int main(void) {
InitializeSystem();
initADCDMA();
#if defined(USB_INTERRUPT)
if(USB_BUS_SENSE && (USBGetDeviceState() == DETACHED_STATE))
{
USBDeviceAttach();
}
#endif
#if defined(USB_POLLING)
// Check bus status and service USB interrupts.
USBDeviceTasks();
#endif
while(1)
{
if (!ADC_DATA_READY)
continue;
ADC_DATA_READY = 0;
RunFFT();
putrsUSBUSART((char*)&fftOut[0].real);
ProcessIO();
}
return (EXIT_SUCCESS);
}
void ProcessIO(void)
{
BYTE numBytesRead;
//Blink the LEDs according to the USB device status
BlinkUSBStatus();
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
if(buttonPressed)
{
if(stringPrinted == FALSE)
{
if(mUSBUSARTIsTxTrfReady())
{
putrsUSBUSART("Button Pressed data-- \r\n");
stringPrinted = TRUE;
}
}
}
else
{
stringPrinted = FALSE;
}
if(USBUSARTIsTxTrfReady())
{
numBytesRead = getsUSBUSART(USB_Out_Buffer,64);
if(numBytesRead != 0)
{
BYTE i;
for(i=0;i<numBytesRead;i++)
{
switch(USB_Out_Buffer[i])
{
case 0x0A:
case 0x0D:
putUSBUSART(&USB_Out_Buffer[i],numBytesRead);
break;
case 0x53://letter S to start sampling
ReadADC();
putUSBUSART(ADC_sample,SAMPLE_SIZE);
break;
case 0x51: //letter Q to stop
break;
default:
putUSBUSART(&USB_Out_Buffer[i],numBytesRead);
break;
}
}
//putUSBUSART(USB_In_Buffer,numBytesRead);
}
}
CDCTxService();
} //end ProcessIO
/********************************************************************
* Function: void ProcessMenu(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function parses the input string given
* by the user.
*
* Note: None
*******************************************************************/
void ProcessMenu(void)
{
int i; // Debug
// If the line is empty return.
if(RS232cp == 0) return;
// Strip the CR/NL character.
RS232_Out_Data[RS232cp] = '\0';
// Test different menu options
if(strcmpram2pgm("help", RS232_Out_Data) == 0)
putrsUSBUSART("\r\nAvailable commands:\r\n\r\n* help - Displays this message, recursive style!\r\n* setMessage <text> - Defines a new message to be displayed on the POV.\r\n* showMessage - Shows the current message\r\n* version - Displays firmware version.");
else if(strncmpram2pgm("setMessage ", RS232_Out_Data, 10) == 0)
{
// Copy message
strncpy(message, &RS232_Out_Data[11], MESSAGE_LENGTH);
message[MESSAGE_LENGTH] = '\0';
writeEEPROM(0x00, crc(0x00, (char) strlen(message)));
writeEEPROM(0x01, (char) strlen(message));
writeStrEEPROM(0x03, strlen(message), message);
writeEEPROM(0x02, strcrc(message));
// Display confirmation
strcpypgm2ram(RS232_Out_Data, "\r\nYour message is now defined as:\r\n\t");
strcat(RS232_Out_Data, message);
putsUSBUSART(RS232_Out_Data);
}
else if(strcmpram2pgm("showMessage", RS232_Out_Data) == 0)
{
sprintf(RS232_Out_Data, "\r\nYour message is defined as:\r\n\t%s", message);
putsUSBUSART(RS232_Out_Data);
}
else if(strcmpram2pgm("version", RS232_Out_Data) == 0)
putrsUSBUSART("\r\nPOV serial configuration. Version 0.9");
else
putrsUSBUSART("\r\nUnknown command. Type 'help' for the list of available commands.");
clearRS232Buffer = 1;
}
/********************************************************************
* Function: void ProcessIO(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function is a place holder for other user
* routines. It is a mixture of both USB and
* non-USB tasks.
