/*******************************************************************************
* Main Routine
*******************************************************************************/
int main (void)
{
printf("\n\rInitializing SD Card...\r\n");
/* Initialize SPI driver and SD Card */
if(RES_OK != disk_initialize(SD))
{
printf("Failed to initialize SD disk\r\n");
while(1);
}
if(FR_OK != fatdemo())
{
printf("FAT Demo failed\r\n");
g_card_initialized = 0;
}
/* if the SD card is initialized, enable the USB MSD device */
if(g_card_initialized)
{
usbd_init();
usbd_connect(__TRUE);
usb_state = USB_CONNECTING;
while (!usbd_configured ()); /* Wait for device to configure */
}
EnableInterrupts;
while(1)
{
Delayms(500);
}
}
void USBD_Error_Event(void)
{
LedConnectedOn();
LedRunningOn();
usbd_connect(__FALSE);
usbd_reset_core();
HardFault_Handler();
}
/* devices ( see devi_register_hid_client) */
int devi_usb_server_connect(char * serv_path_name)
{
int rc = EOK;
usbd_funcs_t funcs = { _USBDI_NFUNCS, insertion, removal, NULL };
usbd_device_ident_t interest = { USBD_CONNECT_WILDCARD, USBD_CONNECT_WILDCARD, USBD_CONNECT_WILDCARD, USBD_CONNECT_WILDCARD, USBD_CONNECT_WILDCARD };
usbd_connect_parm_t parm = { NULL, USB_VERSION, USBD_VERSION, 0, 0, NULL, 0, &interest, &funcs, USBD_CONNECT_WAIT };
parm.path = serv_path_name;
if(EOK != ( rc = usbd_connect( &parm, &pGlbConnection ) ) )
{
char * pMsgTxt = "Error: cannot connect to USB server (error code = %d).\nDriver is terminating\n";
fprintf(stderr, pMsgTxt, rc);
slogf(_SLOG_SETCODE(_SLOGC_INPUT, 0), _SLOG_ERROR, pMsgTxt, rc);
exit(-2);
}
return EOK;
}
void usb_thread_entry(void* parameter)
{
int i;
rt_thread_t tid;
msd_msg_t msg;
dev = rt_device_find(MOUNT_DEVICE);
if(!dev)
{
rt_kprintf("no %s device found!\r\n", MOUNT_DEVICE);
tid = rt_thread_self();
rt_thread_delete(tid);
}
rt_device_init(dev);
rt_device_open(dev, RT_DEVICE_OFLAG_RDWR);
usbd_init(); /* USB Device Initialization */
usbd_connect(__TRUE); /* USB Device Connect */
while (!usbd_configured ())
{
rt_thread_delay(10);
}
rt_kprintf("usb enum complete\r\n");
while(1)
{
if(rt_mq_recv(msd_mq, &msg, sizeof(msd_msg_t), RT_WAITING_FOREVER) == RT_EOK)
{
if(msg.dir == 0) USBD_MSC_EP_BULKOUT_Event(0);
else USBD_MSC_EP_BULKIN_Event (0);
}
}
}
__task void main_task(void)
{
// State processing
uint16_t flags = 0;
// LED
gpio_led_state_t hid_led_value = GPIO_LED_ON;
gpio_led_state_t cdc_led_value = GPIO_LED_ON;
gpio_led_state_t msc_led_value = GPIO_LED_ON;
// USB
uint32_t usb_state_count = USB_BUSY_TIME;
// thread running after usb connected started
uint8_t thread_started = 0;
// button state
main_reset_state_t main_reset_button_state = MAIN_RESET_RELEASED;
// Initialize settings
config_init();
// Initialize our serial mailbox
os_mbx_init(&serial_mailbox, sizeof(serial_mailbox));
// Get a reference to this task
main_task_id = os_tsk_self();
// leds
gpio_init();
// Turn off LED
gpio_set_hid_led(GPIO_LED_ON);
gpio_set_cdc_led(GPIO_LED_ON);
gpio_set_msc_led(GPIO_LED_ON);
// do some init with the target before USB and files are configured
prerun_target_config();
// Update versions and IDs
info_init();
// USB
usbd_init();
vfs_user_enable(true);
usbd_connect(0);
usb_state = USB_CONNECTING;
usb_state_count = USB_CONNECT_DELAY;
// Start timer tasks
