSR1A & (1 << UDRE1)) && CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
{
UDR1 = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
}
/* Check if the millisecond timer has elapsed */
if (TIFR0 & (1 << OCF0A))
{
/* Clear flush timer expiry flag */
TIFR0 |= (1 << TOV0);
/* Check if the reset pulse period has elapsed, if so tristate the target reset line */
if (PulseMSRemaining.ResetPulse && !(--PulseMSRemaining.ResetPulse))
{
LEDs_TurnOffLEDs(LEDMASK_BUSY);
AVR_RESET_LINE_DDR &= ~AVR_RESET_LINE_MASK;
}
/* Check if the LEDs should be ping-ponging (during enumeration) */
if (PulseMSRemaining.PingPongLEDPulse && !(--PulseMSRemaining.PingPongLEDPulse))
{
LEDs_ToggleLEDs(LEDMASK_TX | LEDMASK_RX);
PulseMSRemaining.PingPongLEDPulse = PING_PONG_LED_PULSE_MS;
}
/* Turn off TX LED(s) once the TX pulse period has elapsed */
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
/* Turn off RX LED(s) once the RX pulse period has elapsed */
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
/* Check if the receive buffer flush period has expired */
uint16_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
if (!(--FlushPeriodRemaining) || (BufferCount > 200))
{
FlushPeriodRemaining = RECEIVE_BUFFER_FLUSH_MS;
/* Start RX LED indicator pulse */
if (BufferCount)
{
LEDs_TurnOnLEDs(LEDMASK_RX);
PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;
}
/* Echo bytes from the target to the host via the virtual serial port */
while (BufferCount--)
{
/* Try to send the next byte of data to the host, abort if there is an error without dequeuing */
if (CDC_Device_SendByte(&VirtualSerial_CDC_Interface,
RingBuffer_Peek(&USARTtoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError)
{
break;
}
/* Dequeue the already sent byte from the buffer now we have confirmed that no transmission error occurred */
RingBuffer_Remove(&USARTtoUSB_Buffer);
}
}
}
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
}
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
MIDI_EventPacket_t midiEvent;
struct {
uint8_t command;
uint8_t channel;
uint8_t data2;
uint8_t data3;
} midiMsg;
int ind;
int led1_ticks = 0;
int led2_ticks = 0;
SetupHardware();
RingBuffer_InitBuffer(&USBtoUSART_Buffer);
RingBuffer_InitBuffer(&USARTtoUSB_Buffer);
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
sei();
for (;;) {
RingBuff_Count_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
/* See if we have a message yet */
if (BufferCount >= 4) {
/* Read in the message from the serial buffer */
for (ind=0; ind<4; ind++) {
((uint8_t *)&midiMsg)[ind] = RingBuffer_Remove(&USARTtoUSB_Buffer);
}
/* Build a midi event to send via USB */
midiEvent.CableNumber = 0;
midiEvent.Command = midiMsg.command >> 4;
midiEvent.Data1 = (midiMsg.command & 0xF0) | ((midiMsg.channel-1) & 0x0F);
midiEvent.Data2 = midiMsg.data2;
midiEvent.Data3 = midiMsg.data3;
MIDI_Device_SendEventPacket(&Keyboard_MIDI_Interface, &midiEvent);
MIDI_Device_Flush(&Keyboard_MIDI_Interface);
/* Turn on the TX led and starts its timer */
LEDs_TurnOnLEDs(LEDS_LED1);
led1_ticks = LED_ON_TICKS;
}
/* Turn off the Tx LED when the tick count reaches zero */
if (led1_ticks) {
led1_ticks--;
if (led1_ticks == 0) {
LEDs_TurnOffLEDs(LEDS_LED1);
}
}
if (MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &midiEvent)) {
RingBuff_Count_t count = RingBuffer_GetCount(&USBtoUSART_Buffer);
/* Room to send a message? */
if ((BUFFER_SIZE - count) >= sizeof(midiMsg)) {
midiMsg.command = midiEvent.Command << 4;
midiMsg.channel = (midiEvent.Data1 & 0x0F) + 1;
midiMsg.data2 = midiEvent.Data2;
midiMsg.data3 = midiEvent.Data3;
for (ind=0; ind<sizeof(midiMsg); ind++) {
RingBuffer_Insert(&USBtoUSART_Buffer, ((uint8_t *)&midiMsg)[ind]);
}
/* Turn on the RX led and start its timer */
LEDs_TurnOnLEDs(LEDS_LED2);
led2_ticks = LED_ON_TICKS;
} else {
/* Turn on the RX led and leave it on to indicate the
* buffer is full and the sketch is not reading it
* fast enough.
