mirror of
https://github.com/licsber/micropython.git
synced 2024-09-20 17:10:24 +08:00
d363133917
Previous to this patch the USB CDC driver used TIM3 to trigger the sending of outgoing data over USB serial. This patch changes the behaviour so that the USB SOF interrupt is used to trigger the processing of the sending. This reduces latency and increases bandwidth of outgoing data. Thanks to Martin Fischer, aka @hoihu, for the idea and initial prototype. See PR #1713.
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*/
|
|
|
|
/**
|
|
******************************************************************************
|
|
* @file USB_Device/CDC_Standalone/Inc/usbd_cdc_interface.h
|
|
* @author MCD Application Team
|
|
* @version V1.0.1
|
|
* @date 26-February-2014
|
|
* @brief Header for usbd_cdc_interface.c file.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
|
|
*
|
|
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
|
|
* You may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at:
|
|
*
|
|
* http://www.st.com/software_license_agreement_liberty_v2
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
extern const USBD_CDC_ItfTypeDef USBD_CDC_fops;
|
|
|
|
int USBD_CDC_IsConnected(void);
|
|
void USBD_CDC_SetInterrupt(int chr, void *data);
|
|
|
|
int USBD_CDC_TxHalfEmpty(void);
|
|
int USBD_CDC_Tx(const uint8_t *buf, uint32_t len, uint32_t timeout);
|
|
void USBD_CDC_TxAlways(const uint8_t *buf, uint32_t len);
|
|
|
|
int USBD_CDC_RxNum(void);
|
|
int USBD_CDC_Rx(uint8_t *buf, uint32_t len, uint32_t timeout);
|