os_tsk_create_user(timer_task_30mS, TIMER_TASK_30_PRIORITY, (void *)stk_timer_30_task, TIMER_TASK_30_STACK);
// Target running
target_set_state(RESET_RUN);
while(1) {
os_evt_wait_or( FLAGS_MAIN_RESET // Put target in reset state
| FLAGS_MAIN_90MS // 90mS tick
| FLAGS_MAIN_30MS // 30mS tick
| FLAGS_MAIN_POWERDOWN // Power down interface
| FLAGS_MAIN_DISABLEDEBUG // Disable target debug
| FLAGS_MAIN_PROC_USB // process usb events
,NO_TIMEOUT);
// Find out what event happened
flags = os_evt_get();
if (flags & FLAGS_MAIN_PROC_USB) {
USBD_Handler();
}
if (flags & FLAGS_MAIN_RESET) {
target_set_state(RESET_RUN);
}
if (flags & FLAGS_MAIN_POWERDOWN) {
// Disable debug
target_set_state(NO_DEBUG);
// Disconnect USB
usbd_connect(0);
// Turn off LED
gpio_set_hid_led(GPIO_LED_OFF);
gpio_set_cdc_led(GPIO_LED_OFF);
gpio_set_msc_led(GPIO_LED_OFF);
// TODO: put the interface chip in sleep mode
while(1);
}
if (flags & FLAGS_MAIN_DISABLEDEBUG) {
// Disable debug
target_set_state(NO_DEBUG);
}
if (flags & FLAGS_MAIN_90MS) {
// Update USB busy status
vfs_user_periodic(90); // FLAGS_MAIN_90MS
// Update USB connect status
switch (usb_state) {
case USB_DISCONNECTING:
usb_state = USB_DISCONNECTED;
usbd_connect(0);
break;
case USB_CONNECTING:
// Wait before connecting
if (DECZERO(usb_state_count) == 0) {
usbd_connect(1);
usb_state = USB_CHECK_CONNECTED;
}
break;
case USB_CHECK_CONNECTED:
if(usbd_configured()) {
if (!thread_started) {
os_tsk_create_user(hid_process, DAP_TASK_PRIORITY, (void *)stk_dap_task, DAP_TASK_STACK);
serial_task_id = os_tsk_create_user(serial_process, SERIAL_TASK_PRIORITY, (void *)stk_serial_task, SERIAL_TASK_STACK);
thread_started = 1;
}
usb_state = USB_CONNECTED;
}
break;
case USB_CONNECTED:
case USB_DISCONNECTED:
default:
break;
}
}
// 30mS tick used for flashing LED when USB is busy
if (flags & FLAGS_MAIN_30MS) {
// handle reset button without eventing
switch (main_reset_button_state) {
default:
case MAIN_RESET_RELEASED:
if (0 == gpio_get_sw_reset()) {
main_reset_button_state = MAIN_RESET_PRESSED;
target_forward_reset(true);
}
break;
case MAIN_RESET_PRESSED:
// ToDo: add a counter to do a mass erase or target recovery after xxx seconds of being held
if (1 == gpio_get_sw_reset()) {
main_reset_button_state = MAIN_RESET_TARGET;
}
break;
case MAIN_RESET_TARGET:
target_forward_reset(false);
main_reset_button_state = MAIN_RESET_RELEASED;
break;
}
if (hid_led_usb_activity && ((hid_led_state == MAIN_LED_FLASH) || (hid_led_state == MAIN_LED_FLASH_PERMANENT))) {
// Flash DAP LED ONCE
if (hid_led_value) {
hid_led_value = GPIO_LED_OFF;
} else {
hid_led_value = GPIO_LED_ON; // Turn on
if (hid_led_state == MAIN_LED_FLASH) {
hid_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_hid_led(hid_led_value);
}
if (msc_led_usb_activity && ((msc_led_state == MAIN_LED_FLASH) || (msc_led_state == MAIN_LED_FLASH_PERMANENT))) {
// Flash MSD LED ONCE
if (msc_led_value) {
msc_led_value = GPIO_LED_OFF;
} else {
msc_led_value = GPIO_LED_ON; // Turn on
if (msc_led_state == MAIN_LED_FLASH) {
msc_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_msc_led(msc_led_value);
}
if (cdc_led_usb_activity && ((cdc_led_state == MAIN_LED_FLASH) || (cdc_led_state == MAIN_LED_FLASH_PERMANENT))) {
// Flash CDC LED ONCE
if (cdc_led_value) {
cdc_led_value = GPIO_LED_OFF;
} else {