*/
LEDs_TurnOnLEDs(LEDS_LED2);
}
/* if there's no room in the serial buffer the message gets dropped */
}
/* Turn off the RX LED when the tick count reaches zero */
if (led2_ticks) {
led2_ticks--;
if (led2_ticks == 0) {
LEDs_TurnOffLEDs(LEDS_LED2);
}
}
/* any data to send to main processor? */
if (!(RingBuffer_IsEmpty(&USBtoUSART_Buffer))) {
Serial_TxByte(RingBuffer_Remove(&USBtoUSART_Buffer));
}
MIDI_Device_USBTask(&Keyboard_MIDI_Interface);
USB_USBTask();
}
}
// Main
int main(void)
{
setupHardware();
LEDs_TurnOnLEDs(LEDMASK_USB_NOTREADY);
sei();
while(1)
{
// Perform the HID specific tasks
hidTask();
// Perform the USB library tasks
USB_USBTask();
// Show command processing activity on led 1 (Rx)
if (activityIndicatorRx > 0)
{
// See if this is the first loop
if (activityIndicatorRx == 1) LEDs_TurnOnLEDs(LEDS_LED1);
activityIndicatorRx++;
if (activityIndicatorRx > 5000) // Flash length is in loops (16 bit maximum)
{
// Turn the indicator off
activityIndicatorRx = 0;
LEDs_TurnOffLEDs(LEDS_LED1);
}
}
// Show command processing activity on led 2 (Tx)
if (activityIndicatorTx > 0)
{
// See if this is the first loop
if (activityIndicatorTx == 1) LEDs_TurnOnLEDs(LEDS_LED2);
activityIndicatorTx++;
if (activityIndicatorTx > 5000) // Flash length is in loops (16 bit maximum)
{
// Turn the indicator off
activityIndicatorTx = 0;
LEDs_TurnOffLEDs(LEDS_LED2);
}
}
// Show flashing for system/blink command on led 3 (L)
if (activityIndicatorL > 0)
{
// See if this is the first loop
if (activityIndicatorL == 1)
{
LEDs_TurnOnLEDs(LEDS_LED3);
activityIndicatorLblink = 0;
}
// Increment the activity counters
activityIndicatorL++;
activityIndicatorLblink++;
// Control the flashing of the LED
if (activityIndicatorLblink == 5000) LEDs_TurnOffLEDs(LEDS_LED3);
if (activityIndicatorLblink == 10000)
{
LEDs_TurnOnLEDs(LEDS_LED3);
activityIndicatorLblink = 0;
}
if (activityIndicatorL > 200000) // Flash length is in loops (32 bit maximum)
{
// Turn the indicator off
activityIndicatorL = 0;
// Default state of the L LED is on
LEDs_TurnOnLEDs(LEDS_LED3);
}
}
}
}
void avrisp(int ReceivedByte){
// is pmode active?
if (ram.isp.pmode) LEDs_TurnOnLEDs(LEDS_PMODE);
else LEDs_TurnOffLEDs(LEDS_PMODE);
// is there an error?