*
* Note: None
*******************************************************************/
void ProcessIO(void)
{
//Blink the LEDs according to the USB device status
BlinkUSBStatus();
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
if(mUSBUSARTIsTxTrfReady())
{
putrsUSBUSART("test123");
}
CDCTxService();
} //end ProcessIO
// *--------------------------------------------------------------------------------*
void ProcessIO(void){
BYTE numBytesRead;
//Blink the LEDs according to the USB device status
BlinkUSBStatus();
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
if(buttonPressed){
if(stringPrinted == FALSE){
if(mUSBUSARTIsTxTrfReady()){
putrsUSBUSART("Button Pressed -- \r\n");
stringPrinted = TRUE;
}
}
}else{
stringPrinted = FALSE;
}
if(USBUSARTIsTxTrfReady()){
numBytesRead = getsUSBUSART(USB_Out_Buffer,64);
if(numBytesRead != 0){
BYTE i;
for(i=0;i<numBytesRead;i++){
switch(USB_Out_Buffer[i]){
case 0x0A:
case 0x0D:
USB_In_Buffer[i] = USB_Out_Buffer[i];
break;
default:
USB_In_Buffer[i] = USB_Out_Buffer[i] + 1;
break;
}
}
putUSBUSART(USB_In_Buffer,numBytesRead);
}
}
CDCTxService();
}
/********************************************************************
* Function: void ProcessIO(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function is a place holder for other user
* routines. It is a mixture of both USB and
* non-USB tasks.
*
* Note: None
*******************************************************************/
void ProcessIO(void)
{
char backSpace[3] = {0x8,' ',0x8};
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
// If DTR is low no client is connected, back to default.
if (UART_DTR == 0) { nextProcessState = P_VERSION; RS232cp = 0; }
// Print welcome message
if(USBUSARTIsTxTrfReady() && (UART_DTR == 1))
{
setLEDs(0);
// Print Version
if(nextProcessState == P_VERSION)
{
putrsUSBUSART("\r\n POV serial configuration. Version 0.9\r\n\r\n\ttype 'help' for the list of available commands.\r\n");
nextProcessState = P_PROMPT;
}
// Print Prompt
else if(nextProcessState == P_PROMPT)
{
putrsUSBUSART("\r\n>> ");
nextProcessState = P_INPUT;
}
else if (nextProcessState == P_INPUT)
{
// In case the buffer is full, reset the input buffer and display error message.
if (RS232cp == CDC_DATA_IN_EP_SIZE)
{
RS232cp = 0;
nextProcessState = P_PROMPT;
}
// Process IO
else
{
LastRS232Out = getsUSBUSART(&(RS232_Out_Data[RS232cp]), 1);
if(LastRS232Out > 0)
switch(RS232_Out_Data[RS232cp])
{
// Enter/Return, process message
case 0x0A:
case 0x0D: ProcessMenu(); RS232cp = 0; nextProcessState = P_PROMPT; break;
// Backspace
case 0x7F:
case 0x08: if(RS232cp > 0) {putUSBUSART(backSpace,3); RS232cp--;} break;
// Replay character to user
default: putUSBUSART(&(RS232_Out_Data[RS232cp]), 1); RS232cp++;
}
}
}
}
CDCTxService();
// Limpa o buffer caso necess‡rio :)
if(clearRS232Buffer == 1)
{
memset(RS232_Out_Data, '\0', sizeof(RS232_Out_Data));
clearRS232Buffer = 0;
}
} //end ProcessIO
/*********************************************************************
* Function: void APP_DeviceCDCBasicDemoTasks(void);
*
* Overview: Keeps the demo running.
*
* PreCondition: The demo should have been initialized and started via
* the APP_DeviceCDCBasicDemoInitialize() and APP_DeviceCDCBasicDemoStart() demos
* respectively.
*
* Input: None
*
* Output: None
*
********************************************************************/
void APP_DeviceCDCBasicDemoTasks()
{
static uint8_t msg_buf_idx = 0;
static bool msg_done = false;
static char msg_type;
/* Check to see if there is a transmission in progress, if there isn't, then
* we can see about performing an echo response to data received.
*/
if( USBUSARTIsTxTrfReady() == true)
{
uint8_t i;
uint8_t numBytesRead;
numBytesRead = getsUSBUSART(readBuffer, sizeof(readBuffer));
/* For every byte that was read... */
for(i=0; i<numBytesRead; i++)
{
if(msg_buf_idx == MSG_BUF_SIZE)
{
putrsUSBUSART(buttonMessage);
msg_buf_idx = 0;
msg_buffer[0] = 0;
break;
}
else
{
if(readBuffer[i] == '\r' || readBuffer[i] == '\n')
{
msg_buffer[msg_buf_idx] = 0;
msg_done = true;
break;
}
if(readBuffer[i] >= '0' && readBuffer[i] <= '9')
{
msg_buffer[msg_buf_idx] = readBuffer[i];
msg_buf_idx++;
}
else
{
msg_type = readBuffer[i];
msg_buf_idx = 0;
msg_buffer[msg_buf_idx] = 0;
}
msg_done = false;
}
}
if(numBytesRead > 0 && msg_done == true && msg_buf_idx > 0)
{
/* After processing all of the received data, we need to send out
* the "echo" data now.
