update usb_cdcacm function calls

application.c

@@ -12,10 +12,10 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-/** STM32F1 example
+/** STM32F1 application example
  *  @file main.c
  *  @author King Kévin <kingkevin@cuvoodoo.info>
- *  @date 2016
+ *  @date 2016-2017
  */
 
 /* standard libraries */
@@ -59,9 +59,9 @@ size_t putc(char c)
 	} else if ('\r' == c || '\n' == c) { // send CR+LF newline for most carriage return and line feed combination
 		if (0==newline || c==newline) { // send newline only if not already send (and only once on \r\n or \n\r)
 			usart_putchar_nonblocking('\r'); // send CR over USART
-			cdcacm_putchar('\r'); // send CR over USB
+			usb_cdcacm_putchar('\r'); // send CR over USB
 			usart_putchar_nonblocking('\n'); // send LF over USART
-			cdcacm_putchar('\n'); // send LF over USB
+			usb_cdcacm_putchar('\n'); // send LF over USB
 			length += 2; // remember we printed 2 characters
 			newline = c; // remember on which character we sent the newline
 		} else {
@@ -69,7 +69,7 @@ size_t putc(char c)
 		}
 	} else {
 		usart_putchar_nonblocking(c); // send byte over USART
-		cdcacm_putchar(c); // send byte over USB
+		usb_cdcacm_putchar(c); // send byte over USB
 		newline = 0; // clear new line
 		length++; // remember we printed 1 character
 	}
@@ -93,14 +93,18 @@ static void process_command(char* str)
 		goto error;
 	}
 	// parse command
-	if (0==strcmp(word,"help")) {
+	if (0==strcmp(word,"h") || 0==strcmp(word,"help") || 0==strcmp(word,"?")) {
 		printf("available commands:\n");
 		printf("led [on|off|toggle]\n");
-		printf("time [HH:MM:SS]\n");
-	} else if (0==strcmp(word,"led")) {
+	} else if (0==strcmp(word,"l") || 0==strcmp(word,"led")) {
 		word = strtok(NULL,delimiter);
 		if (!word) {	
-			goto error;
+			printf("LED is ");
+			if (gpio_get(GPIO(LED_PORT), GPIO(LED_PIN))) {
+				printf("on\n");
+			} else {
+				printf("off\n");
+			}
 		} else if (0==strcmp(word,"on")) {
 			led_on(); // switch LED on
 			printf("LED switched on\n"); // notify user		
@@ -148,7 +152,7 @@ void main(void)
 	board_setup(); // setup board
     usart_setup(); // setup USART (for printing)
 	cdcacm_setup(); // setup USB CDC ACM (for printing)
-	printf("welcome to the STM32F1 CuVoodoo example code\n"); // print welcome message
+	printf("welcome to the CuVoodoo STM32F1 example application\n"); // print welcome message
 
 #if !(DEBUG)
 	// show watchdog information
@@ -186,10 +190,10 @@ void main(void)
 			c = usart_getchar(); // store receive character
 			char_flag = true; // notify character has been received
 		}
-		while (cdcacm_received) { // data received over USB
+		while (usb_cdcacm_received) { // data received over USB
 			action = true; // action has been performed
 			led_toggle(); // toggle LED
-			c = cdcacm_getchar(); // store receive character
+			c = usb_cdcacm_getchar(); // store receive character
 			char_flag = true; // notify character has been received
 		}
 		while (char_flag) { // user data received