/*
* Copyright ( C ) 2016 The Android Open Source Project
*
* Licensed under the Apache License , Version 2 . 0 ( 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.apache.org/licenses/LICENSE-2.0
*
* 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 .
*/
#ifndef _USART_H_
#define _USART_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <gpio.h>
#include <stdint.h>
struct usart;
typedef uint8_t UsartPort;
typedef enum
{
USART_DATA_BITS_8,
USART_DATA_BITS_9,
} UsartDataBitsCfg;
typedef enum
{
USART_STOP_BITS_0_5,
USART_STOP_BITS_1_0,
USART_STOP_BITS_1_5,
USART_STOP_BITS_2_0,
} UsatStopBitsCfg;
typedef enum
{
USART_PARITY_NONE,
USART_PARITY_EVEN,
USART_PARITY_ODD,
} UsartParityCfg;
typedef enum
{
USART_FLOW_CONTROL_NONE,
USART_FLOW_CONTROL_RTS,
USART_FLOW_CONTROL_CTS,
USART_FLOW_CONTROL_RTS_CTS,
} UsartFlowControlCfg;
void usartOpen(struct usart* __restrict usart, UsartPort port, /* port number is 1-based!!!!! */
uint32_t txGpioNum, uint32_t rxGpioNum,
uint32_t baud, UsartDataBitsCfg data_bits,
UsatStopBitsCfg stop_bits, UsartParityCfg parity,
UsartFlowControlCfg flow_control);
void usartClose(const struct usart* __restrict usart);
void usartFlush(const struct usart* __restrict usart);
void usartPutchar(const struct usart* __restrict usart, char c);
#ifdef __cplusplus
}
#endif
#endif
Messung V0.5 in Prozent C=91 H=95 G=92
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(vorverarbeitet am 2026-06-27)
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