2015-05-06 03:06 AM
Hi at all,
I'm using a STM32F4 (with HAL libraries) and I have configured the USB as device in order to realize a communication wit the PC through the virtual COM port.When I send the first packed (from PC to MCU) I have no problem. STM32F4 receives packed and sends the response.But when I send second one MCU doesn't receives nothing (OTG_FS_IRQHandler is not activated).Somebody can help me?Thank you very much #stm32f4-usb-virtual-com-port2015-05-07 02:21 AM
Hi lucaV,
at start I've had similar problems with CDC. Look in the forum for USB CDC, there is a thread that discusses the subject rather well.2015-05-29 08:38 AM
I have the same problem with STM32F4, STM32F373 and STM32F072
2015-05-29 01:17 PM
place a
USBD_CDC_ReceivePacket(hUsbDevice_0);
after reading receive buffer.