if (ram.isp.error) LEDs_TurnOnLEDs(LEDS_ERR);
else LEDs_TurnOffLEDs(LEDS_ERR);
// read in bytes from the CDC interface
if (!(ReceivedByte < 0)){
switch (ReceivedByte) {
case STK_GET_SYNC:
ram.isp.error = 0;
replyOK();
break;
case STK_GET_SIGNON:
if (getch() == CRC_EOP) {
sendCDCbyte(STK_INSYNC);
sendCDCbyte('A');
sendCDCbyte('V');
sendCDCbyte('R');
sendCDCbyte(' ');
sendCDCbyte('I');
sendCDCbyte('S');
sendCDCbyte('P');
sendCDCbyte(STK_OK);
}
break;
case STK_GET_PARM:
get_parameters(getch());
break;
case STK_SET_PARM:
set_parameters();
replyOK();
break;
case STK_SET_PARM_EXT: // extended parameters - ignore for now
fill(5);
replyOK();
break;
case STK_PMODE_START:
start_pmode();
replyOK();
break;
case STK_SET_ADDR:
ram.isp._addr = getch();
ram.isp._addr += 256 * getch();
replyOK();
break;
case STK_PROG_FLASH:
//uint8_t low = getch();
getch();
//uint8_t high = getch();
getch();
replyOK();
break;
case STK_PROG_DATA:
//uint8_t data = getch();
getch();
replyOK();
break;
case STK_PROG_PAGE:
program_page();
break;
case STK_READ_PAGE:
read_page();
break;
case STK_UNIVERSAL:
universal();
break;
case STK_PMODE_END:
ram.isp.error = 0;
end_pmode();
replyOK();
break;
case STK_READ_SIGN:
read_signature();
break;
// expecting a command, not CRC_EOP
// this is how we can get back in sync
case CRC_EOP:
ram.isp.error++;
sendCDCbyte(STK_NOSYNC);
break;
// anything else we will return STK_UNKNOWN
default:
ram.isp.error++;
if (CRC_EOP == getch())
sendCDCbyte(STK_UNKNOWN);
else
sendCDCbyte(STK_NOSYNC);
}
}
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&USBtoUSART_Buffer, USBtoUSART_Buffer_Data, sizeof(USBtoUSART_Buffer_Data));
RingBuffer_InitBuffer(&USARTtoUSB_Buffer, USARTtoUSB_Buffer_Data, sizeof(USARTtoUSB_Buffer_Data));
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
GlobalInterruptEnable();
for (;;)
{
/* Only try to read in bytes from the CDC interface if the transmit buffer is not full */
if (!(RingBuffer_IsFull(&USBtoUSART_Buffer)))
{
int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
/* Store received byte into the USART transmit buffer */
if (!(ReceivedByte < 0))
RingBuffer_Insert(&USBtoUSART_Buffer, ReceivedByte);
}
uint16_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
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())
{
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
/* 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));
/* Read bytes from the USART receive buffer into the USB IN endpoint */
while (BytesToSend--)
{
/* Try to send the next byte of data to the host, abort if there is an error without dequeuing */
if (CDC_Device_SendByte(&VirtualSerial_CDC_Interface,
RingBuffer_Peek(&USARTtoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError)
{
break;
}
/* Dequeue the already sent byte from the buffer now we have confirmed that no transmission error occurred */
RingBuffer_Remove(&USARTtoUSB_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));
LEDs_TurnOnLEDs(LEDMASK_RX);
PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;
}
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
/* Turn off TX LED(s) once the TX pulse period has elapsed */
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
/* Turn off RX LED(s) once the RX pulse period has elapsed */
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
}
}
int main(void)
{
unsigned char tmp;
wdt_disable(); /* Disable watchdog if enabled by bootloader/fuses */
// Buttons_Init();
LEDs_Init();
clock_prescale_set(clock_div_1);
// Timer 0 setup for simple count mode, used as timebase for IR-Signal capture
TCCR0A = 0; // simple count more
TCCR0B = 5; // system Clock 16Mhz/1024 = 64us per counter tick
TIMSK0 = 0x1; // Enable overflow interrupt enable
TIFR0 = 0; // clear Overflow interrupt flag before enabling interrupts
EIFR =0 ; // clear external interrupt register
DDRD = 0; // all inputs
DDRC = 0; // all inputs
PORTD = 0x80; // pull-up on PD0
MCUSR =0;
// Timer 1 setup for fast PWM mode for servo pulse generation 1 to 2ms
DDRB = 0x81; // PB7 = output OC1_C, PB0 =LED
TIMSK1 = 0; // timer 1 running with no interrupts
TCCR1A = 0x0F; // use OC1_C pin for servo pulse
TCCR1B = 0x0C; // Fast PWM 10bit, clock/256
OCR1C = SERVO_POS_RIGHT;
EIFR = 0 ; // clear external interrupt flag
EICRA = 0x3; // set interrupt to raising edge trigger
EIMSK = 0x01; // enable INT0 (pin pb0 alternate function)
sei(); //enable external interrupts
// set initial state
Signal_captured = 1;
