/** This command should append characters to
* the command array until a newline is
* received. This functionality is not
* implemented yet. */
void console_wait_for_newline(void) {
while(1) {
if(bCDCDataReceived_event == TRUE) {
if(command_len >= MAX_STR_LENGTH) {
command_len = 0;
}
command_len += cdcReceiveDataInBuffer((BYTE*)(command + command_len),
MAX_STR_LENGTH - command_len,
CDC0_INTFNUM);
// Echo the command
DEBUG("%s", command);
bCDCDataReceived_event = FALSE;
return;
}
}
}
void usb_receive_string(void) {
uint8_t msg_len = 0;
char msg[MAX_STR_LENGTH];
//Get the next piece of the string
msg_len = cdcReceiveDataInBuffer((BYTE*)msg,
MAX_STR_LENGTH - 1,
CDC0_INTFNUM);
msg[msg_len] = 0;
bCDCDataReceived_event = FALSE;
DEBUG("USB l=%d: %s\r\n", msg_len, msg);
if(ISR_union.ISR_int){
DEBUG("ISR: 0x%x\r\n", ISR_union.ISR_int);
ISR_union.ISR_int = 0;
}
if(new_adc){
DEBUG("t=0x%04x, iv=0x%04x\r\n", last_conv, last_adc_iv);
new_adc = 0;
}
if(msg[0] == 'p'){
DEBUG("Transition count: %d\r\n", PPD_count);
} else if(msg[0] == 'l'){
if(!PPD_new){
DEBUG("(old) ");
} else {
PPD_new = 0;
}
float dutyF = 100.0f * PPD_last_10_duty;
int dutyI = (int)dutyF;
DEBUG("avg duty %%:%d.%d\r\n", dutyI,
(int)(10.0f*(dutyF - dutyI)));
/* DEBUG("tot:%lu O:%u", */
/* PPD_tot_ticks, PPD_ta0_overflow_counter); */
/* DEBUG(" down:%lu\r\n", */
/* PPD_tot_down_ticks) */
} else if(msg[0] == 'a'){
if(am2302_state.phase == 0){
DEBUG("start am2302 transfer\r\n");
am2302Start();
} else {
DEBUG("am2302 busy: %d\r\n", am2302_state.phase);
}
}
}
/**
* Renvoie une trame qui finit par "\r" !
* FrameBuffer : tableau pour recevoir les byte. De taille this->bufferSize !
* Revoie true si l'on a une trame disponible
*/
bool iUSB::getFullFrame(char* FrameBuffer)
{
//Tester si l'on a recu qqch
if (*this->dataReceived)
{
char pieceOfString[MAX_BUFFERSIZE] = ""; //Holds the new addition to the string
//Add bytes in USB buffer to theCommand
cdcReceiveDataInBuffer((BYTE*) pieceOfString, this->bufferSize,
CDC0_INTFNUM); //Get the next piece of the string
if ((MAX_BUFFERSIZE - strlen(this->usbSerialBuffer))
> strlen(pieceOfString))
{
strcat(this->usbSerialBuffer, pieceOfString);
}
else
{
this->clearSerialBuffer();
}
// Test \r
if (retInString(this->usbSerialBuffer))
{
strcpy(FrameBuffer, this->usbSerialBuffer);
this->clearSerialBuffer();
*(this->dataReceived) = FALSE;
return true;
}
else
{
*(this->dataReceived) = FALSE;
return false;
}
}
else
{
return false;
}
}
/*
* ======== main ========
*/
VOID main (VOID)
{
WDTCTL = WDTPW + WDTHOLD; //Stop watchdog timer
Init_Ports(); //Init ports (do first ports because clocks do change ports)
SetVCore(3);
Init_Clock(); //Init clocks
USB_init(); //Init USB
Init_TimerA1();
//Enable various USB event handling routines
USB_setEnabledEvents(
kUSB_VbusOnEvent + kUSB_VbusOffEvent + kUSB_receiveCompletedEvent
+ kUSB_dataReceivedEvent + kUSB_UsbSuspendEvent + kUSB_UsbResumeEvent +
kUSB_UsbResetEvent);
//See if we're already attached physically to USB, and if so, connect to it
//Normally applications don't invoke the event handlers, but this is an exception.
