int main(void)
{
clock_prescale_set(clock_div_1);
SYSTEM_init();
TIMER_init();
USB_init();
/* initialize with 65 keys */
LAYOUT_init(65);
LAYOUT_set((struct layout*)LAYOUT_BEGIN);
LAYOUT_set_callback(&HID_set_scancode_state);
MATRIX_init(5, rows, 14, cols, (const uint8_t*)matrix, &on_key_press);
HID_init();
HID_commit_state();
LED_init();
SYSTEM_subscribe(USB_SOF, ANY, MAIN_handle_sof);
int sleep_tmr = TIMER_add(32, true);
SYSTEM_subscribe(TIMER, sleep_tmr, MAIN_sleep_timer_handler);
SYSTEM_add_task(main_task, 0);
SYSTEM_add_task(RAWHID_PROTOCOL_task, 0);
SYSTEM_main_loop();
}
void USB_Task() {
// FLASH_Run_Test();
USB_init();
while (1) {
msc_disk_task();
cdc_vcom_task();
}
}
int main(void)
{
clock_prescale_set(clock_div_1);
for (int i = 0; i < NUM_IO; ++i) {
IO_config(i, INPUT);
IO_set(i, true);
}
PORTB |= _BV(PB0);
DDRB |= _BV(PB2) | _BV(PB1) | _BV(PB0); // MOSI, SCK, MEMCS
DDRC |= _BV(PC7) | _BV(PC6); // LATCH, BUFEN
DDRB &= ~_BV(PB3); // MISO
PORTB &= ~_BV(PB3);
USB_init();
while (USB_get_configuration() == 0)
;
HID_commit_state();
int size;
DATAFLASH_read_page(1, sizeof(size), &size);
if (size != -1) {
uint8_t *layout = malloc(size);
DATAFLASH_read_page(2, (uint16_t)size, layout);
RAWHID_send(layout);
LAYOUT_set(layout);
}
DATAFLASH_read_page(0, sizeof(matrix), matrix);
TCCR0A = 0x00;
TCCR0B = 0x03; /* clk_io / 64 */
TIMSK0 = _BV(TOIE0);
while(1) {
RAWHID_PROTOCOL_task();
}
while (1)
;
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void) {
LEDS_init();
TIME_init();
US_init();
MOTORS_init();
USB_init();
//int x = 500;
do {
//TIME_delay(1000);
for (int i=0; i < 10000000; i++) {}
LEDS_live(!LEDS_live_state());
/*if (US_distance > 30) {
MOTORS_forward(1000);
}
else {
MOTORS_right(100);
}*/
/*PROTOCOL_data data = {0,0,0,0,0};//PROTOCOL_emptyData;
data.id = 1;
data.cmd = 2;
data.type = 0;
data.bData = 3;
USB_write(data);*/
/*LEDS_live(LEDS_On);
TIME_delay(US_distance*10);
LEDS_live(LEDS_Off);
TIME_delay(US_distance*10);*/
/*if (x > 1000) x = 600;
TIME_delay(1000);
MOTORS_forward(x);
x+= 10;*/
USB_power(1);
//TIME_delay(100);
for (int i=0; i < 10000000; i++) {}
USB_power(0);
} while (1);
}
void usb_printf_init(void) {
SetVCore(3);
init_clock();
//Init USB
USB_init();
//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_printf_state = USB_ENABLED;
USB_handleVbusOnEvent();
}
}
//----------------------------------------------------------------------------
VOID ConfigUSB(VOID)
{
USB_init(); // Init USB
// 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)
{
if (USB_enable() == kUSB_succeed)
{
USB_reset();
USB_connect();
}
}
}
int main(){
uint32_t Old_timer = 0;
// RCC clocking: 8MHz oscillator -> 72MHz system
rcc_clock_setup_in_hse_8mhz_out_72mhz();
GPIO_init();
usb_disconnect(); // turn off USB while initializing all
steppers_init();
// USB
usbd_dev = USB_init();
// SysTick is a system timer with 1ms period
SysTick_init();
// wait a little and then turn on USB pullup
// for (i = 0; i < 0x800000; i++)
// __asm__("nop");
usb_connect(); // turn on USB
while(1){
usbd_poll(usbd_dev);
if(usbdatalen){ // there's something in USB buffer
usbdatalen = parce_incoming_buf(usbdatabuf, usbdatalen);
}
//check_and_parce_UART(USART1); // also check data in UART buffers
if(Timer - Old_timer > 999){ // one-second cycle
Old_timer += 1000;
}else if(Timer < Old_timer){ // Timer overflow
Old_timer = 0;
}
}
}
int main(int argc, char** argv)
{
pspDebugScreenInit();
pspDebugScreenEnableBackColor(0);
SetupCallbacks();
char* scriptFilename = "script.lua";
lua_State *L;
L = lua_open();
luaL_openlibs(L);
Aalib_init(L);
Color_init(L);
g2D_init(L);
intraFont_init(L);
Ctrl_init(L);
Power_init(L);
Time_init(L);
Timer_init(L);
Savedata_init(L);
sceIo_init(L);
Utility_init(L);
USB_init(L);
Xtream_init(L);
SceCtrlData keys, oldkeys;
int status = 0, i;
while (1)
{
status = luaL_loadfile(L, scriptFilename);
if (status == 0)
status = lua_pcall(L, 0, LUA_MULTRET, 0);
if (status != 0) //If an error has occured
{
sceCtrlReadBufferPositive(&oldkeys, 1);
pspDebugScreenInit();
pspDebugScreenEnableBackColor(1);
while (1)
{
sceCtrlReadBufferPositive(&keys, 1);
pspDebugScreenSetXY(0,0);
printf("Lua Error:\n%s\n", lua_tostring(L, -1));
printf("Press Start to reset.\n");
if ((keys.Buttons &PSP_CTRL_START) && !(oldkeys.Buttons &PSP_CTRL_START))
break;
oldkeys = keys;
for (i = 0; i < 10; i++)
sceDisplayWaitVblankStart();
}
pspDebugScreenInit();
pspDebugScreenEnableBackColor(0);
lua_pop(L, 1);
}
}
lua_close(L);
intraFontShutdown();
g2dTerm();
cleanUSBDrivers();
sceKernelExitGame();
return 0;
}
/*
* ======== 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
}
}
}
/**
* Macro d'initialisation de l'USB
*/
void iUSB::initUSB()
{
USB_init();
}
/*----------------------------------------------------------------------------+
| Main Routine |
+----------------------------------------------------------------------------*/
VOID main(VOID)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
Init_StartUp();
USB_init();
USB_setEnabledEvents(kUSB_VbusOnEvent+kUSB_VbusOffEvent+kUSB_receiveCompletedEvent
+kUSB_dataReceivedEvent+kUSB_UsbSuspendEvent+kUSB_UsbResumeEvent+kUSB_UsbResetEvent);
// Check if we're already physically attached to USB, and if so, connect to it
// This is the same function that gets called automatically when VBUS gets attached.
