CDC implementation

boards.txt

@@ -596,9 +596,9 @@ RemRam.menu.pnum.REMRAM_V1.build.variant=REMRAM_V1
 RemRam.menu.pnum.REMRAM_V1.build.cmsis_lib_gcc=arm_cortexM7l_math
 
 # Virtual COM port
-#RemRam.menu.usb.none=None
-#RemRam.menu.usb.CDC=CDC
-#RemRam.menu.usb.CDC.build.enable_usb={build.usb_flags} -DUSBD_USE_CDC -DUSE_USB_FS
+RemRam.menu.usb.none=None
+RemRam.menu.usb.CDC=CDC
+RemRam.menu.usb.CDC.build.enable_usb={build.usb_flags}
 
 # Upload menu
 RemRam.menu.upload_method.STLinkMethod=STLink

cores/arduino/main.cpp

@@ -54,10 +54,6 @@ int main( void )
 {
   initVariant();
 
-#if defined(USBCON)
-  usbd_interface_init();
-#endif
-
   setup();
 
   for (;;)

cores/arduino/stm32/timer.c

@@ -560,8 +560,8 @@ uint32_t getTimerIrq(TIM_TypeDef* tim)
 void TimerHandleDeinit(stimer_t *obj)
 {
   if(obj != NULL) {
-    HAL_TIM_Base_DeInit(&(obj->handle));
     HAL_TIM_Base_Stop_IT(&(obj->handle));
+    HAL_TIM_Base_DeInit(&(obj->handle));
   }
 }
 
@@ -1015,6 +1015,18 @@ void attachIntHandle(stimer_t *obj, void (*irqHandle)(stimer_t *))
   obj->irqHandle = irqHandle;
 }
 
+/**
+  * @brief  Attached an interrupt handler
+  * @param  htim : TIM handle
+  * @param  irqHandle : interrupt handler
+  * @retval none
+  */
+void timer_attach_interrupt_handle(TIM_HandleTypeDef *htim,  void (*irqHandle)(stimer_t *))
+{
+  stimer_t *obj = get_timer_obj(htim);
+  obj->irqHandle = irqHandle;
+}
+
 
 /******************************************************************************/
 /*                            TIMx IRQ HANDLER                                */

cores/arduino/stm32/timer.h

@@ -180,6 +180,7 @@ struct timer_s{
 
 void timer_enable_clock(TIM_HandleTypeDef *htim);
 void timer_disable_clock(TIM_HandleTypeDef *htim);
+void timer_attach_interrupt_handle(TIM_HandleTypeDef *htim,  void (*irqHandle)(stimer_t *));
 
 void TimerHandleInit(stimer_t *obj, uint16_t period, uint16_t prescaler);
 void TimerHandleDeinit(stimer_t *obj);

libraries/USBSerial/examples/USBSerial/USBSerial.ino

@@ -0,0 +1,16 @@
+#include <USBSerial.h>
+
+void setup() {
+  // Default baudrate is set to 9600
+  SerialUSB.begin();
+}
+
+void loop() {
+  SerialUSB.println("Hello world!");
+  delay(1000);
+
+  while(SerialUSB.available()) {
+    char c = SerialUSB.read();
+    SerialUSB.print(c);
+  }
+}

libraries/USBSerial/library.properties

@@ -0,0 +1,9 @@
+name=USB Serial
+version=1.0.0
+author=Wi6Labs
+maintainer=STMicroelectronics
+sentence=Provides USB CDC class.
+paragraph=
+category=Device Control
+url=https://github.com/stm32duino/Arduino_Core_STM32
+architectures=stm32