cdc_led_value = GPIO_LED_ON; // Turn on
if (cdc_led_state == MAIN_LED_FLASH) {
cdc_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_cdc_led(cdc_led_value);
}
}
}
}
__task void main_task(void) {
// State processing
uint16_t flags;
// LED
uint8_t dap_led_value = 1;
uint8_t cdc_led_value = 1;
uint8_t msd_led_value = 1;
// USB
uint32_t usb_state_count;
// thread running after usb connected started
uint8_t thread_started = 0;
// button state
char button_activated;
// string containing unique ID
uint8_t * id_str;
// Get a reference to this task
main_task_id = os_tsk_self();
// leds
gpio_init();
usbd_init();
swd_init();
// Turn on LED
gpio_set_dap_led(1);
gpio_set_cdc_led(1);
gpio_set_msd_led(1);
// Setup reset button
gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
button_activated = 1;
// USB
usbd_connect(0);
usb_busy = USB_IDLE;
usb_busy_count = 0;
usb_state = USB_CONNECTING;
usb_state_count = USB_CONNECT_DELAY;
// Update HTML version information file
update_html_file();
// Start timer tasks
os_tsk_create_user(timer_task_30mS, TIMER_TASK_30_PRIORITY, (void *)stk_timer_30_task, TIMER_TASK_30_STACK);
// Target running
target_set_state(RESET_RUN_WITH_DEBUG);
// start semihost task
semihost_init();
semihost_enable();
while(1) {
os_evt_wait_or( FLAGS_MAIN_RESET // Put target in reset state
| FLAGS_MAIN_90MS // 90mS tick
| FLAGS_MAIN_30MS // 30mS tick
| FLAGS_MAIN_POWERDOWN // Power down interface
| FLAGS_MAIN_DISABLEDEBUG // Power down interface
| FLAGS_MAIN_USB_DISCONNECT, // Disable target debug
NO_TIMEOUT);
// Find out what event happened
flags = os_evt_get();
if (flags & FLAGS_MAIN_USB_DISCONNECT) {
usb_busy = USB_IDLE; // USB not busy
usb_state_count = 4;
usb_state = USB_DISCONNECT_CONNECT; // disconnect the usb
}
if (flags & FLAGS_MAIN_RESET) {
cdc_led_state = LED_OFF;
gpio_set_cdc_led(0);
//usbd_cdc_ser_flush();
if (send_uID) {
// set the target in reset to not receive char on the serial port
target_set_state(RESET_HOLD);
// send uid
id_str = get_uid_string();
USBD_CDC_ACM_DataSend(id_str, strlen((const char *)id_str));
send_uID = 0;
}
// Reset target
target_set_state(RESET_RUN);
cdc_led_state = LED_FLASH;
gpio_set_cdc_led(1);
button_activated = 0;
}
if (flags & FLAGS_MAIN_POWERDOWN) {
// Stop semihost task
semihost_disable();
// Disable debug
target_set_state(NO_DEBUG);
// Disconnect USB
usbd_connect(0);
// Turn off LED
gpio_set_dap_led(0);
gpio_set_cdc_led(0);
gpio_set_msd_led(0);
// TODO: put the interface chip in sleep mode
while (1) { }
}
if (flags & FLAGS_MAIN_DISABLEDEBUG) {
// Stop semihost task
semihost_disable();
// Disable debug
target_set_state(NO_DEBUG);
}
if (flags & FLAGS_MAIN_90MS) {
if (!button_activated) {
gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
button_activated = 1;
}
// Update USB busy status
switch (usb_busy) {
case USB_ACTIVE:
if (DECZERO(usb_busy_count) == 0) {
usb_busy=USB_IDLE;
}
break;
case USB_IDLE:
default:
break;
}
// Update USB connect status
switch (usb_state) {
case USB_DISCONNECTING:
// Wait until USB is idle before disconnecting
if (usb_busy == USB_IDLE) {
usbd_connect(0);
usb_state = USB_DISCONNECTED;
}
break;
case USB_DISCONNECT_CONNECT:
// Wait until USB is idle before disconnecting
if ((usb_busy == USB_IDLE) && (DECZERO(usb_state_count) == 0)) {
usbd_connect(0);