if (USB_connectionInfo() & kUSB_vbusPresent)
USB_handleVbusOnEvent();
//PWRVBUSonHandler();
while(1)
{
switch(USB_connectionState())
{
case ST_USB_DISCONNECTED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
break;
case ST_USB_CONNECTED_NO_ENUM:
break;
case ST_ENUM_ACTIVE:
if(!bCommandBeingProcessed) // If no command is being processed, then make sure there's a rcv operation
{ // open to receive the start of the "packet"
if(!(USBCDC_intfStatus(0,&x,&y) & kUSBCDC_waitingForReceive)) // Only open it if we haven't already done so
if(USBCDC_receiveData(buffer,1,0) == kUSBCDC_busNotAvailable) // Start a receive operation for a single byte -- the "size" byte of the "packet"
{
USBCDC_abortReceive(&x,0); // Abort receive
break; // If bus is no longer available, escape out of the loop
}
}
__bis_SR_register(LPM0_bits + GIE); // Wait in LPM0 until a receive operation has completed
//__bis_SR_register(LPM0_bits + GIE);
if(bDataReceiveCompleted_event)
{
bDataReceiveCompleted_event = FALSE;
if(!bCommandBeingProcessed) // This means that the incoming byte is the start of the "packet" -- the "size" byte
{
if ((buffer[0]>=0x31) && (buffer[0]<= 0x39))
{
size = buffer[0]-0x30; // It's in ASCII, so convert it to a number
if(USBCDC_receiveData(buffer,size,0) == kUSBCDC_busNotAvailable) // And then open a rcv operation for that size
{
USBCDC_abortReceive(&x,0); // Abort receive
break; // If bus is no longer available, escape out of the loop
}
bCommandBeingProcessed = TRUE; // Now we're waiting for the "data" part of the "packet"
}
else
{
strcpy(outString,"\r\nEnter a valid number between 1 and 9\r\n\r\n"); // Prepare the outgoing string
if(cdcSendDataInBackground((BYTE*)outString,strlen(outString),0,0)) // Send the response over USB
{
USBCDC_abortSend(&x,0); // Operation may still be open; cancel it
break; // If the send fails, escape the main loop
}
bCommandBeingProcessed = FALSE; // Now we're back to waiting for the "size" byte
}
}
else // This means that the incoming data is the "data" part of the "packet"
{
strcpy(outString,"\r\nI received your packet with size of "); // Prepare the outgoing string
buffer[bufferLen-1]= 0;
c[0] = (char)(size+'0');
c[1] = 0;
outString[64] = 0; // Convert the size back to ASCII
strcat(outString,c);
strcat(outString," bytes.\r\n\r\n");
if(cdcSendDataInBackground((BYTE*)outString,strlen(outString),0,0)) // Send the response over USB
{
USBCDC_abortSend(&x,0); // Operation may still be open; cancel it
break; // If the send fails, escape the main loop
}
bCommandBeingProcessed = FALSE; // Now we're back to waiting for the "size" byte
}
}
break;
case ST_ENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
break;
case ST_ENUM_IN_PROGRESS:
break;
case ST_NOENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE);
_NOP();
break;
case ST_ERROR:
_NOP();
break;
default:;
}
} // while(1)
} //main()
/*
* usb_test()
* USB Bulk transfer test. Device is detected as an eZDSP5535 when
* connected to PC while test is running. Bulk transfers can be
* made using USB_55xx program.
*
*/
CSL_Status usb_test(void)
{
CSL_IRQ_Config config;
CSL_Status result;
Uint16 eventMask;
result = CSL_USB_TEST_FAILED;
usbConfig.opMode = CSL_USB_OPMODE_POLLED;
usbConfig.devNum = CSL_USB0;
usbConfig.maxCurrent = CSL_USB_MAX_CURRENT;
usbConfig.appSuspendCallBack = (CSL_USB_APP_CALLBACK)CSL_suspendCallBack;
usbConfig.appWakeupCallBack = (CSL_USB_APP_CALLBACK)CSL_selfWakeupCallBack;
usbConfig.startTransferCallback = CSL_startTransferCallback;
usbConfig.completeTransferCallback = CSL_completeTransferCallback;
hEpObjArray[0] = &usbCtrlOutEpObj;
hEpObjArray[1] = &usbCtrlInEpObj;
hEpObjArray[2] = &usbBulkOutEpObj;
hEpObjArray[3] = &usbBulkInEpObj;
/* Set the interrupt vector start address */
IRQ_setVecs((Uint32)(&VECSTART));
/* Plug the USB Isr into vector table */
config.funcAddr = &usb_isr;
IRQ_plug(USB_EVENT, config.funcAddr);
/* Enable USB Interrupts */
IRQ_enable(USB_EVENT);
/* Enable CPU Interrupts */
IRQ_globalEnable();
/* Initialize the USB module */
status = USB_init(&usbConfig);
if(status != CSL_SOK)
{
printf("USB init failed\n");
return(result);
}
/* Reset the USB device */
status = USB_resetDev(CSL_USB0);
if(status != CSL_SOK)
{
printf("USB Reset failed\n");
return(result);
}
/* Initialize the Control Endpoint OUT 0 */
eventMask = (CSL_USB_EVENT_RESET | CSL_USB_EVENT_SETUP |
CSL_USB_EVENT_SUSPEND | CSL_USB_EVENT_RESUME |
CSL_USB_EVENT_RESET | CSL_USB_EVENT_EOT);
status = USB_initEndptObj(CSL_USB0, hEpObjArray[0],
CSL_USB_OUT_EP0,CSL_USB_CTRL,
CSL_USB_EP0_PACKET_SIZE, eventMask, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Initialize the Control Endpoint IN 0 */
status = USB_initEndptObj(CSL_USB0, hEpObjArray[1], CSL_USB_IN_EP0,
CSL_USB_CTRL, CSL_USB_EP0_PACKET_SIZE,
CSL_USB_EVENT_EOT, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Initialize the Bulk Endpoint IN 1 */
eventMask = (CSL_USB_EVENT_RESET | CSL_USB_EVENT_EOT);
status = USB_initEndptObj(CSL_USB0, hEpObjArray[2], CSL_USB_IN_EP1,
CSL_USB_BULK, CSL_USB_EP1_PACKET_SIZE_FS,
eventMask, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Initialize the Bulk Endpoint OUT 2 */
status = USB_initEndptObj(CSL_USB0, hEpObjArray[3], CSL_USB_OUT_EP1,
CSL_USB_BULK, CSL_USB_EP1_PACKET_SIZE_FS,