IR_code = VIZIO_GREEN_BTN;
while(1)
{
/*// for manual toggling via HWB button
if (IsButtonPressed(BUTTONS_BUTTON1) )
{
// de-bounce -- 5 consecutive reads of switch open
for (tmp =0; tmp<=5; tmp++)
{
_delay_ms(1);
if (IsButtonPressed(BUTTONS_BUTTON1))
tmp = 0;
}
if (IR_code == VIZIO_GREEN_BTN )
IR_code = VIZIO_RED_BTN;
else
IR_code = VIZIO_GREEN_BTN;
Signal_captured = 1;
}
*/
if ( Signal_captured )
{
switch (IR_code)
{
case VIZIO_GREEN_BTN: // Vizio Code Green button
LEDs_TurnOnLEDs(LEDS_LED1);
OCR1C = SERVO_POS_LEFT;
break;
case VIZIO_RED_BTN: // Vizio Code Red button
LEDs_TurnOffLEDs(LEDS_LED1);
OCR1C = SERVO_POS_RIGHT;
break;
}
Signal_captured = 0;
}
}
}
void commit(int addr) {
LEDs_TurnOffLEDs(LEDS_PMODE);
accessData(0x4C, addr, 0x00);
_delay_ms(30);
LEDs_TurnOnLEDs(LEDS_PMODE);
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&Tx_Buffer);
sei();
for (;;)
{
/* Echo bytes from the host to the target via the hardware USART */
int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
if (!(ReceivedByte < 0) && (UCSR1A & (1 << UDRE1)))
{
UDR1 = ReceivedByte;
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
}
/* Check if the millisecond timer has elapsed */
if (TIFR0 & (1 << OCF0A))
{
/* Check if the reset pulse period has elapsed, if so tristate the target reset line */
if (PulseMSRemaining.ResetPulse && !(--PulseMSRemaining.ResetPulse))
{
LEDs_TurnOffLEDs(LEDMASK_BUSY);
AVR_RESET_LINE_DDR &= ~AVR_RESET_LINE_MASK;
}
/* Check if the LEDs should be ping-ponging (during enumeration) */
if (PulseMSRemaining.PingPongLEDPulse && !(--PulseMSRemaining.PingPongLEDPulse))
{
LEDs_ToggleLEDs(LEDMASK_TX | LEDMASK_RX);
PulseMSRemaining.PingPongLEDPulse = PING_PONG_LED_PULSE_MS;
}
/* Turn off TX LED(s) once the TX pulse period has elapsed */
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
/* Turn off RX LED(s) once the RX pulse period has elapsed */
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
/* Check if the receive buffer flush period has expired */
RingBuff_Count_t BufferCount = RingBuffer_GetCount(&Tx_Buffer);
if (!(--FlushPeriodRemaining) || (BufferCount > 200))
{
/* Echo bytes from the target to the host via the virtual serial port */
if (BufferCount)
{
while (BufferCount--)
CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_Remove(&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);
}
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
}
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&USBtoUSART_Buffer);
RingBuffer_InitBuffer(&USARTtoUSB_Buffer);
setupEeprom();
sei();
for (;;)
{
// Only try to read in bytes from the CDC interface if the transmit buffer is not full
if (!(RingBuffer_IsFull(&USBtoUSART_Buffer)))
{
int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
// Read bytes from the USB OUT endpoint 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
RingBuff_Count_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
if ((TIFR0 & (1 << TOV0)) || (BufferCount > BUFFER_NEARLY_FULL))
{
TIFR0 |= (1 << TOV0);
if (USARTtoUSB_Buffer.Count) {
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
}
// Read bytes from the USART receive buffer into the USB IN endpoint
while (BufferCount--)
CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_Remove(&USARTtoUSB_Buffer));
// Turn off TX LED(s) once the TX pulse period has elapsed
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
// Turn off RX LED(s) once the RX pulse period has elapsed
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
if (ResetTimer > 0)
{
// SAM3X RESET/ERASE Sequence
// --------------------------
if (ResetTimer == 95) {
eepromInterruptDisable();
setErasePin(true);
setResetPin(false);
}
if (ResetTimer == 35) {
eepromInterruptDisable();
setErasePin(false);
setResetPin(false);
}
if (ResetTimer == 25) {
eepromInterruptDisable();
setErasePin(false);
setResetPin(true);
}
if (ResetTimer == 1) {
eepromInterruptDisable();
setErasePin(false);
setResetPin(false);
}
ResetTimer--;
} else {
setErasePin(false);
setResetPin(false);
eepromInterruptEnable();
}
}
// Load the next byte from the USART transmit buffer into the USART
if (!(RingBuffer_IsEmpty(&USBtoUSART_Buffer))) {
Serial_TxByte(RingBuffer_Remove(&USBtoUSART_Buffer));
LEDs_TurnOnLEDs(LEDMASK_RX);
PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;
}
// CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
// USB_USBTask();
serviceEepromRequest();
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
}
}