usb_state = USB_CONNECTING;
// Update HTML file
update_html_file();
}
break;
case USB_CONNECTING:
// Wait before connecting
if (DECZERO(usb_state_count) == 0) {
usbd_connect(1);
usb_state = USB_CHECK_CONNECTED;
}
break;
case USB_CHECK_CONNECTED:
if(usbd_configured()) {
if (!thread_started) {
os_tsk_create_user(hid_process, DAP_TASK_PRIORITY, (void *)stk_dap_task, DAP_TASK_STACK);
serial_task_id = os_tsk_create_user(serial_process, SERIAL_TASK_PRIORITY, (void *)stk_serial_task, SERIAL_TASK_STACK);
thread_started = 1;
}
usb_state = USB_CONNECTED;
}
break;
case USB_CONNECTED:
case USB_DISCONNECTED:
default:
break;
}
}
// 30mS tick used for flashing LED when USB is busy
if (flags & FLAGS_MAIN_30MS) {
if (dap_led_usb_activity && ((dap_led_state == LED_FLASH) || (dap_led_state == LED_FLASH_PERMANENT))) {
// Flash DAP LED ONCE
if (dap_led_value) {
dap_led_value = 0;
} else {
dap_led_value = 1; // Turn on
if (dap_led_state == LED_FLASH) {
dap_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_dap_led(dap_led_value);
}
if (msd_led_usb_activity && ((msd_led_state == LED_FLASH) || (msd_led_state == LED_FLASH_PERMANENT))) {
// Flash MSD LED ONCE
if (msd_led_value) {
msd_led_value = 0;
} else {
msd_led_value = 1; // Turn on
if (msd_led_state == LED_FLASH) {
msd_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_msd_led(msd_led_value);
}
if (cdc_led_usb_activity && ((cdc_led_state == LED_FLASH) || (cdc_led_state == LED_FLASH_PERMANENT))) {
// Flash CDC LED ONCE
if (cdc_led_value) {
cdc_led_value = 0;
} else {
cdc_led_value = 1; // Turn on
if (cdc_led_state == LED_FLASH) {
cdc_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_cdc_led(cdc_led_value);
}
}
}
}
__task void main_task(void) {
// State processing
uint16_t flags;
// LED
uint8_t dap_led_value = 1;
uint8_t cdc_led_value = 1;
uint8_t msd_led_value = 1;
// USB
uint32_t usb_state_count;
// thread running after usb connected started
uint8_t thread_started = 0;
// button state
char button_activated;
// string containing unique ID
uint8_t * id_str;
// Initialize our serial mailbox
os_mbx_init(&serial_mailbox, sizeof(serial_mailbox));
// Get a reference to this task
main_task_id = os_tsk_self();
// leds
gpio_init();
// Turn off LED
gpio_set_dap_led(1);
gpio_set_cdc_led(1);
gpio_set_msd_led(1);
#ifdef BOARD_UBLOX_C027
PORT_SWD_SETUP();
// wait until reset output to the target is pulled high
while (!PIN_nRESET_IN()) {
/* wait doing nothing */
}
os_dly_wait(4);
// if the reset input from button is low then enter isp programming mode
if (!(LPC_GPIO->B[19/*RESET_PIN*/ + (1/*RESET_PORT*/ << 5)] & 1)) {
enter_isp();
}
#endif
usbd_init();
swd_init();
// Setup reset button
gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
button_activated = 1;
// USB
usbd_connect(0);
usb_busy = USB_IDLE;
usb_busy_count = 0;
usb_state = USB_CONNECTING;
usb_state_count = USB_CONNECT_DELAY;
// Update HTML version information file
update_html_file();
// Start timer tasks
os_tsk_create_user(timer_task_30mS, TIMER_TASK_30_PRIORITY, (void *)stk_timer_30_task, TIMER_TASK_30_STACK);
#ifndef BOARD_UBLOX_C027
// Target running
//target_set_state(RESET_RUN_WITH_DEBUG);
#endif
#ifdef BOARD_NRF51822AA
// Target running
target_set_state(RESET_RUN);
#endif
// start semihost task
semihost_init();
semihost_enable();
while(1) {