CSL_USB_EVENT_EOT, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Set the parameters */
status = USB_setParams(CSL_USB0, hEpObjArray, FALSE);
if(status != CSL_SOK)
{
printf("USB Set params failed\n");
return(result);
}
/* Connect the USB device */
status = USB_connectDev(CSL_USB0);
if(status != CSL_SOK)
{
printf("USB Connect failed\n");
return(result);
}
deviceDescPtr = (Uint16 *)deviceDesc;
cfgDescPtr = (Uint16 *)cfgDesc;
strDescPtr = (Uint16 *)strDesc;
dataReadBuffPtr = (Uint16 *)dataReadBuff;
dataWriteBuffPtr = (Uint16 *)dataWriteBuff;
while(stopRunning != TRUE);
result = CSL_USB_TEST_PASSED;
return(result);
}
/**
* \brief Audio Class intialization function
*
* \param None
*
* \return None
*/
void CSL_acTest(void)
{
I2sInitPrms i2sInitPrms;
CSL_UsbConfig usbConfig;
PSP_Result result;
Int16 status;
HWI_Attrs attrs;
LOG_printf(&trace, "USB ISO FULL SPEED MODE\n");
/* Initialize audio module */
result = AIC3254_init();
if(result != 0)
{
LOG_printf(&trace, "ERROR: Unable to configure audio codec");
}
else
{
#if !defined(SAMPLE_BY_SAMPLE_PB) || !defined(SAMPLE_BY_SAMPLE_REC)
DMA_HwInit();
DMA_DrvInit();
#endif
/* Initialize I2S and associated DMA channels for Playback and Record */
i2sInitPrms.enablePlayback = TRUE;
i2sInitPrms.enableStereoPb = TRUE;
#ifdef SAMPLE_BY_SAMPLE_PB
i2sInitPrms.sampleBySamplePb = TRUE;
#else /* Configuration untested since ASRC only works with I2S in sample-by-sample mode */
i2sInitPrms.sampleBySamplePb = FALSE;
i2sInitPrms.enableDmaPingPongPb = FALSE;
i2sInitPrms.pingI2sTxLeftBuf = ping_i2sTxLeftBuf;
i2sInitPrms.pongI2sTxLeftBuf = pong_i2sTxLeftBuf;
i2sInitPrms.pingI2sTxRightBuf = ping_i2sTxRightBuf;
i2sInitPrms.pongI2sTxRightBuf = pong_i2sTxRightBuf;
i2sInitPrms.zeroBuf = ZeroBuf;
#endif
i2sInitPrms.i2sPb = PSP_I2S_TX_INST_ID;
i2sInitPrms.enableRecord = TRUE;
i2sInitPrms.enableStereoRec = FALSE;
#ifdef SAMPLE_BY_SAMPLE_REC
i2sInitPrms.sampleBySampleRec = TRUE;
#else
i2sInitPrms.sampleBySampleRec = FALSE;
i2sInitPrms.enableDmaPingPongRec = TRUE;
i2sInitPrms.pingI2sRxLeftBuf = (Int16 *)ping_pong_i2sRxLeftBuf;
i2sInitPrms.pongI2sRxLeftBuf = NULL;
i2sInitPrms.pingI2sRxRightBuf = (Int16 *)ping_pong_i2sRxRightBuf;
i2sInitPrms.pongI2sRxRightBuf = NULL;
#endif
i2sInitPrms.i2sRec = PSP_I2S_RX_INST_ID;
status = i2sInit(&i2sInitPrms);
if (status != I2SSAMPLE_SOK)
{
LOG_printf(&trace, "ERROR: Unable to initialize I2S");
}
#ifdef C5535_EZDSP_DEMO
// initialize the OLED display
oled_init();
#endif
/* Initialising the Pointer to the Audio Class Handle to the Buffer Allocated */
AC_AppHandle.pAcObj = &ACAppBuffer[0];
usbConfig.devNum = CSL_USB0;
usbConfig.opMode = CSL_USB_OPMODE_POLLED;
#ifdef APP_USB_SELF_POWERED
usbConfig.selfPowered = TRUE;
#else
usbConfig.selfPowered = FALSE;
#endif
usbConfig.maxCurrent = APP_USB_MAX_CURRENT;
usbConfig.appSuspendCallBack = (CSL_USB_APP_CALLBACK)CSL_suspendCallBack;
usbConfig.appWakeupCallBack = (CSL_USB_APP_CALLBACK)CSL_selfWakeupCallBack;
usbConfig.startTransferCallback = StartTransfer;
usbConfig.completeTransferCallback = CompleteTransfer;
USB_init(&usbConfig);
USB_setFullSpeedMode(0x40); /* parameter is EP0 data size in bytes */
USB_resetDev(CSL_USB0);
/* Calling init routine */
/* Giving all the table hanldes and the buffers to the Audio Class module */
AC_AppHandle.strDescrApp = (char **)&string_descriptor[0];
AC_AppHandle.lbaBufferPbApp = &lbaBufferPbApp[0];
AC_AppHandle.lbaBufferRecApp = &lbaBufferRecApp[0];
AC_AppHandle.lbaBufferHidReportApp = &lbaBufferHidReportApp[0];
AC_AppHandle.acReqTableApp = USB_ReqTable;
AC_AppHandle.pId = pId;
AC_AppHandle.vId = vId;
#ifndef ENABLE_PLAYBACK_TWO_SAMPLE_RATES
#ifdef SAMPLE_RATE_TX_48kHz
LOG_printf(&trace, "PLAYBACK: 48KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = EP_PB_MAXP; // max packet size for 48K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x60; // max packet size for 48K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_48kHz
#ifdef SAMPLE_RATE_TX_44_1kHz
LOG_printf(&trace, "PLAYBACK: 44.1KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = 0xB0; // max packet size for 44.1 stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x58; // max packet size for 44.1 mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_44_1kHz
#ifdef SAMPLE_RATE_TX_32kHz
LOG_printf(&trace, "PLAYBACK: 32KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = 0x80; // max packet size for 32K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x40; // max packet size for 32K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_32kHz
#ifdef SAMPLE_RATE_TX_16kHz
LOG_printf(&trace, "PLAYBACK: 16KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_16kHz
#else /* ENABLE_PLAYBACK_TWO_SAMPLE_RATES */
LOG_printf(&trace, "PLAYBACK: 48KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = EP_PB_MAXP; // max packet size for 48K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x60; // max packet size for 48K mono
#endif // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "PLAYBACK: 16KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
LOG_printf(&trace, "STEREO\n");
#else // ENABLE_STEREO_PLAYBACK
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
LOG_printf(&trace, "MONO\n");
#endif // ENABLE_STEREO_PLAYBACK
#endif /* ENABLE_PLAYBACK_TWO_SAMPLE_RATES */