if (USB_connectionInfo() & kUSB_vbusPresent){
USB_handleVbusOnEvent();
}
__enable_interrupt(); //Enable interrupts globally
while (1)
{
BYTE i;
//Check the USB state and directly main loop accordingly
switch (USB_connectionState())
{
case ST_USB_DISCONNECTED:
__bis_SR_register(LPM3_bits + GIE); //Enter LPM3 w/ interrupts enabled
_NOP(); //For Debugger
break;
case ST_USB_CONNECTED_NO_ENUM:
break;
case ST_ENUM_ACTIVE:
__bis_SR_register(LPM0_bits + GIE); //Enter LPM0 (can't do LPM3 when active)
_NOP(); //For Debugger
//Exit LPM on USB receive and perform a receive
//operation
if (bCDCDataReceived_event){ //Some data is in the buffer; begin receiving a
//command
char pieceOfString[MAX_STR_LENGTH] = ""; //Holds the new addition to the string
char outString[MAX_STR_LENGTH] = ""; //Holds the outgoing string
//Add bytes in USB buffer to theCommand
cdcReceiveDataInBuffer((BYTE*)pieceOfString,
MAX_STR_LENGTH,
CDC0_INTFNUM); //Get the next piece of the string
strcat(wholeString,pieceOfString);
cdcSendDataInBackground((BYTE*)pieceOfString,
strlen(pieceOfString),CDC0_INTFNUM,0); //Echoes back the characters received (needed
//for Hyperterm)
if (retInString(wholeString)){ //Has the user pressed return yet?
if (!(strcmp(wholeString, "LED ON"))){ //Compare to string #1, and respond
TA1CTL &= ~MC_1; //Turn off Timer
P1OUT |= BIT0; //Turn on LED P1.0
strcpy(outString,"\r\nLED is ON\r\n\r\n"); //Prepare the outgoing string
cdcSendDataInBackground((BYTE*)outString,
strlen(outString),CDC0_INTFNUM,0); //Send the response over USB
} else if (!(strcmp(wholeString, "LED OFF"))){ //Compare to string #2, and respond
TA1CTL &= ~MC_1; //Turn off Timer
P1OUT &= ~BIT0; //Turn off LED P1.0
strcpy(outString,"\r\nLED is OFF\r\n\r\n"); //Prepare the outgoing string
cdcSendDataInBackground((BYTE*)outString,
strlen(outString),CDC0_INTFNUM,0); //Send the response over USB
} else if (!(strcmp(wholeString,
"LED TOGGLE - SLOW"))){ //Compare to string #3, and respond
TA1CTL &= ~MC_1; //Turn off Timer
TA1CCR0 = SlowToggle_Period; //Set Timer Period for slow LED toggle
TA1CTL |= MC_1; //Start Timer
strcpy(outString,
"\r\nLED is toggling slowly\r\n\r\n"); //Prepare the outgoing string
cdcSendDataInBackground((BYTE*)outString,
strlen(outString),CDC0_INTFNUM,0); //Send the response over USB
} else if (!(strcmp(wholeString,
"LED TOGGLE - FAST"))){ //Compare to string #4, and respond
TA1CTL &= ~MC_1; //Turn off Timer
TA1CCR0 = FastToggle_Period; //Set Timer Period for fast LED toggle
TA1CTL |= MC_1;
strcpy(outString,"\r\nLED is toggling fast\r\n\r\n"); //Prepare the outgoing string
cdcSendDataInBackground((BYTE*)outString,
strlen(outString),CDC0_INTFNUM,0); //Send the response over USB
} else { //Handle other
strcpy(outString,"\r\nNo such command!\r\n\r\n"); //Prepare the outgoing string
cdcSendDataInBackground((BYTE*)outString,
strlen(outString),CDC0_INTFNUM,0); //Send the response over USB
}
for (i = 0; i < MAX_STR_LENGTH; i++){ //Clear the string in preparation for the next
//one
wholeString[i] = 0x00;
}
}
bCDCDataReceived_event = FALSE;
}
break;
case ST_ENUM_SUSPENDED:
P1OUT &= ~BIT0; //When suspended, turn off LED
__bis_SR_register(LPM3_bits + GIE); //Enter LPM3 w/ interrupts
_NOP();
break;
case ST_ENUM_IN_PROGRESS:
break;
case ST_NOENUM_SUSPENDED:
P1OUT &= ~BIT0;
__bis_SR_register(LPM3_bits + GIE);
_NOP();
break;
case ST_ERROR:
_NOP();
break;
default:;
}
} //while(1)
} //main()
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop the watchdog
__enable_interrupt(); // Enable general interrupts
Board_init(); // Configure's the F5529 EXP board's I/Os
// Initialize power/clocks for use with USB
SetVCore(3); // The USB module requires that VCore be set to highest setting, independent of MCLK freq
ClockUSB();
disk_initialize(0); // SD-cards must go through a setup sequence after powerup. This FatFs call does this.
