UART_term.c File Reference

UART terminal. More...

#include <stdio.h>
#include "sarmfsw.h"
#include "stdream_rdir.h"
#include "UART_term.h"

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Functions
FctERR	UART_Term_Init (UART_HandleTypeDef *const huart, const size_t len)
	Initialize UART terminal.
FctERR	UART_Term_Launch_It_Rx (UART_HandleTypeDef *const huart)
	Start UART SERIAL DEBUG Rx interruptions.
FctERR	UART_Term_Wait_Ready (const UART_HandleTypeDef *const huart)
	Waiting for UART global state to be ready for next transmission.
FctERR	UART_Term_Flush_RxBuf (const UART_HandleTypeDef *const huart)
	Clear buffer in used for SERIAL DEBUG.
FctERR	UART_Term_Send (UART_HandleTypeDef *const huart, const char *str, const size_t len)
	Sends string to UART.
FctERR	UART_Term_Message_Handler (const char *msg, const size_t len)
	Treat fully received message.
void	UART_Term_RxCpltCallback (UART_HandleTypeDef *const huart)
	UART Term Rx Transfer completed callback.
void	HAL_UART_RxCpltCallback (UART_HandleTypeDef *huart)
	Rx Transfer completed callback.

Variables
char	breakout_char = '!'
	breakout char (message complete)
UART_HandleTypeDef *	dbg_uart
	Instance of UART debug terminal.

Detailed Description

UART terminal.

Author

SMFSW

Copyright

MIT (c) 2017-2026, SMFSW

Note

UART redirection is enabled when UART_REDIRECT symbol is defined at project level

define DBG_SERIAL at project level with an UART instance to send printf likes strings to UART

It is recommended to have interrupts enabled for UART instance (and is required when reception is needed)

Function Documentation

HAL_UART_RxCpltCallback()

void HAL_UART_RxCpltCallback

(

UART_HandleTypeDef *

huart

)

Rx Transfer completed callback.

Weak Functions

Weak implementation of HAL_UART_RxCpltCallback in the library (will get precedence over HAL function)

Warning

You should probably implement your own callback, especially with multiple UART busses

Parameters

[in,out]

huart

- UART handle

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UART_Term_Flush_RxBuf()

FctERR UART_Term_Flush_RxBuf

(

const UART_HandleTypeDef *const

huart

)

Clear buffer in used for SERIAL DEBUG.

Parameters

[in]

huart

- UART handle

Returns

FctERR - Error code

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UART_Term_Init()

FctERR UART_Term_Init	(	UART_HandleTypeDef *const	huart,
		const size_t	len )

Initialize UART terminal.

Parameters

[in]	huart	- UART handle
[in]	len	- buffer length

Returns

FctERR - Error code

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UART_Term_Launch_It_Rx()

FctERR UART_Term_Launch_It_Rx

(

UART_HandleTypeDef *const

huart

)

Start UART SERIAL DEBUG Rx interruptions.

Parameters

[in]

huart

- UART handle

Returns

FctERR - Error code

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UART_Term_Message_Handler()

FctERR UART_Term_Message_Handler	(	const char *	msg,
		const size_t	len )

Treat fully received message.

Weak Functions

This function is implemented as weak to be implemented in projects (weak one only prints & flushes the buffer)

Parameters

[in]	msg	- pointer to received message
[in]	len	- received message length

Returns

FctERR - Error code

UART_Term_RxCpltCallback()

void UART_Term_RxCpltCallback

(

UART_HandleTypeDef *const

huart

)

UART Term Rx Transfer completed callback.

Note

Can be used with callback registering CubeMX functionality

Warning

When not using callback registering CubeMX functionality, you may need to implement your own custom HAL_UART_RxCpltCallback weak HAL_UART_RxCpltCallback is defined in the library (handle for debug UART only), you may have to define your own when multiple UARTs are in use.

Parameters

[in,out]

huart

- UART handle

Note

Shall be called from HAL_UART_RxCpltCallback with proper UART instance

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UART_Term_Send()

FctERR UART_Term_Send	(	UART_HandleTypeDef *const	huart,
		const char *	str,
		const size_t	len )

Sends string to UART.

Parameters

[in]	huart	- UART handle
[in]	str	- pointer to string to send
[in]	len	- length of string

Returns

FctERR - Error code

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UART_Term_Wait_Ready()

FctERR UART_Term_Wait_Ready

(

const UART_HandleTypeDef *const

huart

)

Waiting for UART global state to be ready for next transmission.

Parameters

[in]

huart

- UART handle

Returns

FctERR - Error code

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Variable Documentation

breakout_char

char breakout_char = '!'

breakout char (message complete)

Note

Default user breakout char set to '!' and '\r' is built-in default breakout char

dbg_uart

UART_HandleTypeDef* dbg_uart

Instance of UART debug terminal.

UART debug terminal instance.