AC_AppHandle.txPktSize = EP_REC_MAXP; // max packet size for 16K mono
AC_AppHandle.hidTxPktSize = EP_HID_MAXP; // max packet size for HID output report
/* All Function Handlers need to be Initialised */
AC_AppHandle.playAudioApp = appPlayAudio;
AC_AppHandle.recordAudioApp = appRecordAudio;
AC_AppHandle.initPlayAudioApp = appInitPlayAudio;
AC_AppHandle.initRecordAudioApp = appInitRecordAudio;
AC_AppHandle.stopPlayAudioApp = appStopPlayAudio;
AC_AppHandle.stopRecordAudioApp = appStopRecordAudio;
AC_AppHandle.mediaGetPresentStateApp = AppGetMediaStatus;
AC_AppHandle.mediaInitApp = AppMediaInit;
AC_AppHandle.mediaEjectApp = AppMediaEject;
AC_AppHandle.mediaLockUnitApp = AppLockMedia;
AC_AppHandle.getMediaSizeApp = AppGetMediaSize;
AC_AppHandle.getHidReportApp = appGetHidReport;
AC_AppHandle.ctrlHandler = appCtrlFxn;
AC_AppHandle.isoHandler = appIsoFxn;
AC_AppHandle.hidHandler = appHidFxn;
AC_AppHandle.numLun = 2;
/* Initialize End point descriptors */
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)deviceDescriptorB,
CSL_AC_DEVICE_DESCR, sizeof(deviceDescriptorB));
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)deviceQualifierDescr,
CSL_AC_DEVICE_QUAL_DESCR, 10);
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)configDescriptor,
CSL_AC_CONFIG_DESCR, sizeof(configDescriptor));
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)stringLanId,
CSL_AC_STRING_LANGID_DESC, 6);
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)acHidReportDescriptor,
CSL_AC_HID_REPORT_DESC, sizeof(acHidReportDescriptor));
/* Initialize HID */
AC_AppHandle.acHidIfNum = IF_NUM_HID; // HID interface number
AC_AppHandle.acHidReportId = HID_REPORT_ID; // HID report ID
AC_AppHandle.acHidReportLen = HID_REPORT_SIZE_BYTES; // HID report length (bytes)
genHidReport(UI_PUSH_BUTTON_NONE, gHidReport); // init. HID report for Get Report
/* Call Init API */
AC_Open(&AC_AppHandle);
/* Enable CPU USB interrupts */
CSL_FINST(CSL_CPU_REGS->IER1, CPU_IER1_USB, ENABLE);
/* Initialize active sample rate */
initSampleRate(RATE_48_KHZ, &active_sample_rate,
&i2sTxBuffSz);
/* Initialize ASRC */
Init_Sample_Rate_Converter(active_sample_rate);
/* Reset codec output buffer */
reset_codec_output_buffer();
#ifdef ENABLE_RECORD
#ifdef SAMPLE_RATE_RX_48kHz
LOG_printf(&trace, "RECORD: 48KHZ ");
#else
LOG_printf(&trace, "RECORD: 16KHZ ");
#endif // SAMPLE_RATE_RX_48kHz
// start the rx DMAs
DMA_StartTransfer(hDmaRxLeft);
#ifdef ENABLE_STEREO_RECORD
LOG_printf(&trace, "STEREO NOT SUPPORTED - RECORD WILL BE MONO\n");
DMA_StartTransfer(hDmaRxRight);
#else
LOG_printf(&trace, "MONO\n");
#endif
#endif // ENABLE_RECORD
#ifdef STORE_PARAMETERS_TO_SDRAM
initSdram(FALSE, 0x0000);
#endif // STORE_PARAMETERS_TO_SDRAM
#ifdef SAMPLE_BY_SAMPLE_PB
/* SampleBySample, init interrupt */
/* Use with compiler "interrupt" keyword */
//IRQ_plug(I2S_TX_EVENT, i2s_txIsr);
/* Use with dispatcher, no "interrupt" keyword */
attrs.ier0mask = 0xFFFF;
attrs.ier1mask = 0xFFFF;
HWI_dispatchPlug(I2S_TX_EVENT, (Fxn)i2s_txIsr, &attrs);
IRQ_enable(I2S_TX_EVENT); /* SampleBySample, enable IRQ for I2S Tx */
#endif
#if defined(SAMPLE_BY_SAMPLE_REC) && !defined(COMBINE_I2S_TX_RX_ISR)
/* SampleBySample, init interrupt */
/* Use with compiler "interrupt" keyword */
IRQ_plug(I2S_RX_EVENT, i2s_rxIsr);
/* Use with dispatcher, no "interrupt" keyword */
//attrs.ier0mask = 0xFFFF;
//attrs.ier1mask = 0xFFFF;
//HWI_dispatchPlug(I2S_RX_EVENT, (Fxn)i2s_rxIsr, &attrs);
IRQ_enable(I2S_RX_EVENT); /* SampleBySample, enable IRQ for I2S Rx */
#endif
#if defined(SAMPLE_BY_SAMPLE_PB) || defined(SAMPLE_BY_SAMLE_REC)
DDC_I2S_transEnable((DDC_I2SHandle)i2sHandleTx, TRUE); /* SampleBySample, enable I2S transmit and receive */
#endif
#ifndef SAMPLE_BY_SAMPLE_PB
i2sTxStart(); // - moved from appPlayAudio()
#endif
#ifdef C5535_EZDSP_DEMO
// clock gating usused peripherals
ClockGating();
#endif
}
}
void MassStorage(void)
{
buttonsPressed = 0;
SFRIE1 &= ~OFIE;
disk_initialize(0); // Initialize Disk Drive #0
SFRIE1 |= OFIE;
DEBUG("Init clock\r\n");
ClockUSB();
DEBUG("Init USB\r\n");
USB_init(); // Initialize the USB module
P1OUT |= BIT1;
// Enable all USB events
USB_setEnabledEvents(kUSB_allUsbEvents);
// Clal Initialization Function
DEBUG("Init MSC\r\n");
msc_Init();
P1OUT |= BIT2;
// 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();
P1OUT |= BIT3;
}
}
while (1)
{
switch (USB_connectionState())
{
DEBUG("Connection state: %u\r\n", USB_connectionState());
case ST_USB_DISCONNECTED:
//__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 until VBUS-on event
_NOP();
break;
case ST_USB_CONNECTED_NO_ENUM:
break;
case ST_ENUM_ACTIVE:
msc_Loop();
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:;
}
}
DEBUG("Done with MassStorage\r\n");
buttonsPressed = 0;
Board_ledOff(LED_ALL);
USB_disable();
SFRIE1 &= ~OFIE;
Init_FLL_Settle(25000, 762); // Return to normal clock settings
SFRIE1 |= OFIE;
}
/**
* \brief Tests USB interrupt mode operation
*
* \param none
*
* \return Test result
*/
Int16 BoardUSB_init(void)
{
Uint16 eventMask;
Int16 looper;
CSL_UsbConfig usbConfig;
usbConfig.opMode = CSL_USB_OPMODE_POLLED;
usbConfig.devNum = CSL_USB0;
usbConfig.maxCurrent = CSL_USB_MAX_CURRENT;
usbConfig.appSuspendCallBack = (CSL_USB_APP_CALLBACK)NULL;
usbConfig.appWakeupCallBack = (CSL_USB_APP_CALLBACK)NULL;