USB_init(); // Initializes the USB API, and prepares the USB module to detect USB insertion/removal events
USB_setEnabledEvents(kUSB_allUsbEvents); // Enable all USB events
// The data interchange buffer (used when handling SCSI READ/WRITE) is declared by the application, and
// registered with the API using this function. This allows it to be assigned dynamically, giving
// the application more control over memory management.
USBMSC_registerBufInfo(&RW_dataBuf[0], NULL, sizeof(RW_dataBuf));
// The API maintains an instance of the USBMSC_RWbuf_Info structure. If double-buffering were used, it would
// maintain one for both the X and Y side. (This version of the API only supports single-buffering,
// so only one structure is maintained.) This is a shared resource between the API and application; the
// application must request the pointers.
RWbuf_info = USBMSC_fetchInfoStruct();
// USBMSC_updateMediaInfo() must be called prior to USB connection. We check if the card is present, and if so, pull its size
// and bytes per block.
// LUN0
mediaInfo.mediaPresent = 0x01; // The medium is present, because internal flash is non-removable.
mediaInfo.mediaChanged = 0x00; // It can't change, because it's in internal memory, which is always present.
mediaInfo.writeProtected = 0x00; // It's not write-protected
mediaInfo.lastBlockLba = 774; // 774 blocks in the volume. (This number is also found twice in the volume itself; see mscFseData.c. They should match.)
mediaInfo.bytesPerBlock = BYTES_PER_BLOCK; // 512 bytes per block. (This number is also found in the volume itself; see mscFseData.c. They should match.)
USBMSC_updateMediaInfo(0, &mediaInfo);
// LUN1
if(detectCard())
mediaInfo.mediaPresent = kUSBMSC_MEDIA_PRESENT;
else mediaInfo.mediaPresent = kUSBMSC_MEDIA_NOT_PRESENT;
mediaInfo.mediaChanged = 0x00;
mediaInfo.writeProtected = 0x00;
disk_ioctl(0,GET_SECTOR_COUNT,&mediaInfo.lastBlockLba); // Returns the number of blocks (sectors) in the media.
mediaInfo.bytesPerBlock = BYTES_PER_BLOCK; // Block size will always be 512
USBMSC_updateMediaInfo(1, &mediaInfo);
// At compile-time for this demo, there will be one file on the volume. The root directory and data cluster
// for this file need to be initialized.
//flashWrite_LBA(Root_Dir, (BYTE*)Root_Dir_init);
//flashWrite_LBA(Data559, (BYTE*)Data559_init);
// Configure Timer_A0 to prompt detection of the SD card every second
TA0CCTL0 = CCIE; // Enable interrupt
TA0CCR0 = 32768; // Clock will be 32kHz, so we set the int to occur when it counts to 32768
TA0CTL = TASSEL_1 + MC_1 + TACLR; // ACLK = 32kHz, up mode, clear TAR... go!
// If USB is already connected when the program starts up, then there won't be a USB_handleVbusOnEvent().
// So we need to check for it, and manually connect if the host is already present.
if (USB_connectionInfo() & kUSB_vbusPresent)
{
if (USB_enable() == kUSB_succeed)
{
USB_reset();
USB_connect();
}
}
while(1)
{
BYTE ReceiveError=0, SendError=0;
WORD count;
switch(USB_connectionState())
{
case ST_USB_DISCONNECTED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 until VBUS-on event
// Check if the reason we woke was a button press; and if so, log a new piece of data.
if(fS1ButtonEvent)
{
// Build string
char str[14] = "Data entry #0\n";
str[12] = logCnt++; // Number the entries 0 through....?