os_evt_wait_or( FLAGS_MAIN_RESET // Put target in reset state
| FLAGS_MAIN_90MS // 90mS tick
| FLAGS_MAIN_30MS // 30mS tick
| FLAGS_MAIN_POWERDOWN // Power down interface
| FLAGS_MAIN_DISABLEDEBUG // Power down interface
#ifdef USE_USB_EJECT_INSERT
| FLAGS_MAIN_USB_DISCONNECT // Disable target debug
| FLAGS_MAIN_USB_MEDIA_EJECT, // Eject file system
#else
| FLAGS_MAIN_USB_DISCONNECT, // Disable target debug
#endif
NO_TIMEOUT);
// Find out what event happened
flags = os_evt_get();
if (flags & FLAGS_MAIN_USB_DISCONNECT) {
usb_busy = USB_IDLE; // USB not busy
usb_state_count = 4;
usb_state = USB_DISCONNECT_CONNECT; // disconnect the usb
}
#ifdef USE_USB_EJECT_INSERT
if (flags & FLAGS_MAIN_USB_MEDIA_EJECT) {
EjectInsertMediaMode = EJECT_INSERT_WAIT_TO_EJECT;
EjectInsertMediaCounter = EJECT_INSERT_DELAY_500MS;
}
#endif
if (flags & FLAGS_MAIN_RESET) {
cdc_led_state = LED_OFF;
gpio_set_cdc_led(0);
//usbd_cdc_ser_flush();
if (send_uID) {
// set the target in reset to not receive char on the serial port
target_set_state(RESET_HOLD);
// send uid
id_str = get_uid_string();
USBD_CDC_ACM_DataSend(id_str, strlen((const char *)id_str));
send_uID = 0;
}
// Reset target
target_set_state(RESET_RUN);
cdc_led_state = LED_FLASH;
gpio_set_cdc_led(1);
button_activated = 0;
}
if (flags & FLAGS_MAIN_POWERDOWN) {
// Stop semihost task
semihost_disable();
// Disable debug
target_set_state(NO_DEBUG);
// Disconnect USB
usbd_connect(0);
// Turn off LED
gpio_set_dap_led(0);
gpio_set_cdc_led(0);
gpio_set_msd_led(0);
// TODO: put the interface chip in sleep mode
while (1) { }
}
if (flags & FLAGS_MAIN_DISABLEDEBUG) {
// Stop semihost task
semihost_disable();
// Disable debug
target_set_state(NO_DEBUG);
}
if (flags & FLAGS_MAIN_90MS) {
if (!button_activated) {
gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
button_activated = 1;
}
#ifdef USE_USB_EJECT_INSERT
if (EjectInsertMediaMode == EJECT_INSERT_WAIT_TO_EJECT) {
if (--EjectInsertMediaCounter == 0) {
// Have waited ~0.5 second, time to eject media
EjectInsertMediaMode = EJECT_INSERT_WAIT_TO_INSERT;
EjectInsertMediaCounter = EJECT_INSERT_DELAY_500MS;
USBD_MSC_MediaReady = __FALSE;
}
}
if ((EjectInsertMediaMode == EJECT_INSERT_WAIT_TO_INSERT) && !USBD_MSC_MediaReadyEx) {
// The host computer have questioned the state and received
// the message that the media has been removed
if (--EjectInsertMediaCounter == 0) {
// Have waited ~0.5 seconds after ejecting, time to insert media
EjectInsertMediaMode = EJECT_INSERT_INACTIVE;
USBD_MSC_MediaReady = __TRUE;
}
}
#endif
// Update USB busy status
switch (usb_busy) {
case USB_ACTIVE:
if (DECZERO(usb_busy_count) == 0) {
usb_busy=USB_IDLE;
}
break;
case USB_IDLE:
default:
break;
}
// Update USB connect status
switch (usb_state) {
case USB_DISCONNECTING:
// Wait until USB is idle before disconnecting
if (usb_busy == USB_IDLE) {
usbd_connect(0);
usb_state = USB_DISCONNECTED;
}
break;
case USB_DISCONNECT_CONNECT:
// Wait until USB is idle before disconnecting
if ((usb_busy == USB_IDLE) && (DECZERO(usb_state_count) == 0)) {
usbd_connect(0);
usb_state = USB_CONNECTING;
// Update HTML file
update_html_file();
// Delay the connecting state before reconnecting to the host - improved usage with VMs
usb_state_count = 10; //(90ms * 10 = 900ms)
}
break;
case USB_CONNECTING:
// Wait before connecting
if (DECZERO(usb_state_count) == 0) {
usbd_connect(1);
usb_state = USB_CHECK_CONNECTED;
}
break;
case USB_CHECK_CONNECTED:
if(usbd_configured()) {
if (!thread_started) {
os_tsk_create_user(hid_process, DAP_TASK_PRIORITY, (void *)stk_dap_task, DAP_TASK_STACK);
serial_task_id = os_tsk_create_user(serial_process, SERIAL_TASK_PRIORITY, (void *)stk_serial_task, SERIAL_TASK_STACK);
thread_started = 1;
}
usb_state = USB_CONNECTED;
}
break;
case USB_CONNECTED:
case USB_DISCONNECTED:
default:
break;
}
}
// 30mS tick used for flashing LED when USB is busy
if (flags & FLAGS_MAIN_30MS) {
if (dap_led_usb_activity && ((dap_led_state == LED_FLASH) || (dap_led_state == LED_FLASH_PERMANENT))) {
// Flash DAP LED ONCE
if (dap_led_value) {
dap_led_value = 0;
} else {
dap_led_value = 1; // Turn on
if (dap_led_state == LED_FLASH) {
dap_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_dap_led(dap_led_value);
}
if (msd_led_usb_activity && ((msd_led_state == LED_FLASH) || (msd_led_state == LED_FLASH_PERMANENT))) {
// Flash MSD LED ONCE
if (msd_led_value) {
msd_led_value = 0;
} else {
msd_led_value = 1; // Turn on
if (msd_led_state == LED_FLASH) {
msd_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_msd_led(msd_led_value);
}
if (cdc_led_usb_activity && ((cdc_led_state == LED_FLASH) || (cdc_led_state == LED_FLASH_PERMANENT))) {
// Flash CDC LED ONCE
if (cdc_led_value) {
cdc_led_value = 0;
} else {
cdc_led_value = 1; // Turn on
if (cdc_led_state == LED_FLASH) {
cdc_led_usb_activity = 0;
}
}
// Update hardware
gpio_set_cdc_led(cdc_led_value);
}
}
}
}
int main(void)
{
BoardInit();
SystemCoreClockUpdate();
LedConnectedOn();
if (UserAppDescriptor.UserInit != NULL)
{
pUserAppDescriptor = &UserAppDescriptor;
pUserAppDescriptor->UserInit((CoreDescriptor_t *)&CoreDescriptor);
}
LedConnectedOff();
Delay_ms(100);
/*
led_count = 0;
// Check for USB connected
while ((GPIOA->IDR & GPIO_Pin_11) != 0)
{
if (led_count++ == 0)
LedConnectedOn();
else if (led_count == 5)
LedConnectedOff();
else if (led_count == 25)
led_count = 0;
Delay_ms(10);
}
LedConnectedOff();
*/
// USB Device Initialization and connect
usbd_init();
usbd_connect(__TRUE);
led_count = 0;
while (!usbd_configured()) // Wait for USB Device to configure
{
if (led_count++ == 0)
LedConnectedOn();
else if (led_count == 5)
LedConnectedOff();
else if (led_count == 50)
led_count = 0;
Delay_ms(10);
}
LedConnectedOff();
Delay_ms(100); // Wait for 100ms
led_count = 0;
led_timeout = TIMEOUT_DELAY;
usb_rx_ch = -1;
usb_tx_ch = -1;
while (1)
{
if (pUserAppDescriptor == NULL)
{ // No user application
if (led_count++ == 1000000)
{
led_count = 0;
LedConnectedToggle();
}
usbd_hid_process();
}
else if (!usbd_hid_process())
{
// No packet processing
if (led_timeout == 1000)
{
LedConnectedOn();
}
else if (led_timeout == 0)
{
LedConnectedOff();
led_timeout = TIMEOUT_DELAY;
}
led_timeout--;
}
else
{
led_timeout = TIMEOUT_DELAY;
}
#if (USBD_CDC_ACM_ENABLE == 1)
NotifyOnStatusChange();
// USB -> UART
if (usb_rx_ch == -1)
usb_rx_ch = USBD_CDC_ACM_GetChar();
if (usb_rx_ch != -1)
{
if (UART_PutChar (usb_rx_ch) == usb_rx_ch)
usb_rx_ch = -1;
}
// UART -> USB
if (usb_tx_ch == -1)
usb_tx_ch = UART_GetChar();
if (usb_tx_ch != -1)
{
if (USBD_CDC_ACM_PutChar(usb_tx_ch) == usb_tx_ch)
usb_tx_ch = -1;
}
#endif
}
}