usbConfig.startTransferCallback = CSL_startTransferCallback;
usbConfig.completeTransferCallback = NULL;
hEpObjArray[0] = &usbCtrlOutEpObj;
hEpObjArray[1] = &usbCtrlInEpObj;
hEpObjArray[2] = &usbBulkOutEpObj;
hEpObjArray[3] = &usbBulkInEpObj;
CSL_CPU_REGS->IER1 |= 0x0010; // enable USB interrupt
/* Initialize the USB module */
status = USB_init(&usbConfig); // never fail
/* Reset the USB device */
status = USB_resetDev(CSL_USB0); // never fail when CSL_USB0
/* Initialize the Control Endpoint OUT 0 */
eventMask = CSL_USB_EVENT_RESET |
CSL_USB_EVENT_SETUP |
CSL_USB_EVENT_SUSPEND |
CSL_USB_EVENT_RESUME |
CSL_USB_EVENT_EOT;
status = USB_initEndptObj(CSL_USB0, hEpObjArray[0], CSL_USB_OUT_EP0,
CSL_USB_CTRL, CSL_USB_EP0_PACKET_SIZE,
eventMask, NULL);
if(status != CSL_SOK) // USB End point init failed
return status;
/* Initialize the Control Endpoint IN 0 */
status = USB_initEndptObj(CSL_USB0, hEpObjArray[1], CSL_USB_IN_EP0,
CSL_USB_CTRL, CSL_USB_EP0_PACKET_SIZE,
CSL_USB_EVENT_EOT, NULL);
if(status != CSL_SOK) // USB End point init failed
return status;
/* Initialize the Bulk Endpoint IN 1 */
eventMask = CSL_USB_EVENT_RESET | CSL_USB_EVENT_EOT;
status = USB_initEndptObj(CSL_USB0, hEpObjArray[2], CSL_USB_IN_EP1,
CSL_USB_BULK, CSL_USB_EP1_PACKET_SIZE_HS,
eventMask, NULL);
if(status != CSL_SOK) // USB End point init failed
return status;
/* Initialize the Bulk Endpoint OUT 2 */
eventMask = CSL_USB_EVENT_RESET | CSL_USB_EVENT_EOT;
status = USB_initEndptObj(CSL_USB0, hEpObjArray[3], CSL_USB_OUT_EP2,
CSL_USB_BULK, CSL_USB_EP2_PACKET_SIZE_HS,
eventMask, NULL);
if(status != CSL_SOK) // USB End point init failed
return status;
/* Set the parameters */
USB_setParams(CSL_USB0, hEpObjArray, TRUE);
/*
for(looper = 0; looper < CSL_USB_ENDPOINT_COUNT; looper++) {
gUsbEpHandle[looper] = hEpObjArray[looper];
if(hEpObjArray[looper] == NULL)
break;
}
*/
/* Connect the USB device */
CSL_FINS(usbRegisters->FADDR_POWER, USB_FADDR_POWER_SOFTCONN, TRUE);
return CSL_SOK;
}
VOID main(VOID)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
Init_StartUp(); //initialize device
USB_init();
USB_setEnabledEvents(USBEVIE);
// 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();
while(1)
{
switch(USB_connectionState())
{
case ST_USB_DISCONNECTED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
_NOP();
break;
case ST_USB_CONNECTED_NO_ENUM:
break;
case ST_ENUM_ACTIVE:
__bis_SR_register(LPM0_bits + GIE); // Enter LPM0 until an event occurs.
// This flag would have been set by the handleDataReceived event; this event is only enabled when waiting
// for 'press any key'
if(bCDCDataReceived_event)
{
bCDCDataReceived_event = FALSE;
// Change the event flags, in preparation for receiving 1K data
USBEVIE &= ~kUSB_dataReceivedEvent; // No more data-received. We only used this for 'press any key'
USBEVIE |= kUSB_receiveCompletedEvent; // But enable receive-completed; we want to be prompted when 1K data has been received
USB_setEnabledEvents(USBEVIE);
USBCDC_rejectData(0); // We don't care what char the key-press was
// Prompt user for 1K data
strcpy(outString,"I'm ready to receive 1K of data.\r\n"); // Prepare the outgoing string
if(cdcSendDataWaitTilDone((BYTE*)outString,strlen(outString),0,0)) // Send it over USB
{
USBCDC_abortSend(&x,0); // It failed for some reason; abort and leave the main loop
break;
}
// Set up rcv operation for 1K data
if(USBCDC_receiveData(dataBuff,1024,0) == kUSBCDC_busNotAvailable) //first USBCDC_receiveData
{
USBCDC_abortReceive(&x,0); // It failed because of surprise removal or suspended by host;
break; // abort and leave the main loop
}
}
// This flag would have been set by the handleReceiveCompleted event; this event is only enabled
// while receiving 1K data, and signals that all 1K has been received
if(bDataReceiveCompleted_event)
{
bDataReceiveCompleted_event = FALSE;
strcpy(outString,"Thanks for the data.\r\n"); // Prepare the outgoing string
if(cdcSendDataInBackground((BYTE*)outString,strlen(outString),0,0)) //Send the response over USB
{
USBCDC_abortSend(&x,0); // It failed for some reason; abort and leave the main loop
break;
}
// Change the event flags, in preparation for 'press any key'
USBEVIE &= ~kUSB_receiveCompletedEvent; // No more receive-completed.
USBEVIE |= kUSB_dataReceivedEvent; // This will tell us that data -- any data -- has arrived (i.e., a key-press)
USB_setEnabledEvents(USBEVIE);
}
break;
case ST_ENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/ interrupts
_NOP();
break;
case ST_ENUM_IN_PROGRESS:
break;
case ST_NOENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE);
_NOP();
break;
case ST_ERROR:
_NOP();
break;
default:;
}
} // while(1)
} //main()
/*----------------------------------------------------------------------------+
| Main Routine |
+----------------------------------------------------------------------------*/
VOID main(VOID)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
Init_StartUp();
USB_init();
USB_setEnabledEvents(kUSB_VbusOnEvent + kUSB_VbusOffEvent + kUSB_UsbSuspendEvent + kUSB_UsbResumeEvent + kUSB_dataReceivedEvent);
// Check if we're already physically attached to USB, and if so, connect to it
// This is the same function that gets called automatically when VBUS gets attached.