*/
int number;
number = atoi(msg_buffer);
//sprintf(writeBuffer, "Type: %c, number: %d\r\n", msg_type, number);
if(msg_type == 'c' && number > 0 && number < 128)
{
PWM1DCH = (uint8_t)number;
}
if(msg_type == 'm' && number > 0 && number < 128)
{
PWM2DCH = (uint8_t)number;
}
//putrsUSBUSART(writeBuffer);
msg_buf_idx = 0;
}
}
CDCTxService();
}
/*********************************************************************
* Function: void APP_DeviceCDCBasicDemoTasks(void);
*
* Overview: Keeps the demo running.
*
* PreCondition: The demo should have been initialized and started via
* the APP_DeviceCDCBasicDemoInitialize() and APP_DeviceCDCBasicDemoStart() demos
* respectively.
*
* Input: None
*
* Output: None
*
********************************************************************/
void APP_DeviceCDCBasicDemoTasks()
{
/* If the user has pressed the button associated with this demo, then we
* are going to send a "Button Pressed" message to the terminal.
*/
if(BUTTON_IsPressed(BUTTON_DEVICE_CDC_BASIC_DEMO) == true)
{
/* Make sure that we only send the message once per button press and
* not continuously as the button is held.
*/
if(buttonPressed == false)
{
/* Make sure that the CDC driver is ready for a transmission.
*/
if(mUSBUSARTIsTxTrfReady() == true)
{
putrsUSBUSART(buttonMessage);
buttonPressed = true;
}
}
}
else
{
/* If the button is released, we can then allow a new message to be
* sent the next time the button is pressed.
*/
buttonPressed = false;
}
/* Check to see if there is a transmission in progress, if there isn't, then
* we can see about performing an echo response to data received.
*/
if( USBUSARTIsTxTrfReady() == true)
{
uint8_t numBytesRead;
numBytesRead = getsUSBUSART(readBuffer, sizeof(readBuffer));
if (numBytesRead > 0) {
switch(readBuffer[0]) {
case 0x10:
{
unsigned char size = readBuffer[1];
debug_flag2 = !debug_flag2;
PORTCbits.RC1 = debug_flag2;
writeBuffer[0] = 0x90;
writeBuffer[1] = 4;
writeBuffer[2] = numBytesRead;
writeBuffer[3] = readBuffer[1];
writeBuffer[4] = readBuffer[2];
writeBuffer[5] = readBuffer[3];
writeBuffer[1] = 4+size;
for (unsigned char i = 0; i<size; i++) {
writeBuffer[i+6] = readBuffer[4 + i];
}
if (WaitToReadySerial())
putUSBUSART(writeBuffer, writeBuffer[1]+2);
WaitToReadySerial();
}
{
unsigned char size = readBuffer[1];
i2c_start(0x50, 0);
// address in big-endian format
i2c_send(readBuffer[3]); // address MSB
i2c_send(readBuffer[2]); // address LSB
for (unsigned char i = 0; i<size; i++) {
i2c_send(readBuffer[4 + i]);
}
i2c_stop();
__delay_ms(10);
}
break;
case 0x11:
{
unsigned char size = readBuffer[1];
unsigned char data;
unsigned char i;
i2c_start(0x50, 0);
// address in big-endian format
i2c_send(readBuffer[3]); // address MSB
i2c_send(readBuffer[2]); // address LSB
i2c_start(0x50, 1);
for (i=0; i<size-1; i++) {
writeBuffer[i+2] = i2c_receive(ACK);
}
writeBuffer[i+2] = i2c_receive(NOACK);
i2c_stop();
__delay_ms(10);
writeBuffer[0] = 0x12;
writeBuffer[1] = size;
putUSBUSART(writeBuffer, writeBuffer[1]+2);
}
break;
}
}
//if (debug_flag) {
// debug_flag = 0;
// writeBuffer[0] = 9;
// writeBuffer[1] = 1;
// writeBuffer[2] = debug_data;
// putUSBUSART(writeBuffer, writeBuffer[1]+2);
//}
}
CDCTxService();
}
void cdc_write_ok(void) {
putrsUSBUSART(msg_ok);
}
void cdc_print_help(void)
{
putrsUSBUSART( msg_help );
}
void cdc_write_log(void) {
putrsUSBUSART(msg_log);
}
void cdc_write_refat(void) {
putrsUSBUSART(msg_refat);
}
void cdc_eol(void) {
putrsUSBUSART(msg_eol);
}