memcpy(RW_dataBuf, Data559, BYTES_PER_BLOCK); // Copy data block 559 from flash to RAM buffer
memcpy(&RW_dataBuf[DataCnt], str, sizeof(str)); // Write the new entry to the RAM buffer
flashWrite_LBA((PBYTE)Data559, RW_dataBuf); // Copy it back to flash
DataCnt += sizeof(str); // Increment the index past the new entry
if((DataCnt + sizeof(str)>= BYTES_PER_BLOCK)) // Roll index back to 0, if no more room in the block
DataCnt = 0;
fS1ButtonEvent = 0;
}
break;
case ST_USB_CONNECTED_NO_ENUM:
break;
case ST_ENUM_ACTIVE:
// Call USBMSC_poll() to initiate handling of any received SCSI commands. Disable interrupts
// during this function, to avoid conflicts arising from SCSI commands being received from the host
// AFTER decision to enter LPM is made, but BEFORE it's actually entered (in other words, avoid
// sleeping accidentally).
__disable_interrupt();
if((USBMSC_poll() == kUSBMSC_okToSleep) && (!bDetectCard))
{
__bis_SR_register(LPM0_bits + GIE); // Enable interrupts atomically with LPM0 entry
}
__enable_interrupt();
// If the API needs the application to process a buffer, it will keep the CPU awake by returning kUSBMSC_processBuffer
// from USBMSC_poll(). The application should then check the 'operation' field of all defined USBMSC_RWbuf_Info
// structure instances. If any of them is non-null, then an operation needs to be processed. A value of
// kUSBMSC_READ indicates the API is waiting for the application to fetch data from the storage volume, in response
// to a SCSI READ command from the USB host. After the application does this, it must indicate whether the
// operation succeeded, and then close the buffer operation by calling USBMSC_bufferProcessed().
while(RWbuf_info->operation == kUSBMSC_READ)
{
switch(RWbuf_info->lun)
{
case 0:
RWbuf_info->returnCode = Read_LBA(RWbuf_info->lba, RWbuf_info->bufferAddr, RWbuf_info->lbCount); // Fetch a block from the medium, using file system emulation
USBMSC_bufferProcessed(); // Close the buffer operation
break;
case 1:
read_LUN1();
break;
}
}
// Everything in this section is analogous to READs. Reference the comments above.
while(RWbuf_info->operation == kUSBMSC_WRITE)
{
switch(RWbuf_info->lun)
{
case 0:
RWbuf_info->returnCode = Write_LBA(RWbuf_info->lba, RWbuf_info->bufferAddr, RWbuf_info->lbCount); // Write the block to the medium, using file system emulation
USBMSC_bufferProcessed(); // Close the buffer operation
break;
case 1:
write_LUN1();
break;
}
}
// Every second, the Timer_A ISR sets this flag. The checking can't be done from within the timer ISR, because the
// checking enables interrupts, and this is not a recommended practice due to the risk of nested interrupts.
if(bDetectCard)
{
checkInsertionRemoval();
bDetectCard = 0x00; // Clear the flag, until the next timer ISR
}
if(bHID_DataReceived_event) //Message is received from HID application
{
bHID_DataReceived_event = FALSE; // Clear flag early -- just in case execution breaks below because of an error
count = hidReceiveDataInBuffer((BYTE*)dataBuffer,BUFFER_SIZE,HID0_INTFNUM);
strncat(wholeString," \r\nRx->",7);
strncat(wholeString,(char*)dataBuffer,count);
strncat(wholeString," \r\n ",4);
if(cdcSendDataInBackground((BYTE*)wholeString,strlen(wholeString),CDC0_INTFNUM,1)) // Send message to other CDC App
{
SendError = 0x01;
break;
}
memset(wholeString,0,MAX_STR_LENGTH); // Clear wholeString
}
if(bCDC_DataReceived_event) //Message is received from CDC application
{
bCDC_DataReceived_event = FALSE; // Clear flag early -- just in case execution breaks below because of an error
cdcReceiveDataInBuffer((BYTE*)wholeString,MAX_STR_LENGTH,CDC0_INTFNUM);
ASCII(wholeString);
if(hidSendDataInBackground((BYTE*)wholeString,strlen(wholeString),HID0_INTFNUM,1)) // Send message to HID App
{
SendError = 0x01; // Something went wrong -- exit
break;
}
memset(wholeString,0,MAX_STR_LENGTH); // Clear wholeString
}
break;
case ST_ENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3, until a resume or VBUS-off event
break;
case ST_ENUM_IN_PROGRESS:
break;
case ST_ERROR:
break;
default:;
}
if(ReceiveError || SendError)
{
//TO DO: User can place code here to handle error
}
}
}