if (USB_connectionInfo() & kUSB_vbusPresent)
USB_handleVbusOnEvent();
// Pre-fill the buffers with visible ASCII characters (0x21 to 0x7E)
for(x=0;x<BUF_SIZE;x++)
{
dataBuf[x] = y++;
if(y>0x7E)
y = 0x21;
}
while(1)
{
switch(USB_connectionState())
{
case ST_USB_DISCONNECTED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
break;
case ST_USB_CONNECTED_NO_ENUM:
break;
case ST_ENUM_ACTIVE:
if(!bHIDDataReceived_event) // Do this until a key is pressed
{
strcpy(outString,"Press any key.\r"); // Prepare the outgoing string
if(hidSendDataWaitTilDone((BYTE*)outString,strlen(outString),0,0)) // Send it; no timeout
{
USBHID_abortSend(&x,0); // Operation may still be open; cancel it
break;
}
}
else
{
bHIDDataReceived_event = FALSE;
USBHID_rejectData(0);
for(rounds=0;rounds<300;rounds++)
{
if(hidSendDataWaitTilDone(dataBuf,BUF_SIZE,0,0)) // Send all of RAM
{
USBHID_abortSend(&x,0); // Operation probably still open; cancel it
break;
}
}
strcpy(outString,"\r\n\r\n\r\nThe test is completed.\r\n"); // Prepare the outgoing string
if(hidSendDataWaitTilDone((BYTE*)outString,strlen(outString),0,0)) // Send it; no timeout
{
USBHID_abortSend(&x,0); // Operation may still be open; cancel it
break;
}
}
break;
case ST_ENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
break;
case ST_ENUM_IN_PROGRESS:
break;
case ST_NOENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE);
break;
case ST_ERROR:
_NOP();
break;
default:;
}
} // while(1)
} //main()
/*----------------------------------------------------------------------------+
| Main Routine |
+----------------------------------------------------------------------------*/
VOID main(VOID)
{
BYTE y;
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
Init_StartUp();
USB_init();
USB_setEnabledEvents(kUSB_VbusOnEvent+kUSB_VbusOffEvent+kUSB_receiveCompletedEvent
+kUSB_dataReceivedEvent+kUSB_UsbSuspendEvent+kUSB_UsbResumeEvent+kUSB_UsbResetEvent);
// Check if we're already physically attached to USB, and if so, connect to it
// This is the same function that gets called automatically when VBUS gets attached.
if (USB_connectionInfo() & kUSB_vbusPresent)
USB_handleVbusOnEvent();
// Pre-fill the buffers with visible ASCII characters (0x21 to 0x7E)
y=0x21;
for(w=0;w<MEGA_DATA_LENGTH;w++)
{
bufferX[w] = y;
bufferY[w] = y++;
if(y>0x7E)
y = 0x21;
}
while(1)
{
switch(USB_connectionState())
{
case ST_USB_DISCONNECTED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
break;
case ST_USB_CONNECTED_NO_ENUM:
break;
case ST_ENUM_ACTIVE:
if(!bCDCDataReceived_event) // Do this until a key is pressed
{
strcpy(pakOutString,"Press any key.\r"); // Prepare the outgoing string
if(cdcSendDataInBackground((BYTE*)pakOutString,strlen(pakOutString),0,0)) // Send it
{
USBCDC_abortSend(&w,0); // Operation probably still open; cancel it
break; // The break isn't really necessary since it'll go to the end of the loop anyway, but it's shown for completeness
}
}
else
{
if(cdcSendDataInBackground((BYTE*)bufferX,MEGA_DATA_LENGTH,0,0))
{
bCDCDataReceived_event = FALSE;
USBCDC_abortSend(&w,0); // Operation probably still open; cancel it
break;
}
// Between these functions, don't modify bufferX. However, bufferY can be modified.
if(cdcSendDataInBackground((BYTE*)bufferY,MEGA_DATA_LENGTH,0,0))
{
bCDCDataReceived_event = FALSE;
USBCDC_abortSend(&w,0); // Operation probably still open; cancel it
break;
}
// Until the next call to sendData_inBackground(), don't modify bufferY. However, bufferX can be modified.
if(rounds++>=500)
{
strcpy(outString,"\r\n\r\nThe test is completed.\r\n\r\n"); // Prepare the outgoing string
if(cdcSendDataInBackground((BYTE*)outString,strlen(outString),0,0)) // Send it
{
USBCDC_abortSend(&w,0); // Operation may still be open; cancel it
break;
}
bCDCDataReceived_event= FALSE;
rounds = 0;
USBCDC_rejectData(0); // Reject data from previous keypress, in preparation for another one
} // It's been in the USB buffer all this time...
}
break;
case ST_ENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
break;
case ST_ENUM_IN_PROGRESS:
break;
case ST_NOENUM_SUSPENDED:
__bis_SR_register(LPM3_bits + GIE);
_NOP();
break;
case ST_ERROR:
_NOP();
break;
default:;
}
} // while(1)
} //main()
int main(){
//int i;
uint32_t Shtr_blink_timer = 0, Old_timer = 0, lastTRDread = 0, lastTmon = 0, OW_timer = 0;
int oldusbdatalen = 0;
//SPI_read_status SPI_stat;
// RCC clocking: 8MHz oscillator -> 72MHz system
rcc_clock_setup_in_hse_8mhz_out_72mhz();
// turn off SWJ/JTAG
AFIO_MAPR = AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_OFF;
// GPIO
GPIO_init();
usb_disconnect(); // turn off USB while initializing all
// init USART3 (master) & USART1 (slave)
UART_init(USART3);
UART_init(USART1);
// USB
usbd_dev = USB_init();
// SysTick is a system timer with 1mc period
SysTick_init();
// instead of SPI1 we use those pins to control shutter and system state
// SPI2 used for working with external ADC
switch_SPI(SPI2); // init SPI2
SPI_init();
// wait a little and then turn on USB pullup
// for (i = 0; i < 0x800000; i++)
// __asm__("nop");
// init ADC
ADC_init();
ADC_calibrate_and_start();
steppers_init();
usb_connect(); // turn on USB
shutter_init();
read_stored_data(); // copy stored data into RAM
init_ow_dmatimer();
//OW_send_read_seq();
LED_STATUS_OK(); // All initialized - light up LED
while(1){
init_on_poweron_proc();
usbd_poll(usbd_dev);
if(oldusbdatalen != usbdatalen){ // there's something in USB buffer
usbdatalen = parce_incoming_buf(usbdatabuf, usbdatalen, usb_send);
oldusbdatalen = usbdatalen;
}
check_and_parce_UART(USART3); // check data in master UART buffers
