Resolved! STM32F103VBTx GPIOC pin3 Pulling up first and then down will result in failure to receive CDC data within 100ms,Probabilistic
Hi:STM32F103VBTx STM32CubeMX_v5-3-0The basic code is generated by cube.There are the following changes:static int8_t CDC_Receive_FS(uint8_t* Buf, uint32_t *Len){ /* USER CODE BEGIN 6 */ CDC_rx_len += *Len;//pinjie USBD_CDC_SetRxBuffer(&hUsb...