check_and_parce_UART(USART1); // also check data in slave UART buffers
if(ad7794_on){
if(Timer != lastTRDread){ // run this not more than once in 1ms
lastTRDread = Timer;
read_next_TRD();
}
}
OW_process(); // process 1-wire commands
// scan 1-wire each 1 second
if(OW_scan && (Timer - OW_timer > 999 || Timer < OW_timer)){
OW_timer = Timer;
scan_onewire();
}
process_stepper_motors(); // check flags of motors' timers
process_shutter(); // shutter state machine
if(Timer - Shtr_blink_timer > 500 || Timer < Shtr_blink_timer){
Shtr_blink_timer = Timer;
// shutter LED will be blinking until init occurs
if(Shutter_State == SHUTTER_NOTREADY)
gpio_toggle(LED_SHUTTER_PORT, LED_SHUTTER_PIN);
}
if(Timer - Old_timer > 999){ // one-second cycle
Old_timer += 1000;
// init shutter if error occurs
if(Shutter_State == SHUTTER_NOTREADY){
shutter_init();
}
}else if(Timer < Old_timer){ // Timer overflow
Old_timer = 0;
tOVRFL++; // this is an overflow counter - for workinkg in long-long time interval
}
if((Timer - lastTmon > 9999) || (Timer < lastTmon)){ // run constant monitoring of ADC values each 10 seconds
lastTmon += 10000;
if(ADC_monitoring){
print_time(lastsendfun);
print_int_ad_vals(lastsendfun);
print_ad_vals(lastsendfun);
}
}
}
}
CSL_Status CSL_usbPollTest(void)
{
CSL_Status status;
CSL_Status result;
pUsbContext pContext;
pUsbEpHandle hEPx;
CSL_UsbBoolean txRxStatus;
Uint16 bytesRem;
Uint16 eventMask;
Uint16 saveIndex;
Uint16 endpt;
pUsbEpHandle tempEpH;
pContext = &gUsbContext;
result = CSL_USB_TEST_FAILED;
usbConfig.opMode = CSL_USB_OPMODE_POLLED;
usbConfig.devNum = CSL_USB0;
usbConfig.maxCurrent = CSL_USB_MAX_CURRENT;
usbConfig.appSuspendCallBack = (CSL_USB_APP_CALLBACK)CSL_suspendCallBack;
usbConfig.appWakeupCallBack = (CSL_USB_APP_CALLBACK)CSL_selfWakeupCallBack;
usbConfig.startTransferCallback = CSL_startTransferCallback;
usbConfig.completeTransferCallback = CSL_completeTransferCallback;
hEpObjArray[0] = &usbCtrlOutEpObj;
hEpObjArray[1] = &usbCtrlInEpObj;
hEpObjArray[2] = &usbBulkOutEpObj;
hEpObjArray[3] = &usbBulkInEpObj;
#ifdef CSL_USB_SELFWAKEUP_TEST
/* Configure SAR to generate event for self wakeup */
/* NOTE: Self Wakeup is interfaced to the STOP key of the EVM keypad */
status = CSL_configSarForSelfWakeup();
if(status != CSL_SOK)
{
printf("SAR Configuration failed\n");
return(result);
}
#endif // CSL_USB_SELFWAKEUP_TEST
/* Initialize the USB module */
status = USB_init(&usbConfig);
if(status != CSL_SOK)
{
printf("USB init failed\n");
return(result);
}
/* Reset the USB device */
status = USB_resetDev(CSL_USB0);
if(status != CSL_SOK)
{
printf("USB Reset failed\n");
return(result);
}
/* Initialized the Control Endpoint OUT 0 */
eventMask = (CSL_USB_EVENT_RESET | CSL_USB_EVENT_SETUP |
CSL_USB_EVENT_SUSPEND | CSL_USB_EVENT_RESUME |
CSL_USB_EVENT_RESET | CSL_USB_EVENT_EOT);
status = USB_initEndptObj(CSL_USB0, hEpObjArray[0],
CSL_USB_OUT_EP0,CSL_USB_CTRL,
CSL_USB_EP0_PACKET_SIZE, eventMask, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Initialized the Control Endpoint IN 0 */
status = USB_initEndptObj(CSL_USB0, hEpObjArray[1], CSL_USB_IN_EP0,
CSL_USB_CTRL, CSL_USB_EP0_PACKET_SIZE,
CSL_USB_EVENT_EOT, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Initialize the Bulk Endpoint IN 1 */
eventMask = (CSL_USB_EVENT_RESET | CSL_USB_EVENT_EOT);
status = USB_initEndptObj(CSL_USB0, hEpObjArray[2], CSL_USB_IN_EP1,
CSL_USB_BULK, CSL_USB_EP1_PACKET_SIZE_FS,
eventMask, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Initialize the Bulk Endpoint OUT 2 */
status = USB_initEndptObj(CSL_USB0, hEpObjArray[3], CSL_USB_OUT_EP2,
CSL_USB_BULK, CSL_USB_EP2_PACKET_SIZE_FS,
CSL_USB_EVENT_EOT, NULL);
if(status != CSL_SOK)
{
printf("USB End point init failed\n");
return(result);
}
/* Set the parameters */
status = USB_setParams(CSL_USB0, hEpObjArray, FALSE);
if(status != CSL_SOK)
{
printf("USB Set params failed\n");
return(result);
}
/* Connect the USB device */
status = USB_connectDev(CSL_USB0);
if(status != CSL_SOK)
{
printf("USB Connect failed\n");
return(result);
}
deviceDescPtr = (Uint16 *)deviceDesc;
cfgDescPtr = (Uint16 *)cfgDesc;
strDescPtr = (Uint16 *)strDesc;
selfWakeupServiced = TRUE;
while(stopRunning != TRUE)
{
/* Read the masked interrupt status register */
pContext->dwIntSourceL = usbRegisters->INTMASKEDR1;
pContext->dwIntSourceH = usbRegisters->INTMASKEDR2;
/* Clear the interrupts */
if(pContext->dwIntSourceL != FALSE)
{
usbRegisters->INTCLRR1 = pContext->dwIntSourceL;
}
if(pContext->dwIntSourceH != FALSE)
{
usbRegisters->INTCLRR2 = pContext->dwIntSourceH;
}
/* Reset interrupt */
if(pContext->dwIntSourceH & CSL_USB_GBL_INT_RESET)
{
usbRegisters->INDEX_TESTMODE = usbRegisters->INDEX_TESTMODE & 0x00ff;
if(usbBulkOutEpObj.epNum == CSL_USB_IN_EP1)
{
CSL_FINS(usbRegisters->INDEX_TESTMODE,
USB_INDEX_TESTMODE_EPSEL, CSL_USB_EP1);
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_RXPKTRDY, TRUE);
}
else
{
CSL_FINS(usbRegisters->INDEX_TESTMODE,
USB_INDEX_TESTMODE_EPSEL, CSL_USB_EP2);
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_RXPKTRDY, TRUE);
}
}
/* Resume interrupt */
if(pContext->dwIntSourceH & CSL_USB_GBL_INT_RESUME)
{
USB_setRemoteWakeup(CSL_USB0, CSL_USB_TRUE);
status = USB_issueRemoteWakeup(CSL_USB0, TRUE);
/* Give 10 msecs delay before resetting resume bit */
USB_delay(CSL_USB_WAKEUP_DELAY);
status = USB_issueRemoteWakeup(CSL_USB0, FALSE);
if(status != CSL_SOK)
{
printf("USB Resume failed\n");
/////INSTRUMENTATION FOR BATCH TESTING -- Part 2 --
///// Reseting PaSs_StAtE to 0 if error detected here.
PaSs_StAtE = 0x0000; // Was intialized to 1 at declaration.
/////
}
}
/* Check End point0 interrupts */
if(pContext->dwIntSourceL & CSL_USB_TX_RX_INT_EP0)
{
saveIndex = usbRegisters->INDEX_TESTMODE;
CSL_FINS(usbRegisters->INDEX_TESTMODE,
USB_INDEX_TESTMODE_EPSEL, CSL_USB_EP0);
USB_getSetupPacket(CSL_USB0, &usbSetup, TRUE);
if((usbRegisters->PERI_CSR0_INDX & CSL_USB_PERI_CSR0_INDX_RXPKTRDY_MASK)
== CSL_USB_PERI_CSR0_INDX_RXPKTRDY_MASK)
{
/* Service the RXPKTRDY after reading the FIFO */
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_SERV_RXPKTRDY, TRUE);
/* GET DESCRIPTOR Req */
switch(usbSetup.bRequest)
{
/* zero data */
case CSL_USB_SET_FEATURE:
switch(usbSetup.wValue)
{
case CSL_USB_FEATURE_ENDPOINT_STALL:
/* updated set and clear endpoint stall
* to work with logical endpoint num
*/
endpt = (usbSetup.wIndex) & 0xFF;
hEPx = USB_epNumToHandle(CSL_USB0, endpt);
if(!(USB_getEndptStall(hEPx, &status)))
{
USB_stallEndpt(hEPx);
}
break;
case CSL_USB_FEATURE_REMOTE_WAKEUP:
if(!(USB_getRemoteWakeupStat(CSL_USB0)))
{
USB_setRemoteWakeup(CSL_USB0, CSL_USB_TRUE);
}
break;
default:
break;
}
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_SERV_RXPKTRDY, TRUE);
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_DATAEND, TRUE);
break;
case CSL_USB_CLEAR_FEATURE:
switch(usbSetup.wValue)
{
case CSL_USB_FEATURE_ENDPOINT_STALL:
endpt = (usbSetup.wIndex) & 0xFF;
hEPx = USB_epNumToHandle(CSL_USB0, endpt);
if(USB_getEndptStall(hEPx, &status))
{
USB_clearEndptStall(hEPx);
}
break;
case CSL_USB_FEATURE_REMOTE_WAKEUP:
if(USB_getRemoteWakeupStat(CSL_USB0))
{
USB_setRemoteWakeup(CSL_USB0,
CSL_USB_FALSE);
}
break;
default:
break;
}
break;
case CSL_USB_SET_CONFIGURATION :
case CSL_USB_SET_INTERFACE:
endpt = (usbSetup.wIndex) & 0xFF;
hEPx = USB_epNumToHandle(CSL_USB0, endpt);
USB_postTransaction(hEPx, 0, NULL,
CSL_USB_IOFLAG_NONE);
/* DataEnd + ServicedRxPktRdy */
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_SERV_RXPKTRDY, TRUE);
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_DATAEND, TRUE);
break;
case CSL_USB_GET_DESCRIPTOR :
switch(usbSetup.wValue >> 8)
{
case CSL_USB_DEVICE_DESCRIPTOR_TYPE:
deviceDescPtr = (Uint16 *)deviceDesc;
status = USB_postTransaction(hEpObjArray[1],
deviceDesc[0]&0xFF, deviceDescPtr,
CSL_USB_IN_TRANSFER);
break;
case CSL_USB_CONFIGURATION_DESCRIPTOR_TYPE:
if(usbSetup.wLength == 0x0009)
{
cfgDescPtr = cfgDesc;
status = USB_postTransaction(hEpObjArray[1],
9, cfgDescPtr,
CSL_USB_IN_TRANSFER);
}
else
{
cfgDescPtr = cfgDesc;
status = USB_postTransaction(hEpObjArray[1],
cfgDesc[1], cfgDescPtr,
CSL_USB_IN_TRANSFER);
}
break;
case CSL_USB_STRING_DESCRIPTOR_TYPE:
if((usbSetup.wValue & 0xFF) == 0x00)
{
strDescPtr = (Uint16 *)strDesc[0];
status = USB_postTransaction(hEpObjArray[1],
strDesc[0][0]&0xFF, strDescPtr,
CSL_USB_IN_TRANSFER);
}
if((usbSetup.wValue & 0xFF) == 0x01)
{
strDescPtr = (Uint16 *)strDesc[1];
status = USB_postTransaction(hEpObjArray[1],
strDesc[1][0]&0xFF, strDescPtr,
CSL_USB_IN_TRANSFER);
}
if((usbSetup.wValue & 0xFF) == 0x02)
{
strDescPtr = (Uint16 *)strDesc[2];
status = USB_postTransaction(hEpObjArray[1],
strDesc[2][0]&0xFF, strDescPtr,
CSL_USB_IN_TRANSFER);
}
if((usbSetup.wValue & 0xFF) == 0x03)
{
strDescPtr = (Uint16 *)strDesc[3];
status = USB_postTransaction(hEpObjArray[1],
strDesc[3][0]&0xFF, strDescPtr,
CSL_USB_IN_TRANSFER);
}
break;
default:
break;
}
deviceDescPtr = (Uint16 *)deviceDesc;
cfgDescPtr = (Uint16 *)cfgDesc;
strDescPtr = (Uint16 *)strDesc[0];
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_TXPKTRDY, TRUE);
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_DATAEND, TRUE);
break;
case CSL_USB_SET_ADDRESS :
devAddr = usbSetup.wValue;
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_SERV_RXPKTRDY, TRUE);
CSL_FINS(usbRegisters->PERI_CSR0_INDX,
USB_PERI_CSR0_INDX_DATAEND, TRUE);
break;
default:
break;
}
}
else
{
if(usbSetup.bRequest == 0x05)
/*----------------------------------------------------------------------------+
| Main Routine |
+----------------------------------------------------------------------------*/
VOID main(VOID)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
Init_StartUp(); // Initialize clocks, power, I/Os
__enable_interrupt();
USB_init(); // Initialize the USB module
// Enable all USB events
USB_setEnabledEvents(kUSB_allUsbEvents);
// 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. This function returns the pointer for a given LUN and buffer side.
RWbuf = USBMSC_fetchInfoStruct(); // 0 for X-buffer
// The application must tell the API about the media. Since the media isn't removable, this is only called
// once, at the beginning of execution. If the media were removeable, the application must call this any time
// the status of the media changes.
struct USBMSC_mediaInfoStr mediainfo; // This struct type contains information about the state of the medium.
// Since it's only used locally, it's declared within main so that it's
// taken from the heap rather than as a static global.
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);
// 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)
{
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 (avoid sleeping accidentally).
__disable_interrupt();
if(USBMSC_poll() == kUSBMSC_okToSleep)
{
__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 respond by checking 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 doing so, we must indicate whether the operation succeeded, and
// close the buffer operation by calling USBMSC_bufferProcessed().
while(RWbuf->operation == kUSBMSC_READ)
{
RWbuf->returnCode = Read_LBA(RWbuf->lba, RWbuf->bufferAddr, RWbuf->lbCount); // Fetch a block from the medium, using file system emulation
USBMSC_bufferProcessed(); // Close the buffer operation
}
// Same as above, except for WRITE. If operation == kUSBMSC_WRITE, then the API is waiting for us to
// process the buffer by writing the contents to the storage volume.
while(RWbuf->operation == kUSBMSC_WRITE)
{
RWbuf->returnCode = Write_LBA(RWbuf->lba, RWbuf->bufferAddr, RWbuf->lbCount); // Write the block to the medium, using file system emulation
USBMSC_bufferProcessed(); // Close the buffer operation
}
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:;
}
} // while(1)
} //main()